LMS International’s has added a lot of new functionality to Rev 4 of its Virtual.Lab simulation software.
The LMS Virtual.Lab Structural Analysis configuration now provides users of Finite Element Analysis (FEA) tools, like CATIA CAE, MSC.NASTRAN or ANSYS, extended FE manipulation tools and pre-/post-processing capabilities for numerous types of FE analyses. LMS Virtual.Lab transparently accesses the modelling and results data, and makes the structural solver an integral part of the Virtual.Lab simulation process.
LMS Virtual.Lab Rev 4 also introduces a new morphing module that enables engineering teams to morph or modify an existing FE model into new FE models corresponding to the target new design. This allows them to perform a multitude of analyses before complete CAD or new FE models become available, and to deliver better design directives much earlier in the process. LMS Virtual.Lab Morphing also enables them to rapidly implement design changes, and to study more variants in the same time window.
With the new release, the Virtual.Lab Acoustics module now enables engineering teams to minimise the radiated noise or optimise the sound quality of new designs before prototype testing. LMS Virtual.Lab Acoustics now combines modelling capabilities with solver technology and visualisation tools. It tightly links acoustic prediction to structural design, which supports users in modifying the structural FE model to assess the effect of design modifications. It even allows them to automatically optimise the acoustic performance of the design, while systematically updating the FE models.
The Virtual.Lab Interior Acoustics solution has also been given a makeover too. Engineers can now accurately model the vibro-acoustic behaviour of a vehicle body, and realistically simulate the interior sound of the vehicle. This allows users to study the effect of increasing the structural damping of the body, stiffening the roof or the floor panels, changing the volumetric absorption from vehicle seats, or adapting the trim thickness of specific body panels. LMS Virtual.Lab Interior Acoustics includes unique cavity meshing capabilities that allow users to start from a structural full vehicle or trimmed body model and automatically generate the Finite Element mesh for the cavity. LMS Virtual.Lab Interior Acoustics supports the full simulation process in a single user environment – from the creation of the acoustic vehicle model, over the prediction of system-level transfer functions, up to the refinement and optimisation of the acoustic performance long before running prototype tests.
For its part, the LMS Virtual.Lab Noise and Vibration package offers a system synthesis techniques for vibration predictions that increase the speed of simulation runs. This, in combination with path, modal and panel contribution tools, allows users to efficiently analyse the root cause of specific noise and vibration problems. The modification prediction capabilities support them in assessing the noise and vibration performance of a design variant in a couple of minutes, and in exploring multiple options. LMS Virtual.Lab Noise and Vibration Rev 4 also offers extended tools to validate the accuracy of full-system simulation models. These tools compare the dynamic characteristics of virtual sub-system and component models with test models and validated virtual models. They allow users to make comparisons between any combination of model types, including FE-FE, test-test and test-FE correlations.
What’s more, LMS’ Virtual.Lab Motion module allows enginers to realistically simulate the dynamics of mechanical systems, and accurately determine the resulting internal dynamic loads and stresses. With Rev 4, LMS Virtual.Lab Motion introduces four new application-specific solutions, with dedicated modelling and simulation capabilities for full-vehicle, suspension, gear system and track vehicle simulation. It further extends its CAD compatibility, rigid and FE modelling capabilities and graphic post-processing tools. A design sensitivity analysis solution, built into the motion solver, enables users to analyse the sensitivity of their design to specific parameters, and to perform optimisation studies. LMS Virtual.Lab Motion Rev 4 offers extended capabilities for designing and simulating systems’ controls and hydraulics, providing a complete solution for mechatronic system analysis.
Finally, LMS Virtual.Lab Durability module introduces specific solution configurations for MSC.NASTRAN users. These component and system-level durability configurations provide integrated process flows that facilitate and automate all interactions with FE solvers such as ANSYS, MSC.NASTRAN and CATIA CAE – covering static strength, dynamic strength and fatigue-life prediction analysis. It further improves the accuracy of fatigue-life and structural strength predictions by offering enhanced seam weld capabilities.