摘要 : In this paper, a method is proposed for predicting the dynamic response of mechanical systems subject to combinational structural modifications. It can be found that dynamic responses of mechanical systems subject to combinational... 展开 In this paper, a method is proposed for predicting the dynamic response of mechanical systems subject to combinational structural modifications. It can be found that dynamic responses of mechanical systems subject to combinational structural modifications can be calculated from the variant transmissibility matrices of the one-modification system and the dynamic response of the base system, even though operational forces are unknown. The variant transmissibility is defined to relate the response of the modified system and that of the base system. The dynamic coupling between structural modifications to the system is also investigated. The achievements can be used for both finite element models and real-life systems to reduce cost of determining the optimal combination of design modifications. The benefits of the proposed method are illustrated and validated using the numerical example, finite element simulations and experimental case studies. 收起