重力傾斜安定化宇宙構造物に対する最短時間伸展制御(機械力学,計測,自動制御)

This paper is devoted to study time optimal control problem for deployment of a gravity gradient stabilized space structure. Schematic model of the space structure is a rigid main body equipped with mass-less booms tipped with point masses. Numerical results for three initial pitch angles show that time-optimal deployment control to eliminate pitch motion is the bang-bang control that consists of five phases; (a) simultaneous extension toward yaw and roll axis, (b) extension toward yaw axis, (c) suspension of extension, (d) extension toward roll axis, and finally (e) simultaneous extension toward yaw and roll axis, again.