找回密码
 注册
Simdroid-非首页
查看: 260|回复: 2

[其他] marc退出号2004 求助

[复制链接]
发表于 2013-9-13 10:28:46 | 显示全部楼层 |阅读模式 来自 北京
计算一热力耦合模型,有接触,计算过程中出现退出号2004, The determinant of the stiffness matrix becomes zero or
             negative when indicated node has been reached during the
             Gaussian elimination phase of the solution process. This
             means that the stiffness matrix is non-positive definite.
             If this happens at the start of the analysis, the condition
             is usually caused by the existence of rigid body modes.  It
             may also be caused by incorrect material properties (e.g.
             Poisson's ratio greater than 0.5; note that such situations
             may arise through temperature dependence of properties). In
             nonlinear cases, the structure may have buckled or reached a
             plastic limit load. In rubber analysis, it may also be due
             to the strain state being in a region where the input data
             for the strain energy function is invalid. In contact
             analysis with friction, lack of normal forces may result in
             friction being absent. If desired, the program may be forced
             to continue by use of the parameter PRINT or the model or
             history definition option CONTROL.
Either one of these
             procedures may be used for restart. Whenever a non-positive
             definite situation occurs one must exercise caution, as the
             resultant numerical solution may be infeasible.
请问下如果我想让他继续运行,PRINT参数怎么设置
            
发表于 2017-11-15 10:55:38 | 显示全部楼层 来自 甘肃兰州
Simdroid开发平台
请问解决了吗,我也出现这个问题
回复 不支持

使用道具 举报

发表于 2019-4-9 23:16:24 | 显示全部楼层 来自 江苏
将分析工况里的非正定,不收敛继续计算勾选中,应该可以在提交任务后不出现2004错误
回复 不支持

使用道具 举报

您需要登录后才可以回帖 登录 | 注册

本版积分规则

Archiver|小黑屋|联系我们|仿真互动网 ( 京ICP备15048925号-7 )

GMT+8, 2024-4-25 15:13 , Processed in 0.029946 second(s), 12 queries , Gzip On, MemCache On.

Powered by Discuz! X3.5 Licensed

© 2001-2024 Discuz! Team.

快速回复 返回顶部 返回列表