Assessment of the Vehicle's Interior Wind Noise Due to Measurement of Exterior Flow Quantities Magna Steyr Fahrzeugtechnik AG and CoKG

Format:

Conference/Event

Author/Creator:

Müller, Müller, author.

Contributor:

Grabner, Gottfried

Jany, Jörg

Wiesenegger, Michael

Conference Name:

8th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference (2014-07-02 : Graz, Austria)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2014

Summary:

The optimal styling of the exterior surface of a vehicle and its suspension system have a direct impact on interior wind noise. Both are determined in early project phases when no hardware prototype is available. Turbulent flows produce both external pressure fluctuations at the vehicle shell, known as hydrodynamic excitation, and sound waves, known as acoustic excitation. Hydrodynamic and acoustic sound sources are evaluated separately and relative to each other in the frequency domain in order to perform evaluations of different body shapes. The technical aim of the presented work is to investigate how acoustic quantities measured at the outside of a vehicle can be used to assess the influence of styling modifications to interior sound pressure level. The methodology is required to be capable of being integrated into the serial development process and therefore be quickly applicable. MAGNA STEYR Engineering has conducted extensive research to develop a method to ensure the best option is selected in the early project stages

Notes:

Vendor supplied data

Publisher Number:

2014-01-2050

Access Restriction:

Restricted for use by site license