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标题: 有人玩过simdesigner for catia吗 [打印本页]

作者: microshift 时间: 2008-9-1 23:56
标题: 有人玩过simdesigner for catia吗
我在sd motion工作台里进行模型的动力学仿真，就算是一个很简单的机构，只要在两个part之间添加Body/Body Contact约束以后simulation的速度就会变得奇慢无比，算1帧要等很久很久，去掉Body/Body Contact约束以后倒是飞快，但是这样就没法模拟实体与实体的接触和碰撞了，这是什么问题啊？

我的平台是catia v5r17 + simdesigner

[attach]795876[/attach]

作者: microshift 时间: 2008-9-1 23:58
The Geometry Engine for Contacts is User-Written

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|                               Model Title                               |
|=============================================================================|
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****** Performing Dynamic Simulation using Gstiff Integrator ******

  Begin Simulation

The system is modelled with INDEX-3 DAEs.
The integrator is GSTIFF, CORRECTOR = original
Integration error = 1.000000E-03
Simulation    Step       Function Cumulative Integration
   Time       Size    Evaluations  Steps Taken Order
___________  ___________ ___________  ___________ _____
0.00000E+00  1.00000E-04          0          0    1
4.00000E-01  3.44984E-04       5122       1336    4
8.00000E-01  4.34622E-04       10368       2697    4
1.20000E+00  2.03271E-04       16068       4166    4
1.60000E+00  3.77543E-04       21775       5648    4
2.00000E+00  4.31744E-04       27436       7115    4

  End Simulation

Finished -----
Elapsed time = 1784.82s,  CPU time = 1700.41s,  95.27%

这是模拟完成以后的信息，6步居然用了快半个小时

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