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Joint Langley Research Center/Jet Propulsion Laboratory CSI experimentThis paper describes a joint Control Structure Interaction (CSI) experiment in which Jet Propulsion Laboratory (JPL) damping devices were incorporated into the Langley Research Center (LaRC) Phase 0 Testbed. The goals of the effort were twofold: (1) test the effectiveness of the JPL structural damping methods in a new structure and (2) assess the feasibility of combining JPL local control methods with the LaRC multiple input multiple output global control methods. Six dampers (2 piezoelectric active members, 4 viscous dampers), placed in three different regions of the structure, produced up to 26 dB attenuation in target modes. The combined control strategy in which the JPL damping methods contributed local control action and the LaRC control scheme provided global control action, produced and overall control scheme with increased stability margins and improved performance. This paper presents an overview of the technologies contributed from the two centers, the strategies used to combine them, and results demonstrating the success of the damping and cooperative control efforts.
Document ID
19930066601
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Neat, Gregory W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
O'Brien, John F.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lurie, Boris J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Garnica, Angel
(JPL Pasadena, CA, United States)
Belvin, W. K.
(NASA Langley Research Center Hampton, VA, United States)
Sulla, Jeff
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Won, John
(Lockheed Engineering & Sciences Co. Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: Guidance and control 1992; Proceedings of the 15th Annual AAS Rocky Mountain Conference, Keystone, CO, Feb. 8-12, 1992 (A93-50576 21-18)
Publisher: Univelt, Inc.
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AAS PAPER 92-061
Accession Number
93A50598
Distribution Limits
Public
Copyright
Other

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