Title
Adaptive sinusoidal disturbance cancellation for precise pointing of stewart platforms
Abstract
This paper combines an adaptive sinusoidal disturbance cancellation scheme with fault tolerant pointing algorithms for Stewart platforms. This results in a fault-tolerant pointing system capable of low-frequency tracking, mid-frequency rejection of large monotone disturbances, and high-frequency passive vibration isolation. Since often the frequency of the monotone sinusoidal disturbance cannot be precisely known, a phase-locked loop (PLL) algorithm is used to catch the frequency and a method for PLL design is developed. Experimental results on the University of Wyoming Stewart platform demonstrate that pointing errors caused by a monotone disturbance decrease 50-fold even in the presence of multiple actuator failures.
Year
DOI
Venue
2003
10.1109/TCST.2003.809248
IEEE Trans. Contr. Sys. Techn.
Keywords
Field
DocType
Frequency,Phase locked loops,Actuators,Fault tolerance,Payloads,Fault tolerant systems,Design methodology,Remote sensing,Vibration control,Satellites
Phase-locked loop,Control theory,Vibration isolation,Control engineering,Fault tolerance,Adaptive control,Stewart platform,Robot,Monotone polygon,Mathematics,Actuator
Journal
Volume
Issue
ISSN
11
2
1063-6536
Citations 
PageRank 
References 
5
0.61
6
Authors
2
Name
Order
Citations
PageRank
Haomin Lin1194.08
J. E. McInroy2837.14