Abstract
Through fracture analysis, it is confirmed that the cracking of the exhaust pipe heat shield of the exhaust system is thermal fatigue cracking. In this paper, the finite element analysis of the structure is carried out in detail. The thermo-solid coupling analysis shows that the maximum equivalent plastic strain amplitude is located at the cracked weld of the heat shield. Based on this, the structure of the heat shield and the welding fixed position are optimized. The experimental verification shows that the optimized structure meets the design requirements.
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References
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© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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Dai, P., Li, T., Chen, X., Zhang, X., Wang, C., Zhou, S. (2022). Analysis of Cracking Reason and Optimization Design of the Heat Shield for an Automobile Exhaust Pipe. In: Proceedings of China SAE Congress 2020: Selected Papers. Lecture Notes in Electrical Engineering, vol 769. Springer, Singapore. https://doi.org/10.1007/978-981-16-2090-4_25
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DOI: https://doi.org/10.1007/978-981-16-2090-4_25
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Online ISBN: 978-981-16-2090-4
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