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Dynamic Response of a Semiactive Suspension System with Hysteretic Nonlinear Energy Sink Based on Random Excitation by means of Computer Simulation
Complexity ( IF 2.3 ) Pub Date : 2020-09-17 , DOI: 10.1155/2020/3181423
Hui Chen 1 , Wuyin Jin 1
Affiliation  

This paper aims to investigate the property and behavior of the hysteretic nonlinear energy sink (HNES) coupled to a half vehicle system which is a nine-degree-of-freedom, nonlinear, and semiactive suspension system in order to improve the ride comfort and increase the stability in shock mitigation by using the computer simulation method. The HNES model is a semiactive suspension device, which comprises the famous Bouc–Wen (B-W) model employed to describe the force produced by both the purely hysteretic spring and linear elastic spring of potentially negative stiffness connected in parallel, for the half vehicle system. Nine nonlinear motion equations of the half vehicle system are derived in terms of the seven displacements and the two dimensionless hysteretic variables, which are integrated numerically by employing the direct time integration method for studying both the variables of vertical displacements, velocities, accelerations, chassis pitch angle, and the ride comfort and driver safety, respectively, based on the bump and random road inputs of the pseudoexcitation method as excitation signal. Simulation results show that, compared with the HNES model and the magnetorheological (MR) model coupled to the half vehicle system, the ride comfort and stability have been evidently improved. A successful validation process has been performed, which indicated that both the ride comfort and driver safety properties of the HNES model coupled to half vehicle significantly improved.

中文翻译:

迟滞非线性蓄能器半主动悬架基于随机激励的计算机仿真动态响应

本文旨在研究与半车辆系统耦合的磁滞非线性能量吸收器(HNES)的特性和行为,该半车辆系统是九自由度,非线性和半主动悬架系统,以提高行驶舒适性并增加通过计算机仿真方法来减轻冲击的稳定性。HNES模型是一种半主动悬挂装置,包括著名的Bouc–Wen(BW)模型,用于描述半车辆系统平行并联的纯滞后弹簧和潜在负刚度的线性弹性弹簧产生的力。根据七个位移和两个无量纲磁滞变量,得出了半车辆系统的九个非线性运动方程,通过基于伪激励方法的颠簸和随机道路输入,采用直接时间积分方法分别对垂直位移,速度,加速度,底盘俯仰角以及乘坐舒适性和驾驶员安全性两个变量进行数值积分作为激励信号。仿真结果表明,与半车辆系统耦合的HNES模型和磁流变(MR)模型相比,乘坐舒适性和稳定性得到了明显改善。已经执行了成功的验证过程,这表明耦合到半车辆的HNES模型的乘坐舒适性和驾驶员安全特性均得到了显着改善。分别基于伪励磁方法的颠簸和随机道路输入作为励磁信号来确定行驶舒适性和驾驶员安全性。仿真结果表明,与半车辆系统耦合的HNES模型和磁流变(MR)模型相比,乘坐舒适性和稳定性得到了明显改善。已经执行了成功的验证过程,这表明耦合到半车辆的HNES模型的乘坐舒适性和驾驶员安全特性均得到了显着改善。分别基于伪励磁方法的颠簸和随机道路输入作为励磁信号来确定行驶舒适性和驾驶员安全性。仿真结果表明,与半车辆系统耦合的HNES模型和磁流变(MR)模型相比,乘坐舒适性和稳定性得到了明显改善。已经执行了成功的验证过程,这表明耦合到半车辆的HNES模型的乘坐舒适性和驾驶员安全特性均得到了显着改善。
更新日期:2020-09-18
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