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Mpc

设置线面接触，MPC算法，应该可以得到你想要的结果

共节点，刚性链接，柔性链接，mpc算法、梁、杆都可以

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5楼: Originally posted by klzg77541812 at 2019-09-17 08:42:51
设置线面接触，MPC算法，应该可以得到你想要的结果

我会使用MPC算法，但我不知道MPC算法的原理，所以我怕老师无法判定我的结果是对的。

话说MPC算法的实际意义究竟是啥 ，看了ANSYS手册没看懂。

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6楼: Originally posted by ftc_简单 at 2019-09-18 13:55:15
共节点，刚性链接，柔性链接，mpc算法、梁、杆都可以

请问MPC算法的实质究竟是什么呢？像TARGE170单元KEYOPT(5)的选项，分别代表什么含义呢？ANSYS手册中的英文翻译成中文了也没看懂呀

TARGE170

KEYOPT(5)
DOF set to be used in internally-generated multipoint constraints (MPCs), with the MPC algorithm and no separation or bonded behavior (KEYOPT(2) = 2 and KEYOPT(12) = 4, 5, or 6 on the contact element). Note that this key option is not used for surface-based constraints. (See Multipoint Constraints and Assemblies in the Contact Technology Guide for more information):
0 --
Automatic constraint type detection (default)
1 --
Solid-solid constraint (no rotational DOFs are constrained)
2 --
Shell-shell constraint (both translational and rotational DOFs are constrained independently). Also used with penalty based shell-shell assembly (KEYOPT(2) = 0 or 1 and KEYOPT(12) = 5 or 6 on the contact element); see Bonded Contact for Shell-Shell Assemblies in the Contact Technology Guide for more information.
3 --
Shell-solid constraint - contact normal direction (both translational and rotational DOFs from the contact surface are included in the constraint set; only translational DOFs from the target surface are included in the constraint set).
壳实体约束-接触法向（约束集中包括接触曲面的平移和旋转自由度；约束集中仅包括目标曲面的平移自由度）。
4 --
Shell-solid constraint - all directions. This option acts the same as KEYOPT(5) = 3 if an intersection is found from the contact normal to the target surface. Otherwise, constraint equations are still built as long as contact node(s) and target segments are inside the pinball region.

壳实体约束-所有方向。此选项的作用与keyopt（5）=3相同，前提是发现从接触法向目标曲面的交点。否则，只要接触节点和目标段位于弹球区域内，就仍然会建立约束方程。
5 --
Shell-solid constraint - anywhere inside pinball region. Constraint equations are always built as long as contact node(s) and target segments are inside the pinball region, regardless of whether an intersection exists between the contact normal and the target surface.
壳实体约束-弹球区域内的任何位置。只要接触节点和目标段位于弹球区域内，无论接触法线和目标曲面之间是否存在交点，都会建立约束方程
，