Kim, In-Ho Jung, Hyung-Jo Lee, Bo Mi Jang, Seon-Jun 2024-01-20T17:02:23Z 2024-01-20T17:02:23Z 2021-09-05 2011-05-23 0003-6951 https://pubs.kist.re.kr/handle/201004/130338 In this letter, we introduce the concept and describe the realization of a two degree-of-freedom piezoelectric energy-harvesting device. The proposed system consists of a proof mass (i.e., a rigid body) and two cantilever beams; it can utilize both translational and rotational degrees of freedom. Therefore, it exhibits double power peaks and an increased frequency bandwidth, and it can generate power more efficiently than conventional vibration-based single degree-of-freedom devices. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3595278] English AMER INST PHYSICS Broadband energy-harvesting using a two degree-of-freedom vibrating body Article 10.1063/1.3595278 1 APPLIED PHYSICS LETTERS, v.98, no.21 APPLIED PHYSICS LETTERS 98 21 scie scopus 000291041600077 2-s2.0-79959434076 Physics, Applied Physics Article