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This paper presents an analytical and experimental study of a compact configuration to harvest energy from a rotating gear using piezoelectric microelectromechanical system harvesters. The reported configuration realizes a contact-type frequency up-conversion mechanism in order to generate useful electrical energy. The up-conversion mechanism was achieved using an atomic force microscope (AFM)-like...
A method is proposed for the resonant suppression of a flexible system based on vibration signal feedback. In addition to a torque, speed and position feedback control structure, this method filters some specific vibration frequencies of the output and then feedback them to the input of the system. Thus it is featured by a concise control structure and simple parameter design procedures. The paper...
Energy harvesting has the potential to save billions of dollars and create ground breaking technologies for sustainable ocean monitoring systems. Replacement of batteries from the sensors deployed on sea floor is expensive and tedious process. The cost of maintenance for battery operated equipments in the deep waters may be prohibitive. Thus, it is highly desirable to develop a system that harnesses...
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