機械社區(qū)

標題: 關于ADAMS仿真---[圖，求助] [打印本頁]
作者: weiliao    時間: 2007-5-18 13:26
標題: 關于ADAMS仿真---[圖，求助]

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？

+ v) S/ s! l% Z% @' U

 

% [6 @2 ~# ? n3 w6 }2 n6 g" N

報錯及警告：

6 r6 Q: _1 I9 D. d4 n% J. x

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.

作者: 西西2517    時間: 2009-5-30 15:29
樓主解決了沒呀，我也出現(xiàn)這問題了，高手幫幫忙
作者: fynymq    時間: 2010-5-13 09:19
我也想了解一下這個問題是怎么解決的呀！
5 \) W" w5 ~) Y* g& x# F我的是仿真過程中對一個物體施加接觸實現(xiàn)的還比較可以，可是再添加另一個物體在仿真就出現(xiàn)這個問題了，
作者: fynymq    時間: 2010-5-13 09:26
我的錯誤代碼是3 z' M( R5 K/ D  P3 j( G
WARNING:    The symbolic refactorization failed.  The matrix is structurally singular1 h6 ^" d  x5 q* S7 T3 Y3 y
   at time = 9.01467E-02.+ H% q1 {6 X0 U9 w# f
WARNING:    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
$ S% q& A' L: i1 L6 n   NOTE:  The set of redundant constraints has changed at time = 9.01433E-02.
( @( S, H* F6 q0 Z; N/ N   ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
作者: ping21    時間: 2011-5-6 11:51
回復 fynymq 的帖子" n) e" O) Z& n# j; }8 C, L

3 I; W9 s; y! u1 ^9 r0 f+ O我現(xiàn)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！
作者: linzhanchao    時間: 2011-8-29 23:14
ping21 發(fā)表于 2011-5-6 11:51
, c7 c) ]# Z& [/ w' d/ |1 o回復 fynymq 的帖子( t. d- J- L; I+ e( D/ W
) b2 v' h2 b! j3 U. j: M! f, _
我現(xiàn)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！
0 \6 c* R. L7 M0 ]. ^+ r8 j2 V
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
. W9 L$ p" j3 {& N
作者: 曹偉.Ian    時間: 2012-6-20 15:44
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。。。



歡迎光臨 機械社區(qū) (http://e-learninguniversity.com/) Powered by Discuz! X3.4