Accession Number : AD0657149

Title :   THEORY OF THE FREE GYRO,

Corporate Author : JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Personal Author(s) : Jacques, James R.

Report Date : 25 OCT 1956

Pagination or Media Count : 28

Abstract : An analogy between the free gyro and the generalized governor treated by Minorsky is found to exist, prompting the phase space representation. Various types of nutation phase space trajectories are represented and 'dual' trajectories discovered and discussed. The intimate relationship between nutation and precession is examined, producing drift as a necessary consequence of the asymmetry of nutation trajectories. Choosing specific gyro parameters and several levels of gyro excitation, a satisfactory comparison of the two methods of obtaining gyro drift is made. (Author)

Descriptors :   (*GYROSCOPES, THEORY), GIMBALS, EQUATIONS OF MOTION, GRAPHICS, DRIFT.

Subject Categories : Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE