Highly efficient and accurate solver solution records up to 60% time savings in solving complex simulation models

Leuven, Belgium - September 20, 2005 - LMS International, the engineering
innovation company, announced the extension of LMS Virtual.Lab Motion with
breakthrough solver technologies and new modeling capabilities to simulate
real-life system dynamics. The new Auto-Recursive Solver records up to 60%
time savings in solving complex simulation models with long series of linked
components and high number of contact points between components. This
eliminates the calculation bottleneck for the simulation of the dynamic
behavior of timing chains, belts, tracked vehicles, complex production
machines, etc. As a result, LMS Virtual.Lab Motion allows users to
accurately simulate the internal forces and accelerations of these
mechanisms, which are typically very difficult to measure through prototype
tests.

The new Auto-Recursive Solver takes advantage of repeated bodies connected
by revolute, rev-rev, or rev-trans kinematic constraints. When this
topology is present in a model, it can be exploited to solve the
acceleration terms more efficiently compared to a traditional motion solver
based on Cartesian equations. LMS Virtual.Lab Motion offers a unique
implementation of the Auto-Recursive Solver, since it coexists with the
traditional motion solver in a single, integrated solution. The user
herewith benefits from the performance and accuracy benefits of both solver
solutions combined in a single simulation model.

LMS Virtual.Lab Motion Rev 5 combines the deployment of the Auto-Recursive
Solver with a new Sub Mechanisms capability. This new feature introduces a
building block approach to efficiently model and simulate complex mechanism
models like an engine valve train or a tracked vehicle. It intelligently
avoids the usage of redundant geometry information when repeated elements
are involved. This makes the resulting simulation models smaller and more
efficient to solve, resulting in less memory consumption and faster
calculation runs.

With Rev 5, LMS Virtual.Lab Motion also gains a reliable and efficient
algorithm to compute the contact forces and local deformation of a flexible
body intermittently hitting a rigid sphere. This allows engineering teams to
take local deformation in contact regions into account, and to add another
real life dimension to motion simulation. Typical applications for this new
functionality include sunroofs, roller bearings, telescopic shafts, valves,
timing chains, elevators, aircraft wing flap, latch mechanisms, etc.

"LMS Virtual.Lab Motion offers a complete and integrated solution to
realistically simulate the dynamics of mechanical systems, and accurately
determine the resulting internal dynamic loads and stresses," commented
Willy Bakkers, Executive Vice-President and General Manager of the LMS CAE
Division. "With the introduction of Rev 5, LMS Virtual.Lab Motion gains new
solver capabilities and efficient modeling techniques for the simulation of
complex mechanical assemblies. LMS Virtual.Lab Motion herewith extends its
capabilities to accurately simulate the dynamic performance of new designs
early in the development cycle."

About LMS:

LMS is an engineering innovation partner for companies in the automotive,
aerospace and other advanced manufacturing industries. LMS enables its
customers to get better products faster to market, and to turn superior
process efficiency to their strategic competitive advantage. LMS delivers a
unique combination of virtual simulation software, testing systems, and
engineering services. We are focused on the mission critical performance
attributes in key manufacturing industries, including structural integrity,
handling, safety, reliability, comfort and sound quality. Through our
technology, people and over 25 years of experience, LMS has become the
partner of choice for most of the leading discrete manufacturing companies
worldwide. LMS, a Dassault Systèmes Gold Partner, is certified to
ISO9001:2000 quality standards and operates through a network of
subsidiaries and representatives in key locations around the world.

LMS Press Contacts:

Europe:                                                United States:


Bruno Massa                                        Kimberly Winkler


LMS International                                        LMS North America


Tel +32 16 384 200                                Tel +1 248 952 5664



bruno.massa@lms.be bruno.massa@lms.be>



kimberly.winkler@lmsna.com sarah.zajas@lmsna.com>





Germany:                                        France:


Kerstin Schwenk                                        Myriam Degroux


LMS Deutschland                                        LMS France


Tel +49 7152 97 97 90                                Tel 01 69 35 19 20



kerstin.schwenk@lms-gmbh.de kerstin.werner@lms-gmbh.de>



myriam.degroux@lmsfrance.fr





Japan:                                                China:


Maki Hisano                                        Susan Wu


LMS Japan                                        LMS China


Tel +81 45 478 4800                                Tel +86 10 8497 6463



maki.hisano@lms-ja.co.jp maki.hisano@lms-ja.co.jp>



susan.wu@lmschina.com susan.wu@lmschina.com>





Korea:


Eun Young Suk        


LMS Korea


Tel +82 2 571 7246        



eunyoung.suk@lmsko.co.kr








Kim Winkler


Marketing Manager


LMS NA


Phone: 248-952-5664 x. 139


Fax: 248-952-1610


Web:  
www.lmsintl.com <
http://www.lmsintl.com>