类比法与简谐运动

Analogy in Harmonic Motions

本文以力学和电磁学中的简谐运动及受驱动的有阻尼的非线性振子的运动为例。说明如何通过类比，认识事物的本质和共性，以达到触类旁通的目的。

The importance of grasping the essentials and the general charactors by analogy to attain understanding the whole category on the study of physics is discussed with the example of harmonic motions and the motions of driven damping nonlinear oscillators in mechanics and electromgnetism.