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1.This solver engine was unable to coverage on a solution for the nonlinear problem as constrained.
2.Detected initial penetration/ gap is relatively large for certain
contact pairs. This may produce inaccurate results for bonded and no
separation contacts using formulation other than MPC. This large
penetration/ gap can be indentified by generating the initial contact
results.
3. At least one body has been found to have only 1 element in at least 2
directions along with reduced integration. This situation can lead to
invalid results. consider changing to full integration element control
or meshing with more elements.
4. The uncoveraged solution(identified as substep 999999) is output for
analysis debug purposes. Results at this time should not be used for any
other purpose.
5. one or more contact regions may not be in initial contact. check results carefully
6. contact status has experienced an abrupt change. check results carefully for possible contact seperation
7. one or more bodies may be underconstrained and experiencing rigid
body motion. weak springs have been added to attain a solution.
8. copying the source mesh to the target face failed because of the poor
quality. please review your surface mesh, review the mesh, and set or
adjust size controls to help the sweeper generate higher quality source
and target surface meshes. after you are satisfied please generate the
volume mesh again.
1,說你計算是由非線性問題導(dǎo)致不收斂
2,,說你接觸對有大的間隙問題,,不曉得你用什么接觸,但下面這四個地方值得你借鑒:
3,,說你網(wǎng)格有問題,,仔細(xì)劃分一下網(wǎng)格吧,接觸面上的網(wǎng)格大小要盡量一致,,用size控制一下邊啊,,面啊、體啊啥的,,最好用六面體網(wǎng)格(可用multizone方法),。
4,建議你用通過增加時間步來計算
5,,說你有些地方?jīng)]有設(shè)置接觸,,自動接觸可能有漏,建議你檢查一下
6,,還是說你接觸有問題
7,,說你約束有問題,靜態(tài)計算時,,有物體移動,。建議weak springs 設(shè)置成自動,檢查一下約束,,能保證物體在加載過程中沒有大的移動
8,,說你網(wǎng)格劃分有問題 |
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