Active vibration control of carbon nanotube reinforced composite beams. (December 2017)

• Record Type: Journal Article
• Authors: Mirghaffari, Ali; Rahmani, Behrooz
• Is Part Of: Transactions of the Institute of Measurement and Control. Volume 39:Number 12(2017)
• Page Start: 1851
• Page End: 1863
• Publication Date: 2017-12
• Subjects: Vibration control -- carbon nanotube reinforced composite beam -- optimal control -- thermal environment; Automatic control -- Periodicals; Measuring instruments -- Periodicals; Commande automatique -- Périodiques; Mesure -- Instruments -- Périodiques; 681.2
• DOI: 10.1177/0142331216649431
• Languages: English
• ISSNs: 0142-3312

Abstract

In this paper, active vibration control of carbon nanotube reinforced composite beams subjected to a temperature rise is studied. For this purpose, piezoelectric patches are used as sensors to measure the displacement of the beam and as actuators to implement control forces. The governing equation of motion of this beam is derived from the Euler–Bernoulli theory and Hamilton's principle. Galerkin's method is utilized to obtain the temporal ordinary differential equations. An optimal observer-based output feedback controller is designed by the linear quadratic regulator ( LQR ) methodology to ensure closed-loop stability. Simulation studies demonstrate the effectiveness of the proposed method.