Noise-induced Vibration Experiment of Aircraft Structure and Vibro-Acoustic Coupling Response Analysis

ZHANG Guo-jun; YAN Yun-ju; LI Peng-bo

doi:10.3879/j.issn.1000-0887.2013.11.005

Volume 34 Issue 11

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Article Navigation > Applied Mathematics and Mechanics > 2013 > 34(11): 1157-1164

ZHANG Guo-jun, YAN Yun-ju, LI Peng-bo. Noise-induced Vibration Experiment of Aircraft Structure and Vibro-Acoustic Coupling Response Analysis[J]. Applied Mathematics and Mechanics, 2013, 34(11): 1157-1164. doi: 10.3879/j.issn.1000-0887.2013.11.005

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Noise-induced Vibration Experiment of Aircraft Structure and Vibro-Acoustic Coupling Response Analysis

doi: 10.3879/j.issn.1000-0887.2013.11.005

School of Mechanics, Civil and Architecture, Northwestern Polytechnical University, Xi’an 710129, P.R.China

Funds: The National Natural Science Foundation of China;The National Basic Research Program of China (973 Program)

Received Date: 2013-07-05
Rev Recd Date: 2013-09-12
Publish Date: 2013-11-15

Abstract

Abstract

Aimed at the hypersonic aircraft X-43A in the research, the FE model was established. Natural frequency testing of the aircraft structure model was performed. The numerical values of natural frequency were compared with the experiment results, with errors at about 1%, which showed that the FE model of the aircraft was correct. A noise-induced vibration experiment of the aircraft model was completed in the high intensity sound laboratory, which could obtain the results of PSD and noise pressure. Comparison of the simulation values with the experiment results shows that the method of numerical simulation is reliable in prediction of the vibration and noise environment of the aircraft cabin. The trend of the numerical vibro-acoustic response is well consistent with that of the test results: there is little difference in low-frequency range the elastic cavity structural vibration of the aircraft model caused by high-frequency noise field outside the cavity makes the main components of structural vibration, especially of the low-order structural vibration. Noise in the aircraft cabin transmitted from the outer noise field is through the low-order vibration of the aircraft shell. The main components of the response noise frequencies in the closed cabin belong to structural low-order modal vibration, even if the noise excitation outside the cabin is broadband.
- aircraft,
- noise-induced vibration experiment,
- vibro-acoustic response,
- experimental verification

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References(8)

References

[1]	王其政, 刘斌, 宋文滨. 航天事故与动力学环境预示和控制技术研究述评[J]. 环境技术, 1995, 29(4): 1-6.(WANG Qi-zheng, LIU Bin, SONG Wen-bin. Aerospace failure and survey of prediction and control technique of dynamic environment[J].Environmental Technology,1995, 29(4): 1-6.(in Chinese))
[2]	王昆.飞行器结构统计能量建模方法及声振响应分析研究[D]. 硕士学位论文. 哈尔滨工业大学, 2010.(WANG Kun. The research of modeling of aircraft structures by SEA and vibroacoustic analysis[D]. Master Thesis. Harbin: Harbin Institute of Technology, 2010.(in Chinese))
[3]	胡选利, 陈花玲, 赵建平. 声振耦合数值模型合理性分析和实验验证[J]. 西安交通大学学报, 1997, 31(7): 1-6.(HU Xuan-li, CHEN Hua-ling, ZHAO Jian-ping. Rationalization and experiments of current vibroacoustic analytical models[J].Journal of Xi’an Jiaotong University,1997, 31(7): 1-6.(in Chinese))
[4]	尹立中, 徐孝诚, 谭志勇. 再入飞行器壳体气动噪声响应分析和试验验证[J]. 强度与环境, 2002, 29(2): 5-9.(YIN Li-zhong, XU Xiao-cheng, TAN Zhi-yong. Response analysis and experimental verification for reentry vehicle shell subjected to aerodynamic noise[J].Structure and Environment Engineering,2002, 29(2): 5-9.(in Chinese))
[5]	孙目, 王小军, 潘忠文, 王明宇. 统计能量分析在飞行器动力学环境预示中的应用[J]. 导弹与航天运载技术, 2009, 301(3): 11-14.(SUN Mu, WANG Xiao-jun, PAN Zhong-wen, WANG Ming-yu. Applications of statistical energy analysis in prediction of flight dynamics environment[J].Missiles and Space Vehicles,2009, 301(3): 11-14.(in Chinese))
[6]	尹忠俊, 岳恒昌, 陈兵, 王文瑞, 赵爱民. 基于统计能量法的排气管道系统的振动和噪声分析与研究[J]. 振动与冲击, 2010, 29(2): 159-162.(YIN Zhong-jun, YUE Heng-chang, CHEN Bing, WANG Wen-rui, ZHAO Ai-min. Vibration and noise analysis of an exhaust piping system based on statistical energy analysis[J].Journal of Vibration and Shock,2010, 29(2): 159-162.(in Chinese))
[7]	Desmet W, Sas P, Vandepitte D.Numerical Acoustics Theoretical Manual [M]. Leuven: LMS International, 2000.
[8]	张国军, 闫云聚, 李鹏博. 用统计能量法分析飞行器声振响应影响因素[J]. 空军工程大学学报(自然科学版), 2013, 14(2): 23-27.(ZHANG Guo-jun, YAN Yun-ju, LI Peng-bo. Applications of statistical energy analysis in influencing factors analysis of aircraft vibro-acoustic response characteristics[J].Journal of Air Force Engineering University( Natural Science Edition),2013, 14(2): 23-27.(in Chinese))