Research on Dynamic Response Test of Subgrade Vibrator for High-speed Railway

7th Annual International Conference on Materials Science and Engineering

Qian, Ruixue^1^2 ; Yi, Jiangang^1 ; Chen, Xinyuan^3

Hubei Key Laboratory of Industrial Fume and Dust Pollution Control, Jianghan University, Wuhan

430056, China^1

Wuhan Airport Development Group Co. Ltd, Wuhan

430081, China^2

College of Machinery and Automation, Wuhan University of Science and Technology, Wuhan

430081, China^3

关键词: Dynamic response model;    High;    speed railways;    High-frequency excitation;    Inertial vibration;    Vibration amplitude;    Vibration forces;    Vibration frequency;    Working performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/562/1/012023/pdf
DOI  :  10.1088/1757-899X/562/1/012023

来源: IOP

【 摘 要 】

During subgrade dynamic response test for high-speed railway, light weight inertial vibration with high frequency excitation might lose impact force caused by suspension. A structural optimization approach for inertial vibration is proposed to solve the problem. The dynamic response model of subgrade vibrator is built by analyzing the influences of vibration frequency, static weight, vibration amplitude, phase and impact force. The result shows the ratio of static weight and eccentric vibration force is the main factor that influences the vibrator working performance. Through studying the relationships of the parameters, the recommended parameters for the vibrator with lighter weight are simulated and tested, which are valuable for optimal design of inertia vibrator.