@inproceedings{b6b1b23cabaa458c99effa556709ffe5,
title = "Stiffness Damping Sensitivity Analysis and Integrated Modeling of Electro-Hydraulic Servo Load Simulator for High-Speed Rail Active Shock Absorber",
abstract = "The Electro-Hydraulic Load Simulator (EHLS) plays a critical role in testing the dynamic and fatigue performance of Active Shock Absorbers (ASA). Nevertheless, challenges arising from the ASA actively tunable stiffness and damping characteristics adversely affect the loading accuracy and control stability. This research develops an integrated model of the coupling EHLS and ASA, and analyzes the effects of variations in stiffness and damping characteristics on the dynamic performance and stability margin of the EHLS. The integrated model is developed to obtain the open-loop transfer function from the controller output to the EHLS system response. Based on the integrated model, a numerical analysis model was constructed using MWORKS simulation software. The effects of the stiffness damping characteristics of the ASA on EHLS system performance — including crossover frequency, stability margin — were analyzed under conditions of individually and simultaneously varying stiffness and damping parameters. The simulation results demonstrate that system performance exhibit differential sensitivity to variations in damping and stiffness characteristics. The result of this research offer practical guidance for the engineering design of high-performance EHLS systems aligned with ASA characteristics.",
keywords = "Crossover frequency, Stability margin, Stiffness damping sensitivity analysis, The Electro-hydraulic load simulator",
author = "Liqun Fang and Heng Yang and Zhichao Tian and Zhiyong Qu and Junwei Han",
note = "Publisher Copyright: {\textcopyright} The Chinese Mechanical Engineering Society 2027.; International Conference on Mechanical Design, ICMD 2025 ; Conference date: 09-05-2025 Through 11-05-2025",
year = "2027",
doi = "10.1007/978-981-95-7904-4\_47",
language = "英语",
isbn = "9789819579037",
series = "Mechanisms and Machine Science",
publisher = "Springer Science and Business Media B.V.",
pages = "668--682",
editor = "Jianrong Tan and Zhenyu Liu and Weifei Hu",
booktitle = "Advances in Mechanical Design - Proceedings of The 2025 International Conference on Mechanical Design ICMD 2025",
address = "荷兰",
}