Composite pistons are often used in heavy duty diesel engines due to its good reliability and durability. Owing to the alternating loads, fretting wear usually happens on the mating surfaces between piston crown and skirt. In this paper, a fretting wear finite element model is developed to analyze the mating surface wear of composite piston of heavy duty diesel engine. The fretting wear model predicts the wear depth evolution for each working cycle based on Archard model and mesh updating technique, which is validated by previous pin and disk contact experiments. The wear evolution of the top contact surface of piston skirt is simulated according to engine operating condition, and fretting wear life is estimated by the decreasing process of crown-skirt connecting bolt preload. Effects of the shape of piston skirt top surface is also evaluated. In the end, the rationality of fretting wear model is validated by durability tests of diesel engine.
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ASME 2018 Internal Combustion Engine Division Fall Technical Conference
November 4–7, 2018
San Diego, California, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
978-0-7918-5199-9
PROCEEDINGS PAPER
Numerical Study on Fretting Wear of Mating Surface Between Piston Crown and Skirt in Heavy Duty Diesel Engine Available to Purchase
Yi Wang,
Yi Wang
Shanghai Jiao Tong University, Shanghai, China
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Limin Wu,
Limin Wu
Shanghai Marine Diesel Engine Research Institute, Shanghai, China
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Shuo Liu,
Shuo Liu
Shanghai Jiao Tong University, Shanghai, China
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Mei Li,
Mei Li
Shanghai Marine Diesel Engine Research Institute, Shanghai, China
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Xianghui Meng,
Xianghui Meng
Shanghai Jiao Tong University, Shanghai, China
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Yi Cui
Yi Cui
Shanghai Jiao Tong University, Shanghai, China
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Yi Wang
Shanghai Jiao Tong University, Shanghai, China
Limin Wu
Shanghai Marine Diesel Engine Research Institute, Shanghai, China
Shuo Liu
Shanghai Jiao Tong University, Shanghai, China
Mei Li
Shanghai Marine Diesel Engine Research Institute, Shanghai, China
Xianghui Meng
Shanghai Jiao Tong University, Shanghai, China
Yi Cui
Shanghai Jiao Tong University, Shanghai, China
Paper No:
ICEF2018-9621, V002T07A006; 10 pages
Published Online:
January 3, 2019
Citation
Wang, Y, Wu, L, Liu, S, Li, M, Meng, X, & Cui, Y. "Numerical Study on Fretting Wear of Mating Surface Between Piston Crown and Skirt in Heavy Duty Diesel Engine." Proceedings of the ASME 2018 Internal Combustion Engine Division Fall Technical Conference. Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development. San Diego, California, USA. November 4–7, 2018. V002T07A006. ASME. https://doi.org/10.1115/ICEF2018-9621
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