贵刊1974年第5期发表陈祖源同志的“弹性摆的振动和阻尼问题”一文用能量方法解决摆的振动问题并指导了阻尼器的设计,是很有益的。但是正如该文所述,计算过程对“引入阻尼和干扰多少有些勉强”,因为阻尼和干扰使得系统变成非保守的了。为了消除这点,我们不用保守系统的欧拉方程,而根据普通形式 In your article, Issue 5, 1974, entitled “Vibration and Damping of Elastic Pendulums” by Comrade Chen Zuyuan, it is helpful to solve the vibration problem of the pendulum and guide the design of dampers by energy method. However, as described in this paper, the calculation is “somewhat reluctant” to introduce damping and disturbance because the damping and disturbance make the system nonconservative. In order to eliminate this, we do not need to keep the Euler equations of the system, but according to the ordinary form