關于ADAMS仿真---[圖，求助]

weiliao

我用ADAMS做游梁式抽油機的仿真模型時，對驢頭處的鋼絲繩用連桿代替，并定義其與驢頭的接觸碰撞，但是仿真進行不下去了為什么啊？

 

" d6 t9 g9 \5 ~/ m2 m( j ?8 o/ K

報錯及警告：

( S5 ~( W" y9 P, ?, ]% X& Z; c

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

樓主解決了沒呀，我也出現這問題了，高手幫幫忙

fynymq

我也想了解一下這個問題是怎么解決的呀！
% s1 d4 H5 g5 Y3 ?我的是仿真過程中對一個物體施加接觸實現的還比較可以，可是再添加另一個物體在仿真就出現這個問題了，

fynymq

我的錯誤代碼是
0 J# A( X2 N9 h9 n' ]WARNING:    The symbolic refactorization failed.  The matrix is structurally singular
   at time = 9.01467E-02.
7 o+ t1 x  H5 N+ v( {, I' sWARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   NOTE:  The set of redundant constraints has changed at time = 9.01433E-02.
   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

ping21

回復 fynymq 的帖子
4 n5 s+ d* V  _0 `% y4 W9 }% E
  V4 Z1 O) E% r5 u我現在也遇到了你去年遇到的問題，請問你是怎么解決的，謝謝賜教！

linzhanchao

ping21 發表于 2011-5-6 11:51
& x, B3 H3 V' Z; f) M回復 fynymq 的帖子

我現在也遇到了你去年遇到的問題，請問你是怎么解決的，謝謝賜教！

  K* @: h; c1 M7 e: G  `6 }$ b兄弟 我看他那處應該是柔性體，然后樓主用flexlink做成剛體，本身adams對這種仿真形式就不能很好支持。建議用有限元軟件做成柔性體，導出mnf文件。而且你最好把你的模型貼上來，否則很難判斷問題

曹偉.Ian

我也碰到這個問題了，沒有高手解決嗎，，，所有約束副加上就有問題，去一個就可以運行。。。