Reduction of Interior Booming Noise for a Small Diesel Engine Vehicle without Balance Shaft Module

2009-01-2121

05/19/2009

Event
SAE 2009 Noise and Vibration Conference and Exhibition
Authors Abstract
Content
Applying BSM (Balance shaft module) is a very common and effective way to reduce the 2nd-order powertrain vibration which is caused by the ill-balanced inertia force due to the oscillating masses inside an engine. However, the adoption of a BSM can also produce undesirable things especially in cost, fuel economy, starting performance, and so on. Therefore, for small vehicles, in which case cost and weight are key factors at the development stage, it is often required to develop competitive NVH performance without the expensive apparatus like a BSM.
In this paper, in order to develop interior noise and vibration of a 4-cylinder vehicle without a BSM, we analyzed the contribution of some transfer paths for powertrain vibration, and could reduce interior booming noise by tuning the dynamic characteristic of the engine mount which was one of the largest transfer paths.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-01-2121
Pages
7
Citation
Hwang, C., Lee, B., and Jung, P., "Reduction of Interior Booming Noise for a Small Diesel Engine Vehicle without Balance Shaft Module," SAE Technical Paper 2009-01-2121, 2009, https://doi.org/10.4271/2009-01-2121.
Additional Details
Publisher
Published
May 19, 2009
Product Code
2009-01-2121
Content Type
Technical Paper
Language
English