Driveline NVH modeling applying a multi-subsystem spectral-based substructuring approach

Yi Wang, Teik C. Lim, Mark L. Clapper, Nae Ming Shiau, Paul Braunwart, Yuejun Lee

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


A new multi-level substructuring approach is proposed to predict the NVH response of driveline systems for the purpose of analyzing rear axle gear whine concern. The fundamental approach is rooted in the spectral-based compliance coupling theory for combining the dynamics of two adjacent subsystems. This proposed scheme employs test-based frequency response functions of individual subsystems, including gear pairs, propshaft, control arms and axle tube, in free-free state as sequential building blocks to synthesize the complete system NVH response. Using an existing driveline design, the salient features of this substructuring approach is demonstrated. Specifically, the synthesized results for the pinion-propshaft assembly and complete vehicle system are presented. The predictions are seen to be in excellent agreement with the experimental data from direct vehicle measurements.

Original languageEnglish (US)
JournalSAE Technical Papers
StatePublished - 2005
Externally publishedYes
EventSAE 2005 Noise and Vibration Conference and Exhibition - Traverse City, MI, United States
Duration: May 16 2005May 19 2005

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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