Accession Number : ADA289424

Title :   Optimization of a Nutation Damper Attached to a Spin-Stabilized Satellite.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Hauboldt, Brady P.

PDF Url : ADA289424

Report Date : DEC 1994

Pagination or Media Count : 67

Abstract : This study uses linearized equations of motion for a rigid body with an attached spring-mass-damper to maximize the decay rate of a satellite's coning motion. An analysis of the numerical eigenvalues is presented which leads to an optimal relationship between relevant parameters: damper placement, spring constant, damping coefficient, system moments of inertia, and damper mass fraction. The coupled system's eigenvalues do not provide truly critical damping, thus the real eigenvalue parts are minimized in order to achieve damping which requires the minimum amount of time. A comparison between this optimal design method and a classical method concludes a noticeable improvement in damping performance for optimized systems.

Descriptors :   *ARTIFICIAL SATELLITES, MATHEMATICAL MODELS, OPTIMIZATION, EQUATIONS OF MOTION, NUMERICAL ANALYSIS, DAMPING, EIGENVECTORS, THESES, EIGENVALUES, PROBLEM SOLVING, SOLUTIONS(GENERAL), EMPLACEMENT, RIGIDITY, SATELLITE ATTITUDE, LINEAR ALGEBRAIC EQUATIONS, MOMENT OF INERTIA, SPIN STABILIZATION.

Subject Categories : Unmanned Spacecraft
      Operations Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE