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关于tie Rigid bodyDisplay bodyCouplingMPC constraint

A tie constraint allows you to fuse together two regions even though the meshes created on the surfaces of the regions may be dissimilar.

"A tie constraint"可以使两个区域熔合在一起,即使他们表面的网格化分并不相似

A rigid body constraint allows you to constrain the motion of regions of the assembly to the motion of a reference point.

"A rigid body constraint "可以使一个区域的移动与一个参考点绑定在一起

A display body constraint allows you to select a part instance that will be used for display only.

"A display body constraint "可以使得一个构件实体只用于显示而已

A coup ling constraint allows you to constrain the motion of a surface to the motion of a single point.

"A coup ling constraint "可以使得一个面的移动与一个单独的点绑定

An MPC constraint allows you to constrain the motion of the slave nodes of a region to the motion of a single point.

"An MPC constraint "可以使得一个区域的从属点的移动与一个单独点绑定

A shell-to-solid coup ling constraint allows you to coup le the motion of a shell edge to the motion of an adjacent solid face.

"A shell-to-solid coup ling constraint "可以使得一个壳的边缘与一个相邻实体的面绑定在一起

An embedded region constraint allows you to embed a region of the model within a “host” region of the model or within the whole model.

"An embedded region constraint "可以使得将模型的一个区域埋入一个"主"区域或者整个模型

以上只是对document的直接翻译!但是并不是太理解.能否有资料能详细解释下?尤其是tie/coup ling/embed ,能否形象描述下?帮助理解

TIE绑定约束是在模型的初始状态中定义,整个分析过程都不会改变,couple耦合约束是让一个控制点和被约束区域之间建立运动上的约束关系,他们的最大区别感觉是耦合约束可以只选择一部分自由度参与约束点的移动,而绑定约束则不能。