What's new in LMS Virtual.Lab Revision 10?

Feature-packed LMS Virtual.Lab Rev 10 puts speed and productivity at new level. New release guarantees fastest acoustic solutions on the market

 

Discover other new features to help you engineer the right product right now

 

 

FEM acoustics offers a variety of custom-fit solvers and features for guaranteed speed and process efficiency. Them main new item is AML (Automatically Matched Layer). Called the “next generation PML” (Perfectly Matched Layer), AML eliminates the need to model the absorbing PML layer. The solver does it automatically, delivering a simplified FEM mesh close to the radiating system. The FEM elements are purposely kept small so that the meshes are manageable and quickly solved.

Besides AML, other speedy new acoustic features include a MUMPS Solver (Multi-Frontal Massively Parallel Sparse Direct Solver) and VATV (Vibro-Acoustic Transfer Vector), an LMS Patented methodology. New to this release as well is temperature mapping, taking in the effect of temperature on acoustics.

 

Because the FEM mesh around the system is built very close to the radiating system, the amount of FEM elements can be kept very small, therefore these meshes are very efficient to handle and ultimately solve.

Significantly faster solution compared to current FEM solvers

 

For some acoustics applications, the temperature can be an important, critical item. For example, in the case of exhaust systems, temperature can be high and therefore it will influence significantly the acoustics.

 

When dealing with “random” applications such as Turbulent Boundary Layer excitation of an aircraft fuselage or when dealing with wind loads on a window, traditional techniques will take significant time. The new VATV technique (building on our experience of ATV), extends the ATV technique to coupled problems and will as such handle these problems very efficiently.

Method to gain significant more insight into how noise is propagating inside ducts. With this insight, understanding the countermeasures can be more efficiently designed for

 

 

The new Solutions Manager makes it possible to handle large sets of analysis cases, many with automated data management. New as well is the LMS Virtual.Lab Motion-ABAQUS connection for non-linear FE co-simulation. This co-simulation combines the accurate non-linear representation of certain components with the calculation speed of MBS. The continued investment in MBS Solver technology brings yet another significant solver speed improvement in solving realistic models in accelerated timing.

 

The 2 solvers (Motion and Abaqus) work in co-simulation.  Simulate certain system components with a nonlinear FE package like Abaqus, while the rest of the system is simulated with multi-body technology. 

Save time in running and managing different cases: simulate as fast as possible different design variants with different parameters, different loading conditions and different boundary conditions. 

 

This unique feature allows to simulate an unconstrained vehicle, to correlate multi-body models with test data, to transfer spindle loads from an old vehicle to a new vehicle and to serve as help for testing on physical durability test rigs.

 

 

 

Accurate and fast, LMS Virtual.Lab Durability Thermal Fatigue, provides a unique solution for high temperature cyclic and creep fatigue. Further improvements to Seam Weld modeling enable accurate and fast fatigue life calculations.

 

Possibility to perform simulation of thermal shocks with only simple test data needed

Seam Welds: Stress Approach

Use automated stress based methods for fatigue of seam welds.

 

 

Structural damping modeling  

The structural damping is a key component in reducing noise levels. Very efficiently study the effect of damping on the noise levels.

 

 

LMS Virtual.Lab Structures, the integrated solution for structural modeling and analysis, includes unified assembly modeling support for ABAQUS, and further advancing the ability to fully automate the process from CAD to CAE Results, with customer documented gains of 50% or more in time it takes to create and post-process a model.

 

Unified assembly modeling supported for ABAQUS        

Being able to leverage the unified assembly model directly for Abaqus

Alignment to ANSA Rev 13 & Semi-automatic mesh correction with ANSA from Virtual.Lab