Effect of the mass center shift for force-free flexible spacecraft
Abstract
For a spinning flexible spacecraft the mass center generally shifts relative to the nominal undeformed position. It is thought that this shift of center complicates spacecraft stability analysis. It is proved, on the basis of results achieved by Meirovitch and Calico (1972), that for the general class of force-free single-spin flexible spacecraft it is possible to ignore this shift of center without affecting the stability criteria in any significant way. A new theorem on inequalities for quadratic forms is proved to demonstrate the validity of the stability analysis.
- Publication:
-
AIAA Journal
- Pub Date:
- November 1975
- DOI:
- 10.2514/3.7031
- Bibcode:
- 1975AIAAJ..13.1535M
- Keywords:
-
- Flexible Bodies;
- Spacecraft Stability;
- Spin Dynamics;
- Structural Weight;
- Angular Velocity;
- Dynamic Response;
- Elastic Deformation;
- Mass Distribution;
- Motion Stability;
- Orbital Elements;
- Spacecraft Orbits;
- Astrodynamics