Piston Slap Induced Noise and Vibration of Internal Combustion Engines (1st Report, Theoretical Analysis and Simulation)

870990

04/28/1987

Event
SAE Noise and Vibration Conference and Exposition
Authors Abstract
Content
This paper presents an analytical model of the impact force and the vibratory response of cylinder liner induced by the piston slap in internal combustion engines. In this method, the equation of motion for the coupled system of piston and cylinder liner is derived, taking account of several resonant modes of the cylinder liner to simulate accurately time histories of the impact force and the vibratory response. As practical example, the piston slap phenomenon in a six cylinder diesel engine with wet liners is analyzed at rotational speed N = 1800, 2300 rpm, using the dynamic characteristics of the cylinder liner that were experimentally determined. The calculated results show that the impact force is amplified by the piston-liner impact vibration as compared with the piston side force and that both the time history and the frequency spectrum of cylinder liner acceleration agree well with measured results.
Meta TagsDetails
DOI
https://doi.org/10.4271/870990
Pages
6
Citation
Ohta, K., Irie, Y., Yamamoto, K., and Ishikawa, H., "Piston Slap Induced Noise and Vibration of Internal Combustion Engines (1st Report, Theoretical Analysis and Simulation)," SAE Technical Paper 870990, 1987, https://doi.org/10.4271/870990.
Additional Details
Publisher
Published
Apr 28, 1987
Product Code
870990
Content Type
Technical Paper
Language
English