Stress-strain analysis and optimization design of diesel engine connecting rod based on multi-objective optimization

Xiuxiang Zhang; Zhongsheng Cui

doi:10.1117/12.2652438

10 November 2022 Stress-strain analysis and optimization design of diesel engine connecting rod based on multi-objective optimization

Xiuxiang Zhang, Zhongsheng Cui

Author Affiliations +

Proceedings Volume 12331, International Conference on Mechanisms and Robotics (ICMAR 2022); 123312F (2022) https://doi.org/10.1117/12.2652438
Event: International Conference on Mechanisms and Robotics (ICMAR 2022), 2022, Zhuhai, China

Abstract

As a key component of a diesel engine, the connecting rod will bear the reciprocating stress of tension and compression during operation, and its performance is very important for the safe operation of the diesel engine. This paper uses the finite element analysis software ANSYS to analyze the stress and deformation of the designed connecting rod at the top dead center of the intake stroke and the top dead center of the work stroke. Through the method of multi-objective optimization, the quality, stress and deformation are improved and optimized at the same time. The results show that: 1) The designed connecting rod meets the requirements of strength and deformation; 2) The mass of the optimized connecting rod is reduced by about 20%; 3) The stress and deformation of the top dead center of the intake stroke are respectively reduced by 33.8% and 42.2%; 4) The stress and deformation of the top dead center working condition of the work stroke have been reduced by 29.0% and 45.3%.

Citation Download Citation

Xiuxiang Zhang and Zhongsheng Cui "Stress-strain analysis and optimization design of diesel engine connecting rod based on multi-objective optimization", Proc. SPIE 12331, International Conference on Mechanisms and Robotics (ICMAR 2022), 123312F (10 November 2022); https://doi.org/10.1117/12.2652438

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