关键词: 复合材料, 依赖频率阻尼, 虚拟激励法, 随机振动

Abstract:

An efficient and accurate non-stationary random vibration algorithm for the composite laminated structures attached with viscoelastic damping layer was proposed. Both the Adams damping of the composite laminated structures and the attached frequencydependant damping were taken into account in the analysis. For the resulting non-classically damped and frequencydependant complex system, in combination with the realmodebased degreereduction scheme, the pseudo excitation method was developed and the precise integration method was applied to solve the reduced non-stationary random vibration equation.

Key words: composite,  , frequencydependant , damping,  , pseudo , excitation , method,  , random , vibration