Lightweight Design and Verification of Electrostatic Analyzer for Space Exploration

Aiming at the lightweight requirement of space exploration load, the electrostatic analyzer for space plasma exploration is taken as the research object, and the lightweight design and verification are carried out. In the selection of materials and processing methods, additive manufacturing, a new processing method, is fully used breaking the traditional idea of pursuing low-density materials in lightweight design. By comparing the weight and mechanical performance of equipment under various materials and processing methods, aluminum alloy is determined as the main material and 3D printing as the main processing method. In the aspect of structure design, based on the advantages of 3D printing processing, the structural thickness of each part of the equipment is reduced, and stiffeners is appropriately set to solve the problem that the thin wall is prone to deform during post-processing. The mass of the equipment designed in the above scheme is reduced to 1.2 kg, which is 45% lower than that of the equipment using magnesium alloy and conventional processing methods (2.2 kg). Taking the identification-level mechanical test conditions of typical aerospace missions as input, the finite element simulation of the design model was carried out, and the physical processing, assembly and mechanical tests were completed to verify the anti-mechanical properties of the design.