24小时热门版块排行榜

返回列表

当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖

Bonnie2016

新虫 (小有名气)

应助: 2 (幼儿园)
金币: 70.5
红花: 1
帖子: 81
在线: 16.6小时
虫号: 2892177
注册: 2013-12-24
专业: 制造系统与自动化

[求助] 我用workbench做的静力学，出现一些错误不知道怎么解决已有2人参与

我用workbench做的静力学，large deflection  选择为 on，出现一些提示：
1、warning：Solver pivot warnings have been encountered during the solution.  This is usually a result of an ill conditioned matrix possibly due to unreasonable material properties, an under constrained model, or contact related issues.  Check results carefully.
2、warning：Large deformation effects are active which may have invalidated some of your applied supports such as displacement, cylindrical, frictionless, or compression only.  Refer to Troubleshooting in the Help System for more details.
3、warning：One or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution.  Refer to Troubleshooting in the Help System for more details.

在这个求解的过程中我打开了弱弹簧开关，所以第三个warning我可以不需要考虑。
第二个警告是不是说大变形会导致载荷、接触和约束等可能失效？我的模型就一个实体，没有接触，载荷是加载在面上，约束是加在单元节点上，第二个warning是不是也可以忽略？
第一个warning是说在指点求解的时候出现病态矩阵吗？我需要怎么而解决呢？

回复此楼