Design approach for optimization of a piston ring profile considering mixed lubrication

Zhinan ZHANG; Jun LIU; Youbai XIE

doi:10.1007/s40544-016-0130-x

Friction 2016, 4(4): 335-346 https://doi.org/10.1007/s40544-016-0130-x

Research Article |

Open Access | Issue | Published: 23 December 2016

Design approach for optimization of a piston ring profile considering mixed lubrication

Show Author's Information Hide Author's Information Zhinan ZHANG^{¹^,²}(

), Jun LIU^², Youbai XIE^{¹^,²}

¹ State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China

² School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Keywords:

mixed lubrication, piston ring profile, inverse method, tribology design, hydrodynamic lubrication

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ZHANG Z, LIU J, XIE Y. Design approach for optimization of a piston ring profile considering mixed lubrication. Friction, 2016, 4(4): 335-346. https://doi.org/10.1007/s40544-016-0130-x

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Abstract Full text About this article

Abstract

To reduce the friction of a piston ring while maintaining a large oil film load-carrying capacity, an approach comprising of the inverse method and the sequential quadratic programming algorithm was proposed. The approach considers the variation of mixed lubrication and variable lubricant viscosity with temperature along the engine stroke, is developed to optimize the profile of a piston ring. A piston ring profile is represented by a polynomial function. A case study of the second piston ring shows that the proposed method can be applied for the optimization of a piston ring profile. In addition, this paper illustrates the effects of the degree of a polynomial function. The results show that the minimization of friction and maximization of oil film load-carrying capacity can be balanced simultaneously when the degree of the polynomial is 2 and 5.

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About this article

Design approach for optimization of a piston ring profile considering mixed lubrication

Show Author's information Hide Author's Information Zhinan ZHANG^{¹^,²}(

), Jun LIU^², Youbai XIE^{¹^,²}

¹ State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China

² School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Abstract

Keywords: mixed lubrication, piston ring profile, inverse method, tribology design, hydrodynamic lubrication

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Publication history

Received: 19 September 2016

Revised: 02 November 2016

Accepted: 08 November 2016

Published: 23 December 2016

Issue date: June 2021

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Acknowledgements

This study is supported by the National Natural Science Foundation of China (Nos. 51575340 and 51575342), Research Project of State Key Laboratory of Mechanical System and Vibration (No. MSVZD201104).

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