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This paper presents a slightly different concept of energy harvesting method as compared to the conventional energy harvesters. The new energy harvester of interest is known as Hybrid Energy Harvester (HEH). It comprises of the Piezoelectric and Magnetostrictive/Electromagnetic transducers integrated into a system. Theoretically, the hybrid energy harvester device developed is targeted to expand the...
This paper presents the design, modeling and analysis of a new type of electrode structure for the electrets-based energy harvester. A trapezoidal shape of electrodes structure interleaving with one another placed side by side while the electrets layer is placed on the opposite side of the electrodes, are designed, modeled and analyzed to assess its performance. The results of this model are compared...
Using piezoelectric elements to harvest energy from ambient vibration and human motion has been of great interest recently. This study quantifies the amount of energy generated by piezoelectric device from vibration environment and human motion. Nickel metal hydride rechargeable battery has been used to store the energy generated. Throughout the experiment, the discharged 40m Ah rechargeable battery...
This paper describes the development of a hand-arm model rig to simulate human tremor behaviour. The experimental rig is designed as an apparatus to induce vibration along a hand-arm model. An Intra Vernacular (IV) Training arm is used as the hand-arm model. Displacement and acceleration behaviour at three selected points along the hand-arm model were recorded by mean of piezoelectric accelerometer...
Transducer attached to a structure during vibration testing is a direct addition of mass especially when the structure itself is relatively light. This paper present result from a study on the effect of transducer mass on thin plate vibration. A rectangular thin plate of mild steel was used as the test structure. The influence of the transducer mass on the natural frequencies and the mode shapes of...
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