ASOP-3: A Program for the Minimum-Weight Design of Structures Subjected to Strength and Deflection Constraints
Abstract
This volume presents the results of an effort to modify, extend and improve the usefulness of ASOP (Automated Structural Optimization Program), originally documented in AFFDL-TR-70-118 and AFFDL TR-74-96. The new version of the program is named ASOP-3. The following improvements have been made: Composite laminates with as many as six fiber directions, which may be arbitrary, can be accommodated in both stress and deflection-constraint resizing. In stress-constraint resizing, a laminate element is treated as a unit, and criteria consistent with current design practice for composites are used. A deflection constraint generalized as a linear combination of translational displacements at several structural nodes can be applied. This permits the treatment of constraints on lifting-surface twist and camber. Multiple deflection constraints can be treated in a limited, but practically important, class of problems by multiple submissions of single-constraint cases. The program output has been extensively revised to make it more readable. Results obtained by application of the program to models of two sample structures, a swept wing and a bomber fin, are presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1976
- Accession Number
- ADB017334
Entities
People
- Gabriel Isakson
- Harry Pardo
Organizations
- Grumman