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An electromechanical attenuator/actuator for Space Station dockingThe development of a docking system for aerospace vehicles has identified the need for reusable and variably controlled attenuators/actuators for energy absorption and compliance. One approach to providing both the attenuator and the actuator functions is by way of an electromechanical attenuator/actuator (EMAA) as opposed to a hydraulic system. The use of the electromechanical devices is considered to be more suitable for a space environment because of the absence of contamination from hydraulic fluid leaks and because of the cost effectiveness of maintenance. A smart EMAA that uses range/rate/attitude sensor information to preadjust a docking interface to eliminate misalignments and to minimize contact and stroking forces is described. A prototype EMAA was fabricated and is being tested and evaluated. Results of preliminary testing and analysis already performed have established confidence that this concept is feasible and will provide the desired reliability and low maintenance for repetitive long term operation typical of Space Station requirements.
Document ID
19870020445
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stokes, Lebarian
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Glenn, Dean
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Carroll, Monty B.
(Lockheed Engineering and Management Services Co., Inc. Houston, Tex., United States)
Date Acquired
September 5, 2013
Publication Date
May 1, 1987
Publication Information
Publication: The 21st Aerospace Mechanisms Symposium
Subject Category
Spacecraft Design, Testing And Performance
Accession Number
87N29878
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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