Product category:
FEA and structural analysis software
News Release from: NEi Software | Subject: NEi Nastran V9.1
Edited by the Engineeringtalk Editorial
Team on 08 August 2007
Software simulates surface contacts
ASCG automatically finds and sets up the appropriate contact between different bodies within a specified proximity.
Noran Engineering (NEi), a developer of Nastran engineering software, announced a major improvement in the ability to create models that simulate true surface-to-surface contact Automated Surface Contact Generation (ASCG) is included in the V9.1 release of NEi Nastran
This article was originally published on Engineeringtalk on 22 Nov 2007 at 8.00am (UK)
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Noran Engineering (NEi) will soon unveil NEi Nastran V9.1, suited to simulating the behaviour of structures with characteristics that have proven difficult, time consuming, and expensive to model.
Engineers involved in computer modelling and analysis of structures containing discontinuous parts often find that getting realistic results can be very difficult, exceedingly time consuming, or simply not possible using traditional finite element analysis (FEA) tools.
ASCG automatically finds and sets up the appropriate contact between different bodies within a specified proximity.
This feature can be a major factor in productivity with the opportunity to cut run times from hours to minutes.
It should also be noted that ASCG can be used on legacy models.
Using ASCG a user can easily add surface contact to an existing Nastran model input file or replace gap contact with the more robust surface contact.
The process is completely automated and only requires a single command.
Unlike automated contact in other pre and post processors, NEi's ASCG works at the FEA level with an existing Nastran model allowing for true legacy model support.
ASGC opens the way to achieving much higher levels of real world fidelity for virtual testing.
In particular, a wide range of assembly scenarios can be addressed using NEi Nastran's extensive suite of contact capabilities which covers sliding, welded, and free movement between surfaces and includes modelling difficult features like dissimilar shell meshes from extracted mid plane models, shell face to shell edge with or without gaps, mid surface meshes, and offset welds.
ASCG has been credited with productivity gains and better quality models in diverse applications ranging from large ship models to production fixtures.
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