初始条件对阻尼振动的影响

EFFECT OF INITIAL CONDITION ON DAMPED ASILLATION

阻尼振动表达式为x=A_0e^(-βt)cos(wt+α),本文讨论如何由初始条件决定积分常数A_0和α,并指出初始条件是由外因提供的。

Damped ascillation is usually expressed as x=A_0e^(-βt) cos(wt+α)A_0,and α are integration constants.This article discusses how to detmine the integation contants from initial conditions which provided by external causes.