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Application of Newton modified barrier method (NMBM) to structural optimizationThis paper presents the application of the NMBM to obtain a minimum weight structure with constraints on displacements and minimum sizes. The solution to the problem is obtained via minimizing the Modified Barrier Function (MBF) at each step by using the Newton Method and updating Lagrange multipliers. The Lagrange multipliers are updated by using the value of the constraints at the minimum of the MBF. Three truss problems with a different number of design variables are solved. The convergence to the minimum weight design was found to be monotonic and the algorithm is potentially robust for solving problems with a large number of design variables.
Document ID
19920051931
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Khot, N. S.
(USAF, Flight Dynamics Directorate, Wright-Patterson AFB OH, United States)
Polyak, R.
(NASA Lewis Research Center Cleveland, OH, United States)
Schneur, R.
(IBM Thomas J. Watson Research Center Yorktown Heights, NY, United States)
Berke, L.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 92-2498
Meeting Information
Meeting: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Location: Dallas, TX
Country: United States
Start Date: April 13, 1992
End Date: April 15, 1992
Accession Number
92A34555
Distribution Limits
Public
Copyright
Other

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