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大神您好 我是在做巖土體開挖設置接觸元的時候出現(xiàn)了這樣的問題, 我在網(wǎng)上看到是說接觸對設置太多可能會出現(xiàn)這樣的情況,具體不清楚,地應力的計算都還可以 開挖之后就結果不好了 支護之后都不收斂了。下面是我具體出現(xiàn)的問題警告。請問需要怎么解決呢 *** WARNING *** CP = 206.375 TIME= 10:54:29 There are 74 small equation solver pivot terms. *** ERROR *** SUPPRESSED MESSAGE CP = 206.391 TIME= 10:54:29 The value of UX at node 126 is 2.681589959E+11. It is greater than the current limit of 1000000. This generally indicates rigid body motion as a result of an unconstrained model. Verify that your model is properly constrained. *** ERROR *** SUPPRESSED MESSAGE CP = 206.391 TIME= 10:54:29 *** MESSAGE CONTINUATION ---- DIAGNOSTIC INFORMATION *** If one or more parts of the model are held together only by contact verify that the contact surfaces are closed. You can check contact status in the SOLUTION module for the converged solutions using CNCHECK. *** ERROR *** SUPPRESSED MESSAGE CP = 206.406 TIME= 10:54:29 *** MESSAGE CONTINUATION ---- DIAGNOSTIC INFORMATION *** Rigid body motion can also occur when net section yielding has occurred resulting in large displacements for small increments of load or when buckling has occurred. You can plot the time history curve for node 126 in the UX direction to check for stiffness (slope of the curve) approaching zero. *** WARNING *** SUPPRESSED MESSAGE CP = 206.406 TIME= 10:54:29 The unconverged solution (identified as time 3.35 substep 999999) is output for analysis debug purposes. Results should not be used for any other purpose. |
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