Vibration test data from an operating 2‐kWe closed‐Brayton‐cycle (CBC) power conversion system (PCS) located at the NASA Glenn Research Center was used for a comparison with a dynamic disturbance model of the same unit. This effort was performed to show that a dynamic disturbance model of a CBC PCS can be developed that can accurately predict the torque and vibration disturbance fields of such class of rotating machinery. The ability to accurately predict these disturbance fields is required before such hardware can be confidently integrated onto a spacecraft mission. Accurate predictions of CBC disturbance fields will be used for spacecraft control/structure interaction analyses and for understanding the vibration disturbances affecting the scientific instrumentation onboard. This paper discusses how test cell data measurements for the 2‐kWe CBC PCS were obtained and the development of a dynamic disturbance model used to predict the vibration fields of the same unit.
Validation of a 2 kWe Closed‐Brayton‐Cycle Power Conversion System Mechanical Dynamics Model
SPACE TECHNOLOGY AND APPLICATIONS INT.FORUM-STAIF 2005: Conf.Thermophys in Micrograv;Conf Comm/Civil Next Gen.Space Transp; 22nd Symp Space Nucl.Powr Propuls.;Conf.Human/Robotic Techn.Nat'l Vision Space Expl.; 3rd Symp Space Colon.; 2nd Symp.New Frontiers ; 2005 ; Albuquerque, New Mexico (USA)
AIP Conference Proceedings ; 746 , 1 ; 750-761
2005-02-06
12 pages
Conference paper
Electronic Resource
English
Validation of a 2 kWe Closed-Brayton-Cycle Power Conversion System Mechanical Dynamics Model
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