NDLI: Passive isolation/damping system for the hubble space telescope reaction wheels

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Passive isolation/damping system for the hubble space telescope reaction wheels

Content Provider	NASA Technical Reports Server (NTRS)
Author	Hasha, Martin D.
Copyright Year	1987
Description	NASA's Hubble Space Telescope contain large, diffraction limited optics with extraordinary resolution and performance for surpassing existing observatories. The need to reduce structural borne vibration and resultant optical jitter from critical Pointing Control System components, Reaction Wheels, prompted the feasibility investigation and eventual development of a passive isolation system. Alternative design concepts considered were required to meet a host of stringent specifications and pass rigid tests to be successfully verified and integrated into the already built flight vehicle. The final design employs multiple arrays of fluid damped springs that attenuate over a wide spectrum, while confining newly introduced resonances to benign regions of vehicle dynamic response. Overall jitter improvement of roughly a factor of 2 to 3 is attained with this system. The basis, evolution, and performance of the isolation system, specifically discussing design concepts considered, optimization studies, development lessons learned, innovative features, and analytical and ground test verified results are presented.
File Size	6054147
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19870020440
Archival Resource Key	ark:/13960/t59d1tv4j
Language	English
Publisher Date	1987-05-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Reaction Wheels Pointing Control Systems Vibration Damping Vibration Isolators Structural Vibration Hubble Space Telescope Springs Elastic Control Stability Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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