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5 June 2024 Fatigue life analysis of air conditioning compressor-piping system based on Miner damage accumulation theory with acceleration factor
Lu Wang, Qiansheng Fang, Lifu Gao, Huibin Cao, Yuxiang Sun
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Proceedings Volume 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024); 131633W (2024) https://doi.org/10.1117/12.3030507
Event: International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 2024, Xi'an, China
Abstract
The air conditioning compressor-piping system operates under varying load conditions for an extended period, leading to fatigue damage in the piping, which can fail the entire air conditioning system. Therefore, fatigue life analysis of the air conditioning compressor-piping system is crucial in its overall development. To more accurately estimate the fatigue life of the air conditioning compressor-piping system under varying conditions, a fatigue life prediction method is proposed. This method involves loading the identified compressor load time history into a finite element model in ANSYS, conducting time history analysis to determine the fatigue critical nodes, obtaining stress spectra and fatigue characteristic curves (S-N curves) for these critical nodes, and predicting the fatigue life using the three-parameter rainflow counting method and the Miner cumulative damage theory based on acceleration factors. Additionally, strain signals are collected in the vicinity of the critical nodes to calculate fatigue damage. Through experimentation and simulation, the analysis results reflect the fatigue life of the air conditioning compressor-piping system within a certain margin of error.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Lu Wang, Qiansheng Fang, Lifu Gao, Huibin Cao, and Yuxiang Sun "Fatigue life analysis of air conditioning compressor-piping system based on Miner damage accumulation theory with acceleration factor", Proc. SPIE 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 131633W (5 June 2024); https://doi.org/10.1117/12.3030507
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KEYWORDS
Material fatigue
Vibration
Pipes
Reliability
Analytical research
Engineering
Accelerated life testing
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