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关于ADAMS仿真---[图,求助]

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发表于 2007-5-18 13:26:36 | 显示全部楼层 |阅读模式

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?

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报错及警告:

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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.

驴头处钢丝绳.BMP
虚拟机全貌.BMP
驴头处钢丝绳定义.BMP
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发表于 2009-5-30 15:29:51 | 显示全部楼层
楼主解决了没呀,我也出现这问题了,高手帮帮忙
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发表于 2010-5-13 09:19:05 | 显示全部楼层
我也想了解一下这个问题是怎么解决的呀!$ R7 c5 w. O" g' H
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,
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发表于 2010-5-13 09:26:06 | 显示全部楼层
我的错误代码是8 E7 y) o+ K3 G1 N# ~$ B
WARNING:    The symbolic refactorization failed.  The matrix is structurally singular) p( @* F" {( f4 _( B
   at time = 9.01467E-02.
( z* ]; w0 H) `; }" Z0 i% t, R/ MWARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++% }+ S7 B& A' e! @0 k; N
   NOTE:  The set of redundant constraints has changed at time = 9.01433E-02.# E/ ]) U! }! x; m7 \: ^/ O& y  w
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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发表于 2011-5-6 11:51:59 | 显示全部楼层
回复 fynymq 的帖子$ X8 @# e* w" S" {( Y

5 r, l0 _" Y8 W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!
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发表于 2011-8-29 23:14:33 | 显示全部楼层
ping21 发表于 2011-5-6 11:51
; b7 M! T/ u1 L& i' l; ^回复 fynymq 的帖子
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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!
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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9 _- E4 S. @# j- W6 L
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发表于 2012-6-20 15:44:00 | 显示全部楼层
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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