Fansong Li , Haokun Qin , Xiaolong Ma , Huiwen Pang , Ye Song , Pingbo Wu
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引用次数: 0
Abstract
Experimental methods remain essential for studying high-frequency vibrations of railway vehicles where numerical modeling proves inadequate due to system complexity. The traditional method of using hydraulic actuator to test the vibration transmission of suspension systems typically focuses on frequencies within 10 Hz, and mainly targets individual suspension component, which cannot directly achieve high-frequency vibration transmissibility of vehicles in situ. Consequently, this paper develops a polygonal roller-based high-frequency vibration test rig that enables in-situ measurement of vibration transmission characteristics in vehicle suspension systems, while simultaneously considering coupled vibration effects between structural modes and the suspension system. Furthermore, a data analysis method is proposed to calculate vibration transmissibility using the slip root mean square values. The experimental results verify the method’s capability in quantitative measurement of high-frequency vibration transmissibility, which has been applied to optimize suspension component selection. The findings could effectively support high-frequency performance optimization for suspension systems and structural modes.
期刊介绍:
Contributions are invited on novel achievements in all fields of measurement and instrumentation science and technology. Authors are encouraged to submit novel material, whose ultimate goal is an advancement in the state of the art of: measurement and metrology fundamentals, sensors, measurement instruments, measurement and estimation techniques, measurement data processing and fusion algorithms, evaluation procedures and methodologies for plants and industrial processes, performance analysis of systems, processes and algorithms, mathematical models for measurement-oriented purposes, distributed measurement systems in a connected world.