Structural Parameter Optimization Design of Torsion Beam Semi-Independent Suspension Based on Multi-Island Genetic Algorithm

Abstract:

In order to reduce the variation of suspension parameters during wheel runout, andimprove the handling stability of the whole vehicle, a method for optimal design of Torsional beamsuspension structural parameters based on Multi-island genetic algorithm is proposed. Study on theMacpherson Front suspension of a car, based on the Euler's four-element method of multi-bodydynamics and the spatial analytic geometric transformation formula, the mathematical model ofTorsional beam suspension is derived in this paper, the reliability of the mathematical model isverified by the simulation analysis of the corresponding Adams model. On this basis, the degree ofsuspension performance affected by structure parameters is obtained by Sensitivity analysis. Finally,the optimization of suspension performance is realized by modifying the parameters by usingMulti-island genetic algorithm, which plays an important role in the stability and safety of thewhole vehicle.

• Periodical: Applied Mechanics and Materials (Volume 893)
• Pages: 109-115
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.893.109
• Online since: July 2019
• Authors: Peng Zhang, Hong Xin Wang*, Xiao Dong Zhang, Chang Yong Cao
• Keywords: Multi-Island Genetic Algorithm, Parameter Optimization, Sensitivity Analysis, Torsional Beam Suspension

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