This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Study of the Contact Pressures and Deformations of Piston Skirt in Gasoline Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 19, 2000 by SAE International in United States
Annotation ability available
This paper describes the investigation into the contact pressure and incidental deformation on the contact surface of the piston skirt which comes in contact with the cylinder bore in operation. Focused on the single piston static tests in the first place, relationship between the contact pressure on said skirt and the strains developed inside the skirt, and the relationship between the deformation of skirt face and the strains inside the skirt were studied. Then, the dynamic contact pressure onto the skirt in operation and the amount of deformation were calculated based on the relationships mentioned above using the factor of dynamic strains measured on an engine in operation. The deformation of skirt calculated using said dynamic strains was verified by the direct measurement of the skirt deformation. It was demonstrated that the thrust side of a piston skirt was largely deformed due to enlarged contact pressure caused by the piston slap subsequent to firing top dead center.
CitationKageyama, H., Machida, S., Shimanuki, S., Suzuki, T. et al., "Study of the Contact Pressures and Deformations of Piston Skirt in Gasoline Engine," SAE Technical Paper 2000-01-1784, 2000, https://doi.org/10.4271/2000-01-1784.
- Murakami et. al. “Analysis of Piston Frictional Force under Engine Firing Condition (in Japanese)” '91 Nihon Jidosha Gijutsukai Japan Automotive Technology Association Publication 22 4 70 73
- Sekiya et.al. “A Numerical Analysis for Piston Skirt about a Correlation between the Oil-film Pressure of Piston Skirt and Skirt Wear(in Japanese)” '96 Nihon Jidosha Gijutsukai Japan Automotive Technology Association Publication 27 3 78 82
- Dursunkaya Zafer et. al. “A Model of Piston Secondary Motion and Elastohydrodynamic Skirt Lubrication” ASME 93-ICE-7
- Blair William L. at. al. “The Role of Piston Distortion on Lubrication in a Reciprocating Engine” ASME 90-ICE-21
- Fujimoto et. al. “Dynamic Deformation of Piston Skirt(in Japanese)” ' 89 JSME Proceedings No. 891057
- Kageyama et. al. “Study of the Simulation of Piston Skirt Contact” '94 JSAE Review 15 1 15 19
- Kageyama et. al. “Study of Dynamic Deformation of Piston in Gasoline Engine.” '99 JSAE Proceedings No.9941656