橡胶弹簧结构强度分析及参数优化

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Abstract

The influence of the structural parameters of conical rubber spring on the stiffness, and the maximum principal strain range was studied, by using the Mooney-Rivlin hyperelastic constitutive model, and the structural parameters of the conical spring were optimized.Based on the orthogonal test method, the structure parameters of large radius R , groove depth h, surface angle θ and small radius r for structural strength factors, were carried out simulation test for conical spring.The experimental results show that the factor θ has greatest impact on the stiffness and the maximum principal strain range of the rubber spring, the influence degree of each factor on the stiffness is θ>r>R=h, the influence degree on the maximum principal strain range is θ>h>r>R.Based on a second-order response surface model and the Optimal Latin hypercube design method , the arc radius R, groove depth h, surface angle θ and small radius r as design variables, the spring stiffness as constraints, the maximum principal strain range as the objective function, the optimization mathematical model was established.The Multi-Island Genetic Algorithm(MIGA) was used to optimize the structure parameters of conical rubber spring, and the optimization results are substituted into the simulation model to verify.The error between the stiffness and the maximum principal strain range of test results and the optimal solution results were 1.75%, 3.57%, compared with the original structure, the maximum principal strain range was reduced 19.9%, which has a better optimization effect; the error between the test stiffness value and the optimal stiffness value was 4.71%, which meets the technical requirements.

Key words： rubber spring structural strength orthogonal test parameter optimization

Received: 07 December 2017 Published: 15 June 2019

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	Articles by authors
	DING Zhiping1
	ZENG Jiaxing1
	2
	LIN Sheng2
	HUANG Youjian2

Cite this article:

DING Zhiping1,ZENG Jiaxing1,2, et al. Structure strength analysis and parameter optimization of rubber spring[J]. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(12): 246-251.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2019/V38/I12/246

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