New low temperature thermal insulation technology should be deeply studied (including the process of thermal insulation structure materials, etc., and applied to the thermal shield support and other components of the radiant cooler, to develop a highly efficient radiant cooler that can greatly improve the refrigeration performance compared with the traditional radiant cooler when the volume weight is the same or the increase is small). These problems include mechanical properties and reliability of new materials and process structures, pollution control, coupled ground assembly and testing of heat pipes, etc.
At present, the pollution control technology of radiant cooler during ground storage, transportation and on orbit operation needs to be improved and developed to further improve its working life. In addition, the matching and coupling technology between the radiant cooler and the infrared detector of multi band, multi-channel and large area array, heat pipe technology, as the high efficiency thermo mechanical coupling technology involved in the pre stage refrigeration of other refrigeration methods, also needs to be further studied and developed to broaden the application field of space radiant refrigeration technology.
Due to the advantages of fiber materials such as high strength, light weight, corrosion resistance, fatigue resistance and convenient construction, the use of fiber reinforced polymer (FRP) for structural strengthening has attracted increasing attention. The experimental results of beams strengthened with fiber show that the bearing capacity and stiffness of beams strengthened with externally bonded fiber are significantly improved, but the section ductility is significantly reduced. In the aspect of cantilever plate reinforcement, the feasibility and anchorage method of fiber reinforced cantilever plate are discussed, and the bearing capacity of the strengthened cantilever plate with additional anchorage on the plate is studied.