用于直升机舱内降噪的新型径向周期撑杆研究

摘要
图/表
参考文献(20)
相关文章 (15)

全文: PDF (1877 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要利用周期结构的宽频阻带特性，结合橡胶材料的剪切性能，提出了一种新型径向主减速器周期撑杆构型，抑制主减速器中高频振动向机体的传递，进而实现直升机舱内降噪。基于该构型，利用轴对称单元、胡克定律和虚位移原理推导得到了其径向子单元的等效刚度和质量，并进一步推导得到了整个撑杆的动力学和静力学分析模型；在此基础上，通过参数分析研究，获得了径向周期撑杆主要设计参数对阻带特性和刚度特性的影响规律，以此为依据设计得到了一种满足某型机使用需求的样例径向周期撑杆；进一步从刚度强度、减振和降噪三方面进行仿真分析，验证了该技术方案具有在直升机上应用的可行性和有效性，在500~4000Hz频率范围内宽频降噪效果明显，最大可达40dB。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	王风娇1
	李明强1
	彭海锋1
	陆洋2

关键词 ：直升机, 舱内降噪, 周期撑杆, 主减速器, 振动

Abstract：Based on the stopband characteristics of periodic structure as well as the shear performance of rubber material, a new radial periodic strut for main gearbox was proposed to suppress the transmission of high frequency vibration from the main gearbox to the fuselage, which is able to realize the noise reduction in helicopter cabin. For this configuration, the equivalent stiffness and mass of the radial sub-element were derived using the axially symmetric element, Hooke's law and virtual displacement principle, and the dynamic and static analysis models of the whole strut were further derived. On this basis, the influence of the main design parameters of the radial periodic strut on the stopband characteristics and the strength and stiffness characteristics is obtained through the parameter analysis. Subsequently, a sample strut was designed to meet the requirements of a certain helicopter model. Simulation analysis was then carried out from three aspects of vibration reduction characteristics, stiffness and strength to verify the feasibility and effectiveness of the proposed scheme in the application of helicopter. The results show that the broadband noise attenuation is obvious and up to 40dB in the frequency range of 500-4000Hz.

Key words： helicopter cabin noise reduction periodic strut main gearbox vibration

收稿日期: 2021-11-03 出版日期: 2023-02-28

引用本文:

王风娇1，李明强1，彭海锋1，陆洋2. 用于直升机舱内降噪的新型径向周期撑杆研究[J]. 振动与冲击, 2023, 42(4): 286-294.
WANG Fengjiao1, LI Mingqiang1, PENG Haifeng1, LU Yang2. A study on a novel radial periodic strut for noise reduction in a helicopter cabin. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(4): 286-294.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I4/286

[1] Scheidler J J. A review of noise and vibration control technologies for rotorcraft transmissions [C]. INTER-NOISE and NOISE-CON congress and conference proceedings. Hamburg, German: Institute of Noise Control Engineering, 2016, 253(5): 2986-2997.
[2] 殷鹏, 黄斌根, 刘忠超. 直升机舱内噪声特性分析[J]. 直升机技术, 2019, (4): 28-31.
YIN P, HUANG Bingen, LIU Zhongchao. Analysis of Noise Characteristics in Helicopter Cabin[J]. Helicopter Technique, 2019, (4): 28-31.
[3] Hoffmann F, Maier R, Jänker P, et al. Helicopter interior noise reduction by using active gearbox struts [C]. 12th AIAA/CEAS Aeroacoustics Conference. Cambridge, USA: The American Institute of Aeronautics and Astronautics Inc., 2006: 2604.
[4] Coy J J, Handschuh R F, Lewicki D G, et al. Identification and proposed control of helicopter transmission noise at the source[R]. USAAVSCOM-TR-87-C-2, 1987.
[5] Yoerkie C A, Moore J A. Statistical energy analysis modeling of helicopter cabin noise [C]. Proceedings of the American Helicopter Society 39th Annual Forum, St Louis Missouri, USA: The American Helicopter Society Inc, 1983: 458-471.
[6] 雷烨, 盛美萍, 肖和业. 直升机舱内噪声预估与分析[J]. 振动、测试与诊断, 2010, 30(6) :617-620.
LEI Ye, SHENG Meiping, XIAO Heye. Prediction and Analysis of Helicopter Cockpit Noise[J]. Journal of Vibration Measurement & Diagnosis, 2010, 30(6) : 617-620.
[7] Levine L S. Reduction the cost impact of helicopter internal noise control[C]. Proceedings of the American Helicopter Society 36th Annual Forum, Washington, USA: The American Helicopter Society Inc, 1980.
[8] Wang F, Torbati M M, Ma X, Lu Y. Design of Near-Periodic Struts for Helicopter Gearbox Vibration Isolation Using Multicell Optimization[J]. AIAA Journal, 2019, 57(6): 2634-2647.
[9] Wang F, Lu Y, Lee H P, et al. A novel periodic mono-material strut with geometrical discontinuity for helicopter cabin noise reduction[J]. Aerospace Science and Technology, 2020, 105:105985.
[10] 宋玉宝, 李征初, 黄奔, 等. 周期隔振设计用于直升机舱内噪声抑制的研究[J]. 振动工程学报, 2020(4): 764-771.
SONG Yubao, LI Zhengchu, HUANG Ben, et al. Reduction of helicopter cabin noise using periodic isolation design[J]. Journal of Vibration Engineering, 2020(4):764-771.
[11] Szefi J T. Helicopter gearbox isolation using periodically layered fluidic isolators[D]. State College: The Pennsylvania State University, 2003.
[12] Lu Y, Wang F, Ma X. Helicopter interior noise reduction using compounded periodic strut[J]. Journal of Sound and Vibration, 2018, 435: 264-280.
[13] Wang F, Lu Y, Lee H P, Ma X. Vibration and noise attenuation performances of compounded periodic struts for helicopter gearbox system[J]. Journal of Sound and Vibration, 2019, 458: 407-425.
[14] Asiri S, Baz A, Pines D. Periodic struts for gearbox support system[J]. Modal Analysis, 2005, 11(6): 709-721.
[15] Szefi J T, Smith E C, Lesieutre G A, et al. Design of fludic, high-frequency periodically layered isolators for model 427 gearbox isolation [C]. Proceedings of the American Helicopter Society 62nd Annual Forum, Phoenix, USA: The American Helicopter Society Inc, 2006, 2: 954-964.
[16] 王风娇. 基于主减速器周期撑杆的直升机舱内减振降噪技术研究[D]. 南京：南京航空航天大学. 2019.
WANG Fengjiao. Helicopter cabin vibration and noise reduction based on gearbox periodic struts [D]. Nanjing: Nanjing University of Aeronautics and Astronautics. 2019.
[17] Adkins J E, Gent A N. Load-deflexion relations of rubber bush mountings[J]. British Journal of Applied Physics, 1954, 5(10): 354.
[18] 林孔勇. 橡胶工业手册.第6分册, 工业橡胶制品[M]. 化学工业出版社, 1993: 405,444.
LIN Kongyong. Handbook of rubber Industry. Vol.6, Industrial Rubber Products [M]. Chemical Industry Press, 1993: 405,444.
[19] 王清龙,刘正胜.新型无铰模型旋翼弹性轴承研究[J].直升机技术, 2020(04): 1-5.
WANG Qinglong, LIU Zhengsheng. Design and analysis of cylindrical elastomeric bearing and conical elastomeric bearing for the new type hingeless model rotor[J]. Helicopter Technique, 2020(04): 1-5.
[20] 董振华,张劲泉,韦韩,王仙.老化普通板式橡胶支座的剪切性能研究[J].工程力学, 2020, 37(S1): 208-216.
DONG Zhenhua , ZHANG Jinquan , WEI Han , et al. Study on shear performance of common plate rubber bearing in aged situation[J]. Engineering Mechanics, 2020, 37(S1): 208-216.