衛星搭載用大形アンテナの振動特性に及ぼす空気と重力の影響

抄録

This paper describes the effects of air and gravity on the vibration characteristics of large satellite antennas. A numerical study is presented for the large deployable antenna of the Japanese Engineering Test Satellite VI (ETS-VI). A method using effective mass is proposed to identify vibration modes. Mode identification shows that both air and gravity have little influence on vibration modes. It is also shown that variation in natural frequencies due to the air and gravity effects depends on the their modes.