LMS Imagine.Lab Noise, Vibration and Harshness

LMS Imagine.Lab Noise, Vibration and Harshness (NVH) gives users an in-depth understanding of the NVH powertrain system performance. The solution provides all the required information on the root causes of noise and vibration problems related to hydraulic dynamics, mechanical contacts or slip control. These can potentially generate a negative quality perception or key component durability problems. Moreover, with LMS Imagine.Lab Noise, Vibration and Harshness, mechanical parts and overall system architecture can be optimized. 



Uses can focus on NVH sources and related corrective component efficiency: engine torsional harmonics, driveline vibration analysis, dual mass flywheel, clutch dampers, idle noise (>300Hz) and whining noise (>1 kHz).

The solution provides a better physical understanding of driveline vibrations due to a combination of linear and nonlinear systems (dry frictions, variable stiffness, endstops, bearings, joints, gear backlash). The Finite Element (FE) import interface is able to include any FE mesh (modal base or condensed) in an AMESim sketch to study the coupling between mechanical 3D structures or 3D shafts with actuators (electrics or hydraulics).

Engineers can considerably reduce the number of vehicle dynamics test benches, using AMESim’s off-line test procedure validation on any vehicle powertrain architecture:

• Transmission part: mechanical, automated, dual clutch, infinitely variable, continuously variable
• Driveline part: universal joints, clutch dampers, dual mass flywheel, chassis
• Engine part: crankshaft, camshaft, valves, rocker arms

Covering a range of industries, LMS application cases let you discover how LMS solutions help our customers solve their real-life engineering challenges.