阻尼陀螺系统动力响应的有限元复模态分析方法

曾亮; 李琳

阻尼陀螺系统动力响应的有限元复模态分析方法

曾亮¹,
李琳²

1.
中国民用航空总局,航空安全技术中心, 北京 100028
2.
北京航空航天大学能源与动力工程学院, 北京 100191

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出版历程
- 收稿日期: 2007-09-29
- 修回日期: 2008-01-22
- 刊出日期: 2008-10-28

Dynamic response of damped gyroscopic system with complex modal method

ZENG Liang¹,
LI Lin²

1.
Center of Aviation Safety Technology, General Administration of Civil Aviation of China, Beijing 100028, China
2.
School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

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.
- 复模态 /
- 阻尼陀螺系统 /
- 动力响应 /
- 行波振动
Abstract: 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 shaft 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.
- complex modal method /
- damped gyroscopic system /
- dynamic response /
- traveling wave vibration

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参考文献(10)

[1]	晏砺堂,朱梓根,李其汉.高速旋转机械振动[M].北京:国防工业出版社,1994.YAN Litang.ZHU Zigen.Ll Qihan.Vibration of rotating machinery in high speed[M].Beijing:National Defence Industry Press,1 994.(in Chinese)
[2]	张文.转子动力学理论基础[M].北京:科学出版社,1990.ZHANG Wen.The dynamics of rotor[M].Beijing:Science Press,1990.(in Chinese)
[3]	曹航.转动壳体的动力特性与屈曲分析[D].北京:北京航空航天大学,2002.CAO Hang.The dynamic and buckling analysis of rotating shell[D].Bering:Bering University of Aeronautics and Astronautics,2002.(in Chinese)
[4]	曾亮.旋转薄壁结构的减振装置设汁理论与实验研究[D].北京:北京航空航天大学,2007.ZENG Liang.The design and experiment research of damping devices for vibration control in thin-walled structures[-D3.Beijing:Beijing University of Aeronautics andAstronautics,2007.(in Chinese)
[5]	倪振华.振动力学[M].西安:西安交通大学出版社,1989.NI Zhenhua.Mechanics of vibration[M].Xi'an:Xi'anJiaotong University Press,1989.(in Chinese)
[6]	Meiroviteh L.A modal analysis for the response of linear gyroscopic system[J].Journal of Applied Mechanics,ASME,1975:446-450.
[7]	Meirovitch L,Ryland G.Response of slightly damped gy-roscopic system[J].Journal of Sound and Vibration,1979,67(2):l-19.
[8]	_f棒华,李琳.旋转脉动激励下壳体的行波振动[J].航空发动机,1999,1:30-33.WANG Guihua,LI Lin.Traveling wave vibration of shell under rotating impulse load[J].Journal of Aero engine,1999,1;30-33.(in Chinese)
[9]	王桂华,李琳.航空发动机风扇机匣行波振动的分析方法[J].航空动力学报,2000,15(2):183-186.WANG Guihua,LI Lin.Method for traveling wave vibration analysis of fan casing in aero-engine[J].Journal of Aerospace Power,2000,15(2):183-186.(in Chinese)
[10]	《航空发动机设计手册》总编委会.航空发动机设计手册:第18分册[M].北京:航空工业出版社,2001.