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Reseach Article

Quantitative Feedback Theory based Control of Light-Weight Flexible Manipulators

Published on September 2015 by Indu K Namboodiri, Jeevamma Jacob
International Conference on Emerging Trends in Technology and Applied Sciences
Foundation of Computer Science USA
ICETTAS2015 - Number 2
September 2015
Authors: Indu K Namboodiri, Jeevamma Jacob
29bfb5a1-98c7-4f06-8bcd-013854bdeba1

Indu K Namboodiri, Jeevamma Jacob . Quantitative Feedback Theory based Control of Light-Weight Flexible Manipulators. International Conference on Emerging Trends in Technology and Applied Sciences. ICETTAS2015, 2 (September 2015), 5-9.

@article{
author = { Indu K Namboodiri, Jeevamma Jacob },
title = { Quantitative Feedback Theory based Control of Light-Weight Flexible Manipulators },
journal = { International Conference on Emerging Trends in Technology and Applied Sciences },
issue_date = { September 2015 },
volume = { ICETTAS2015 },
number = { 2 },
month = { September },
year = { 2015 },
issn = 0975-8887,
pages = { 5-9 },
numpages = 5,
url = { /proceedings/icettas2015/number2/22379-2573/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 International Conference on Emerging Trends in Technology and Applied Sciences
%A Indu K Namboodiri
%A Jeevamma Jacob
%T Quantitative Feedback Theory based Control of Light-Weight Flexible Manipulators
%J International Conference on Emerging Trends in Technology and Applied Sciences
%@ 0975-8887
%V ICETTAS2015
%N 2
%P 5-9
%D 2015
%I International Journal of Computer Applications
Abstract

The control of lightweight flexible manipulator that are widely used in space applications due to their fast response and high speed of operation, is more complex due to their distributed structural flexibility. The structural flexibility associated with light-weight manipulators often results in mechanical vibrations and consequently leads to long settling times and position inaccuracy. This paper proposes the robust control of a single link flexible manipulator using the concept of Quantitative Feedback Theory (QFT). As a first step to achieve the control target, transfer function from input torque to output hub angle is established. The QFT is then adopted to formulate robust controller associated with the actuator. The QFT approach is based on classical ideas of frequency domain shaping of the open-loop transfer function. Simulation results envisage that the proposed QFT based robust controller tracks a desired tip trajectory while suppressing the tip deflection even in the presence of parametric uncertainties.

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Index Terms

Computer Science
Information Sciences

Keywords

Structural Flexibility Qft Flexible Link Manipulator Pre-filter.