Thermal control strategy of OMEGA SSPS based simultaneous shape and topology optimization of butterfly wing radiator

Abstract

This paper proposes an innovative thermal control strategy for obtaining optimum layout of Orb-shape Membrane Energy Gathering Array (OMEGA) space solar power station radiator based simultaneous shape and topology optimization. Firstly, a parameter in term of maximum heat dissipation per mass is introduced for the optimal configuration using the Particle Swarm optimization algorithm. Then, analogizing the butterfly wing vein and branch points, a better layout of heat transfer network is inspired to conduct. Based on this, the virtual temperature points are added for completely constructing bionic butterfly wing heat transfer network and the calculation method is derived and discussed in detail. Finally, the derived method is realized through topology optimization method and the validity is verified through comparison of thermal analysis results. Unlike other radiators design, the proposed method optimizes layout of radiator from both two aspects of configuration outside and bionic butterfly wing heat transfer network inside, which is meaningful for the future application.