51问答网 > 在力学中弯矩是怎么定义的

在力学中弯矩是怎么定义的

它的计算公式是什么
2025-03-15 03:06:12
推荐回答（1个）
回答1：

弯矩是杆件的端部力乘以作用长度,比如说一个悬壁梁,当梁端力为2N,梁长为3M,刚固端弯矩为-6KN.M,而梁的跨中弯矩为-3KN.M,按这个主法可以简单算,不过更深的算法要见《材料力学》了，正负是上部受拉为负，下部受拉为正。
m就是弯矩作用，v就是剪力作用，n就是轴力作用

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