| 摘要 |
PROBLEM TO BE SOLVED: To stabilize attitude of a moving body by dynamically controlling the center of gravity of the moving body such as a re-entry space vehicle and by correcting a shift in the center of gravity that cannot be predicted in advance.SOLUTION: A center of gravity control apparatus 2 of a re-entry space vehicle 1 comprises an angular acceleration sensor 3 detecting angular acceleration of the re-entry space vehicle 1, a ballast calculation device 5 calculating a moving direction and a distance of a ballast 7 required for setting the center of gravity of the re-entry space vehicle 1 to a predetermined position on the basis of the angular acceleration, and a moving device 8 adjusting the center of gravity of the moving body by moving the ballast 7 in accordance with the calculated moving direction and the distance. |
