S 모양의 보 구조물을 이용한 다모드 압전 에너지 하베스터S Shaped Multimodal Piezoelectric Energy Harvester
- Other Titles
- S Shaped Multimodal Piezoelectric Energy Harvester
- Authors
- 유홍희; 정신우
- Issue Date
- Apr-2016
- Publisher
- 한국소음진동공학회
- Keywords
- Piezoelectric energy harvester(압전 에너지 하베스터); Broadband(광대역); Multimodal(다모드의); Distributed parameter model(분포 매개변수 모델)
- Citation
- 한국소음진동공학회 2016년도 춘계 학술대회 논문집, pp.80 - 82
- Indexed
- OTHER
- Journal Title
- 한국소음진동공학회 2016년도 춘계 학술대회 논문집
- Start Page
- 80
- End Page
- 82
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/23167
- ISSN
- 1598-2548
- Abstract
- Vibration based piezoelectric energy harvester have attracted a lot of interest due to its simple implementations and high energy density. However, if natural frequencies of the system do not correspond to an input vibration frequency, generated power decreases significantly. In this paper, a new broadband piezoelectric energy harvester that consist of three beams and seems like the alphabet S is introduced. The equations of motion are built. A modal analysis is conducted and the results show that the lowest three natural frequencies can be spaced so closely by changing the length, thickness, and tip mass of each beam.
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