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楼主 |
发表于 2008-5-17 21:31:26
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$a=$yc;
$fax+$fbx+$fa1-$fa2=0;
$fr1+$fay+$fby+$ft2*cos($a)-$fr2*sin($a)=0;
$fbz+$faz-$ft1-($fr2*cos($a)+$ft2*sin($a))=0;
$ft1*$d1/2+($fr1*cos($a)+$ft2*sin($a))*sin($a)*$d2/2+($ft2*cos($a)-$fr2*sin($a))*cos($a)*$d1/2=0;
-$d2/2*cos($a)*$fa2-$fbz*$l+$ft1*$l1+($fr2*cos($a)+$ft2*sin($a))*($l-$l2)=0;
$fby*$l+$fr1*$l1+$fa1*$d1/2+$ft2*cos($a)*($l-$l2)-$fr2*sin($a)*($l-$l2)+$fa2*sin($a)*$d2/2=0;
如这样的求解 $fax,$fay,$faz,$fbx,$fby,$fbz 其他为已知 谢谢 |
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