Simulation guides design of key subsystems for different engine configurations
Leuven, Belgium – July 29, 2005 – LMS International, the engineering innovation company, announced that LMS Virtual.Lab Motion software has been selected to simulate and optimize the complex dynamic performance of diesel engines at DAF Trucks N.V., a Netherlands-based manufacturer of medium and heavy-duty commercial vehicles. A subsidiary of Paccar Inc., DAF Trucks will use LMS Virtual.Lab in guiding the design of various configurations of diesel engines for their own commercial vehicles as well as for third-party applications such as buses, coaches and power generators.
LMS Virtual.Lab Motion allows DAF engineers to accurately predict key engine attributes including torsion vibrations on the crankshaft and camshaft, flywheel whirl, bearing loads and camshaft torque. Dynamic stresses can be evaluated throughout the powertrain system. Also, loads can be used as input to LMS Virtual.Lab Noise and Vibration in studying engine vibrations and analyzing potential sources of noise problems. In this way, DAF Trucks can quickly evaluate the performance envelope of different engine configurations and balance often-conflicting requirements including drive power, fuel consumption, weight, reliability, structural vibration and engine sound - all done without expensive and time-consuming prototype testing.
“DAF Trucks selected LMS Virtual.Lab Motion for its powerful modeling and simulation capabilities,” commented Eric van Velthooven, research engineer at DAF Trucks. “The software enables us to accurately simulate complex engine mechanisms and to quickly identify and correct potential problem areas up front in design.”
According to van Velthooven, the use of parameterized models of powertrain subsystems such as the gear train, camshaft, flywheel, and hyrdo-dynamic bearings allows engineers to easily modify designs and quickly evaluate alternatives. Tight integration provided by LMS Virtual.Lab between motion simulation and other simulation disciplines supports DAF in assessing the overall impact of these design modifications on engine performance, vibration and fatigue life.
“With LMS Virtual.Lab Noise and Vibration, dynamic loads from motion simulation can be readily applied to a complete engine assembly model. As a result, we can accurately assess the NVH performance of a specific engine configuration and eliminate the root causes of specific noise or vibration problems,” explained Eric van Velthooven. “The integration of key simulation processes and disciplines in LMS Virtual.Lab allows us to gain valuable insight into the key performance attributes early in development and to efficiently configure our engines for specific applications. From a business perspective, faster turnaround of refined designs for multiple product configurations gives us an advantage we can certainly leverage in the globally competitive diesel engine market.”
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:
Bruno Massa
LMS International
Tel +32 16 384 200
bruno.massa@lms.be
Bruno Massa
LMS International
Tel +32 16 384 200
bruno.massa@lms.be
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LMS North America
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LMS Deutschland
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LMS France
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LMS Japan
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Susan Wu
LMS China
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LMS Korea
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eunyoung.suk@lmsko.co.kr
