Analysis and Reduction of Piston Slap Noise in Diesel Engines

890127

02/01/1989

Event
SAE International Congress and Exposition
Authors Abstract
Content
Piston slap is one of the major sources of noise in a 4-cycle diesel engine. Reduction of it is essential in reducing total engine noise.
For the purpose of reducing piston slap noise, piston lateral transverse movement was simulated using a new analytical model which considers not only the effect of oil cushioning, but also piston deformation, within a reasonable computing time.
The simulation results showed that the modification of piston profile, as well as piston pin center offset and reduction of piston-liner clearance, can reduce the piston slap force. As a result, an improved piston profile was designed for reducing slap noise, and the effect of the improved piston on noise reduction was proven.
Meta TagsDetails
DOI
https://doi.org/10.4271/890127
Pages
12
Citation
Okubo, M., Kanda, H., and Yonezawa, T., "Analysis and Reduction of Piston Slap Noise in Diesel Engines," SAE Technical Paper 890127, 1989, https://doi.org/10.4271/890127.
Additional Details
Publisher
Published
Feb 1, 1989
Product Code
890127
Content Type
Technical Paper
Language
English