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Panel contribution analysis for a sedan car using numerical simulations

Jahani, K ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. Publisher: International Institute of Acoustics and Vibrations , 2013
  3. Abstract:
  4. These days, the pace of utilizing CAE tools is increasing with an eye to the vehicle development time and cost considerations. This paper deals with the NVH virtual analyses performed for a trimmed body of a B-segment sedan car. Since the main source of annoyance in low frequency range is the booming noise, the NVH diagnoses are performed by FEM tools. Firstly, the finite element model of the car is generated and this is followed by the modal analysis simulations for the car and cavity models in order to investigate the frequency attributes of the car and identify the NVH characteristics of body structure and acoustic cavity. Afterwards, noise transfer function (NTF) analyses are performed in order to predict the noise in driver's ear position. Eventually, panel contribution analyses are done in order to recognize the role of each panel in the interior noise of cabin
  5. Keywords:
  6. Acoustic fields ; Computer simulation ; Modal analysis ; Tools ; Acoustic cavities ; Body structure ; Booming noise ; Interior noise ; Low frequency range ; Noise transfer function ; Panel contribution analysis ; Vehicle development ; Acoustic noise
  7. Source: 20th International Congress on Sound and Vibration 2013, ICSV 2013 ; Volume 4 , 2013 , Pages 2891-2898 ; 9781629931500
  8. URL: http://www.proceedings.com/19660.html