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Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 3, Issue 4, Pages 655-671, DOI: https://doi.org/10.21307/ijssis-2017-414
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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