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Weight minimization of a support structureThis paper addresses the weight minimization of a circular plate-like structure which resulted in a 26 percent weight reduction. The optimization was performed numerically with the COPES/ADS program using the modified method of feasible directions. Design parameters were the inner thickness and outer thickness of the plate with constraints on maximum yield stress and maximum transverse displacement. Also, constraints were specified for the upper and lower bounds of the fundamental frequency and plate thicknesses. The MSC/NASTRAN finite element program was used for the evaluation of response variables. Original and final designs of the plate were tested using an Instron tension-compression machine to compare finite element results to measured strain data. The difference between finite element strain components and measured strain data was within engineering accuracy.
Document ID
19940004703
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kluberdanz, Donald J.
(Naval Underwater Systems Center New London, CT, United States)
Segalman, Helaine J.
(Naval Underwater Systems Center New London, CT, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1990
Publication Information
Publication: NASA. Langley Research Center, The Third Air Force(NASA Symposium on Recent Advances in Multidisciplinary Analysis and Optimization
Subject Category
Structural Mechanics
Accession Number
94N71458
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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