航空发动机附件齿轮由于行波共振会引起成块断裂的破坏。针对航空发动机转速高、测量环境复杂、信噪比低等特点，为了准确测量行波共振转速，设计合适的声波导管，将齿轮产生的机械噪声以平面波的形式从附件机匣内部传递出来，布置声传感器测量齿轮噪声，然后对声信号进行时频分析，获得齿轮的行波共振转速、频率及激励源。其结果与有限元计算结果相比最大误差为3.75%，验证了准确性。最后对比分析了齿轮在不同边界条件下的行波共振转速，结果显示边界条件对高阶行波频率影响较小，为航空发动机齿轮设计和故障诊断提供了简单、有效的手段。
Abstract
Aero-engine accessory gears could be damaged in the form of block fracture due to traveling-wave resonance. Considering the features of high speed, complicated measuring environment and low SNR, a measurement method for traveling-wave resonance was proposed. Acoustic sensors were placed to measure the mechanical noise of accessory gears exported from the inside of an accessory gearbox in the form of plane wave by using an acoustic catheter. Then the time-frequency analysis of signals was carried out to achieve the traveling wave resonance speed, its frequency and the excitation source of gears. The maximum error is 3.75%, compared with the result of the finite element calculation, which verifies the accuracy of the method. The experimental results of gears under different boundary conditions were compared. The results show that the boundary conditions have little effect on the high-order traveling wave frequency. The study provides a simple and effective means for the aero-engine gear design and troubleshooting.
关键词
航空发动机 /
附件齿轮 /
行波共振 /
声波导管
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Key words
aero-engine /
accessory gear /
travelling wave /
acoustic waveguide
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参考文献
[1] 欧阳旭靖，郭梅，王建军.基于共振分析的发动机附件传动系统危险齿轮的确定[J].航空发动机, 2016, 42(1):25-31.
OUYANG Xujing, GUO Mei, WANG Jianjun. Determine the dangerous gear in accessory gear System of engine based on resonance analysis[J]. Aero-engine, 2016, 42(1):25-31.
[2] 王海霞，袁惠群，冯鑫.发动机附件机匣振动分析与故障排除方法[J].振动、测试与诊断, 2013, 33(S1):206-209.
WANG Haixia, YUAN Huiqun, FENG Xin. Vibration analysis and troubleshooting method of engine accessory gearbox[J]. Journal of Vibration, Measurement &Diagnosis, 2013, 33(S1):206-209.
[3] 刘更，南咪咪，刘岚等.摩擦对齿轮振动噪声影响的研究进展[J].振动与冲击, 2018, 37(4):35-41.
LIU Geng，NAN Mimi，LIU Lan，et al. A review on tribodynamics and friction noise of gears[J]. Journal of vibration and shock, 2018, 37(4):35-41.
[4] 张金梅，刘更，周建星等.人字齿轮减速器振动噪声影响因素仿真分析研究[J].振动与冲击, 2014, 33(11):161-166.
ZHANG Jinmei，LIU Geng，ZHOU Jianxing，et al..Simulation analysis of influencing factors on vibration and noise of a herringbone gear speed-reducer[J].Journal of vibration and shock, 2014, 33(11):161-166..
[5] 刘天文.某型航空发动机中心锥齿轮动力学特性研究[D].南京：南京航空航天大学，2015.
LIU Tianwen. Dynamic characteristics research of the central bevel gear in an aero-engine[D]. Nanjing：Nanjing University of Aeronautics and Astronautics, 2015.
[6] HU Zehua, TANG Jinyuan, CHEN Siyu, et al. Coupled translation-rotation vibration and dynamic analysis of face geared rotor system[J]. Journal of Sound and Vibration, 2015, 351:282-298.
[7] 江平，李刚,陈青兰等.航空发动机附件传动齿轮辐板动应力测试技术[J].航空动力学报，2016，31(10)：2536-2543.
JIANG Ping，LI Gang，CHEN Qinglan, et al.Dynamic strain monitoring technique for the rim of cylinder gear in the aero-engine[J]. Journal of Aerospace Power, 2016，31(10)：2536-2543.
[8] 王大勇.航空薄辐板齿轮固有特性及稳态响应分析[J].机械传动, 2016, 40(5):145-147.
WANG Dayong. Inherent characteristic and steady response analysis of aviation gear with thin-spoke[J]. Journal of Mechanical Transmission, 2016, 40(5):145-147.
[9] 于印蠢.齿轮传动系统若干动力学问题研究[D].沈阳：东北大学，2015.
YU Yinxin. Study on some problems of dynamics about gear transmission system[D].Shenyang：Northeastern University, 2015.
[10] 张智博.声学材料性能测试及评价实验研究[D].上海：上海交通大学，2007.
ZHANG Zhibo.Experimental research on acoustic material’s performance testing and estimate[D]. Shanghai：Shanghai Jiao Tong University, 2007.
[11] 王佐民，蔺磊，俞悟周.通风隔声窗高频声学性能的传递矩阵法分析[J].声学技术, 2007, 26(5):904-906.
WANG Zuomin, LIN Lei, YU Wuzhou. Study on high frequency acoustical performance of a ventilation and sound insulation window using transfer matrix method[J]. Technical Acoustics, 2007, 26(5):904-906.
[12] 杜功焕,朱哲民，龚秀芬.声学基础[M].南京：南京大学出版社，2016.
[13] 吕晓军，杨迎春，周其斗.介质速度对有限长导管内外声场影响研究[J].振动与冲击, 2013, 32(11):145-148.
LÜ Xiaojun, YANG Yingchun, ZHOU Qidou. Effect of fluid velocity on acoustic field of a finite-length duct[J]. Journal of vibration and shock, 2013, 32(11):145-148.
[14] Q/8SJGF50.1008-2006.直升机传动系统齿轮振动设计规范[J]. 株洲：中国航发湖南动力机械研究所，2006.
[15] 常乐浩，贺朝霞，刘更.平行轴齿轮传动系统动力学建模的有限元法[J].振动与冲击, 2016, 35(20):47-53.
CHANG Lehao，HE Zhaoia，LIU Geng. Dynamic modeling of parallel shaft gear transmission using finite element method[J]. Journal of vibration and shock, 2016, 35(20):47-53.
[16] 徐成，吴莉，陈励军.声波导管传播特性实验评估研究[J].声学与电子工程, 2015, (4):23-28.
XU Cheng，WU Li，CHEN Lijun. Experimental study on propagation characteristics of acoustic wave[J].Acoustics and Electronics Engineering. 2015, (4):23-28.
[17] 王宇，于晓光，罗忠等.不同边界条件下高速旋转带蓖齿薄壁短圆柱壳的行波共振特性研究[J].振动与冲击, 2018, 37(10):20-26.
WANG Yu，YU Xiaoguang，LUO Zhong，et al. Travelling wave resonance characteristics of a high-speed rotating thin short cylindrical shell with sealing teeth in various boundary conditions[J]. Journal of vibration and shock, 2018, 37(10):20-26.
[18] 古成中，吴新跃，张文群.辐板刚度、阻尼及齿面摩擦对齿轮振动特性的影响[J].振动与冲击, 2011, 30(9):178-183.
GU Chengzhong，WU Xinyue，ZHANG Wenqun. Effects of teeth surface friction, web damping and web stiffness on nonlinear dynamic behaviors of gear transmission system[J]. Journal of vibration and shock, 2011, 30(9):178-183.
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