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Active modal damping control of a smart truss structure using a self-organizing fuzzy controller

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Abstract

This paper presents design, implementation and experimental results of active vibration control of a truss structure using a pair of piezoelectric ceramic stack actuators. To reduce the vibrations caused by an impulse force, two active strut members are installed along a vertical of the base bay of the truss. The active strut element consists of a piezoelectric ceramic actuator stack, a force transducer and mechanical interfaces. A self-organizing fuzzy controller (SOFC) is designed to suppress vibration of the truss. The SOFC, which uses the input and output history in its fuzzy rules, is designed to maximize modal damping of a constructed truss structure. Experimental results illustrate that the active piezoceramic strut actuators and the SOFC can effectively reduce vibration of the truss.

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Abbreviations

\(A, \;B\) :

Antecedent linguistic values

\(C\) :

Consequent linguistic value

\(g\) :

Nonlinear function of the input–output history

\(h\) :

Nonlinear function of the output–input history

\(i, j\) :

Rule index

\(k\) :

Sampled time

\(p, q\) :

Lower and upper limits of the net control range

\(s\) :

Laplace variable

\(u\) :

Control signal

\(V\) :

Control voltage

\(w\) :

Membership degree

\(y\) :

Force transducer signal

\(\varepsilon\) :

Constant to avoid voltage saturation

\(\mu\) :

Membership function

\(\alpha\) :

Target ratio

\(\omega\) :

Resonance frequency

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Acknowledgments

The first author would like to thank the FAPESP (Nº 2008/05129-3) for the financial support of the reported research. The authors acknowledge the financial support of CNPq Brazilian Research Agency and FAPEMIG through INCT-EIE.

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Authors and Affiliations

  1. Departamento de Engenharia Mecânica, UNESP-Faculdade de Engenharia de Ilha Solteira, Ilha Solteira, São Paulo, 15385-000, Brazil

    Gustavo Luiz C. M. de Abreu, Gilberto Pechoto de Melo, Vicente Lopes Jr. & Michael John Brennan

Authors
  1. Gustavo Luiz C. M. de Abreu
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  2. Gilberto Pechoto de Melo
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  3. Vicente Lopes Jr.
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  4. Michael John Brennan
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Corresponding author

Correspondence to Gustavo Luiz C. M. de Abreu.

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Technical Editor: Marcelo Savi.

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de Abreu, G.L.C.M., de Melo, G.P., Lopes, V. et al. Active modal damping control of a smart truss structure using a self-organizing fuzzy controller. J Braz. Soc. Mech. Sci. Eng. 37, 441–450 (2015). https://doi.org/10.1007/s40430-014-0174-7

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  • DOI: https://doi.org/10.1007/s40430-014-0174-7

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