Design of temperature robust active vibration controller

Abstract

Thesis presents a novel scheme for designing a temperature robust active vibration controller using Multi Walled Carbon Nano Tube (MWCNT)/epoxy strain sensor and PZT-5H actuator. The whole scheme is divided into four parts: (i) mathematical modeling of cantilevered beam, (ii) active vibration control simulations at ambient and elevated temperatures, newline(iii) fabrication and characterisation of MWCNT/epoxy composite strain sensors and (iv) verifying it experimentally. Sensor signal peak shows reduction by 28.57% for controlled signal at first natural frequency of beam (i.e. 25 Hz). It is concluded that temperature robust control law maintain active vibration control of cantilevered beam upto 60°C. newline newline