jjluo 发表于 2013-5-18 19:26:30

HkJnt是哪个约束，请教下---整车仿真问题

---- START: ERROR ----
   Time T=2.331000015E+01.
   Adams can not solve the equations of motion because the mechanism has
   "locked up".At least one constraint can no longer be satisfied.
   Adams is unable to satisfy the constraint for:HkJnt/39 X Delta.

模型按模板建的，就是不知道过约束、少约束、约束错误对模型的影响.现在虽有错误，但是还能运动的，就是运动轨迹在后期不正常

myh051305 发表于 2013-5-18 22:06:53

过约束了吧

jjluo 发表于 2013-5-18 23:16:02

下面是另外一个模型的问题，也请指导下到底哪里出了问题

1. Decrease the value of HMIN.                                                
2. Relax the accuracy requirements (ERROR) on the integrator.                                                
3. Increase the number of iterations allowed for convergence.                                                
4. Revisit the way the mechanical system has been modeled.                                               
Last good step-size: 1.626084043E-07.                                               

jjluo 发表于 2013-5-18 23:44:49

myh051305 发表于 2013-5-18 22:06 static/image/common/back.gif
过约束了吧
我发现有个链接确实过了，但是删除了 ，又有问题，
如下，请教下：
      1.Use the MAXIT argument on the EQUILIBRIUM, IC, KINEMATICS,
         or INTEGRATOR command to increase the maximum number of
         iterations.
       2.Temporarily change the value of the PATTERN argument on the
         EQUILIBRIUM, IC, KINEMATICS, or INTEGRATOR command to
         PATTERN = T.
       3.Temporarily increase the value of the ERROR argument on the
         EQUILIBRIUM, IC, KINEMATICS, or INTEGRATOR command at
         time = 27.781 .
       4.If one or more forces change rapidly or sharply near
         time = 27.781, modify the force or forces.
---- ERROR ----
   SIMULATE command failed for minimaneuver: STEADY_STATE
   Aborting Execution.

逆鳞1989 发表于 2014-9-30 14:35:23

楼主怎么解决的额
页: [1]
查看完整版本: HkJnt是哪个约束，请教下---整车仿真问题