Aeroelastic Optimization with Multiple Constraints.
Abstract
Two optimality-criterion algorithms for treating problems with multiple behavioral constraints are described. The first employs slack variables to recast inequality constraints as equality constraints, so that the optimization procedure can be based on an earlier one developed for multiple equality constraints. The second is based on earlier work that uses Gauss-Seidel iteration to identify the active constraints by identifying the set of positive Lagrange multipliers. Both methods are applied to some simple test cases with two design variables, and then the slack-variable algorithm is applied to optimize the weight of a biconvex sandwich wing under various combinations of flutter and frequency constraint. The behavior of this algorithm is discussed and recommendations are given for future work. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1980
- Accession Number
- ADA090775
Entities
People
- S. C. Mcintosh Jr.
Organizations
- Nielsen Engineering & Research (United States)