Product category:
Simulation, modelling and validation software
News Release from: LMS International | Subject: LMS Virtual.Lab Rev 3
Edited by the Engineeringtalk Editorial
Team on 10 November 2003
Simulator optimises real-life
performance
LMS Virtual.Lab offers an integrated software suite to simulate the performance of mechanical systems on attributes such as noise and vibration, durability, ride and handling and dynamic motion.
LMS Virtual.Lab offers an integrated software suite to simulate the performance of mechanical systems on attributes such as noise and vibration, durability, ride and handling and dynamic motion With Rev 3, LMS Virtual.Lab covers all the critical process steps and required technologies to perform an end-to-end assessment of a design in every key discipline
This article was originally published on Engineeringtalk on 19 Mar 2001 at 8.00am (UK)
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LMS Virtual.Lab is based on CAA V5 (Component Application Architecture), the open middleware for PLM from Dassault Systemes.
"LMS Virtual.Lab Rev 3 enables a powerful engineering process capable of refining critical functional performance attributes long before committing to physical prototyping", commented Werner Pohl Corporate Vice-President and General Manager CAE Division.
"LMS Virtual.Lab allows to accurately assess the radiated noise of a new engine design, the vibration comfort of a complete vehicle, or the fatigue resistance of an aircraft landing gear.
Using Virtual.Lab, engineering teams can quickly and reliably analyse a multitude of design options, and drive major design choices from the perspective of key performance attributes".
Innovative technologies included in Rev 3 dramatically speed up the building and testing of component and system-level virtual models.
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Newly introduced solvers, for example, accelerate acoustic calculations by a factor of 30 to 100, and deliver simulation results within one hour instead of one day.
Through the integration of new hybrid simulation capabilities, Virtual.Lab Rev 3 allows to validate virtual models with test data, use real-world validated loads, and combine test models of existing components with virtual models of new components.
This does not only accelerate virtual simulation, it also makes the simulation results more accurate and robust.
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To further increase the impact of virtual simulation on key development processes, Virtual.Lab Rev 3 offers new application-specific modules for powertrain acoustics, powertrain dynamics, vehicle dynamics, full-vehicle NVH, component and system-level durability.
LMS Virtual.Lab Rev 3 integrates design of experiments (DOE), response surface modelling (RSM) and advanced optimisation techniques.
These capabilities allow Virtual.Lab users to automatically assess a multitude of design alternatives, and to use robust design methodologies to assess the influence of real-world variability in a search for safer, higher-quality and better performing products.
LMS Virtual.Lab Rev 3 provides Ansys users an active, associative link between Virtual.Lab and Ansys for all linear structural analyses.
Virtual.Lab users are not only able to access Ansys modelling and results data, they can also make Ansys an integral part of a Virtual.Lab-supported engineering process.
By implementing Virtual.Lab, users also have the ability to automatically set up Ansys solutions and drive the Ansys solver.
LMS Virtual.Lab Acoustics Rev 3 offers an integrated solution to minimise the radiated noise or optimise the sound quality of new designs before prototype testing.
Convenient modelling capabilities combined with powerful solver technology and easy-to-interpret visualisation tools reduce the full simulation process from days to just a couple of hours.
The high-speed BEM solvers accelerate acoustic BEM calculations by a factor 30 in average.
In recent benchmarks, the computation time for a model of 6800 DOF and for 560 frequencies decreased from 101 hours to just over 4 hours through the use of high-speed BEM.
LMS Virtual.Lab Acoustics allows to investigate the full scope of an acoustic problem from the actual source, over the structural vibrations, to the pure acoustic field.
Typical applications include the noise engineering of engines and engine components, the acoustic engineering of intakes and exhausts, the noise control of aircraft engines, or the sound refinement of consumer electronics.
Within Rev 3, LMS Virtual.Lab Noise and Vibration is further enhanced to perform noise and vibration analyses on the level of a full vehicle or aircraft.
It offers new synthesis techniques to build system models for vibration predictions, based on coupling the vibration modes of different components rather than using their full FE (finite element) model.
This breakthrough accelerates the building of full-vehicle models, dramatically reduces their sise, and boosts the speed of simulation runs.
The unique modification prediction capabilities in LMS Virtual.Lab Rev 3 allow engineers to assess the noise and vibration performance of a design variant in a couple of minutes, and to quickly explore multiple options.
LMS Virtual.Lab Motion Rev 3 offers a complete and integrated solution to simulate realistic motion and loads of mechanical systems.
It allows engineers to quickly create and refine multibody models, to re-use CAD and FE models, and to perform fast iterative simulations to assess the performance of multiple design alternatives.
Engineers can use scalable models to execute conceptual kinematic studies, up to making more complex mechanical system models taking into account component flexibility.
Dynamic component loads, gained through motion simulations can easily be used to drive subsequent durability or noise and vibration analyses within LMS Virtual.Lab.
LMS Virtual.Lab Powertrain Motion offers dedicated templates and interactive wisards that compress the time required to model powertrain assemblies from weeks to hours.
It allows engineers to accurately predict the dynamic behavior of powertrain systems at high speed or under heavy-duty operations.
It supports the analysis of valve train performance, powertrain reliability, engine vibrations, and engine sound quality.
LMS Virtual.Lab Motion Rev 3 also includes a new module for Belt and Chain, delivering an interactive wisard that helps compress the time required to create detailed multibody models of belts or chains.
Users quickly get to complete virtual models that are built according to today's best practices, integrating rotational speed controls for the simulation of stationary speeds, speed sweeps and transient run-ups.
LMS Virtual.Lab Vehicle Dynamics Rev 3 offers engineers a dedicated environment to efficiently set up and analyse suspension full vehicle and driveline models for in-depth vehicle dynamics studies.
Users can simulate full-vehicle manoeuvres and get immediate feedback on the vehicle's ride and handling performance before testing the first prototype.
The new LMS Virtual.Lab module for Component Durability offers an integrated simulation environment to predict the fatigue hotspots and corresponding fatigue life.
It combines dynamic component loads with stress results automatically derived from structural FE-meshes and fatigue material parameters.
New durability post-processing allows immediate feedback on critical areas, to understand the root cause of fatigue problems and to quickly assess multiple design alternatives.
The LMS Virtual.Lab System-level Durability tightly integrates multibody simulations with flexible-body analyses and fatigue-life predictions.
The entire simulation process runs within the same LMS Virtual.Lab environment, from model creation, over analysis preparation, loads cascading, and fatigue solving, up to the post-processing.
LMS Virtual.Lab herewith offers the first easy-to-use solution to do fast, thorough durability studies on the full-level system level.
With LMS Virtual.Lab Optimisation, LMS integrated a set of powerful capabilities for single and multi-attribute optimisation.
Through design of experiments (DOE) and response surface modelling (RSM) techniques, engineers gain a rapid insight in all the possible design options that meet their requirements.
Using advanced optimisation routines, Virtual.Lab automatically selects the optimal design, taking into account its sensitivity to real-world variability, and meeting the strictest robustness, reliability and quality criteria. Request a free brochure from LMS International ...
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