title: Note: Vibration energy harvesting based on a round acoustic fence.
abstract: An energy harvester based on a round acoustic fence (RAF) has been proposed and studied. The RAF is composed of cylindrical stubs stuck in a circular array on a thin metal plate, which can confine the acoustic energy efficiently. By removing one stub and thus opening a small gap in the RAF, acoustic leakage with larger intensity can be produced at the gap opening. With the vibration source surrounded by the RAF, the energy harvesting at the gap opening has a wide bandwidth and is insensitive to the position of the vibration source. The results may have potential applications in harvesting the energy of various vibration sources in solid structure.
authors.affiliation: State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
authors.forename: Xiao-bin
authors.initials: XB
authors.lastname: Cui
authors.affiliation: Department of Applied Physics, Nanjing Tech University, Nanjing 210009, China.
authors.forename: Cheng-ping
authors.initials: CP
authors.lastname: Huang
authors.affiliation: State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
authors.forename: Jun-hui
authors.initials: JH
authors.lastname: Hu