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Acta Armamentarii ›› 2017, Vol. 38 ›› Issue (9): 1673-1680.doi: 10.3969/j.issn.1000-1093.2017.09.002

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Research on Wear Model for Cylinder Liners in Vehicle Diesel Engines under Dynamic Load

WANG Xian-cheng, YANG Shao-qing, MA Ning, ZHAO Wen-zhu   

  1. (Department of Mechanical Engineering, Academy of Armored Force Engineering, Beijing 100072, China)
  • Received:2017-01-19 Revised:2017-01-19 Online:2017-11-03

Abstract: In order to realize the numerical simulation on wear of diesel engine cylinder liner under dynamic load, the model and simplified mechanism of dynamic wear of cylinder liner are determined and presented based on the analysis of surface morphology of cylinder liner in overhaul diesel engine. A common expression of wearing depth is derived based on Archard adhesive wear model and two-body abrasive wear model. The response surface model is used to establish the numerical relationship between wear coefficient and dynamic load by analyzing the wear experimental data. The wear calculation model is verified by two groups of wear experiments under alternate loads. The test calculated results show that the maximum calculation error of wear mass is 6.15%, and the proposed model has reliable accuracy. Key

Key words: ordnancescienceandtechnology, dieselengine, cylinderliner, pistonring, wear, dynamicload

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