大形展開アンテナ地上展開試験法の検討

抄録

The ground testing of large antenna deployment is important in verifying it's deployment capability in geostationaly orbit. But the exact simulation of deployment motion by ground testing is significantly inhibited due to prominent gravitational or atmospheric effects on deployment motion. As a part of verification activity, the object of this study is to estimate these ground effects on deployment motion quantitatively and to define the best method for ground deployment tests. Ground testing equipment was constructed in such a way that gravity effects were canceled by means of suspending reflector from the point at 10m high. Analytical results with careful consideration to friction torque and air drug torque obtained in the simple model tests closely corresponding to the results of ground testing for actual antenna reflector.