Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)
- Volume 24 Issue 11
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- Pages.865-869
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- 2011
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- 1226-7945(pISSN)
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- 2288-3258(eISSN)
DOI QR Code
Generating Characteristics of a Cantilever Type Piezoelectric Generator for Changeable Frequency
주파수 가변용 외팔보형 압전발전기의 발전특성
-
Jeong, Seong-Su
(Department of Electrical Engineering, Changwon National University)
;
- Park, Choong-Hyo (Department of Electrical Engineering, Changwon National University) ;
- Kang, Shin-Chul (Department of Electricity, Gyeongnam Provincial Namhae College) ;
- Kim, Jong-Wook (Department of Electrical Engineering, Changwon National University) ;
- Lim, Jung-Hoon (Department of Electrical Engineering, Changwon National University) ;
-
Kim, Myong-Ho
(Department of Electrical Engineering, Changwon National University)
;
-
Park, Tae-Gone
(Department of Electrical Engineering, Changwon National University)
-
정성수
(창원대학교 전기공학과)
;
- 박충효 (창원대학교 전기공학과) ;
- 강신출 (경남도립남해대학 전기과) ;
- 김종욱 (창원대학교 전기공학과) ;
- 임정훈 (창원대학교 전기공학과) ;
-
김명호
(창원대학교 전기공학과)
;
-
박태곤
(창원대학교 전기공학과)
- Received : 2011.09.30
- Accepted : 2011.10.21
- Published : 2011.11.01
Abstract
A cantilever-type piezoelectric generator has advantages of simple structure, ease of fabrication and large displacement by transverse vibration of a beam. It is easy to control the natural frequency, and also possible to increase the output power by changing the length, width, and thickness of the generator. In particular, the length increases, the natural frequency sharply decreases, and vice versa. Hence, the natural frequency can widely be controlled by using change in the length of elastic body. In this paper, the generator was designed and fabricated to change natural frequency using the slides of the case. In addition, the generating characteristics were confirmed through finite element analyses and vibration experiment. As a result, the maximum output characteristics could be generated due to resonance phenomenon although any frequency of external force was applied.
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