Reliability analysis and evaluation of automotive seat angle-adjuster

ABSTRACT

The reliability of automobile seat angle-adjuster directly affects the safety of automobiles. In order to improve the reliability of automobile seat angle-adjuster, the structure of seat angle-adjuster is optimised by bench test. The bench test of seat angle-adjuster is carried out in the light of the standard of enterprise and the seat angle-adjuster structure is improved based on the experimental results. The finite-element model of seat angle-adjuster is established according to parameters of seat angle-adjuster and the finite-element analysis is presented under the boundary conditions. The validity of finite-element model of seat angle-adjuster is verified by comparing the results of bench test with finite-element analysis. The reliability model of seat angle-adjuster system is established on the basis of relationship of key components. The reliability analysis of seat angle-adjuster is put forward based on stress strength interference model and competing risk theory. These results provide a technical support for the promotion of automobile seat angle-adjuster.

KEYWORDS:

• Seat angle-adjuster
• reliability analysis and evaluation
• bench test
• stress and strength interference model
• competing risk

Acknowledgements

This work is supported by the National Natural Science Foundation of China (51675324).

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [grant number 51675324].

Notes on contributors

Xintian Liu

Xintian Liu is currently working as an associate professor of vehicle engineering at Shanghai University of Engineering Science (China) since 2007. His research area is focused on fatigue life prediction and evaluation, reliability design theory and vehicle system dynamics. He received his Ph.D. degree in power machinery and engineering from University of Shanghai for Science and Technology (China) in 2016. He received his master degree in vehicle engineering from Shanghai Jiaotong University (China) in 2007.

Lei Liu

Lei Liu is currently working as an engineer of Xuzhou Comprehensive Center for Inspection and Testing of Quality and Technical Supervision at Xuzhou (China) since 2017. His research area is reliability design theory. He received his master degree in vehicle engineering from Shanghai University of Engineering Science (China) in 2017.

Que Wu

Que Wu is pursuing his Master’s degree at Shanghai University of Engineering Science. His research area is focused on vehicle system dynamics and reliability design theory.

Xinjie Yuan

Xinjie Yuan is currently working as a senior engineer of Shanghai Jiaoyun Automobile Fine Blanking Co., Ltd. His research area is focused on product reliability design.

Hu Huang

Hu Huang is currently working as a senior engineer of vehicle engineering at Shanghai University of Engineering Science. His research area is focused on product reliability design.