旋转矢量法求解简谐振动初相位

The Rotation Vector Method to Solve Harmonic Vibration Phase

简谐振动的运动学方程中包含振幅、角频率、初相位三个要素,而在这三个要素中,初相位的求解相对来说比较麻烦,一般情况下都是采用公式法来求解初相位,但这种方法求解过程相当麻烦并容易出错,在该文中介绍使用旋转矢量法来求解初相位的方法,使用该方法来求解初相位则显得相当简洁,运算量也相当小。

Contains the three elements of the amplitude, frequency, phase angle kinematics equation of simple harmonic vibration, and in these three elements, solving the initial phase of relatively trouble, under normal circumstances are the formula to solve the initial phase,but this method in solving process cumbersome and prone to error, in this paper describes the use of rotation vector method to seek solution of initial phase, the method is used to solve the initial phase is very simple, the operation is also quite small.