考虑单点激振情况下篦齿封严结构减振规律的研究  

Study on the Shock Absorption Rule of Labyrinth Assembly Under Single-point Excitation Force

作　　者：李罡[1] 何俊勇[2] 

机构地区：[1]空军第一航空学院航空机械系,河南信阳464000 [2]北京航空航天大学,北京100083

出　　处：《噪声与振动控制》2007年第3期46-50,共5页Noise and Vibration Control

摘　　要：研究在单点激振情况下阻尼套筒对篦齿封严结构的减振规律。采用一种将柔度系数法、谐波平衡法与求解摩擦力的数值跟踪法相结合的时频转换方法,对带阻尼套筒的篦齿封严结构的响应进行计算。对阻尼套筒摩擦片沿周向和周向的不同分布对结构减振效果的影响进行分析,并得出相应结论。The shock absorption rule of labyrinth assembly under single-point excitation force is researched. The response calculation of labyrinth gas seals with damping sleeve is done by the time-frequency transition method, which includes of the merits of harmonic balance method, dynamic softness method and tracking motion method. The influences of shock absorption on structure are analyzed when the distributing of friction slices is changed along circle and axial direction, then the results are presented.

关 键 词：振动与波 阻尼套筒 篦齿封严 干摩擦 单点激振 响应计算 

分 类 号：V214.42[航空宇航科学与技术—航空宇航推进理论与工程] TH123.4[机械工程—机械设计及理论]