Applications of a quadratic extended interior penalty function for structural optimizationA quadratic extended interior penalty function formulation especially well suited for second-order unconstrained optimization procedures is presented. Analytical derivatives of constraints and an approximate analysis technique are used. Minimum-mass design results are presented which indicate that the combination of these procedures can help make mathematical programming a useful optimization tool for large-order structural design problems with a large number of design variables and multiple constraints. Examples include statically loaded high- and low-aspect-ratio wings simultaneously subjected to stress, displacement, minimum gage and, in some cases, maximum strain constraints.
Document ID
19750048582
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Haftka, R. T. (Technion - Israel Institute of Technology Haifa, Israel)
Starnes, J. H., Jr. (NASA Langley Research Center Structures and Dynamics Div., Hampton, Va., United States)
Date Acquired
August 8, 2013
Publication Date
May 1, 1975
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 75-764
Meeting Information
Meeting: AIAA, ASME, and SAE, Structures, Structural Dynamics, and Materials Conference