Accession Number : ADA198143

Title :   A New Approach to the Analysis and Control of Large Space Structures. Phase 1.

Descriptive Note : Final rept. 15 Oct 87-14 Mar 88,

Corporate Author : GENERAL ANALYTIC CORP ATHENS GA

Personal Author(s) : Adomian, George

PDF Url : ADA198143

Report Date : 12 Mar 1988

Pagination or Media Count : 129

Abstract : The large structures contemplated would be constructed in space. Because of the limitations on launching massive payloads, it is clear that these structures will be made of lightweight material and will necessarily be flexible and easily excited into vibrations. Analytical problems will arise in designing large space structures in which physically realistic and accurate solutions will be critical. Such designs must consider weight, sizes, stiffness, thermal and mechanical distortions, stresses due to gravity and positioning thrusts. Some specific analytical problems will involve vibration, heating and cooling, multidimensional control, and structural problems arising from random support motion and random fluctuations of the system dynamic properties. Keywords: Decomposition method, Distributed control, Heating, Space stations, Matrix Riccati equation, Nonlinear stochastic control, Partial differential equations, Vibration, Spacecraft. (jes)

Descriptors :   *COOLING, *SPACE STATIONS, *SPACECRAFT, CONTROL, DECOMPOSITION, DISTORTION, DISTRIBUTION, DYNAMICS, GRAVITY, LAUNCHING, LIGHTWEIGHT, LIMITATIONS, MECHANICAL PROPERTIES, MOTION, NONLINEAR SYSTEMS, PARTIAL DIFFERENTIAL EQUATIONS, POSITION(LOCATION), RANDOM VARIABLES, STIFFNESS, STOCHASTIC CONTROL, STRESSES, STRUCTURAL PROPERTIES, STRUCTURES, THERMAL PROPERTIES, THRUST, VIBRATION, SPECTROSCOPY

Subject Categories : Manned Spacecraft
      Unmanned Spacecraft
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE