弱弱的问一下一圆筒受内压,如何实加其他约束
圆筒两端开口,并且两端不受约束,如何使加其他约束?只加内压不加其他约束时,总是提示The value of UX at node 13074 is 7.019986278E+15.It is greater than
the current limit of 1000000.This generally indicates rigid body
motion as a result of an unconstrained model.Verify that your model
is properly constrained.
如果建立四分之一个模型只加对称约束
出现 *** ERROR *** CP = 250.422 TIME= 21:45:43
The value of UX at node 6211 is 3.99389806E+09.It is greater than the
current limit of 1000000.This generally indicates rigid body motion
as a result of an unconstrained model.Verify that your model is
properly constrained.
如果建立四分之一个模型加对称约束,并在轴向的 一个端面施加轴向约束,出现 *** ERROR *** CP = 306.266 TIME= 21:52:21
The value of UY at node 3684 is 1.466487897E+09.It is greater than
the current limit of 1000000.This generally indicates rigid body
motion as a result of an unconstrained model.Verify that your model
is properly constrained. 我感觉应该是沿压力方向位移无约束,垂直压力的两个方向需要施加位移约束 可以考虑在筒体中间面上施加位移 约束.但是如果仅仅施加内压应该不会出问题的.不知你是怎么建模型的. 圆筒两端开口,并且两端不受约束,如何使加其他约束?
两端不受约束肯定是不对的,轴向要加轴向位移约束。你最后一个方法是没有问题的:建立四分之一个模型,2个对称面加对称约束,并在一个端面施加轴向约束。 请问建立四分之一个模型必须把模型的对称轴设为y吗? 原帖由 jsp613 于 2007-10-9 14:44 发表 http://www.chinavib.com/forum/images/common/back.gif
请问建立四分之一个模型必须把模型的对称轴设为y吗?
no
页:
[1]