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. Users can focus on NVH sources and related corrective component efficiency: engine torsional harmonics, driveline vibration analysis, dual mass flywheel, clutch dampers, rattle noise ( 1kHz) with Finite Element ( FE) coupling if necessary. 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 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 Features • All frequency tools to accurately analyze oscillations ( eigenvalues, modal shapes, order tracking frequency response analyzer) • Coupling of linear and non-linear models • Capability to connect Finite Element models ( optimized for reduced CPU time) and non-linear actuators excitations • Free geometry models for 2-D contact with an easy-to-use GUI for the definition of the geometries and results visualization Benefits • Ease of representing fluid and mechanical coupling dynamics • Detection and modification of natural modes contributors to reduce vibrations • Reduction of contact force variations with backlash through teeth and planets optimization • Optimization of component geometries Software engineering memiliki misi menyediakan quality engineering software untuk para engineer sehingga mereka dapat lebih produktif dalam pekerjaannya. Kami juga membuatkan aplikasi software engineering yang customized / khusus , dengan harga yang bersaing. 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