关键词: 风抖振, 复杂结构, 随机振动, 虚拟激励法

Abstract: The pseudo excitation method (PEM) is extended to the analysis of wind-excited random vibration (buffeting) of complex structures. The partial correlation between wind-excitations and the cross-correlation terms between the participant modes have all been involved in the computations. The proposed method is not only accurate, but also very efficient, e.g. structures with thousands of degrees of freedom can be computed very quickly on ordinary personal computers. A large shipyard crane is taken as a case study of the method.

Key words: Complex structure, Pseudo excitation method, Stationary random vibration, Wind buffeting