Research Papers: Hydrodynamic Lubrication

Influence of Skirt Profile Structure of Gasoline Engine Piston on the Friction and Wear Characteristics Under Standard Conditions

[+] Author and Article Information
Jian Zhang

College of Electromechanical Engineering,
Binzhou University,
Binzhou 256600, Shandong, China
e-mail: zhangjian3829@163.com

Zhongyu Piao

College of Mechanical Engineering,
Zhejiang University of Technology,
Hangzhou 310012, Zhejiang, China
e-mail: piaozy@zjut.edu.cn

Shiying Liu

Shandong Binzhou Bohai Piston Co., Ltd.,
Binzhou 256600, Shandong, China
e-mail: lsy_bz@163.com

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received May 1, 2017; final manuscript received July 16, 2017; published online September 29, 2017. Assoc. Editor: Joichi Sugimura.

J. Tribol 140(2), 021703 (Sep 29, 2017) (11 pages) Paper No: TRIB-17-1164; doi: 10.1115/1.4037360 History: Received May 01, 2017; Revised July 16, 2017

Different profile structures were designed for a high-power engine piston, and engine tests were carried out to analyze and compare the influences of the widest point position and contraction rate on the skirt wear property. The results show that the lower position of the widest point will cause poor guidance, and at the same time the rapid radial reduction in both the upper and lower parts will increase the swing angles and the kinetic energy; the uniformity of wear loads can be improved effectively by increasing the height of the widest point and the width of the maximum diameter region; the degree of wear of the skirt can be considered through a comparison of the outer diameter variation.

Copyright © 2018 by ASME
Your Session has timed out. Please sign back in to continue.


Skjoedt, M. , Butts, R. , and Assanis, D. N. , 2008, “ Effects of Oil Properties on Spark-Ignition Gasoline Engine Friction,” Tribol. Int., 41(6), pp. 556–563.
Huang, R. , Riddle, M. , and Graziano, D. , 2015, “ Energy and Emissions Saving Potential of Additive Manufacturing: The Case of Lightweight Aircraft Components,” J. Cleaner Prod., 135, pp. 1559–1570.
Tung, S. C. , and Mcmillan, M. L. , 2004, “ Automotive Tribology Overview of Current Advances and Challenges for the Future,” Tribol. Int., 37(7), pp. 517–536.
Ye, Z. K. , Zhang, C. , and Wang, Y. C. , 2004, “ An Experimental Investigation of Piston Skirt Scuffing: A Piston Scuffing Apparatus, Experiments, and Scuffing Mechanism Analyses,” Wear, 257(1), pp. 8–31.
Johansson, S. , Nilsson, P. H. , and Ohlsson, R. , 2011, “ Experimental Friction Evaluation of Cylinder Liner/Piston Ring Contact,” Wear, 271(3), pp. 625–633.
Zhang, J. , and Li, H. , 2016, “ Influence of Manganese Phosphating on Wear Resistance of Steel Piston Material Under Boundary Lubrication Condition,” Surf. Coat. Technol., 304, pp. 530–536.
Lyubarskyy, P. , and Bartel, D. , 2016, “ 2D CFD-Model of the Piston Assembly in a Diesel Engine for the Analysis of Piston Ring Dynamics, Mass Transport and Friction,” Tribol. Int., 104, pp. 352–368.
He, Z. , Xie, W. , Zhang, G. , Hong, Z. , and Zhang, J. , 2014, “ Piston Dynamic Characteristics Analyses Based on FEM Method—Part I: Effected by Piston Skirt Parameters,” Adv. Eng. Software, 75, pp. 68–85.
Zhao, B. , Dai, X. D. , Zhang, Z. N. , and Xie, Y. B. , 2016, “ A New Numerical Method for Piston Dynamics and Lubrication Analysis,” Tribol. Int., 94, pp. 395–408.
Gulzar, M. , Masjuki, H. H. , and Varman, M. , 2016, “ Effects of Biodiesel Blends on Lubricating Oil Degradation and Piston Assembly Energy Losses,” Energy, 111, pp. 713–721.
Liu, W. , Huang, Z. , and Liu, Q. , 2016, “ An Iso Geometric Analysis Approach for Solving the Reynolds Equation in Lubricated Piston Dynamics,” Tribol. Int., 103, pp. 149–166.
Wang, Z. , Tang, J. , and Yu, X. , 1999, “ The Influence of Piston Skirt Profile on the Secondary Motion and Friction Power Loss of Piston,” Trans. CSICE, 17(4), pp. 383–387.
Zhou, L. , Zhang, Y. , Xu, M. , and Li, M. , 2014, “ Optimization of Engine Piston Profile Based on Multi-Body Dynamics Model and Genetic Algorithm,” Chin. Intern. Combust. Engine Eng., 35(5), pp. 17–23.
Wu, J. M. , Peng, H. , and Xu, X. , 2013, “ Characteristics Analysis of Agricultural Machinery Engine Piston Profile,” J. Chin. Agric. Mech., 34(5), pp. 64–68.
Liu, K. , Gui, C. L. , and Xie, Y. B. , 1998, “ Lubrication of Piston Skirt and Secondary Dynamic Analysis of Piston Assembly,” Trans. CSICE, 16(2), pp. 191–195.
Livanos, G. A. , and Kyrtatos, N. P. , 2007, “ Friction Model of a Marine Diesel Engine Piston Assembly,” Tribol. Int., 40(3), pp. 1441–1453.
Wang, Q. S. , and Liu, K. , 2012, “ Simulation Analysis on the Effects of Skirt Topography on Mixed Lubricating Characteristics of Piston Skirt,” Trans. CSICE, 30(1), pp. 91–95.
Mansouri, S. H. , and Wong, V. W. , 2005, “ Effects of Piston Design Parameters on Piston Secondary Motion and Skirt-Liner Friction,” Proc. Inst. Mech. Eng., Part J, 219(6), pp. 435–449.


Grahic Jump Location
Fig. 1

Profile structures of piston: (a) profile schemes and (b) skirt geometry

Grahic Jump Location
Fig. 2

The micromorphology and composition of the skirt surface coating: (a) surface coating, (b) micromorphology, and (c) composition analysis

Grahic Jump Location
Fig. 3

Morphology and thickness of skirt section: (a) cross section morphology and (b) local magnification

Grahic Jump Location
Fig. 4

The roughness of the skirt surface with coatings

Grahic Jump Location
Fig. 5

The structural curve of cylinder: (a) cylinder 1 view 0–180 deg and (b) cylinder 1 view 90–270 deg

Grahic Jump Location
Fig. 7

Flowchart of the software simulation

Grahic Jump Location
Fig. 9

The developer crack detection results

Grahic Jump Location
Fig. 10

Wear morphology of the skirt on the thrust side: (a) profile 1: cylinder 1, (b) profile 1: cylinder 2, (c) profile 2: cylinder 1, (d) profile 2: cylinder 2, (e) profile 3: cylinder 1, and (f) profile 3: cylinder 2

Grahic Jump Location
Fig. 11

Lateral traces on the cylinder surface: (a) cylinder 1 and (b) cylinder 4

Grahic Jump Location
Fig. 12

The roughness of the cylinder surface after test

Grahic Jump Location
Fig. 13

Micromorphology of the main area wear of profile 1: (a) outer surface and (b) cross section

Grahic Jump Location
Fig. 14

Micromorphology of the main wear area of profile 2: (a) outer surface and (b) cross section

Grahic Jump Location
Fig. 15

Micromorphology of the main wear area of profile 3: (a) outer surface and (b) cross section

Grahic Jump Location
Fig. 16

The micromorphology and composition of the transverse wear part on cylinder surface: (a) micromorphology and (b) composition analysis

Grahic Jump Location
Fig. 17

The micromorphology and composition of the normal wear part on cylinder surface: (a) micromorphology and (b) composition analysis

Grahic Jump Location
Fig. 18

Structure and variation of the profile on the thrust side: (a) profile 1, (b) profile 2, and (c) profile 3

Grahic Jump Location
Fig. 19

Wear morphology comparison on the thrust side: (a) ruler, (b) profile 1, (c) profile 2, and (d) profile 3

Grahic Jump Location
Fig. 20

Comparison of the swing angle

Grahic Jump Location
Fig. 21

Comparison of kinetic energy: (a) the whole process and (b) expansion stroke

Grahic Jump Location
Fig. 22

Comparison of maximum pressures of the piston skirt

Grahic Jump Location
Fig. 23

Friction loss comparison of piston skirt



Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In