关于cosmosworks2007不同网格大小问题

xybu

<span lang="ZH-CN" style="FONT-SIZE: 12pt; FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">今天做一测试时，其它测试条件不变，网格大小不同，其结果会有很大不同</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></p><p></p><p></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">我做了一个统计，下楼有部分图片，<span lang="ZH-CN" style="FONT-SIZE: 12pt; FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">希望有高手解释和解决</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">!!!!</span></span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></p><p></p><p></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="mso-fareast-language: ZH-CN;"><font face="Times New Roman"><p></p></font></span></p><p></p><p></p><p></p><p></p></span><table bordercolor="#cccccc" cellspacing="2" cellpadding="3" width="100%" bgcolor="#ffffff" border="1"><tbody><tr><td>&nbsp;<span lang="ZH-CN" style="FONT-SIZE: 12pt; FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">网格大小</span></td><td>&nbsp;<span lang="ZH-CN" style="FONT-SIZE: 12pt; FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">应力　（</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">mpa</span><span lang="ZH-CN" style="FONT-SIZE: 12pt; FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">）</span></td><td>&nbsp;<span lang="ZH-CN" style="FONT-SIZE: 12pt; FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">寿命　（周期）</span></td></tr><tr><td>&nbsp;0.2</td><td>&nbsp;10.2</td><td>&nbsp;13700</td></tr><tr><td>&nbsp;0.3</td><td>&nbsp;9.13</td><td>&nbsp;23900</td></tr><tr><td>&nbsp;0.4</td><td>&nbsp;9.13</td><td>&nbsp;23900</td></tr><tr><td>&nbsp;0.5</td><td>&nbsp;8.07</td><td>&nbsp;44400</td></tr><tr><td>&nbsp;0.6</td><td>&nbsp;8.1</td><td>&nbsp;43600</td></tr><tr><td>&nbsp;0.7</td><td>&nbsp;7.94</td><td>&nbsp;48400</td></tr><tr><td>&nbsp;0.8</td><td>&nbsp;7.58</td><td>&nbsp;62100</td></tr><tr><td>&nbsp;0.9</td><td>&nbsp;7.69</td><td>&nbsp;57200</td></tr><tr><td>&nbsp;1.0</td><td>&nbsp;7.63</td><td>&nbsp;60000</td></tr></tbody></table>

[此贴子已经被作者于2007-1-27 15:44:52编辑过]

sun095

<p>真是奇怪啊，差别这么大,百分之三十的差距,哪个可信呢?</p>

sun095

<p>今天我看了篇文章,上面提到尖角的问题,我想如果你两板之间用圆弧角过渡的话,结果就会是收敛的了,因为好像根据弹性力学的解释是,尖角部分的应力会是无限大的.</p>

黄浪

我现在就是搞不懂<strong>cosmosworks做的分析准不准呀</strong>

泡泡鱼

我也有同感，软件使用起来越简单，结果准确性就越想知道有多精确