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标题: 各位进行AUT时可成遇到这样的问题? [打印本页]

作者: victorrose    时间: 2004-8-30 06:54
标题: 各位进行AUT时可成遇到这样的问题?


<P><FONT size=3>如下图所示,为了加工上的需要,需在光线有效径外预留约<FONT face="Times New Roman">0.2MM</FONT>的长度。小弟使用下列两种方式限制光线有效径外约<FONT face="Times New Roman">0.2MM</FONT>处的边缘厚度,可是得到的结果却不同,何以如此?

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<P><FONT size=3><FONT face="Times New Roman"></FONT>限制条件<FONT face="Times New Roman">1</FONT>在光线有效径外预留约<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="0.21" UnitName="mm"><FONT face="Times New Roman">0.21MM</FONT></st1:chmetcnv>的长度
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<P><FONT face="Times New Roman"><FONT size=3>@edge==(CT S11 Z1)+(SAGF(12,1,0,((SD S12 Z1)+0.21)))-(SAGF(11,1,0,((SD S11 Z1)+0.21)))
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<P><FONT face="Times New Roman"><FONT size=3>@edge  0.6
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<P >优化结果检验(如左下图)</P>
<P ></FONT><FONT face="Times New Roman"><FONT size=3>wri (CT S11 Z1)+(SAGF(12,1,0,((SD S12 Z1)+0.21)))-(SAGF(11,1,0,((SD S11 Z1)+0.21)))</FONT></FONT></P>
<P ><FONT face="Times New Roman"><FONT size=3>     0.600132</P>
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<P><FONT size=3><FONT face="Times New Roman"></FONT>限制条件<FONT face="Times New Roman">2</FONT>在光线有效径外预留约<st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="0.2" UnitName="mm"><FONT face="Times New Roman">0.2MM</FONT></st1:chmetcnv>的长度<FONT face="Times New Roman">,</FONT>并在小数点以下<FONT face="Times New Roman">2</FONT>位之后无条件进位(因为加工图的图面只标示至小数点以下第二位)
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<P><FONT face="Times New Roman"><FONT size=3>@edge==((CT s11 Z1)+(SAGF(12,1,0,((SD s12 Z1)-modf((SD s12 Z1),0.01)+0.21)))-(SAGF(11,1,0,((SD s11 Z1)-modf((SD s11 Z1),0.01)+0.21))))
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<P><FONT face="Times New Roman"><FONT size=3>@edge  0.6
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<P><FONT size=3>优化结果检验(如右下图)</FONT>
<P><FONT size=3><FONT face="Times New Roman">wri ((CT s11 Z1)+(SAGF(12,1,0,((SD s12 Z1)-modf((SD s12 Z1),0.01)+0.21)))-(SAGF(11,1,0,((SD s11 Z1)-modf((SD s11 Z1),0.01)+0.21))))</FONT></FONT>
<P><FONT size=3><FONT face="Times New Roman">     0.492663
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<p><img src="data/attachment/forum/dvbbs/2004-8/2004829225423867.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2004-8/2004829225423867.gif\');}" onmousewheel="return imgzoom(this);" alt="" />



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各位进行AUT时可成遇到这样的问题?

各位进行AUT时可成遇到这样的问题?

作者: redflag    时间: 2004-8-30 16:50
你的计算边厚的公式好像有点问题. 对球面是对的,对非球面不一定准确.可能要根据条件判断一下.
作者: victorrose    时间: 2004-8-31 06:38


版主您好,能否在说明更详尽些,因为实在不明白,谢谢




作者: nytang    时间: 2004-8-31 17:32


I believe your first equation is correct. But I could not understand why you want to write it as equation 2? The other question is that is it reasonable the calculation apears in the bracket after the pre-defined function?




作者: victorrose    时间: 2004-9-2 05:21


<FONT size=2><FONT face="Times New Roman"><P 0cm 0cm 0pt"><FONT size=2>再说明如下</FONT></P><P 0cm 0cm 0pt"><FONT size=2></FONT><FONT size=2>限制条件1是在光线有效径外的<st1:chmetcnv UnitName="mm" SourceValue="0.21" HasSpace="False" Negative="False" NumberType="1" TCSC="0" w:st="on">0.21MM</st1:chmetcnv>处作计算。<p></p></FONT></P><P 0cm 0cm 0pt"><FONT size=2>限制条件2是在光线有效径加<st1:chmetcnv UnitName="mm" SourceValue="0.2" HasSpace="False" Negative="False" NumberType="1" TCSC="0" w:st="on">0.20MM</st1:chmetcnv>后,小数点2位以下之后进位。<p></p><p></p></FONT></P><P 0cm 0cm 0pt"><FONT size=2>另外,此两限制条件无同时存在,先使用限制条件1。之后,将限制条件1删除,使用限制条件2。</FONT></P><P 0cm 0cm 0pt"></FONT></FONT></P>




作者: nytang    时间: 2004-9-3 17:16


<P>那你的公式應該改為modf((sd s11 z1), 100) 吧</P>




作者: victorrose    时间: 2004-9-4 16:46

command line

wri (modf(1.23456789,0.01)) 0.00456789 ==================================

wri (1.23456789-modf(1.23456789,0.01)) 1.23






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