振动主动控制系统的统计能量分析  

Statistical energy analysis of active vibration control system

作　　者：楼京俊[1] 朱石坚[1] 丁少春[1] 

机构地区：[1]海军工程大学船舶与动力学院

出　　处：《振动与冲击》2010年第6期31-34,共4页Journal of Vibration and Shock

摘　　要：基于能量观点对振动主动控制系统进行了统计能量分析。首次推导出振动主动控制系统的统计能量关系式和耦合振子间耦合损耗因子的表达式,并通过实例研究了控制反馈系数对系统耦合损耗因子的影响,分析了阻尼对系统输入功率、子系统间传递功率流以及各子系统振动能量的影响。The statistical energy analysis(SEA) method was used to study the active vibration control characteristics of the system.The expressions of the statistical energy of the system and the coupling loss factor(CLF) were derived and the relationship between CLF and the active feedback coefficient was studied.The characteristics of input power flow,transfer power flow and system vibration energy under different damping coefficients were investigated in detail.The results are helpful to engineering problems and also to the development of SEA method.

关 键 词：主动控制 统计能量 功率流 反馈 耦合损耗因子 

分 类 号：TB53[理学—物理]