Applied Mathematics and Mechanics (English Edition) ›› 1994, Vol. 15 ›› Issue (6): 551-560.
邱志平, 陈塑寰, 刘中生
Qiu Zhi-ping, Chen Su-huan, Liu zhong-sheng
摘要: When the parameters of the structures are uncertain, the structural natural frequ-encies become uncertain. In this paper, we deal with the vibration problem of the struc-ture with interval parameters, the eigenvalue problem of the structures with intervalparameters is transferrd into two different eigenvalue problems to be solved. The per-turbation method is applied to the vibration problem of the structures with interval pa-rameters, the numerical results show that lhe proposed method is sufficiently accurateand needs little computational efforts.