Commercial Vehicle NVH Refinement through Test-CAE Development Approach

Paper #:
  • 2013-01-1006

Published:
  • 2013-04-08
DOI:
  • 10.4271/2013-01-1006
Citation:
John Britto, V., Sivasankaran, S., Loganathan, E., Kupplili Saisankaranarayana, S. et al., "Commercial Vehicle NVH Refinement through Test-CAE Development Approach," SAE Technical Paper 2013-01-1006, 2013, doi:10.4271/2013-01-1006.
Abstract:

The cost incurred to make design modifications to solve NVH problems increases with maturity of design in the development process. Hence NVH issues should be addressed in the initial phase to avoid any significant changes in structure and subsequent changes in overall performance of the vehicle. Hybrid methodology with application of advanced testing and Computer Aided Engineering (CAE) tools to achieve full vehicle NVH attribute targets is nowadays a must for this reason.

This paper represents a case study on low frequency NVH performance evaluation and refinement for heavy commercial vehicle truck using Hybrid Test-CAE methodology. To achieve better NVH performance, it is important to set competitive overall vehicle level NVH targets and cascade it down to system and sub-system targets. Test-CAE correlation has been carried out to validate Finite element (FE) modeling procedure and methodology. This helped to optimize the design efficiently in order to achieve the full vehicle level NVH targets. An attempt has been made to achieve overall vehicle level NVH targets with minimal test measurements.

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