Diagnostic Output

NVH analysis is a special form of physical analysis where the understanding of motion, energy and force transfer are the primary means of root cause identification and problem solving.

Motion (response)

  • Displacement/velocity/acceleration of a structural point
  • Sound pressure of an acoustic point
  • Animation of structural or acoustic responses


  • Strain energy
  • Potential energy
  • Damping energy

Force transfer

  • External forces
  • Internal forces through strategically chosen transfer paths

In addition to the above output of results, specialized NVH analysis techniques have been developed to mathematically break responses down into participations from various physically meaningful concepts, such as natural modes, grids and transfer paths.

Participations to Response

  • Modal participations
  • Grid participations
  • Transfer paths