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面包屑導航結束 --> <!-- 頁面標題開始 --> <div id="n1l1njb9b" class="title"> <h3><a>加工中心立柱的計算模態分析<small></small></a></h3> </div> <!-- 頁面標題結束 --> <hr class="featurette-divider"> <!-- 中部開始 --> <div id="n1l1njb9b" class="container"> <!-- 正文 --> <div id="n1l1njb9b" class="lead" id="print"> <p>加工中心立柱的計算模態分析<br /> 在動態分析領域，結構的模態分析的使用是非常廣泛的，其主要目的是獲取結構的 振型、固有頻率等模態參數。模態分析方法主要分析計算模態分析和試驗模態分析兩種， 而計算與試驗的相互結合、相互驗證更有助于得出準確的結果[48]。通過觀察振型可以知 道在某個固有頻率（共振頻率）下結構的變形趨勢，進而可以從這些較弱的部分來加強 結構的剛性。其次還可以確定支撐結構和其它結構放置時的理想位置，盡量不把物體放 置在振型幅值較大的位置。<br /> 利用有限單元法來做模態分析的基本思路是，首先將連續體離散，化為有限數目的 單元結構，然后基于平衡條件和變形協調條件，將系統看作多自由度系統來求解。<br /> 本小節利用ANSYS有限元分析軟件對臥式加工中心的立柱結構進行計算模態分 析，得出其前四階模態的相關振型和固有頻率。不考慮網格劃分和單元類型的話，結構 的模態分析結果主要取決于兩點，其一是結構本身的特性，其二是結構所受到的約束。 根據結果所受到的約束，可以將模態分析分為自由模態分析和約束模態分析兩種。自由 模態分析即不施加任何約束使結構處于一種自由狀態，分析結果的前六階為6個剛體模態，包括由結構質量決定的3個平動模態和由轉動慣量決定的3個轉動模態。<br /> 材料屬性定義與2.1.2小節中靜力分析中的定義一樣，為灰鑄鐵HT250。<br /> 2. 2.1自由模態分析<br /> 劃分網格后，不添加任何約束，修改Analysis Setting中的Max Modes to find為12, 求解立柱的前12階自由模態。相應的固有頻率和振型描述如下表所示：<br /> 表2.2前6階自由模態固有頻率值和振型描述<br /> Tab.2.2 1st - 6th natural frequency and free mode description of colimm</p> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;mso-table-layout-alt:fixed;mso-table-overlap: never;mso-padding-alt:0cm .5pt 0cm .5pt"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;height:34.1pt;mso-height-rule: exactly"> <td width="52" style="width: 39.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 34.1pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:11.0pt;text-align:center; text-indent:0cm;line-height:10.5pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">階次</span></span><o:p></o:p></p> </td> <td width="96" style="width: 71.75pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 34.1pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 15.6pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">固有頻率 </span><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">(Hz)</span></span></span><o:p></o:p></p> </td> <td width="55" style="width: 41.05pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 34.1pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:8.0pt;text-align:center; text-indent:0cm;line-height:10.5pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">階次</span></span><o:p></o:p></p> </td> <td width="75" style="width: 56.15pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 34.1pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 15.6pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">固有頻率 </span><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">(Hz)</span></span></span><o:p></o:p></p> </td> <td width="196" style="width: 147.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 34.1pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 10.5pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">振型描述</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:1;height:17.05pt;mso-height-rule:exactly"> <td width="52" style="width: 39.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-right:15.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">V</span></span></span><o:p></o:p></p> </td> <td width="96" style="width: 71.75pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">0</span></span></span><o:p></o:p></p> </td> <td width="55" style="width: 41.05pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:8.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">1(7</span></span><span id="n1l1njb9b" class="2105pt"><span lang="EN-US">’）</span></span></span><o:p></o:p></p> </td> <td width="75" style="width: 56.15pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:14.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">135.11</span></span></span><o:p></o:p></p> </td> <td width="196" style="width: 147.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 10.5pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">立柱兩支撐面反向振動</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:2;height:19.45pt;mso-height-rule:exactly"> <td width="52" style="width: 39.35pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-right:15.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">2</span></span><span id="n1l1njb9b" class="2105pt">，</span></span><o:p></o:p></p> </td> <td width="96" style="width: 71.75pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">0</span></span></span><o:p></o:p></p> </td> <td width="55" style="width: 41.05pt; border-style: none none none solid; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:8.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">2(8</span></span><span id="n1l1njb9b" class="2105pt"><span lang="EN-US">’）</span></span></span><o:p></o:p></p> </td> <td width="75" style="width: 56.15pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:14.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">142.37</span></span></span><o:p></o:p></p> </td> <td width="196" style="width: 147.35pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:10.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">立柱沿以</span><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">Y</span></span><span id="n1l1njb9b" class="2105pt">向為軸的扭動</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:3;height:19.45pt;mso-height-rule:exactly"> <td width="52" style="width: 39.35pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-right:15.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">3</span></span><span id="n1l1njb9b" class="2105pt">，</span></span><o:p></o:p></p> </td> <td width="96" style="width: 71.75pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">0</span></span></span><o:p></o:p></p> </td> <td width="55" style="width: 41.05pt; border-style: none none none solid; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:8.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">3(9</span></span><span id="n1l1njb9b" class="2105pt"><span lang="EN-US">，）</span></span></span><o:p></o:p></p> </td> <td width="75" style="width: 56.15pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:14.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">162.35</span></span></span><o:p></o:p></p> </td> <td width="196" style="width: 147.35pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:10.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">兩支撐面在</span><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">Y</span></span><span id="n1l1njb9b" class="2105pt">向上下振動</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:4;height:19.45pt;mso-height-rule:exactly"> <td width="52" style="width: 39.35pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">4</span></span><span id="n1l1njb9b" class="2105pt">，</span></span><o:p></o:p></p> </td> <td width="96" style="width: 71.75pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:9.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">4.6636e-004</span></span></span><o:p></o:p></p> </td> <td width="55" style="width: 41.05pt; border-style: none none none solid; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:8.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">4(10</span></span><span id="n1l1njb9b" class="2105pt"><span lang="EN-US">，）</span></span></span><o:p></o:p></p> </td> <td width="75" style="width: 56.15pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:14.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">228.44</span></span></span><o:p></o:p></p> </td> <td width="196" style="width: 147.35pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 10.5pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">以支撐面中線為軸振動</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:5;height:19.45pt;mso-height-rule:exactly"> <td width="52" style="width: 39.35pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-right:15.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">5,</span></span></span><o:p></o:p></p> </td> <td width="96" style="width: 71.75pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:9.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">9.6344e-004</span></span></span><o:p></o:p></p> </td> <td width="55" style="width: 41.05pt; border-style: none none none solid; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:8.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">5(11</span></span><span id="n1l1njb9b" class="2105pt"><span lang="EN-US">，）</span></span></span><o:p></o:p></p> </td> <td width="75" style="width: 56.15pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:14.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">237.30</span></span></span><o:p></o:p></p> </td> <td width="196" style="width: 147.35pt; padding: 0cm 0.5pt; height: 19.45pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:10.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">支撐面以</span><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">Y</span></span><span id="n1l1njb9b" class="2105pt">向中線為軸振動</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:6;mso-yfti-lastrow:yes;height:22.55pt;mso-height-rule: exactly"> <td width="52" style="width: 39.35pt; border-style: none none solid; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-right:15.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">6</span></span><span id="n1l1njb9b" class="2105pt">，</span></span><o:p></o:p></p> </td> <td width="96" style="width: 71.75pt; border-style: none none solid; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:9.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">1.3707e-003</span></span></span><o:p></o:p></p> </td> <td width="55" style="width: 41.05pt; border-style: none none solid solid; border-left-color: windowtext; border-left-width: 1pt; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:8.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">6(12</span></span><span id="n1l1njb9b" class="2105pt"><span lang="EN-US">，）</span></span></span><o:p></o:p></p> </td> <td width="75" style="width: 56.15pt; border-style: none none solid; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:14.0pt;text-align:center; text-indent:0cm;line-height:16.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:355.7pt;mso-element-frame-height: 151.45pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">248.74</span></span></span><o:p></o:p></p> </td> <td width="196" style="width: 147.35pt; border-style: none none solid; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 10.5pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:355.7pt;mso-element-frame-height:151.45pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:130.35pt;mso-element-top:277.65pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">兩支撐面做開合式振動</span></span><o:p></o:p></p> </td> </tr> </tbody> </table> <p>自由模態的前三階固有頻率為零，第4’、5’和6’階固有頻率接近零，這是由于計算 誤差造成的，故前六階模態固有頻率均可看作為零，其振動是由于水平方向或者垂直方 向的力導致的且主要在低頻段。鑒于前六階模態的固有頻率為零，將實際的第七階模態 (彈性體模態的初始模態）看作第1階模態并以此向下對應之。第1階模態到第4模態 的振型云圖如下如所示：<br /> <br /> 2. 2. 2約束模態分析<br /> 約束模態分析即是考慮在加工中心的實際工作情況中立柱的邊界條件，因為對于一 個系統來說，若與之連接的系統發生改變那么其自身的動態特性也會收到影響而改變 [5Q]。邊界條件的設定會對結構的固有頻率和模態振型產生較大影響，這可以通過對比自 由模態和約束模態分析的結果看出。<br /> 約束位置首先是位于立柱下底面上的滑塊接合面上，約束形式為除X向滑動外的固 定約束，其次是下底面上的滾珠絲杠接合面，約束形式為固定約束。<br /> <br /> 前四階模態的具體的固有頻率和其相應的振型描述如下表所示：<br /> 表2.3前4階約束模態固有頻率值和振型描述<br /> Tab.2.3 1st - 4th natural frequency and constraint mode description of column</p> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;mso-table-layout-alt:fixed;mso-table-overlap: never;mso-padding-alt:0cm .5pt 0cm .5pt"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;height:18.5pt;mso-height-rule: exactly"> <td width="70" style="width: 52.8pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 18.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-left:13.0pt;text-align:center; text-indent:0cm;line-height:10.5pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:283.45pt;mso-element-frame-height: 90.0pt;mso-element-wrap:none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal: page;mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">階次</span></span><o:p></o:p></p> </td> <td width="109" style="width: 82.1pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 18.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">頻率</span><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">(Hz)</span></span></span><o:p></o:p></p> </td> <td width="198" style="width: 148.55pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 18.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 10.5pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">振型描述</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:1;height:16.1pt;mso-height-rule:exactly"> <td width="70" style="width: 52.8pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 16.1pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">1</span></span></span><o:p></o:p></p> </td> <td width="109" style="width: 82.1pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 16.1pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">60.648</span></span></span><o:p></o:p></p> </td> <td width="198" style="width: 148.55pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 16.1pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">立柱沿</span><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">Y</span></span><span id="n1l1njb9b" class="2105pt">方向擺動</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:2;height:17.5pt;mso-height-rule:exactly"> <td width="70" style="width: 52.8pt; padding: 0cm 0.5pt; height: 17.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">2</span></span></span><o:p></o:p></p> </td> <td width="109" style="width: 82.1pt; padding: 0cm 0.5pt; height: 17.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">129.51</span></span></span><o:p></o:p></p> </td> <td width="198" style="width: 148.55pt; padding: 0cm 0.5pt; height: 17.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">立柱向</span><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">X</span></span><span id="n1l1njb9b" class="2105pt">正方向擺動</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:3;height:17.75pt;mso-height-rule:exactly"> <td width="70" style="width: 52.8pt; padding: 0cm 0.5pt; height: 17.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">3</span></span></span><o:p></o:p></p> </td> <td width="109" style="width: 82.1pt; padding: 0cm 0.5pt; height: 17.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">170.62</span></span></span><o:p></o:p></p> </td> <td width="198" style="width: 148.55pt; padding: 0cm 0.5pt; height: 17.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">立柱繞</span><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">Z</span></span><span id="n1l1njb9b" class="2105pt">方向扭動</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:4;mso-yfti-lastrow:yes;height:20.15pt;mso-height-rule: exactly"> <td width="70" style="width: 52.8pt; border-style: none none solid; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 20.15pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">4</span></span></span><o:p></o:p></p> </td> <td width="109" style="width: 82.1pt; border-style: none none solid; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 20.15pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 16.0pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2AngsanaUPC"><span lang="EN-US">184.47</span></span></span><o:p></o:p></p> </td> <td width="198" style="width: 148.55pt; border-style: none none solid; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 20.15pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm;line-height: 10.5pt;mso-line-height-rule:exactly;background:transparent;mso-element:frame; mso-element-frame-width:283.45pt;mso-element-frame-height:90.0pt;mso-element-wrap: none;mso-element-anchor-vertical:page;mso-element-anchor-horizontal:page; mso-element-left:166.45pt;mso-element-top:417.1pt"><span style="font-size: x-small;"><span id="n1l1njb9b" class="2105pt">立柱兩支撐面反向振動</span></span><o:p></o:p></p> </td> </tr> </tbody> </table></div> <div id="n1l1njb9b" class="blank30"></div> <!-- tag --> <div id="n1l1njb9b" class="blank10"></div> 標簽： <a href='/index.php?case=tag&act=show&tag=%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>加工中心</a> <!-- 分類 --> <div id="n1l1njb9b" class="blank10"></div> 分類： <a href='/bethel/type/jnc/type-1.html' target='_blank'>加工中心</a> <div id="n1l1njb9b" class="blank30"></div> <!--自動調用自定義字段--> <div id="n1l1njb9b" class="blank20"></div> <div id="n1l1njb9b" class="blank30"></div> <!-- 投票 --> <script src="/index.php?case=vote&act=view&aid=1371"></script> <!-- 自定義表單開始 --> 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