NDLI: Gear fault diagnostics integrated in the motion servo drive for electromechanical actuators

Content Provider	IEEE Xplore Digital Library
Author	Kum-Kang Huh Lorenz, R.D. Nagel, N.J.
Copyright Year	2009
Description	Author affiliation: GE Global Research Center, 1 Research Circle, Niskayuna, NY 12309 USA (Kum-Kang Huh) \|\| University of Wisconsin - Madison, 1415 Engineering Drive, 53706, USA (Lorenz, R.D.) \|\| Woodward MPC, 7320 N. Linder Ave., Skokie, IL 60077 USA (Nagel, N.J.)
Abstract	This research presents contributions made in gear fault diagnostics for motion servos with continuously variable speed as used for aerospace and automotive electromechanical actuators. As the first step for motion servo diagnostics, an observer-based kinematic error estimator is developed whereby this estimated kinematic error is proposed as an operating point independent gear surface fault signature. As the second step, a signal processing method is developed for real-time implementation of spatial domain re-sampling of regular time domain samples and this method is combined with spatial domain synchronous averaging methods, which are shown to be very effective in filtering out unwanted asynchronous signatures. Lastly, a motion servo actuator with a gear surface failure is tested, and the proposed methods are shown to successfully extract the kinematic error profiles of the defective gear during motion servo operation over a wide range of continuously varying velocity.
Starting Page	2255
Ending Page	2262
File Size	1269137
Page Count	8
File Format	PDF
ISBN	9781424428939
DOI	10.1109/ECCE.2009.5316080
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Actuators Gear fault diagnostics Torque Error analysis Kinematic error estimation Motion estimation Synchronous averaging Automotive engineering Gears Motion servo drive Spatial domain sampling Kinematics Signal processing Servomechanisms Testing
Content Type	Text
Resource Type	Article

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