NVH ( Noise, Vibration, and Harshness ) simulation services

FEA & CFD Based Simulation Design Analysis Virtual prototyping MultiObjective Optimization

Excellent NVH has become a vital machine and vehicle development target as it contributes to product quality and customer satisfaction. Advanced NVH experimental and virtual tools are prerequisites for cost and time effective development minimizing pre-production troubleshooting effort and shortening time-to-market. Our scope of work ranges from NVH benchmark and target setting, troubleshooting, sound design, low noise powertrain and driveline development, NVH engineering within machine and vehicle integration up to full machine NVH development responsibility.

interior noise NVH & Vibro-Acoustics Simulation MSC Actran ESI VA one abaqus ansys CFD, FEA, SEA & BEM 3

Interior noise is that heard inside the cabin by the occupants of the vehicle while external noise is that heard by those outside of the vehicle, for example pedestrians at the roadside. Interestingly enough, while noise and vibration can both be objectively measured, harshness is a more subjective quality. This produces a challenging problem for noise, vibration, and harshness simulation software. Besides passenger cars the field of our NVH activities covers also trucks as well as off-road and industrial machinery

For an early design of NVH characteristics of components and entire machine and vehicle, simulation tools are essential. Enteknograte offers a wide variety of solutions to your questions concerning the simulation of sound and vibrations. Be it the analytical modeling of possible noise sources under consideration of their physical formation mechanisms or FE and MBD models for the simulation of sound and vibration transfer – we are prepared for all of your questions.
Enteknograte’s NVH expertise includes:
  • Engine and transmission NVH
  • Body acoustics
  • Aeroacoustics
  • Power train induced NVH
  • Road NVH
  • Sound design and sound quality
  • Squeak and Rattle
  • Component induced NVH

NVH based Design and Considerations

The challenge for the NVH specialists is to support the concept and design development process by reliable recommendations just-in-time prior concept or design freeze. Enteknograte’s specialists particularly use advanced methodologies for NVH simulation and optimization:
  • FEA based Powertrain
  • Structural Optimization
  • Optimization of Engine Dynamics based on MBD ( Multi-Body Dynamics Simulation)
  • Concurrent optimization of combustion efficiency with NVH considerations
  • Vehicle Interior Noise Simulation based on measurement and CAE
  • Vehicle Exterior Noise Simulation with couple use of CFD and FEA solvers
  • Objective Analysis of Sound Quality
NVH & Vibro-Acoustics Simulation MSC Actran ESI VA one abaqus ansys CFD, FEA, SEA & BEM
NVH & Vibro-Acoustics Simulation MSC Actran ESI VA one abaqus ansys CFD, FEA, SEA & BEM 2
Enteknograte offers a Virtual Engineering approach with CFD and FEA tools such as Ansys Fluent, StarCCM+  for flows simulation and FEA based Codes such as ABAQUS, Ansys, Nastran and LS-Dyna, encompassing the accurate prediction of in-service loads, the performance evaluation, and the integrity assessment including the influence of manufacturing the components. Dependent of problem, we use ESI VA-one and MSC Actran as acoustics solver