电磁阀连续可变阻尼减振器的建模与仿真

摘要

In view of the structural characteristics of solenoid valve type continuously variable damping shock ab-sorber,the working principle and characteristics of valve system are analyzed.Based on hydraulic theory,the mathe-matical model of shock absorber is established.MATLAB software simulation analysis is used to obtain the velocity characteristics and work characteristics of shock absorber simulation and test with different electromagnetic throttle area.Comparison between simulation data and experimental data verified the correctness of the model.Through the simulation analysis of the key parameters of shock absorber,the effects of throttle hole area of electromagnetic valve,spring preload of restoring valve,fixed throttle hole width of restoring valve and equivalent thickness of the valve plate on the damping force of shock absorber were obtained,which provides a reference for the study of elec-tromagnetic valve type continuous variable damping shock absorber.%针对电磁阀型连续可变阻尼减振器的结构特点，分析该减振器的工作原理与阀系特征。以液压理论为基础建立该减振器的数学模型。利用MATLAB软件进行仿真分析，分别得到不同电磁可变节流孔面积时该减振器仿真与试验的速度特性图与示功特性图。仿真数据与试验所得数据相比较，验证模型的正确性。通过对该减振器关键参数仿真分析，得到电磁阀的可变节流孔的面积、复原阀的弹簧预紧力、复原阀的固定节流孔宽度以及复原阀的阀片当量厚度等参数对该减振器阻尼力的影响。为电磁阀型连续可变阻尼减振器的研究提供了一定的参考依据。