标题: 仿真到一定位置时出现以下的错误 [打印本页] 作者: fujinhai 时间: 2009-10-10 17:02 标题: 仿真到一定位置时出现以下的错误 我做的是一个螺旋副的机器人，在刚开始运动时没有问题，但是当螺母运动到一定位置时就出现以下问题，这个问题是怎么引起的呢。希望有做这方面的一起交流。
WARNING: The symbolic refactorization failed. The matrix is structurally singular
at time = 0.40088.
WARNING: After 50 iterations of the calculations for the initial conditions, the
mechanism has been assembled with a maximum-magnitude error of 16.869
which does not satisfy the specified tolerance of 1.0E-10 .
WARNING: The symbolic refactorization failed. The matrix is structurally singular
at time = 0.40088.
WARNING: After 50 iterations of the calculations for the initial conditions, the
mechanism has been assembled with a maximum-magnitude error of 16.869
which does not satisfy the specified tolerance of 1.0E-10 .
WARNING: The symbolic refactorization failed. The matrix is structurally singular
at time = 0.40088.
WARNING: ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
NOTE: The set of redundant constraints has changed at time = 0.40088.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++作者: fujinhai 时间: 2009-10-11 20:59
谁能解答以下。两个不相关联的万向节。为什么不能同时加上。非得去掉一个才行。都加上就会出现上面的问题。