# 3.6.5: 反作用力 (Reaction Forces) 🔷

![图3.6.5.1：在轴向和横向点荷载下的梁：两种荷载工况下的反作用力和力矩。](/files/-M9XuUxdzXeEp6CGMc3K)

**“Reaction Forces（反作用力）”**运算器允许用户访问支撑件上的反作用力和力矩。可将模型接入其输入端口处，并通过**“RF”**和**“RM”**反馈一个列表，该列表包含以kN为单位的反作用力和以$$kN m$$为单位的反作用力矩，作为的三维矢量。**“LCase”** 输入端口设置了需要输出结果的荷载工况指数。所有支持反应的排序方式是它们所连接的节点索引形成一个升序。在局部支撑情况下，反作用力是指局部坐标系。**“Pos（位置）”**以与结果相同的顺序反馈支撑件的位置。**“SumRF”**和**“SumRM”**提供了检查每个荷载工况的合成反作用力矩和作用力的可能性。


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