Simulation Study on Static and Dynamic Characteristics of Electromagnet for Electro-Hydraulic Proportional Valve Used in Shock Absorber

IEEE Access

Van Xo Nguyen¹  Dengshuai Wang²  Xinjian Guo²  Rui Zhou²  Jun Ke²  Fangwei Xie³ 

[1]Institute of Mechanical and Electrical Engineering, Hanoi University of Mining and Geology, Hanoi, Vietnam

[2]School of Mechanical Engineering, Jiangsu University, Zhenjiang, China

[3]School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, China

关键词: Proportional electromagnet;    displacement-force characteristics;    magnetic circuit model;    shock absorber;   

DOI  :  10.1109/ACCESS.2020.2976713

来源: DOAJ

【 摘 要 】

In order to improve the performance of the electromagnet for electro-hydraulic proportional valve used in shock absorber, the static and dynamic characteristics of the proportional electromagnet are simulated and analyzed, which provides theoretical basis for the design and optimization of structural parameters of the proportional electromagnet. In this paper, the magnetic circuit model and finite element simulation model of the proportional electromagnet used in shock absorber are established, and the Ansoft software is applied to analyze the influence of the key structural parameters of the proportional electromagnet on static output force and dynamic characteristics. The results demonstrate that with the increase of the depth of basin mouth, the effective travel of the proportional electromagnet increases, and the mean value of the electromagnetic force in the working range decreases. The larger the radial clearance between armature and guide sleeve is, the smaller the electromagnetic force in the effective travel is. When the depth of the basin mouth is 3.9 mm, the slope of the magnetic isolation ring is 35°, the chamfer length of the convex platform is 0.2 mm, and the radial clearance is 0.3 mm, the proportional electromagnet has good displacement-force and current-force characteristics. According to the further transient analysis, it is found that when the voltage amplitude is 24 V, the rise time of the electromagnetic force under step excitation signal is about 40 ms.

【 授权许可】

Unknown