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?
% k5 I* M& s9 n5 y
' \7 z/ q R$ V3 X! j报错及警告: - j) M' P# P/ W# R) A* G5 V9 p9 U
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. |