Finite Element Modeling and Structural Parameter Optimization of Ball Hinge Rubber for Commercial Vehicle Thrust Rod
DOI: 10.23977/jemm.2024.090203 | Downloads: 10 | Views: 338
Author(s)
Wang Shuai 1, Luo Kai 2, Shen Guowei 3, Gao Sasa 1
Affiliation(s)
1 College of Mechanical & Electrical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
2 Technical Quality Department, Xi'an Oude Rubber & Plastic Technology Co, Ltd, Xi'an, 710201, China
3 Technology Center, Xi'an Deshi Vehicle Components Co, Ltd, Xi'an, 710000, China
Corresponding Author
Gao SasaABSTRACT
When the thrust rod of commercial vehicles is under the ultimate load, rubber extrusion or even cracks may occur in the rubber layer, which affects the operation safety of the vehicle. In order to reduce the failure probability of the thrust rod and extend its service life, this paper simulated the working condition of the thrust rod ball-hinged rubber by finite element method, revealed the relationship between the maximum stress of the thrust rod ball-hinged rubber and its structure, and proposed an optimization scheme. Firstly, based on the stress-strain data of rubber material, the parameters of elastoelastic constitutive model of rubber material were fitted in ABAQUS software. Secondly, the finite element model of ball hinge rubber was established to reduce the maximum working stress of rubber layer by changing the parameters of rubber layer thickness and its edge shape, so as to extend the service life of thrust rod. The results show that reducing the thickness of the rubber layer can effectively reduce the maximum stress of the rubber layer, but the stress concentration is not significantly improved, and the crack spreads to the inner surface of the rubber layer, and changing the edge shape of the rubber layer to convex, not only can greatly reduce the maximum stress, but also effectively alleviate the stress concentration, but the rubber layer edge of the outer surface of the tear. Finally, the optimal combination scheme of the two structural parameters was determined by orthogonal test, which greatly reduced the maximum stress and improved the stress concentration, reduced the crack propagation length, and no tearing occurred on the inner and outer surfaces of the rubber layer. The effectiveness of the orthogonal experiment optimization scheme is proved, which can lay a theoretical foundation for the optimization design of thrust rod ball hinge rubber.
KEYWORDS
Rubber ball joint; Constitutive model; Finite element analysis; Parameter optimization; Crack propagationCITE THIS PAPER
Wang Shuai, Luo Kai, Shen Guowei, Gao Sasa, Finite Element Modeling and Structural Parameter Optimization of Ball Hinge Rubber for Commercial Vehicle Thrust Rod. Journal of Engineering Mechanics and Machinery (2024) Vol. 9: 18-28. DOI: http://dx.doi.org/10.23977/jemm.2024.090203.
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