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发表于 2008-5-13 12:39:27
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来自 江苏南京
我在计算隧道开挖对临近桩基影响的模拟中,出现了这样的错误(先后出现了两次,我点了继续):
L-2 norm of residual force overflow ,this may be caused by PRED,ON and birth/dead elements,please use PRED,off and try again。
然后又出现了错误:
one or more elements have become highly distorted .Excessive distortion of elements is usually a symptom indicating the need for corrective action elsewhere. Try incrementing the load more slowly (increase the number of substeps or decrease the time step size).you may need to improve your mesh to obtain elements with better aspect ratios .Also consider the behavior of materials,contact pairs ,and/or constraint equations.If this message appears in the first iterationof first substep,be sure to perform element shape checking 。
后,计算终止。不知道怎么解决,请指教。 |
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