带有动力吸振器的浮筏隔振系统的功率流传递特性分析  

Power flow analysis of floating raft systems with dynamic vibration absorbers

作　　者：张鲲[1] 孙红灵[1] 陈海波[1] 张培强[1] 

机构地区：[1]中国科学技术大学力学和机械工程系中国科学院材料力学行为和设计重点实验室,安徽合肥230027

出　　处：《中国科学技术大学学报》2007年第1期13-19,共7页JUSTC

基　　金：总装备部重点基金资助

摘　　要：在传统浮筏隔振系统的弹性筏架上附加动力吸振器以提高系统的隔振性能.以功率流为指标,从理论上分析了方法的有效性.利用结构导纳综合法建立了有、无动力吸振器的弹性浮筏隔振系统模型;通过考察功率流传递特性,从能量的观点分析比较了相应复杂耦合隔振系统的隔振性能;通过算例探讨了吸振器的类型、安装位置和结构参数等因素对浮筏隔振系统隔振性能的影响.To improve the isolation performance of the conventional floating raft system, dynamic vibration absorbers （DVAs） were applied in the system. By using power flow as the performance index, the validity of the method was verified theoretically. The mathematical models of the complex coupled system with/ without the DVAs were realized by assembling the mobility matrices of the subsystems. Then the power flow transmission characteristics of the coupled system with/without the DVAs were investigated to evaluate and compare the isolation performance from the point of view of vibration energy transmission. Numerical simulations were performed to explore the influence of several parameters, such as the setting positions, types, damping and mass of the DVAs, on the power flow transmission of the floating raft system with DVAs.

关 键 词：动力吸振器 浮筏系统 功率流 隔振 

分 类 号：TB53[理学—物理]