Finite Element Analysis and Optimization Design of Combined Vehicle Suspension Girder Lateral Stabilizer Bar Bushing

Abstract

The stabilizer bar bushing as one of the most important parts of the automobile shock absorber, because of its complex structure using the rubber, and the rubber has nonlinearity and incompressibility, therefore using traditional numerical analysis method optimization calculation is very difficult. With the rapid development of the rapid development of computer aided engineering and finite element method, the numerical analysis technique to solve the mechanical problems of rubber materials becomes possible. This paper mainly introduces the ABAQUS finite element analysis software for vehicle rubber elastic element stiffness analysis and optimization design process, using Mooney-Rivlin equation, four kinds of design model of assembly interference and three directions static stiffness analysis, and then according to the stress strain results were optimized, we design a mechanical structure is the better performance of the liner model. The results show that the finite element analysis technology optimization of stabilizer bar bushing design method is feasible.

Stiffness Analysis of the Rubber Bushings of Macpherson and Double Wishbone Suspensions

“…A significant portion of publications are focused on the design and optimization of rubber bushings [1]- [5]. Various analytical [3], [6], [7], [8] and genetic algorithms [1] are primarily used for design, aimed at determining optimal geometric parameters, with particular attention to sought-after characteristics of radial, axial, and torsional stiffness.…”

“…Various software products for Finite Element Analysis (FEA) are utilized in the design and determination of stiffness, with simulations analyzing stress and deformation changes [1]- [5], [8]- [11].…”

“…Publications employing FEA also explore the hyperelastic behavior of rubber (elastomers) [7,12], utilizing well-known constitutive hyperelastic models such as Mooney-Rivlin [1], [5], [9]- [11], Marlow [9], Ogden [2,10], and Neo Hooke and Yeoh in [11]. Comparison between constitutive hyperelastic models in FEA and experimental tests for rubber with varying hardness is presented in [10], while theories and execution of non-linear finite element analysis of elastomers and mechanical characterization testing of composite materials are discussed in [7], [12]- [14].…”