mechanica中对称约束怎么设置

hjian_wang

mechanica的位移约束中 对称约束如何设置？

iampopdeng

help中对称约束说明：
Symmetry Constraints
Use the Insert>Symmetry Constraint command in the Structure or Thermal module of native mode to create a cyclic or mirror symmetry constraint. This command is not available in FEM mode. When you select this command, the Symmetry Constraint dialog box appears with these items:

Name — The name of the constraint.

Member of Set — The name of the constraint set (in Structure) or boundary condition set (in Thermal). You can select an existing set from the drop-down list, or create a new set by clicking New to display the Constraint Sets dialog box.

Type — Select one of the following constraint types. The dialog box changes depending upon your selection:

Cyclic

Mirror (Structure only)

References — For mirror constraints, you can select points, vertices, curves, edges, or surfaces to define the plane of symmetry.

For cyclic constraints, you must make the following selections:

First Side — Define the first side of the cut section.

Second Side — Define the second side of the cut section.

Axis — Select the axis of symmetry. Axis is inactive if the software automatically determines the axis of symmetry.

A constraint set can include cyclic and mirror symmetry constraints, with these limitations:

The constraint set can include only one cyclic symmetry constraint.

The plane defining a mirror symmetry constraint must be orthogonal to the symmetry axis for a cyclic symmetry constraint.

You cannot use the same geometrical entity as a reference for a cyclic symmetry constraint and any other constraint.

wlq515697859

怎么全英文的?

zhl19

先把零件切成你要分析的样子，选好对称面就可以了，要是旋转的要选两个面。