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007			ta
008			191105t20192019my a|||fram|| 000 0 eng d
020			_aTHE0008190(Local) _qhardback
040			_aUMP _beng _cUMP _erda
090			_aFKP .N87 2019 r Thesis
100	0		_aNik Nurul Husna Muhmed Razali, _eauthor.
245	1	0	_aHybrid energy harvesting of piezoelectric and electromagnetic using vibration excitation of bimorph cantilever beam / _cNik Nurul Husna Muhmed Razali
264		1	_aKuantan, Pahang : _bUMP, _c2019
264		4	_c© 2019
300			_axiv, 100 pages : _billustrations (some color) ; _c30 cm. + _e1 CD-ROM
336			_atext _2rdacontent
336			_atext _2rdacontent
337			_aunmediated _2rdamedia
337			_acomputer _2rdamedia
338			_avolume _2rdacarrier
338			_acomputer disc _2rdacarrier
347			_atext file _bPDF _2rda
500			_aFaculty of Manufacturing Engineering
502			_aThesis (Master of Science) -- Universiti Malaysia Pahang – 2019
504			_aIncludes bibliographical references
520	3		_aHarvesting energy is the technique for accumulating energy from the surrounding environment and transforming it into electricity. Instead, the evolution of low power electronics, dependencies on battery as a power source that can decrease the lifespan and function capability. Thus, many researchers are finding that energy harvesting method can increase the power output depending on the geometry and material applied. The main objective is to develop energy harvesting of a piezoelectric and electromagnetic system based on vibration excitation. In this project, the implementation of harvesting energy from two technologies to form a hybrid energy harvester system was analyzed. These two technologies involve the piezoelectric harvesting energy and the electromagnetic harvesting energy. A finite element model was developed using the Ansys software with the harmonic analysis solver for initial beam and response surface optimization for optimum beam. Both power output generated by the electromagnetic and the piezoelectric is then combined to form one unit of energy. The power harvesting circuit was developed to store the power output instead to use the battery as power source and compared the AC and DC power output using a shaker. Thus, shaker was used as a modal testing to validate the analytical result. Further, it was found that the initial beam result of analytical was validated with experiment result with 8% error for voltage and the power harvesting of AC source was highest compare to DC source. Others, the optimal beam was validated that voltage has 3.32% error while power has 10.86% error between analytical and experiment results. Normalized Power Density (NPD) results of the optimal beam at 13.927 kgs/m3 are comparable with other literature also can be used in energy harvesting system for vibration application. Additionally, the efforts can be made towards decreasing the size of this harvester from 36.5 mm x 19.05 mm to 35 mm x 10.24 mm while still maintaining a interested resonant frequency and power output. Nevertheless, the optimum beam has minimized size instead of has higher normalized power density was generated of this project. The outcome of this work could be effectively used to improve the better lifespan and function capability performance for generating AC-DC sources.
610	2	0	_aFaculty of Manufacturing Engineering _xDissertations
650		0	_aUniversities and colleges _xDisertations
650		0	_aTheses
942			_2lcc _cTHESIS