关于ADAMS仿真---[图，求助]

weiliao · 发表于 2007-5-18 13:26:36

我用ADAMS做游梁式抽油机的仿真模型时，对驴头处的钢丝绳用连杆代替，并定义其与驴头的接触碰撞，但是仿真进行不下去了为什么啊？

报错及警告：

WARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   NOTE: The set of redundant constraints has changed at time = 0.0.
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

ERROR:   Abnormal termination encountered in ADAMS/Solver.
ERROR:      The simulation stopped at time = 0.0.

   The equations of motion can not be solved at this point because of a
   singularity in the Jacobian matrix. This singularity is due to the
   equation for PART pumping_unit.PART_39 ( PART/39 Xdot ).
ERROR:      The matrix is numerically singular.
WARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   NOTE: The set of redundant constraints has changed at time = 0.0.
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

ERROR:   Abnormal termination encountered in ADAMS/Solver.
ERROR:      The simulation stopped at time = 0.0.

   The equations of motion can not be solved at this point because of a
   singularity in the Jacobian matrix. This singularity is due to the
   equation for PART pumping_unit.PART_39 ( PART/39 Xdot ).
ERROR:      The matrix is numerically singular.
WARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   NOTE: The set of redundant constraints has changed at time = 0.0.
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

ERROR:   Abnormal termination encountered in ADAMS/Solver.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 3.85955E-03.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 3.87531E-03.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 3.87531E-03.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 2.9254.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 2.9255.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 2.9255.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 2.9255.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.4308.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.4308.
WARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   NOTE: The set of redundant constraints has changed at time = 4.4307.
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.4308.
WARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   NOTE: The set of redundant constraints has changed at time = 4.4307.
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.5731.
WARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   NOTE: The set of redundant constraints has changed at time = 4.5731.
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.5731.
WARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   NOTE: The set of redundant constraints has changed at time = 4.5731.
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.5731.
WARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   NOTE: The set of redundant constraints has changed at time = 4.5731.
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.6156.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.6156.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.6156.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.6251.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.6251.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.6251.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.8588.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.8588.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.8588.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.8724.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.8724.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 4.8724.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 5.0307.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 5.0307.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 5.0307.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 5.5871.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 6.1315.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 7.8049.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 7.8049.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 7.8049.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 7.8053.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 7.8053.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 7.8053.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 2.9254.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 2.9255.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 2.9255.
WARNING:    The symbolic refactorization failed. The matrix is structurally singular
   at time = 2.9255.

西西2517 · 发表于 2009-5-30 15:29:51

楼主解决了没呀，我也出现这问题了，高手帮帮忙

fynymq · 发表于 2010-5-13 09:19:05

我也想了解一下这个问题是怎么解决的呀！
我的是仿真过程中对一个物体施加接触实现的还比较可以，可是再添加另一个物体在仿真就出现这个问题了，

fynymq · 发表于 2010-5-13 09:26:06

我的错误代码是
WARNING: The symbolic refactorization failed. The matrix is structurally singular
at time = 9.01467E-02.
WARNING: ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
NOTE: The set of redundant constraints has changed at time = 9.01433E-02.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

ping21 · 发表于 2011-5-6 11:51:59

回复 fynymq 的帖子

我现在也遇到了你去年遇到的问题，请问你是怎么解决的，谢谢赐教！

linzhanchao · 发表于 2011-8-29 23:14:33

ping21 发表于 2011-5-6 11:51 $ I8 q' \( e4 A9 p( N2 ]
回复 fynymq 的帖子
" \/ W2 H( M, F" U$ y9 d R
1 ]8 ?3 H* X0 N9 R" [7 f我现在也遇到了你去年遇到的问题，请问你是怎么解决的，谢谢赐教！

兄弟我看他那处应该是柔性体，然后楼主用flexlink做成刚体，本身adams对这种仿真形式就不能很好支持。建议用有限元软件做成柔性体，导出mnf文件。而且你最好把你的模型贴上来，否则很难判断问题

曹伟.Ian · 发表于 2012-6-20 15:44:00

我也碰到这个问题了，没有高手解决吗，，，所有约束副加上就有问题，去一个就可以运行。。。

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