Helicopters are susceptible to high vibratory loads, excessive noise levels and poor flight stability compared to fixed-wing aircraft. The multidisciplinary nature or helicopter structures offers many opportunities for the innovative smart structure technology to improve helicopter perfonnance. This paper provides a review of smart structures research at the National Research Council Canada for...

Natural vibration analysis of plates represents an important issue in engineering applications. In this paper, a new and simplify method for vibration analysis of circular and rectangular plates is presented. The design of an effective robust controller, which consistently attenuates transverse vibration of the plate caused by an external disturbance force, is given. The dynamics of the plate i...

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Several crucial phases of the overall approach to development and design of smart structures are outlined in this paper. They are focused on control of lightweight mechanical structures with respect to active vibration and noise attenuation using piezoelectric actuators and sensors. The research experience and growing interest in development of smart structures have motivated introduction of co...

Electric wheelchair is one of the equipment to be used by the incapacitated and disable people. Constant exposure to vibration affects human comfort and health. Reducing the vibrations transmitted to the human body is important in the electric wheelchair design and becomes a healthcare industry demand. This paper deals with the study on vibration control of the electric wheelchair suspension sy...