Computer Science – Performance
Scientific paper
Nov 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992stia...9320299d&link_type=abstract
International Conference on Adaptive Structures, 3rd, San Diego, CA, Nov. 9-11, 1992, Paper, 21 p.
Computer Science
Performance
Aerospace Environments, Cranes, Large Space Structures, Manned Space Flight, Orbital Assembly, Lunar Bases, Space Exploration, Transfer Orbits
Scientific paper
A space crane concept is presented which is based on erectable truss hardware to achieve high stiffness and low mass booms and articulating-truss joints which can be assembled on orbit. The hardware is characterized by linear load-deflection response and is structurally predictable. The crane can be reconfigured into different geometries to meet future assembly requirements. Articulating-truss joint concepts with significantly different geometries are analyzed and found to have similar static and dynamic performance, which indicates that criteria other than structural and kinematic performance can be used to select a joint. Passive damping and an open-loop preshaped command input technique greatly enhance the structural damping in the space crane and may preclude the need for an active vibrations suppression system.
Dorsey John T.
Sutter Thomas R.
Wu Kung C.
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