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用optistruct做分析時候出現(xiàn)的警告，然后再hyperview看不到效果圖是怎么回事
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Messages for the job:
*** WARNING # 312
In static load case 1
the compliance is negative or large 5.968586E+10
Optimization/buckling analysis cannot be performed
due to possible rigid body mode
*** WARNING # 312
In static load case 2
the compliance is negative or large 1.658063E+13
Optimization/buckling analysis cannot be performed
due to possible rigid body mode
*** WARNING # 312
In static load case 5
the compliance is negative or large 1.664343E+13
Optimization/buckling analysis cannot be performed
due to possible rigid body mode
ANALYSIS COMPLETED.
*** WARNING # 312
In static load case 1
the compliance is negative or large 5.968586E+10
Optimization/buckling analysis cannot be performed
due to possible rigid body mode
*** WARNING # 312
In static load case 2
the compliance is negative or large 1.658063E+13
Optimization/buckling analysis cannot be performed
due to possible rigid body mode
*** WARNING # 312
In static load case 5
the compliance is negative or large 1.664343E+13
Optimization/buckling analysis cannot be performed
due to possible rigid body mode
ANALYSIS COMPLETED.
約束問題，比如剛性連接出錯，節(jié)點沒選上等等