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Design, analysis, and testing of high frequency passively damped strutsObjectives of the research are: (1) to develop design requirements for damped struts to stabilize control system in the high frequency cross-over and spill-over range; (2) to design, fabricate and test viscously damped strut and viscoelastically damped strut; (3) to verify accuracy of design and analysis methodology of damped struts; and (4) to design and build test apparatus, and develop data reduction algorithm to measure strut complex stiffness. In order to meet the stringent performance requirements of the SPICE experiment, the active control system is used to suppress the dynamic responses of the low order structural modes. However, the control system also inadvertently drives some of the higher order modes unstable in the cross-over and spill-over frequency range. Passive damping is a reliable and effective way to provide damping to stabilize the control system. It also improves the robustness of the control system. Damping is designed into the SPICE testbed as an integral part of the control-structure technology.
Document ID
19930009646
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yiu, Y. C. (Lockheed Missiles and Space Co. Sunnyvale, CA, United States)
Davis, L. Porter (Lockheed Missiles and Space Co. Sunnyvale, CA, United States)
Napolitano, Kevin (Lockheed Missiles and Space Co. Sunnyvale, CA, United States)
Ninneman, R. Rory (Lockheed Missiles and Space Co. Sunnyvale, CA, United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1993
Publication Information
Publication: NASA. Langley Research Center, The Fifth NASA(DOD Controls-Structures Interaction Technology Conference, Part 1
Subject Category
Structural Mechanics
Accession Number
93N18835
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19930009629Collected WorksThe Fifth NASA/DOD Controls-Structures Interaction Technology Conference, part 1
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