干摩擦阻尼器对宽频多阶次激励减振效果分析

李琳; 刘久周; 李超

doi:10.13224/j.cnki.jasp.2016.09.016

干摩擦阻尼器对宽频多阶次激励减振效果分析

doi: 10.13224/j.cnki.jasp.2016.09.016

李琳^1,2,
刘久周^1,2,
李超^1,2

1. 北京航空航天大学能源与动力工程学院, 北京 100191;
2. 先进航空发动机协同创新中心, 北京 100191

详细信息

作者简介:
李琳(1956-),女,河北唐山人,教授、博士生导师,博士,主要从事航空发动机叶盘结构振动、流固耦合动力学研究.

中图分类号: V231
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- 被引次数: 0
出版历程
- 收稿日期: 2015-01-12
- 刊出日期: 2016-09-28

Analysis on damping effect of dry friction damper under wideband multi-harmonic excitation

LI Lin^1,2,
LIU Jiu-zhou^1,2,
LI Chao^1,2

1. School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. Collaborative Innovation Center for Advanced Aero-Engine, Beijing 100191, China

摘要

摘要: 在对干摩擦阻尼非线性系统响应求解的高阶谐波平衡法、摩擦力时域求解的时间推进法以及时频转换（AFT）法中的关键技术进行介绍的基础上，采用将时频转换法与高阶谐波平衡法相结合的方法对典型航空发动机叶片缘板阻尼器宽频多阶次激励的减振效果进行计算与分析.通过与直接积分法获得的结果进行对比，表明该方法具有较高的计算精度，且计算效率远远高于直接积分法.对比了保留不同谐波阶次时的计算结果，说明对航空发动机中宽频多阶次激励下的干摩擦阻尼系统进行分析计算时需要保留非线性力的高阶谐波成分，才能获得准确的结算结果.干摩擦阻尼器对于不同频率成分激起的共振峰值的最优正压力值不同，实际中应针对激振频率带宽及具体的减振需求，对阻尼器的设计参数进行优化设计，使得系统在整个工作频带上振动响应最小.
- 干摩擦阻尼器 /
- 非线性 /
- 高阶谐波平衡法 /
- 时频转换法 /
- 多阶次激励 /
- 振动抑制
Abstract: The key points of multi-harmonic balance method, time-marching procedure of obtainning the friction force in time domain and alternating frequency-time (AFT) domain procedure were introduced. The analysis on damping effect of under-platform damper in aero-engine was investigated using a multi-harmonic balance method combined with an AFT domain procedure, showing that this method is precise and its computational efficiency is much higher than the direct integral method. Influence of the number of harmonics on forced response indicates that more harmonic components should be kept when investigating the damping effect of under-platform damper in aero-engine under wideband multi-harmonic excitation. The optimal normal contact loads of the resonant peaks induced by various excitation frequencies are different; in practice, the design parameters of the friction damper should be optimized in line with the frequency components of excitation and the requirement of vibration attenuation to obtain the minimum response in the whole frequency range.
- dry friction damper /
- nonlinearity /
- high-harmonic balance method /
- alternating frequency-time domain method /
- multi-harmonic excitation /
- vibration attenuation

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参考文献(18)

[1]	Griffin J H.A review of friction damping of turbine blade vibration[J].International Journal of Turbo and Jet Engines,1990,7(3/4):297-308.
[2]	单颖春,郝燕平,朱梓根,等.干摩擦阻尼块在叶片减振方面的应用与发展[J].航空动力学报,2001,16(3):218-223. SHAN Yingchun,HAO Yanping,ZHU Zigen,et al.Application and development of platform friction damper for depressing resonant vibration of blades[J].Journal of Aerospace Power,2001,16(3):218-223.(in Chinese)
[3]	Wang J H,Shieh W L.The influence of a variable friction coefficient on the dynamic behavior of a blade with a friction damper[J].Journal of Sound and Vibration,1991,149(1):137-145.
[4]	Wang J H,Chen W H.Investigation of the vibration of a blade with friction damper by HBM[J].Journal of Engineering for Gas Turbines and Power,1993,115(2):294-299.
[5]	Pierre C,Ferri A A,Dowell E H.Multi-harmonic analysis of dry friction damped systems using an incremental harmonic balance method[J].Journal of Applied Mechanics,1985,52(4):958-964.
[6]	Cameron T M,Griffin J H.An alternating frequency/time domain method for calculating the steady-state response of nonlinear dynamic systems[J].Journal of Applied Mechanics,1989,56(1):149-154.
[7]	Guillen J.Studies of thedynamics of dry-friction-damped blade assemblies[D].Michigan:University of Michigan.,1999.
[8]	Poudou O.Modeling and analysis of the dynamics of dry-friction-damped structural systems[D].Michigan:University of Michigan,2007.
[9]	Poudou O,Pierre C.Hybrid frequency-time domain methods for the analysis of complex structural systems with dry friction damping[R].AIAA-2003-1411,2003.
[10]	Nacivet S,Pierre C,Thouverez F,et al.A dynamic Lagrangian frequency-time method for the vibration of dry-friction-damped systems[J].Journal of Sound and Vibration,2001,265(1):201-219.
[11]	Laxalde D,Thouverez F,Sinou J J,et al.Qualitative analysis of forced response of blisks with friction ring dampers[J].European Journal of Mechanics A:Solids,2007,26(4):969-978.
[12]	Herzog A,Krack M.Comparison of two widely-used frequency-time contact models for the vibration simulation of shrouted turbine blades[C]//Proceedings of ASME Turbo Expo 2014.Dusseldorf,Germany:ASME,2014:7-18.
[13]	Krack M,Herzog A,Panning S,et al.Multiharmonic analysis and design of shroud friction joints of bladed disks subject to microslip[C]//Proceedings of the ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference.Chicage,USA:ASME,2012:1-10.
[14]	刘雅琳,上官博,徐自立.抗叠混时频域融合算法及在叶片响应分析中的应用[J].航空动力学报,2012,27(6):1238-1242. LIU Yalin,SHANGGUAN Bo,XU Zili.Anti-analysis alternating frequency/time domain method its application in response analysis of blade systems[J].Journal of Aerospace Power,2012,27(6):1238-1242.(in Chinese)
[15]	李琳.考虑库伦阻尼时叶盘系统振动响应的求解方法[J].航空动力学报,1998,13(4):366-370. LI Lin.A solution for dynamic response of shrouded bladed disc with coulomb damping[J].Journal of Aerospace Power,1998,13(4):366-370.(in Chinese)
[16]	李琳,范雨.二自由度扭转干摩擦系统的频域响应计算方法[J].航空动力学报,2013,28(4):850-857. LI Lin,FAN Yu.Frequency domain solution of 2-DOF torsional dry friction system[J].Journal of Aerospace Power,2013,28(4):850-857.(in Chinese)
[17]	王培屹.叶盘结构流致振动抑制问题研究[D].北京:北京航空航天大学,2014. WANG Peiyi.Research on vibration suppression theory of bladed disk of aeroengine under fluid excitation[D].Beijing University of Aeronautics and Astronautics,2014.(in Chinese)
[18]	吴向宇,韩绪军,张海洋,等.高压涡轮工作叶片缘板阻尼器结构设计分析[J].航空动力学报,2014,29(6):1376-1381. WU Xiangyu,HAN Xujun,ZHANG Haiyang,et al.Analysis and design of platform damper construction for high pressure turbine blade[J].Journal of Aerospace Power,2014,29(6):1376-1381.(in Chinese)