Spacecraft Solar Array Structures

Solar arrays are critical components of spacecraft power systems, providing the energy needed for propulsion, communications, and mission operations. This post explores the structural considerations, design requirements, and engineering challenges involved in creating solar arrays for spacecraft. From the foundational principles that guide design decisions to specific case studies of our Odin and DeepSpace-2 spacecraft, we’ll examine how solar arrays must balance competing demands of power generation, structural integrity, mass limitations, and deployment reliability. Understanding these complex trade-offs is essential for developing solar array systems that can withstand the harsh conditions of launch and space environments while delivering the power needed for successful mission operations. For DeepSpace-2, the solar array design utilizes carbon composite honeycomb core sandwich panels to optimize power generation and minimize overall weight. Each solar array wing consists of 3 panels connected by hinges, allowing for stowage and deployment while conforming to launch vehicle inclusion volumes.