Investigation on macro fiber composite based smart structure using finite element analysis

Abstract

NASA Center for Space Research invented a Macro-Fiber newlineComposite (MFC) device as actuator and sensor for energy harvesting and newlinevibration control. The MFC is primarily made up of piezo ceramic fiber rods newlinethat have been dipped in epoxy resin and are sandwiched between Acrylic and newlineKapton layers. A piezoelectric patch for active vibration control is a difficult newlinetechnology to use to alleviate vibration issues. The major studies of MFC are newlinefocused made on experimental quantification of piezoelectric, dielectric and newlineactuation properties. The majority of research has focused on cantilever beams newlineand plates. newlineThe first structure of a cantilever beam is modelled, analyzed, and newlinestructural vibration is used as sensing and actuation in this investigation. The newlineTheoretical model of the beam and the FE model are derived to select the newlinesuitable based on dimensions, shape and substrate materials for energy newlineharvester and actuation control simulations of the cantilever beam with MFC. newlineThe controller designed in the simulation stage is examined and analyzed newlinethrough experimental activity. The structure, on the other hand, is used as a newlinetest to assess the electric field produced by the device as a result of natural newlinefrequencies. newlineNext, a geometrical variation of cantilever beam with MFC patch newlineare evaluated the performance of MFCs for actuation and control using closed newlineloop circuit. In order to convert the voltage of direct current, alternating newlinecurrent must be processed the input sources to the MFC using rectifier circuit. newlineBoth types of currents are maximized in this study by altering the capacitance newlineand voltages values. newline