Biologically Inspired Thermal-Structural Satellite Panels

Recently, there has been a surge in interest in biologically-inspired structures where natural structures are used to provide guidance to improve overall performance of aerospace systems. In particular, the incorporation of circulatory systems to significantly improve the material and physical properties of the system or enhance the system by adding a new capability such as thermal management is of interest. This paper details a “symbiotic” solution where thermal management functionality is embedded within the structure of the satellite. This approach is based on the flight proven and structurally efficient isogrid architecture with the addition of fluid channels embedded in the ribs and face-sheet to form an integrated circulatory system. The use of combined fluidic-structural systems has enormous potential for satellite thermal management. The conceptual design, analysis, and optimization of a reconfigurable thermal-structural panel for satellite applications will be presented. The focus will be on the fluidic chambers integrated into the ribs of the panel, the distribution system in the face-sheets of the panel, and the passive micro valve used to control flow within the system.