温变对高速列车一系悬挂高频传振特性的影响  

Influence of Temperature Variation on High-frequency Vibration Transmission Characteristics of the Primary Suspensions of High-speed Trains

作　　者：刘浩楠 王奇 韩健 关庆华[1] 肖新标[1] LIU Haonan;WANG Qi;HAN Jian;GUAN Qinghua;XIAO Xinbiao(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China;School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学牵引动力国家重点实验室,成都610031 [2]西南交通大学机械工程学院,成都610031

出　　处：《噪声与振动控制》2022年第2期143-148,共6页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(U1934203);科技部常规性科技援助项目(KY201701001)。

摘　　要：为研究高速列车悬挂件温变特性及其对转向架高频振动特性的影响,对我国某型高速列车主要一系悬挂件进行了温变(-30℃~30℃)试验。通过试验得到各悬挂件在不同温度下的高频传递特性,结果表明,含橡胶悬挂件及液压减振器件高频传递特性受温度变化影响显著。基于试验结果,采用全有限元方法,建立悬挂件温变特性模型以及转向架模型,进而研究温度变化对转向架振动及一系悬挂隔振性能的影响。研究表明,随着温度降低,转向架轴箱和构架加速度总值呈现升高趋势,一系悬挂隔振性能有所提高,受温度影响,轴箱、构架加速度级总值最大变化量分别为13.4 dB、3.6 dB。研究有助于理解和掌握转向架振动的温变规律,可为高速列车减振降噪提供科学依据。The temperature varying characteristics of suspension components of high-speed trains and their influence on the high frequency vibration characteristics of bogies are studied. A temperature variation(-30℃-30℃) test on primary suspension components of a high-speed train is carried out. And the high-frequency transmission characteristics of suspension components at different temperatures are obtained through the test. The results show that the high frequency transfer characteristics of rubber components and hydraulic shock absorbers are obviously affected by temperature change. Based on test results, the models of temperature variation characteristics of each suspension component and the model of the bogie are established by using the full finite element method. And then the influence of temperature variation on bogie vibration and the vibration isolation performance of the primary suspension is studied. The study shows that the total acceleration value of bogie frame and axle box increases with the decrease of temperature, and the vibration isolation performance of the primary suspension system is improved. Under the influence of temperature, the maximum changes of the total values of the axle box and frame acceleration levels are 13.4 d B and 3.6 dB respectively. This research is helpful to understanding and mastering the temperature change law of bogie vibration, and can provide a scientific basis for making vibration and noise reduction measures of high-speed trains.

关 键 词：振动与波 悬挂件 温变特性 高频振动特性 温变模型 转向架 隔振性能 

分 类 号：U270.1[机械工程—车辆工程]