摘要
利用逼近法求解了对称非线性振动的杜芬方程,得出无阻尼和有阻尼情况下的幅频特性,结果表明由于非线性恢复力的影响,导致系统振动的非线性效应。
Duffing equation of the symmetric nonlinear vibration was dissussed by using approximate method. The characteristics of swing and frequency with damped and non-demped were given. The results show that a nonlinear effect of the system vibration is caused by the nonlinear coefficients.
出处
《宝鸡文理学院学报（自然科学版）》
CAS
2004年第2期147-149,共3页
Journal of Baoji University of Arts and Sciences(Natural Science Edition)
关键词
杜芬方程
逼近法
非线性效应
幅频特性
Duffing equation
approximate method
non-linear effects
characteristics of swing and frequency
