Tunable Vibration Energy Harvester for Condition Monitoring of Maritime Gearboxes

14th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Hoffmann, D.^1 ; Willmann, A.^1 ; Folkmer, B.^1 ; Manoli, Y.^1,2

HSG-IMIT-Institute of Micromachining and Information Technology, Wilhelm- Schickard-Str.10', Villingen-Schwenningen

78052, Germany^1

Fritz Huettinger Department of Microelectronics, University of Freiburg, Germany^2

关键词: Active transducers;    Frequency band width;    Rotation angles;    Tunable vibrations;    Tuning ranges;    Vibration generators;    Vibration profiles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/557/1/012099/pdf
DOI  :  10.1088/1742-6596/557/1/012099

来源: IOP

【 摘 要 】

This paper reports on a new tuning concept, which enables the operation of a vibration generator for energy autonomous condition monitoring of maritime gearboxes. The tuning concept incorporates a circular tuning magnet, which interacts with a coupling magnet attached to the active transducer element. The tuning range can be tailored to the application by careful design of the gap between tuning magnet and coupling magnet. A total rotation angle of only 180° is required for the tuning magnet in order to obtain the full frequency bandwidth. The tuning concept is successfully demonstrated by charging a 0.6 F capacitor on the basis of physical vibration profiles taken from a gearbox.