快速巧解材料力学静定梁的约束力及剪力弯矩图

摘要

材料力学是高等院校工科必修的一门专业基础课。在机械、土木、采矿等领域有着广泛的应用。本文以数学、理论力学为基础，总结出求约束力的“四大原理”以及剪力弯矩图画法的“三看一算”口诀，并形成规律，避免了繁琐的平衡方程，在工程及教学应用上的运算速度都得到了提高。%Materials mechanics is a required professional basic course for engineering colleges and universities, and it has been widely used to mechanical, civil, mining and other fields. Based on mathematics and theoretical mechanics, this paper summarizes"four principles"for solving the binding force as well as the "three seeing and one calculating" formula for drawing shear bending moment diagram, forming the law, avoiding the tedious balance equation, and the improving the operation speed in engineering and teaching application.