Optimization Study for Sunroof Buffeting Reduction

2006-01-0138

04/03/2006

Event
SAE 2006 World Congress & Exhibition
Authors Abstract
Content
This paper presents the results of optimization study for sunroof buffeting reduction using CFD technology. For an early prototype vehicle as a baseline model in this study a high level of sunroof buffeting 133dB has been found. The CFD simulation shows that the buffeting noise can be reduced by installing a wind deflector at its optimal angle 40 degrees from the upward vertical line. Further optimization study demonstrates that the buffeting peak SPL can be reduced to 97dB if the sunroof glass moves to its optimal position, 50% of the total length of the sunroof from the front edge. For any other vehicles, the optimization procedure is the same to get the optimal parameters. On the other hand, however, this optimization study is only based on fluid dynamics principle without considering manufacturability, styling, cost, etc. Further work is needed to utilize the results in the production design.
Meta TagsDetails
DOI
https://doi.org/10.4271/2006-01-0138
Pages
12
Citation
An, C., and Singh, K., "Optimization Study for Sunroof Buffeting Reduction," SAE Technical Paper 2006-01-0138, 2006, https://doi.org/10.4271/2006-01-0138.
Additional Details
Publisher
Published
Apr 3, 2006
Product Code
2006-01-0138
Content Type
Technical Paper
Language
English