Prediction of External Flow Acoustic Impact on In-cab Noise

Reference number 2014-01386
Coordinator Volvo Technology AB
Funding from Vinnova SEK 3 281 235
Project duration December 2014 - December 2018
Status Completed
Venture Electronics, software and communication - FFI
Call 2013-05661-en

Purpose and goal

The purpose of this project was to build up knowledge and computer models on how wind noise is generated in a truck. This is of importance since the largest contributor to the interior noise is wind noise. This is of importance from a safety point of view since high noise can lead to fatigue and head aches and give us dangerous truck drivers.

Expected results and effects

The results show that the computer model is reliable and can be used to rank different concepts to how much noise they generate. This is important since it will be possible to evaluate different concepts in early stages. This will lead to safer driver environments and less development costs.

Planned approach and implementation

We have used simplified models to build up a methodology which has then been applied on a real truck. Measurements were made on a real truck and the results correlate well to the simulations. Chalmers contribution to this project has been to develop a methodology based on a simplified geometry. This methodology was then applied on a real truck and the results were compared to measurements.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.