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Implementation of SEREP into LLNL Dyna3d for global/local analysis

Author: David A Hopkins; Michael A Minnicino; U.S. Army Research Laboratory.
Publisher: Aberdeen Proving Ground, MD : U.S. Army Research Laboratory, [2005]
Series: ARL-TR (Aberdeen Proving Ground, Md.), 3569.
Edition/Format:   eBook : Document : National government publication : EnglishView all editions and formats
Summary:
Reduction methods are used to reduce the number of degrees of freedom in a finite-element (FE) model at the expense of high-fidelity solutions. The System Equivalent Reduction/Expansion Process (SEREP) is an attractive reduction technique since it can preserve the modal fidelity of the FE model up to a user-defined level. This capability allow for a more accurate representation of the physical structure. In this  Read more...
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Material Type: Document, Government publication, National government publication, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: David A Hopkins; Michael A Minnicino; U.S. Army Research Laboratory.
OCLC Number: 74280032
Notes: Title from title screen (viewed April 2, 2010).
"August 2005."
Description: 1 online resource (iv, 27 pages) : illustrations.
Series Title: ARL-TR (Aberdeen Proving Ground, Md.), 3569.
Responsibility: David A. Hopkins and Michael A. Minnicino II.

Abstract:

Reduction methods are used to reduce the number of degrees of freedom in a finite-element (FE) model at the expense of high-fidelity solutions. The System Equivalent Reduction/Expansion Process (SEREP) is an attractive reduction technique since it can preserve the modal fidelity of the FE model up to a user-defined level. This capability allow for a more accurate representation of the physical structure. In this report, the feasibility of incorporating SEREP in the FE method for both discrete spring-mass-damper and distributed systems is explored. Modeling and numerical issues related to using SEREP as a superelement technique are examined and discussed.

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