270-degree arc-shaped piezoelectric energy converter in uniflow fluid environment

摘要

Energy harvesting in uniflow fluid environment aims at ambient energy that can be used in water environment for monitor equipment.In this paper,we focus on coupling both bending vibration and torsional vibration to gain better power generation.A novel structure of energy converter(arc-shaped)was designed and manufactured.Meanwhile the influence of vibrator with and without a pelvic fin was tested.Mathematical analyse due to vibration phenomenon and experimental result are reported.The 270-degree arc-shaped ring size piezoelectric ceramic is verified capable of producing an effective voltage over 10 V with the power of 0.5 mW.