LI Lele,SHENG Xiaozhen,THOMPSON David

• 1:School of Urban Railway Transportation
• 2: Shanghai University of Engineering Science
• 3:Technology Department
• 4: Orient Institute of Noise and Vibration

摘要(Abstract)：

Previous studies have shown that the introduction of circular holes on the wheel web(web-perforation) to form an acoustic short-circuit might be a way to reduce wheel acoustic radiation. Based on a typical train wheel, this paper provides a numerical study on web perforation for controlling sound radiation from train wheels. Finite/boundary element models are established for wheels with 4, 6, or 8 holes with radii of 20, 30, or 60 mm. In the acoustic boundary element calculations, the conflicting requirements on frequency resolution and computational efficiency are resolved using the modal-acoustic transfer function method. Due to the strong directionality of the acoustic radiation, sound power is calculated using 578, rather than 20as suggested in ISO standards, points on a hemisphere above a reflection ground. It is pointed out that the sound power of a web-perforated wheel under a unit wheel-rail force is not sufficient to evaluate the advantages or disadvantages of the perforation scheme, but the receptances of the wheel and rail at the wheel-rail contact point must be jointly considered. Modal contribution to sound power due to wheel-rail roughness and the associated sensitivity are formulated, which may be used for initially designing perforation schemes. Results show that web-perforation not only changes the sound radiation behavior of the wheel, but also changes the dynamics of the wheel. As a result, subject to wheel-rail roughness, wheel web perforation can reduce wheel noise in some frequency bands, but increase noise in other bands.

关键词(KeyWords)：

Abstract:

Keywords:

基金项目(Foundation): supported by the National Natural Science Foundation of China (52272352, U2468226);; the Ministry of Science and Technology of China under International Collaboration Project (G2023013016L)

作者(Author): LI Lele,SHENG Xiaozhen,THOMPSON David

参考文献(References)：

• [1]Thompson D J. Railway noise and vibration:mechanisms, modelling and means of control. 2nd ed. London:Elsevier, 2024
• [2]Li M X, Zhong S Q, Deng T S, et al. Analysis of source contribution to pass-by noise for a moving high-speed train based on microphone array measurement. Measurement, 2021, 174:109058
• [3]Sheng X Z, Zhang S M, Xiao X B, et al. Recent advances on research into high-speed railway noise. Intell. Transp. Infrastruct.,2023, 2:liad015
• [4]Garcia-Andrés X, Gutiérrez-Gil J, Martínez-Casas J, et al. Wheel shape optimization approaches to reduce railway rolling noise.Struct. Multidiscip. Optim., 2020, 62(5):2555-2570
• [5]Nielsen J C O, Fred??C R. Multi-disciplinary optimization of railway wheels. J. Sound Vib., 2006, 293(3-5):510-521
• [6]He Y P, Zhou Q, Xu F, et al. An investigation into the effect of rubber design parameters of a resilient wheel on wheel-rail noise. Appl.Acoust., 2023, 205:109259
• [7]Bouvet P, Vincent N, Coblentz A, et al. Optimization of resilient wheels for rolling noise control. J. Sound Vib., 2000, 231(3):765-777
• [8]Thompson D J, Gautier P E. Review of research into wheel/rail rolling noise reduction. Proc. Inst. Mech. Eng. Part F J. Rail Rapid Transit, 2006, 220(F4):385-408
• [9]Betgen B, Bouvet P, Squicciarini G, et al. Estimating the performance of wheel dampers using laboratory methods and a prediction tool.The 11th International Workshop on Railway Noise, Uddevalla,Sweden, 2013
• [10]Daneryd A, Nielsen J, Lundberg E, et al. On vibro-acoustic and mechanical properties of a perforated railway wheel. The 6th International Workshop on Railway and Tracked Transit System Noise,G??teborg, Sweden, 1998:305–317
• [11]Putra A, Thompson D J. Sound radiation from perforated plates. J.Sound Vib., 2010, 329(20):4227-4250
• [12]Yang X W, Shi G T, Yang J J. Effect of web hole on vibration noise radiation characteristics of railway wheel. China Railw. Sci., 2014,35(2):58-64(in Chinese)
• [13]Tong X Q, Lin J, Zhang G Y, et al. Influence of web plate holes on the radiation noise characteristics of wheels of the high speed train.J. Vibroeng., 2016, 18(7):4870-4884
• [14]Cheng G. Study on the prediction of wheel-rail rolling noise for high-speed railway using slab track. Doctoral dissertation, Chengdu:Southwest Jiaotong University, 2021
• [15]Sheng X, Zhong T, Li Y. Vibration and sound radiation of slab highspeed railway tracks subject to a moving harmonic load. J. Sound Vib., 2017, 395:160-186
• [16]He Y P, Cheng G, Han J, et al. Modeling noise radiation from concrete box girder bridges as an infinitely long periodic structure excited by a high-speed train. J. Vib. Acoust., 2021, 143(3):031015