在多柔体动力学仿真中，出现这种错误是因为什么

rongeryang

错误信息如下：
ERROR:    The Initial Conditions displacement solution failed to converge.
Adams/Solver could not determine the assembled position configuration of the model.

Possible Causes and Suggested Course of Action:
Check for redundant constraints, and if any present try to eliminate as many as possible.
Check to see that the motion functions are consistent with other
aspects of the current model position.
Check to see if joints are inconsistent (contradictory); eliminate them if so.
Check to see if parts are not too distant from an assembled configuration.

ERROR:   Simulation failure detected.
ERROR:   Simulation failure detected.
这是什么原因造成的呀？难道是我的mnf文件有错误还是在ADAMS中约束没加对？

rongeryang

我做的是一个蜗轮蜗杆的柔体仿真，蜗杆是柔性体，蜗轮还有其他零件是刚体，mnf在ANSYS中得到，看到其他的例子，一个空心的圆柱在导出mnf文件时，在圆柱的中心空心处建一个关键点，然后mesh，那我的这个蜗杆的外部连接点应该是建在哪？是在蜗杆轴与轴承配合处轴中心和轮齿中心处吗？求助啊