Analysis of Characteristics and Structure Optimization of Anti-rolling Torsion Bar

Dong, Yahong; Yue-jin, Shang

doi:10.1007/978-981-32-9941-2_12

Cited by 1 publication

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“…At present, relevant scholars for railway vehicle anti-roll torsion bar stiffness theoretical calculation method to explore are in the initial stage, the proposed calculation method is not comprehensive enough to consider the factors, the results of the calculation and the actual value of the error is larger. Dong and Shang (2020) derived the stiffness equation of the anti-roll torsion bar in detail. In the optimization process, finite element method is utilized to calculate the stiffness and strength of the anti-rolling torsion bar under two loads, while topology optimization and parametric analysis are carried out for the torsion bar arm.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization design of anti-roll torsion bar using improved beluga whale optimization algorithm

Li,

Chen,

Hou

et al. 2023

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PurposeThis study aims to reduce the redundant weight of the anti-roll torsion bar brought by the traditional empirical design and improving its strength and stiffness.Design/methodology/approachBased on the finite element approach coupled with the improved beluga whale optimization (IBWO) algorithm, a collaborative optimization method is suggested to optimize the design of the anti-roll torsion bar structure and weight. The dimensions and material properties of the torsion bar were defined as random variables, and the torsion bar's mass and strength were investigated using finite elements. Then, chaotic mapping and differential evolution (DE) operators are introduced to improve the beluga whale optimization (BWO) algorithm and run case studies.FindingsThe findings demonstrate that the IBWO has superior solution set distribution uniformity, convergence speed, solution correctness and stability than the BWO. The IBWO algorithm is used to optimize the anti-roll torsion bar design. The error between the optimization and finite element simulation results was less than 1%. The weight of the optimized anti-roll torsion bar was lessened by 4%, the maximum stress was reduced by 35% and the stiffness was increased by 1.9%.Originality/valueThe study provides a methodological reference for the simulation optimization process of the lateral anti-roll torsion bar.

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Section: Introductionmentioning

confidence: 99%