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A velocity command stepper motor for CSI applicationThe application of linear force actuators for vibration suppression of flexible structures has received much attention in recent years. A linear force actuator consists of a movable mass that is restrained such that its motion is linear. By application of a force to the mass, an equal and opposite reaction force can be applied to a structure. The use of an industrial linear stepper motor as a reaction mass actuator is described. With the linear stepper motor mounted on a simple test beam and the NASA Mini-Mast, output feedback of acceleration or displacement are used to augment the structural damping of the test articles. Significant increases in damping were obtained for both the test beam and the Mini-Mast.
Document ID
19910009143
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sulla, Jeffrey L. (Lockheed Engineering and Sciences Co. Hampton, VA., United States)
Juang, Jer-Nan (NASA Langley Research Center Hampton, VA, United States)
Horta, Lucas G. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1991
Subject Category
Structural Mechanics
Report/Patent Number
NAS 1.15:102765
NASA-TM-102765
Meeting Information
Meeting: NASA/DOD CSI Conference
Location: Orlando, FL
Country: United States
Start Date: November 5, 1990
End Date: November 7, 1990
Accession Number
91N18456
Funding Number(s)
PROJECT: RTOP 590-14-61-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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