垂尾抖振控制中多重动力吸振器设计  

Design of Multiple Dynamic Vibration Absorbers for Buffet Control of Vertical Tails

作　　者：牛文超[1] 李斌[1] 

机构地区：[1]西北工业大学飞行器结构力学与强度技术国防重点学科实验室,西安710072

出　　处：《噪声与振动控制》2016年第3期197-200,共4页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(11172238);中央高校基本科研业务费专项资金资助项目(3102014KYJD015)

摘　　要：针对飞机垂尾抖振抑制的需要,进行小型电涡流耗能动力吸振器设计,并推导多重动力吸振器最优参数设计方法。分别以悬臂梁系统和缩比垂尾为被控对象,并考虑动力吸振器与垂尾实际尺寸,选定合理安装位置,通过有限元仿真验证多重动力吸振器吸振性能,仿真结果表明多重动力吸振器具有良好的振动抑制效果,可满足设计预期要求。Aiming at the need of vertical tail buffet suppression, the eddy current vibration absorber is designed and itsparameters is introduced. The optimal design parameters method of the multiple dynamic vibration absorber is deduced torealize the vibration absorber miniaturization. Taking an equivalent cantilever beam system and a scaled vertical tail as theobjects respectively for vibration control, considering the actual size of the vibration absorber and the vertical tail, andchoosing the reasonable installation position, the vibration absorption effect of the multiple-dynamic-vibration-absorber isverified through the finite element simulation. Simulation results show that the vibration suppression property of themultiple- dynamic- vibration- absorber scheme is very good. Compared to the single large dynamic vibration absorber, thevibration attenuation rate of the quadruple dynamic vibration absorber scheme is increased by 16 %, and will be raised by20 % for the ten-dynamic-vibration-absorber scheme.

关 键 词：振动与波 抖振抑制 电涡流阻尼力 多重动力吸振器 有限元 优化设计参数 

分 类 号：V214[航空宇航科学与技术—航空宇航推进理论与工程]