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Manufacturing industry news
News Release from: LMS International | Subject: Virtual.Lab Motion
Edited by the Manufacturingtalk Editorial
Team on 21 September 2005
60% time savings for complex simulation
models
LMS International has extended LMS Virtual.Lab Motion with solver technologies and new modeling capabilities to simulate real-life system dynamics.
LMS International has extended LMS Virtual.Lab Motion with solver technologies and new modeling capabilities to simulate real-life system dynamics The new Auto-Recursive Solver is said to record up to 60 per cent time savings in solving complex simulation models with long series of linked components and high number of contact points between components
This article was originally published on Manufacturingtalk on 3 Feb 2005 at 8.00am (UK)
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As a result, Virtual.Lab Motion is claimed to allow users to accurately simulate the internal forces and accelerations of those mechanisms, which are typically very difficult to measure through prototype tests.
The Auto-Recursive Solver takes advantage of repeated bodies connected by revolute, rev-rev, or rev-trans kinematic constraints.
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When that 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 believes that Virtual.Lab Motion offers an implementation of the Auto-Recursive Solver, since it coexists with the traditional motion solver in a single, integrated system.
The user benefits from the performance and accuracy of both solver products combined in a single simulation model.
Virtual.Lab Motion Rev 5 combines the deployment of the Auto-Recursive Solver with a new Sub Mechanisms capability.
That 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.
That makes the resulting simulation models smaller and more efficient to solve, resulting in less memory consumption and faster calculation runs.
With Rev 5, 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.
That is said to allow engineering teams to take local deformation in contact regions in to account and to add another real life dimension to motion simulation.
T ypical applications for the new functions include sunroofs, roller bearings, telescopic shafts, valves, timing chains, elevators, aircraft wing flap and latch mechanisms, for instance.
Willy Bakkers, executive vice-president and general manager of the LMS CAE Division, commented: "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.
With the introduction of Rev 5, Virtual.Lab Motion gains new solver capabilities and efficient modelling techniques for the simulation of complex mechanical assemblies. Request a free brochure from LMS International ...
Virtual.Lab Motion extends its capabilities to accurately simulate the dynamic performance of new designs early in the development cycle.".
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