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Measurement of Piston Skirt Oil-film Pressure under Piston Slap
Technical Paper
2007-01-2215
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Using small thin-film pressure sensors deposited onto a piston skirt surface, oil-film pressure on the piston skirt surface is measured when piston slap noise is generated without affecting the surface geometry, stiffness and mass of the piston. Under a no-load firing engine condition and at low temperature, the measured oil-film pressure corresponded well to the measured acceleration of the cylinder liner, which is indicative of piston slap noise, confirming the validity of the present method. Moreover, the oil-film pressure distribution on the skirt surface was measured for different engine speeds and piston pin offsets, which enabled more insight to be provided into piston secondary motion than that by considering the effects of cylinder liner acceleration.
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Citation
Kamiya, M., Kobayashi, T., Mihara, Y., and Someya, T., "Measurement of Piston Skirt Oil-film Pressure under Piston Slap," SAE Technical Paper 2007-01-2215, 2007, https://doi.org/10.4271/2007-01-2215.Also In
SAE 2007 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V116-6; Published: 2008-08-15
Number: V116-6; Published: 2008-08-15
References
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