Statistical Energy Analysis of Noise and Vibration from an Automotive Engine

971975

05/20/1997

Event
SAE Noise and Vibration Conference and Exposition
Authors Abstract
Content
Statistical energy analysis (SEA) is a validated tool for vibro-acoustic modeling of larger systems such as air- and spacecraft, ships, and automobile bodies. In this paper, we report on the application of SEA to model the noise and vibration output of a vee-configuration automotive engine above 1000 Hertz. This approach may complement boundary element methods, which are time consuming to use and can only be applied up to one or two kilohertz. In a feasibility study, experimental data is used to specify power inputs and damping losses, as well as to validate the model. The study shows that SEA can be used to model the vibrational behavior of the engine block at high frequencies that are unattainable with deterministic methods. This result may apply to other structures such as transmissions, pumps, and superchargers.
Meta TagsDetails
DOI
https://doi.org/10.4271/971975
Pages
7
Citation
Kaminsky, C., and Unglenieks, R., "Statistical Energy Analysis of Noise and Vibration from an Automotive Engine," SAE Technical Paper 971975, 1997, https://doi.org/10.4271/971975.
Additional Details
Publisher
Published
May 20, 1997
Product Code
971975
Content Type
Technical Paper
Language
English