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Verification of a 2 kWe Closed-Brayton-Cycle Power Conversion System Mechanical Dynamics ModelVibration 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, the development of a dynamic disturbance model used to predict the transient torque and steady state vibration fields of the same unit, and a comparison of the two sets of data.
Document ID
Document Type
Conference Paper
Ludwiczak, Damian R.
(NASA Glenn Research Center Cleveland, OH, United States)
Le, Dzu K.
(NASA Glenn Research Center Cleveland, OH, United States)
McNelis, Anne M.
(NASA Glenn Research Center Cleveland, OH, United States)
Yu, Albert C.
(NASA Glenn Research Center Cleveland, OH, United States)
Samorezov, Sergey
(ZIN Technologies, Inc. United States)
Hervol, Dave S.
(Analex Corp. Brook Park, OH, United States)
Date Acquired
September 7, 2013
Publication Date
November 1, 2005
Subject Category
Energy Production And Conversion
Report/Patent Number
Meeting Information
Meeting: Space Technology and Applicaitons International Forum (STAIF-2005)
Location: Albuquerque
Country: Mexico
Start Date: February 13, 2005
End Date: February 17, 2005
Funding Number(s)
WBS: WBS 22-973-80-10
Distribution Limits
Work of the US Gov. Public Use Permitted.
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