摘要
本文用LP法(变形参数法)求得物理摆的周期公式,与精确解的椭园积分相比较,运算简便,而且结果数值甚为接近,在起始角0°～90°范围内,相对误差均小于1％,最后给出计算实例。
For Computing period of physical pendulum vibration, in this paper, theformula by L.P. method (method of strained parameter) has been found withaccuracy up to relative error of 1% in range of initial angle 0°～90°, nearthat calculated by accurate elliptical integral, but more simply and conveni-ently,and finally a Calculating example is given.
关键词
摄动法
变形参数法
振动周期
method of s trained parameter
physical pendulum
perturbation method.
