Dynamic coupling of gross and fine motions of a flexible spinning free rocket
Abstract
The dynamic coupling of the gross and fine motions of a flexible, spinning, free rocket is studied. The gross motion consists of the rotation and translation of the rocket as a whole, while the fine motion consists of transverse bending of the rocket. Equations governing the coupled motion, on and off a rigid launcher, are derived on the basis of a fairly general model of the rocket. The equations are simplified by considering a slender, essentially uniform rocket model and the method of assumed modes is used to obtain, for a uniform rocket model, approximate ordinary differential equations, which are solved numerically. Results are presented which agree qualitatively with experimental data.
- Publication:
-
Atmospheric Flight Mechanics Conference
- Pub Date:
- 1977
- Bibcode:
- 1977atfm.conf..182C
- Keywords:
-
- Bending Vibration;
- Rocket Flight;
- Rotating Bodies;
- Translational Motion;
- Vibration Effects;
- Angular Velocity;
- Equations Of Motion;
- Integral Equations;
- Matrices (Mathematics);
- Rocket Launchers;
- Astrodynamics