有谁知道创建显示体约束的作用是什么么？

结构大当家

有谁知道创建显示体约束的作用是什么么？详细见《ABAQUS6.6基础教程与实例详解》中的198页9.1.6中所示············

AsAlways

You can create a display body constraint by selecting a part instance that will be displayed but will not be included in the analysis. You can constrain the display body to be fixed in space, or you can constrain it to follow selected nodes in the assembly. You can apply a display body constraint to an instance of an Abaqus native part or to an instance of an orphan mesh part.

AsAlways

What is a display body?


A display body is a part instance that is used for display only. None of the nodes or elements of the instance take part in the analysis, but they are still available during postprocessing. The motion of the display body is governed by the motion of the associated reference nodes, if any. It behaves like a rigid body since the relative positions of the nodes and elements of the part instance remain constant throughout a simulation. The nodes and elements of the part instance cannot be used to define prescribed conditions, interactions, constraints, etc. Section properties do not have to be assigned to the elements.

A display body is useful in cases where the physical model is different from the idealized model used for the analysis. An idealized model may be difficult to visualize; it may help to include more details in the model for realistic postprocessing purposes. Display bodies allow this without increasing the analysis time.

Display bodies are especially useful in mechanism or multibody dynamics problems where rigid parts interact with each other via connectors. In such cases a part can be represented by a very simple rigid body and a more complex display body. In this case, the rigid body can be as simple as just a node, along with mass and rotary inertia elements attached to that node.

Display bodies can also be used to model stationary objects that are not involved in the analysis but aid in visualization.

结构大当家

AsAlways 发表于 2012-10-25 14:04
What is a display body?

谢谢！请问这个是在帮助中找到的么?

AsAlways

结构大当家 发表于 2012-10-25 14:54
谢谢！请问这个是在帮助中找到的么?

不客气，是在帮助文档中找的，利用上下文寻找的那个小问号找得特别快，一点就行了，根本不用搜索的。

结构大当家

AsAlways 发表于 2012-10-25 14:59
不客气，是在帮助文档中找的，利用上下文寻找的那个小问号找得特别快，一点就行了，根本不用搜索的。 ...

上下文寻找的那个小问号?我没有看到额  能截个图么？
找到了 3Q

mutong

那位大神，能说一下具体用到哪些分析约束中吗。
举个实例