Accession Number:

AD0645164

Title:

OPTIMIZED PERFORMANCE OF AN ARTICULATED GRAVITY GRADIENT SATELLITE AT SYNCHRONOUS ALTITUDE,

Descriptive Note:

Corporate Author:

TORONTO UNIV (ONTARIO) INST FOR AEROSPACE STUDIES

Personal Author(s):

• Hughes,P. C.

Report Date:

1966-11-01

Pagination or Media Count:

109.0

Abstract:

A geometrically and dynamically symmetrical articulated satellite is considered for possible application at synchronous altitudes. The perturbing influence of solar radiation pressure on the two vertical hinged booms is studied, and the small-angle equations of motion derived. From these equations, both the transient and steady-state pointing performance are optimized through a computer search. Pointing errors of the order of two degrees, and damping times less than one orbit are shown to be possible for a weight expenditure of forty-five pounds satellite payload weight 250 pounds. Author

Descriptors:

• *OPTIMIZATION
• *ATTITUDE CONTROL SYSTEMS
• *ARTIFICIAL SATELLITES
• ATTITUDE CONTROL SYSTEMS
• SATELLITE ATTITUDE
• GRAVITY
• SYNCHRONOUS SATELLITES
• EQUATIONS OF MOTION
• PERTURBATION THEORY

Subject Categories:

• Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE