Analysis of an on-off modulated clutch servomechanism

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Author
Duncan, William B.
Surman, William V.
Date
1960Advisor
Strum, Robert D.
Metadata
Show full item recordAbstract
This thesis presents an analysis of a nonlinear servomechanism,,
The nonlinear control device is an electromechanical
spring clutch designed by the Propeller Division
of the Curtis s-Wright Corporation for use in both missiles
and manned aircraft. A mathematical representation of the system is first
derived. Then an analytic technique is presented which may
be employed to predict such closed-loop response characteristics
as gain, phase shift, and bandwidth. Investigations are made regarding both the absolute
stability and the relative stability of the system, however,
only limited conclusions are reached due to the lack of
established stability criteria for a system of this type.
Recommendations are made for further study of the stability
of this system for the purpose of establishing such criteria. The ground work for this thesis, including the preliminary
analysis and all of the equipment tests, was accomplished
by the authors during the summer of I960 while on an
industrial experience tour at the Missiles and Space Division
of the Lockheed Aircraft Corporation, Sunnyvale, California.
The authors are extremely grateful for having had the opportunity
to do this work at Lockheed Missiles and Space Division,
Particularly, appreciation is expressed to Mr. Fred A. Schupan
of Lockheed, for his very able guidance and assistance throughout the conduct of the analysis. Appreciation is also
expressed to Messrs. Richard Lawhorn, Kenneth Alder, and
Charles Cox, of Lockheed, for their assistance on various
aspects of this work. The authors gratefully acknowledge the advice and assistance
given by Professor Robert D. Strum of the United States
Naval Postgraduate School during the writing of this paper.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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