NVH & Acoustics for Powertrain

FEA & CFD Based Simulation Design Analysis Virtual prototyping MultiObjective Optimization

The global demand for more eco-friendly vehicles compels automotive OEMs and suppliers to develop fuel-efficient internal combustion engines. While fuel economy measures positively impact the emission of greenhouse gasses, it inevitably affects the vehicle’s noise, vibration and harshness (NVH) and acoustic behavior.

About.

Innovative development of CFD & FEA based Simulation

Abaqus, Ansys Fluent, Star-ccm+, Ls-dyna, Matlab

Full system NVH simulation

Weight reduction and downsized turbocharged engines might increase torsional excitation causing low frequency driveline NVH issues when integrating the driveline into the vehicle.

In addition, new energy management systems such as cylinder deactivation systems and start-stop systems can cause new transient NVH phenomena. These new complex NVH issues need to be addressed on top of the typical engine-related NVH topics, such as engine radiation, gearbox rattle, whine, judder, clunk, fuel slosh, intake and exhaust noise, and auxiliary noises.

Automotive Engineering: Powertrain Component Development, NVH, Combustion and Thermal simulation, Abaqus, Ansys, Ls-dyna, Siemens Star-ccm Enteknograte
Automotive Engineering: Powertrain Component Development, NVH, Combustion and Thermal simulation, Abaqus, Ansys, Ls-dyna, Siemens Star-ccm Enteknograte

NVH Simulation is important, because :

Predict dynamic gear excitations​

New lightweight, stiff chassis designs make structure-borne noise more important

High rotation speeds leads to higher frequency noise requiring accurate modelling and fast solutions

Greater need to balance NVH with efficiency requiring multi-attribute design optimisation

NVH & Acoustics for Powertrain​

With advanced Multi-Body Dynamics (MBD) in coupled with CFD and FEA packages, Enteknograte help manufacturers save time and cost to diagnose, analyze and resolve driveline NVH and drivability issues while balancing fuel economy, drivability, NVH and ride comfort, and increasing the efficiency of the NVH development process by using advanced specialized packages.

Automotive Engineering: Powertrain Component Development, NVH, Combustion and Thermal simulation, Abaqus, Ansys, Ls-dyna, Siemens Star-ccm Enteknograte
Full system NVH simulation from gear and electric machine design through to vehicle sound quality

WE WORK WITH YOU

We pride ourselves on empowering each client to overcome the challenges of their most demanding projects.

Automotive Engineering: Powertrain Component Development, NVH, Combustion and Thermal simulation, Abaqus, Ansys, Ls-dyna, Siemens Star-ccm Enteknograte