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A suspension system with quasi-zero stiffness characteristics and inerter nonlinear energy sink
Journal of Vibration and Control ( IF 2.3 ) Pub Date : 2020-11-25 , DOI: 10.1177/1077546320972904
You-cheng Zeng 1 , Hu Ding 1 , Rong-Hua Du 2 , Li-Qun Chen 1
Affiliation  

In this article, a novel vibration control scheme of suspension systems is proposed. It combines the advantages of quasi-zero stiffness isolator, nonlinear energy sink absorber, and inerter. This proposed scheme can achieve low transmissibility, low amplitude, and low additional weight and resolve the conflict between riding comfort and handling stability. Strong nonlinear vibration equations of a quarter-vehicle suspension system are established. It also presents the detailed process of high-order harmonic approximation to obtain steady-state responses. Moreover, approximate solutions are validated by a numerical method. Furthermore, based on riding comfort and handling stability, the following four suspension systems are evaluated and compared, namely, 2-degree-of-freedom quarter-vehicle model, 2-degree-of-freedom quarter-vehicle with quasi-zero stiffness isolator, 2-degree-of-freedom quarter-vehicle with inerter-nonlinear energy sink absorber, and 2-degree-of-freedom quarter-vehicle integrated control scheme with quasi-zero stiffness and inerter-nonlinear energy sink. It is found that the integrated control scheme with quasi-zero stiffness and inerter-nonlinear energy sink can significantly improve the riding comfort and handling stability at the same time. In addition, the effects of system parameters are studied carefully. The results show that based on the reasonable design of the control system parameters, better riding comfort and handling stability can be obtained. In short, this article provides a theoretical basis for integrating quasi-zero stiffness isolators and inerter-nonlinear energy sink absorbers to improve the riding comfort and handling stability.



中文翻译:

具有准零刚度特性和非线性惯性吸收体的悬架系统

本文提出了一种新型的悬架振动控制方案。它结合了准零刚度隔离器,非线性能量吸收吸收器和惯性器的优点。提出的方案可以实现低透射率,低振幅和低附加重量,并解决乘坐舒适性和操纵稳定性之间的矛盾。建立了四分之一车辆悬架系统的强非线性振动方程。它还介绍了获得高阶谐波近似以获得稳态响应的详细过程。此外,通过数值方法验证了近似解。此外,根据乘坐舒适性和操纵稳定性,对以下四个悬架系统进行了评估和比较,即2自由度四分之一车辆模型,具有准零刚度隔离器的2自由度四分之一车辆,具有惯性非线性能量吸收器的2自由度四分之一车辆和具有2自由度的四自由度四分之一车辆集成控制方案准零刚度和惯性非线性能量吸收器。结果表明,具有准零刚度和惯性非线性能量吸收的集成控制方案可以显着提高乘坐舒适性和操纵稳定性。此外,还仔细研究了系统参数的影响。结果表明,在合理设计控制系统参数的基础上,可以获得较好的乘坐舒适性和操纵稳定性。简而言之,

更新日期:2020-11-25
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