Damping Variation Effects in Vehicle Semi-active MR Suspensions: A Stress Concentration Analysis

被引：5

作者：

Vivas-Lopez, Carlos A. ^{[1
]}

Tudon-Martinez, Juan C. ^{[1
]}

Estrada-Vela, Alfonso ^{[2
]}

de Jesus Lozoya-Santos, Jorge ^{[2
]}

Morales-Menendez, Ruben ^{[2
]}

机构：

[1] Univ Monterrey, Sch Engn & Technol, San Pedro Garza Garcia, Mexico

[2] Tecnol Monterrey, Sch Engn & Sci, Monterrey, Mexico

来源：

FRONTIERS IN MATERIALS | 2021年 / 8卷

关键词：

magneto-rheological damper; finite element analyses; semi-active suspension; quarter of vehicle; vehicle dynamics; FATIGUE ANALYSIS; DESIGN;

D O I：

10.3389/fmats.2021.590390

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Semi-active vehicle suspensions are used to improve the limited comfort performance of passive vehicle suspensions by varying the damping coefficient according to a control strategy. These benefits have been usually studied in a transient and frequency domain, but rarely in a multi-body dynamic analysis considering the mechanical components and their joints. In this study, the controllability effects of a magnetorheological (MR) damper on the mechanical components of a McPherson automotive suspension are investigated using a stress concentration analysis. Finite element analysis was used with a Quarter of Vehicle (QoV) suspension model configured with an MR damper, and then compared with the passive damper. The simulation results show that an SA damper in the suspension not only improves the dynamic behavior of a road vehicle, but it also has the positive effect of reducing the stress concentrations in a critical suspension element, the knuckle, that are generated by high amplitude road profiles such as rough roads or dangerous street bumps.

引用

页数：16

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