Effect of Wheel Load on Wheel Vibration and Sound Radiation

作     者：HAN Jian WANG Ruiqian WANG Di GUAN Qinghua ZHANG Yumei XIAO Xinbiao JIN Xuesong 

作者机构：State Key Laboratory of Traction PowerSouthwest Jiaotong University 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2015年第28卷第1期

页      面：46-54页

核心收录：

学科分类：12[管理学] 08[工学] 083002[工学-环境工程] 1204[管理学-公共管理] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 120402[管理学-社会医学与卫生事业管理(可授管理学、医学学位)] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0837[工学-安全科学与工程] 0802[工学-机械工程] 0814[工学-土木工程] 0811[工学-控制科学与工程] 0801[工学-力学（可授工学、理学学位）] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：Supported by National Science and Technology Support Program of China(Grant No.2009BAG12A01-B06) National Hi-tech Research and Development Program of China(863 Program,Grant No.2011AA11A103-2-2) Funds for Innovation Research Team of Ministry of Education of China(Grant Nos.IRT1178,SWJTU12ZT01) Fundamental Research Funds for the Central Universities and the Science of China(Grant No.SWJTU12ZT01) 2015 Doctoral Innovation Funds of Southwest Jiaotong University of China Project of State Key Laboratory of Traction Power of China(Grant No.2011TPL_T05) 

主　　题：wheel load vibration and sound radiation finite element method (FEM) boundary element method (BEM) laboratory test field test 

摘      要：The current researches of wheel vibration and sound radiation mainly focus on the low noise damped wheel. Compared with the traditional research, the relationship between the sound and wheel/rail contact is difficulty and worth studying. However, there are few studies on the effect of wheel load on wheel vibration and sound radiation. In this paper, laboratory test carried out in a semi-anechoic room investigates the effect of wheel load on wheel natural frequencies, damping ratios, wheel vibration and its sound radiation, The laboratory test results show that the vibration of the wheel and total sound radiation decrease significantly with the increase of the wheel load from 0 t to 1 t. The sound energy level of the wheel decreases by 3.7 dB. When the wheel load exceeds 1 t. the attenuation trend of the vibration and sound radiation of the wheel becomes slow. And the increase of the wheel load causes the growth of the wheel natural frequencies and the mode damping ratios. Based on the finite element method （FEM） and boundary element method （BEM）, a rolling noise prediction model is developed to calculate the influence of wheel load on the wheel vibration and sound radiation. In the calculation, the used wheel/rail excitation is the measured wheel/rail roughness. The calculated results show that the sound power level of the wheel decreases by about 0.4 dB when the wheel load increases by 0.5 t. The sound radiation of the wheel decreases slowly with wheel load increase, and this conclusion is verified by the field test. This research systematically studies the cffcct of wheel load on wheel vibration and sound radiation, gives the relationship between the sound and wheel/rail contact and analyzes the reasons, therefore, it provides a reference for further research.