weiliao 发表于 2007-5-18 13:26:36

关于ADAMS仿真---[图，求助]

<P>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？ </P>
<P>&nbsp;</P>
<P>报错及警告：</P>
<P>WARNING:&nbsp;&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp;&nbsp; NOTE:&nbsp; The set of redundant constraints has changed at time = 0.0.<BR>&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp; <BR>ERROR:&nbsp;&nbsp; Abnormal termination encountered in ADAMS/Solver.<BR>ERROR:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The simulation stopped at time = 0.0.<BR>&nbsp; <BR>&nbsp;&nbsp; The equations of motion can not be solved at this point because of a<BR>&nbsp;&nbsp; singularity in the Jacobian matrix.&nbsp; This singularity is due to the<BR>&nbsp;&nbsp; equation for PART pumping_unit.PART_39 ( PART/39 Xdot ).<BR>ERROR:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The matrix is numerically singular.<BR>WARNING:&nbsp;&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp;&nbsp; NOTE:&nbsp; The set of redundant constraints has changed at time = 0.0.<BR>&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp; <BR>ERROR:&nbsp;&nbsp; Abnormal termination encountered in ADAMS/Solver.<BR>ERROR:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The simulation stopped at time = 0.0.<BR>&nbsp; <BR>&nbsp;&nbsp; The equations of motion can not be solved at this point because of a<BR>&nbsp;&nbsp; singularity in the Jacobian matrix.&nbsp; This singularity is due to the<BR>&nbsp;&nbsp; equation for PART pumping_unit.PART_39 ( PART/39 Xdot ).<BR>ERROR:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The matrix is numerically singular.<BR>WARNING:&nbsp;&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp;&nbsp; NOTE:&nbsp; The set of redundant constraints has changed at time = 0.0.<BR>&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp; <BR>ERROR:&nbsp;&nbsp; Abnormal termination encountered in ADAMS/Solver.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 3.85955E-03.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 3.87531E-03.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 3.87531E-03.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 2.9254.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 2.9255.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 2.9255.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 2.9255.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.4308.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.4308.<BR>WARNING:&nbsp;&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp;&nbsp; NOTE:&nbsp; The set of redundant constraints has changed at time = 4.4307.<BR>&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp; <BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.4308.<BR>WARNING:&nbsp;&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp;&nbsp; NOTE:&nbsp; The set of redundant constraints has changed at time = 4.4307.<BR>&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp; <BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.5731.<BR>WARNING:&nbsp;&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp;&nbsp; NOTE:&nbsp; The set of redundant constraints has changed at time = 4.5731.<BR>&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp; <BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.5731.<BR>WARNING:&nbsp;&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp;&nbsp; NOTE:&nbsp; The set of redundant constraints has changed at time = 4.5731.<BR>&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp; <BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.5731.<BR>WARNING:&nbsp;&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp;&nbsp; NOTE:&nbsp; The set of redundant constraints has changed at time = 4.5731.<BR>&nbsp;&nbsp; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<BR>&nbsp; <BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.6156.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.6156.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.6156.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.6251.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.6251.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.6251.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.8588.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.8588.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.8588.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.8724.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.8724.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 4.8724.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 5.0307.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 5.0307.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 5.0307.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 5.5871.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 6.1315.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 7.8049.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 7.8049.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 7.8049.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 7.8053.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 7.8053.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 7.8053.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 2.9254.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 2.9255.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 2.9255.<BR>WARNING:&nbsp;&nbsp;&nbsp; The symbolic refactorization failed.&nbsp; The matrix is structurally singular<BR>&nbsp;&nbsp; at time = 2.9255.</P>

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:handshake

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 static/image/common/back.gif
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！

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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