平行轴定理计算正方形框架转动惯量的讨论

Discussion on using parallel axis theorem to calculate the rotational inertia of square frame

恰当使用平行轴定理,能简化刚体对定轴转动惯量的计算.本文通过深刻剖析正方形框架的转动惯量的计算过程,阐明平行轴定理的使用条件,并介绍推广后的平行轴定理.

Using parallel axis theorem properly can simplify the calculation of rotational inertia.In this paper,we illustrate the application condition of the theorem through analyzing the calculation of the rotational inertia of square frame.We also introduce the extension of the theorem.