组合滑轮上绳索张力计算及滑轮转动分析

Calculation of the tension at a cord on the combined pulley and analysis of pulley’s rotation

着重推导了组合滑轮上绳索张力公式,并进一步分析了滑轮转动机理,模型简化条件等问题,同时指出了一个常见的组合滑轮转动问题中简化条件的错误.

This paper deduces tension formula of cord on combined pulley and analyses rotational reason of the pulley.It also analyses simpliding con- ditions of the model and pointes out the mistake about simpliding con- ditions of rotational problem of combined pulley.