交变配流阀控电液激振方法及振动特性分析

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摘要为探索实现主动激振的新途径，丰富电液激振方法的多样性，提出一种利用交变配流阀控制液压缸的电液激振方法。对交变配流阀进行结构设计并建立配流过程的数学模型，分析交变配流阀控电液激振系统的振动机理，结合Matlab数值计算获得交变配流阀的配流信号，建立交变配流阀控电液激振系统的AMESim仿真模型，研制交变配流阀控电液激振实验台进行实验测试，分析供油压力和电机转速对电液激振系统振动特性的影响规律。研究结果表明：供油压力、电机转速对电液激振系统振动特性具有明显影响，供油压力升高，电液激振系统的振动位移、加速度幅值分别提高了8.14%和5.57%；电机转速增加，电液激振系统的振动位移、加速度幅值分别降低了79.71%和58.21%；电液激振系统AMESim仿真和实验结果平均误差为8.72%，整体趋势基本一致，验证了仿真模型的正确性和激振方法的可行性。
关键词：交变配流阀；电液激振；振动特性；AMESim仿真；实验研究

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	赵国超1
	2
	李南奇1
	3
	王慧1
	2
	张建卓1
	2
	张长帅1

关键词 ：交变配流阀, 电液激振, 振动特性, AMESim仿真, 实验研究

Abstract：In order to explore a new way to realize active excitation and enrich the variety of electro-hydraulic vibration methods, an electro-hydraulic vibration method using an alternating distribution valve to control a hydraulic cylinder is proposed. The alternating distribution valve's structure is designed and the mathematical model of distribution process is established. The vibration mechanism of the electro-hydraulic vibration system controlled by the alternating distribution valve is analyzed. Furthermore, the alternating distribution valve's distribution signal is obtained by Matlab numerical calculation, and the AMESim simulation model of the electro-hydraulic vibration system controlled by the alternating distribution valve is established. Moreover, the alternating distribution valve controlled electro-hydraulic vibration bench is developed to test the influence of oil supply pressure and motor speed on the electro-hydraulic vibration system's vibration characteristics. The research results show that oil supply pressure and motor speed significantly affect the electro-hydraulic vibration system's vibration characteristics. With the oil supply pressure increase, the vibration displacement and acceleration of the electro-hydraulic vibration system increase by 8.14% and 5.57%, respectively.With the motor speed increase, the vibration displacement and acceleration of the electro-hydraulic vibration system decreased by 79.71% and 58.21%, respectively. The average error between AMESim simulation and experiment test of the electro-hydraulic vibration system is 8.72%. The overall trend is consistent, verifying the simulation model's correctness and the feasibility of this vibration method.
Key words：alternating distribution valve；electro-hydraulic vibrator exciter；vibration characteristics；AMESim simulation；experimental study

Key words： alternating distribution valve electro-hydraulic vibrator exciter vibration characteristics AMESim simulation experimental study

收稿日期: 2021-06-02 出版日期: 2022-09-28

引用本文:

赵国超1,2，李南奇1,3，王慧1,2，张建卓1,2，张长帅1. 交变配流阀控电液激振方法及振动特性分析[J]. 振动与冲击, 2022, 41(18): 143-149.
ZHAO Guochao1,2，LI Nanqi1,3，WANG Hui1,2，ZHANG Jianzhuo1,2，ZHANG Changshuai1. Electro-hydraulic vibration method and vibration characteristic analysis of the electro-hydraulic vibration system controlled by an alternating distribution valve. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(18): 143-149.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2022/V41/I18/143

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