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A Virtual Car: Prediction of Sound and Vibration in an Interactive Simulation Environment
Technical Paper
2001-01-1474
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Feeling and hearing the results of engineering decisions immediately via a “virtual car” - simultaneous engineering - can significantly shorten vehicle development time. Sound quality and discrete vibration at the driver's position may be predicted and “driven” before the first prototype is built. Although sound cannot yet be predicted in an unknown chassis, the sound and vibration behavior resulting from a new engine, never previously installed in a given vehicle, may be predicted, heard binaurally and felt in an interactive “drivable” simulation based on transfer path analysis. Such a simulation, which includes the binaural sound field and discrete vibration of steering wheel and seat, can also include wind and tire noise to determine if certain engine contributions in sound and vibration may be masked. The method involves use of two technologies in conjunction: binaural transfer path analysis (with vibration transfer path analysis) and a real-time interactive multichannel acoustic and vibration simulation system. From the transfer path data the simulation environment permits interactive control from throttle position, etc. of relevant vehicle behavior including load, gear ratios, and vehicle mass, providing a running acoustic and vibration simulation. The user can change chassis impedances and transfer path properties and immediately “drive” the resulting behavior.
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Citation
Genuit, K. and Bray, W., "A Virtual Car: Prediction of Sound and Vibration in an Interactive Simulation Environment," SAE Technical Paper 2001-01-1474, 2001, https://doi.org/10.4271/2001-01-1474.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
References
- Genuit K. , Bohineust X. , Rehfeld M. Binaural “Hybrid” Model for Simulation of Noise Shares in the Interior of Vehicles InterNoise'97 25.-28 08 97 Budapest, Hungary
- Synthesis Report AQUSTA: Improvement of the structural Acoustic Quality of transportation vehicles Using Simulation Techniques of binaural Analysis December 1992
- Genuit K. , Poggenburg J. , The Design of Vehicle Interior Noise Using Binaural Transfer Path Analysis SAE'99 17.-20 05 1999 Traverse City, USA
- Genuit K. , Application of Binaural Transfer Path Analysis to Sound Quality Tasks European Conference on Vehicle Noise and Vibration 2000 10.-12 05 2000 IMeche 2000 London, UK pp 241 250
- Krebber W. , Gierlich H.W. , Acoustical feedback system for virtual vehicles ATA 1997 26.-28 02 1997 Florence Nr. 97A1045
- Blauert J. Spatial Hearing MIT Press Cambridge, MA 1983
- Damaske P. , Mellert V. , Acustica 22 1969 pp 154 162
- Genuit K. , Gierlich H.W. , Künzli U. Improved Possibilities of Binaural Recording and Playback Techniques 92 nd Convention of AES Vienna 1992 24.-27 03 1992 Preprint 3332
- Krebber W. , Gierlich H.W. Auditory displays using loudspeaker reproduction Joint meeting EAA/ASA Berlin 1999
- Genuit K. , Poggenburg J. The influence of vibrations on the subjective judgement of vehicle interior noise Noise-con 98 Ypsilanti, MI, USA