自行车急刹车时翻车现象的力学分析

The mechanical analysis of braking bicycle's overturned phenomenon

本文基于工程力学中运动学和力学分析的基本理论,通过对自行车翻车现象进行合理的分类,利用达朗伯原理建立平衡方程,对平直路面上行驶的自行车在突遇急刹车时出现的翻车现象进行理论分析,依据分析结果对自行车翻车的发生机理进行合理的解释,从而为进一步的实践提供了理论指导。

Based on the basic theory of kinematics and dynamics analysis in engineering mechanics,the paper classifies bicycle's overturned phenomenon reasonably,and establishes the equilibrium equations with d'alembert principle,in order to carry on the theoretical analysis of bicycle's overturned phenomenon.According to the analysis result,the paper carries on the reasonable explanation for the occurring mechanism of bicycle's overturned phenomenon,thus provides theoretical guidance to the practice.