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Actuator participation in a bending mode identification systemA hydraulic actuator designed for a thrust vector control system used as a shaker for a vehicle to determine the bending mode frequencies is described. The actuator is used as the prime mover and the frequency sensor for the flexible vehicle in a test tower. Advantages in using the actuator piston position with respect to a commanded position to obtain the bending mode frequencies are shown.
Document ID
19720025730
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Thompson, Z. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Davis, P. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 2, 2013
Publication Date
September 1, 1972
Subject Category
Instrumentation And Photography
Report/Patent Number
NASA-TM-X-64689
Report Number: NASA-TM-X-64689
Accession Number
72N33380
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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