应用统计能量法对系统瞬态响应的研究  

Transient Statistical Energy Analysis of Shock

作　　者：刘文武[1] 朱石坚[1] 李华[2] 尹成彬[3] 

机构地区：[1]海军工程大学振动与噪声研究所 [2]海军大连舰艇学院海上实习中心 [3]92771部队

出　　处：《噪声与振动控制》2006年第6期19-21,共3页Noise and Vibration Control

摘　　要：用统计能量法研究了脉冲激励下两自由度系统的瞬态响应,得出了响应的峰值能量和上升时间的解析式,并对其进行了数值分析。研究表明:减小振子间的耦合刚度和增大振子的内损耗因子,能够有效减小响应的峰值能量;通过增大内损耗因子和耦合刚度,可以减小振子之间的能量交换。这些结论与传统方法给出的结果一致,而瞬态统计能量法比传统方法更为简洁。Transient statistic energy analysis for transient （ TSEA ） response of a two oscillator system. Mathematical expressions of the rise time and the peak energy were derived. Numerical modeling of the system was also made, It showed that the peak energy decrease as the internal loss factor and the coupling stiffness decrease, the rise time decease as the internal loss factor and the coupling loss factor increase. It was found that the results of TSEA and the traditional methods are identical.

关 键 词：振动与波 瞬态响应 统计能量法 

分 类 号：TB53[理学—物理]