摘要
采用复模态分析方法研究了陀螺系统及具有粘性阻尼的陀螺系统的动力响应及其数值分析方法,提出了陀螺模态阻尼比的概念,实现了利用有限元结构分析软件对诸如薄壁旋转轴和转动薄壁壳体等各类形式的复杂旋转薄壁结构进行动力特性分析的目的,讨论了不同条件(单点旋转简谐激励和沿圆周呈周波型分布的激励)条件下转动薄壁壳体结构的行波振动特点.
The dynamic response of damped gyroscopic system was researched by the complex modal method,and the concept of gyroscopic damping ratio was also put forward in this paper. With the method proposed in this paper, it is possible to analyze the dynamic characteristics of rotating thin-walled structures such as the rotating thin-walled sh^ft and shell. The characteristics of traveling wave vibration of shell under different load condition （single-point harmonic load and the harmonic load with k circumferential waves） were also discussed.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2008年第10期1847-1853,共7页
Journal of Aerospace Power
关键词
复模态
阻尼陀螺系统
动力响应
行波振动
complex modal method
damped gyroscopic system
dynamic response
traveling wave vibration
作者简介
曾亮（1976-），男，四川资阳人,博士，主要从事机械振动控制与减振技术研究。
