Studying the equation of motion of damped simple pendulum, the shock wave solution is found. The physical meaning of this solution is analyzed using the phase diagram of the pendulum.

• 摘要研究和分析有阻尼单摆的运动方程，应用近似法方程时发现存在冲击波解并精确求解。同时结合有阻尼单摆的相图分析冲击波解存在的物理意义。