机械波的研究对象是大量的质点,这和一般动力学问题的研究对象(单体或系统)不同.波的传播在时间上具有周期性,在空间上具有双向性、周期性,这决定了波动问题有多解.如何避免出现漏解呢?本文向大家介绍一种好方法:辅助横波法. 所谓辅助横波法,是在解决波的多解问题时先画出一列横波,把波的各种可能的情况在这列波中表示出来,再求出各种可能的解. The research object of the mechanical wave is a large number of particles, which is different from the research object (monomer or system) of the general dynamic problem. Wave propagation is periodic in time, bidirectional and periodic in space, which determines the fluctuation There are many solutions to the problem. How to avoid leaks? This article will introduce a good method: Auxiliary shear wave method. The so-called assisted shear wave method is to draw a row of shear waves and solve various problems of the wave. The possible situation is expressed in this list of waves, and then all possible solutions are found.