Model identification and Smart structural vibration Control using ∞Hcontroller


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International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering, Engineering, Electrical & Electronic


eISSN: 1178-5608



VOLUME 3 , ISSUE 4 (December 2010) > List of articles

Model identification and Smart structural vibration Control using ∞Hcontroller

M. Sridevi * / P. Madhavasarma *

Keywords : Hcontroller, ARMAX, smart structure, LQG, weighting function, loop shaping, weighting function,

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 3, Issue 4, Pages 655-671, DOI:

License : (CC BY-NC-ND 4.0)

Published Online: 13-December-2017



A smart structure plays a vital role in aerospace applications and robotics and other applications. It presents many challenging control problems due to their non-linear dynamic behavior. The Objective of this work is to design a controller that minimizes the structural vibration using H∞ controller. Vibration as a measured parameter has been used to evaluate model of a non-linear process (piezoelectric actuator and sensor) at different modes .The model was generated using an ARMAX technique. By selecting appropriate weighting functions∞H controller were designed based on mixed sensitivity approach using singular loop shaping method. The performance of ∞H controller was compared with LQG controller based on vibration reduction. From the results it is observed that the H∞ controller is the best suited for smart structural process.

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