TY - JOUR
T1 - Transformable spacecraft
T2 - 69th International Astronautical Congress: #InvolvingEveryone, IAC 2018
AU - Chujo, Toshihiro
AU - Sugawara, Yoshiki
AU - Satou, Yasutaka
AU - Otsuki, Masatsugu
AU - Ohashi, Kaoru
AU - Kubo, Yuki
AU - Hernando-Ayuso, Javier
AU - Tsumura, Kohji
AU - Matsuura, Shuji
AU - Matsumoto, Jun
AU - Kawaguchi, Junichiro
N1 - Publisher Copyright:
Copyright © 2018 by the International Astronautical Federation (IAF). All rights reserved.
PY - 2018
Y1 - 2018
N2 - As an innovative spacecraft system, a transformable spacecraft is proposed, which consists of multiple bodies connected with each other. They are equipped with actuators that move them relatively within a certain range of angle. The shape of the bodies is arbitrary, and the simplest is panel shape, for example. Supposing a transformable spacecraft consisting of a number of panels, they can be folded to be compact as a whole, unfolded to configure a large plane, and recomposed to configure various kinds of three-dimensional shape. The system enables a single spacecraft to have multiple functions by transforming the shape. A distinctive characteristic of a transformable spacecraft is its capability of performing nonholonomic attitude control. By transforming to another shape and transforming back to the original shape in a different path, the attitude is changed even if the shape is unaltered. This nonholonomic control is realized only by internal torque, and does not require any fuel consumption. We introduce the concept of a transformable spacecraft and its applications to missions, utilizing the nonholonomic control. For example, combining the function of variable-shape structure with the nonholonomic control, a multifunction space telescope can be realized orbiting around the Sun-Earth Lagrange point.
AB - As an innovative spacecraft system, a transformable spacecraft is proposed, which consists of multiple bodies connected with each other. They are equipped with actuators that move them relatively within a certain range of angle. The shape of the bodies is arbitrary, and the simplest is panel shape, for example. Supposing a transformable spacecraft consisting of a number of panels, they can be folded to be compact as a whole, unfolded to configure a large plane, and recomposed to configure various kinds of three-dimensional shape. The system enables a single spacecraft to have multiple functions by transforming the shape. A distinctive characteristic of a transformable spacecraft is its capability of performing nonholonomic attitude control. By transforming to another shape and transforming back to the original shape in a different path, the attitude is changed even if the shape is unaltered. This nonholonomic control is realized only by internal torque, and does not require any fuel consumption. We introduce the concept of a transformable spacecraft and its applications to missions, utilizing the nonholonomic control. For example, combining the function of variable-shape structure with the nonholonomic control, a multifunction space telescope can be realized orbiting around the Sun-Earth Lagrange point.
KW - Mission analysis
KW - Nonholonomic control
KW - Robotics
KW - Spacecraft system
UR - http://www.scopus.com/inward/record.url?scp=85065342721&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85065342721
SN - 0074-1795
VL - 2018-October
JO - Proceedings of the International Astronautical Congress, IAC
JF - Proceedings of the International Astronautical Congress, IAC
Y2 - 1 October 2018 through 5 October 2018
ER -