液电式馈能油气弹簧减振器力学特性仿真与研究
袁野1，张旭2，赵韬硕2，张春生2，徐龙2，刘震涛1
（1.浙江大学 动力机械及车辆工程研究所，浙江 杭州 310027；2.中国北方车辆研究所，北京 100072）
摘要：基于一种适用于特种车辆的液电式馈能油气弹簧减振器，通过理论分析建立其数学模型和MATLAB/Simulink仿真模型，并分析不同因素对其力学特性的影响规律。首先以流体力学理论和气体状态方程建立减振器粘性阻尼力模型，其次设计一套馈能电机控制电路，结合液压马达工作原理建立减振器电磁阻尼模型，最后分析外界激励频率、液压马达排量和占空比对减振器示功特性的影响。结果显示，减振器阻尼力随外界激励频率的增大而增大，且频率较大时阻尼力趋于过大；阻尼力随液压马达排量的增大而减小，且小排量时对阻尼力影响较大；阻尼力随占空比的增大而增大，但占空比较大时对阻尼力影响较小。
关键词：液压马达；液压模块；油气弹簧；动力学特性
中图分类号：U461.5+2；TB24 文献标志码：A doi：10.3969/j.issn.1006-0316.2024.06.004
文章编号：1006-0316 (2024) 06-0022-08
Simulation and Analysis of Mechanical Characteristics of Hydrodynamic Energy-Fed Oil-Gas Spring Damper
YUAN Ye1，ZHANG Xu2，ZHAO Taoshuo2，ZHANG Chunsheng2，XU Long2，LIU Zhentao1
( 1. Power Machinery and Vehicular Engineering Institute, Zhejiang University, Hangzhou 310027, China;2. China North Vehicle Research Institute, Beijing 100072, China )
Abstract：Based on a hydrodynamic energy-fed oil-gas spring damper for special vehicles, the mathematical model and MATLAB/Simulink simulation model are established through theoretical analysis, and the influence law of different factors on its mechanical characteristics is analyzed. Firstly, the viscous damping force model of the damper is established by hydrodynamic theory and gas equation of state. Secondly, a set of feeder motor control circuit is designed, and the electromagnetic damping model of the damper is established based on the working principle of hydraulic motor. Finally, the influence of external excitation frequency, hydraulic motor displacement and duty cycle on the work characteristics of the damper is analyzed. The results show that the damper damping force increases with the increase of external excitation frequency, and the damping force tends to be excessively large when the frequency is larger; the damping force decreases with the increase of hydraulic motor displacement, and has a greater impact on the damping force when the displacement is small; the damping force increases with the increase of duty cycle, but has a smaller impact on the damping force when the duty cycle is larger.
Key words：hydraulic motor；hydraulic module；oil-gas spring；dynamic characteristic
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收稿日期：2023-06-30
作者简介：袁野（1998－），男，安徽合肥人，硕士研究生，主要研究方向为汽车及零部件可靠性技术及悬架动力学，E-mail：22027002@zju.edu.cn；刘震涛（1971－），男，山东德州人，博士，教授，主要研究方向为汽车及零部件可靠性和轻量化技术及车辆热管理技术。
（1.浙江大学 动力机械及车辆工程研究所，浙江 杭州 310027；2.中国北方车辆研究所，北京 100072）
摘要：基于一种适用于特种车辆的液电式馈能油气弹簧减振器，通过理论分析建立其数学模型和MATLAB/Simulink仿真模型，并分析不同因素对其力学特性的影响规律。首先以流体力学理论和气体状态方程建立减振器粘性阻尼力模型，其次设计一套馈能电机控制电路，结合液压马达工作原理建立减振器电磁阻尼模型，最后分析外界激励频率、液压马达排量和占空比对减振器示功特性的影响。结果显示，减振器阻尼力随外界激励频率的增大而增大，且频率较大时阻尼力趋于过大；阻尼力随液压马达排量的增大而减小，且小排量时对阻尼力影响较大；阻尼力随占空比的增大而增大，但占空比较大时对阻尼力影响较小。
关键词：液压马达；液压模块；油气弹簧；动力学特性
中图分类号：U461.5+2；TB24 文献标志码：A doi：10.3969/j.issn.1006-0316.2024.06.004
文章编号：1006-0316 (2024) 06-0022-08
Simulation and Analysis of Mechanical Characteristics of Hydrodynamic Energy-Fed Oil-Gas Spring Damper
YUAN Ye1，ZHANG Xu2，ZHAO Taoshuo2，ZHANG Chunsheng2，XU Long2，LIU Zhentao1
( 1. Power Machinery and Vehicular Engineering Institute, Zhejiang University, Hangzhou 310027, China;2. China North Vehicle Research Institute, Beijing 100072, China )
Abstract：Based on a hydrodynamic energy-fed oil-gas spring damper for special vehicles, the mathematical model and MATLAB/Simulink simulation model are established through theoretical analysis, and the influence law of different factors on its mechanical characteristics is analyzed. Firstly, the viscous damping force model of the damper is established by hydrodynamic theory and gas equation of state. Secondly, a set of feeder motor control circuit is designed, and the electromagnetic damping model of the damper is established based on the working principle of hydraulic motor. Finally, the influence of external excitation frequency, hydraulic motor displacement and duty cycle on the work characteristics of the damper is analyzed. The results show that the damper damping force increases with the increase of external excitation frequency, and the damping force tends to be excessively large when the frequency is larger; the damping force decreases with the increase of hydraulic motor displacement, and has a greater impact on the damping force when the displacement is small; the damping force increases with the increase of duty cycle, but has a smaller impact on the damping force when the duty cycle is larger.
Key words：hydraulic motor；hydraulic module；oil-gas spring；dynamic characteristic
———————————————
收稿日期：2023-06-30
作者简介：袁野（1998－），男，安徽合肥人，硕士研究生，主要研究方向为汽车及零部件可靠性技术及悬架动力学，E-mail：22027002@zju.edu.cn；刘震涛（1971－），男，山东德州人，博士，教授，主要研究方向为汽车及零部件可靠性和轻量化技术及车辆热管理技术。
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