Configuration-shape-size optimization of space structures by material redistribution

Details Configuration-shape-size optimization of space structures by material redistribution Configuration-shape-size optimization of space structures by material redistribution

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ssdm.conf.2934v&link_type=abstract

In: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 34th and AIAA/ASME Adaptive Structures For

Physics

Large Space Structures, Optimization, Planetary Structure, Spacecraft Configurations, Structural Design, Algorithms, Finite Element Method, Linear Systems, Stiffness Matrix, Stress Distribution

Scientific paper

This project investigates the configuration-shape-size optimization (CSSO) of orbiting and planetary space structures. The project embodies three phases. In the first one the material-removal CSSO method introduced by Kikuchi and Bendsoe (KB) is further developed to gain understanding of finite element homogenization techniques as well as associated constrained optimization algorithms that must carry along a very large number (thousands) of design variables. In the CSSO-KB method an optimal structure is 'carved out' of a design domain initially filled with finite elements, by allowing perforations (microholes) to develop, grow and merge. The second phase involves 'materialization' of space structures from the void, thus reversing the carving process. The third phase involves analysis of these structures for construction and operational constraints, with emphasis in packaging and deployment. The present paper describes progress in selected areas of the first project phase and the start of the second one.

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