KOREASCHOLAR

In order to overcome the limitations of linear vibration energy harvesters and those using mechanical plucking, magnetic plucking vibration energy harvesters (MVEs) have garnered significant interest. This paper presents parametric studies aimed at proposing design guidelines for MVEs and compares two magnetic force models that describe interactions between two permanent magnets. A mathematical model describing the energy harvester is employed, followed by the introduction of two magnetic force models: an analytic model and an inverse square model. Subsequently, numerical simulations are conducted to investigate dynamic characteristics of MVEs, analyzing results in terms of tip displacement, voltage output, and harvested energy. Parametric studies vary the distance between magnets, the speed of the external magnet, and the beam shape. Results indicate that reducing the distance between magnets enhances energy harvesting effectiveness. An optimal velocity for the external magnet is observed, and studies on beam shape suggest greater energy harvesting when the shape favors deflection.

Abstract
1. 서 론
2. 수학적 모 델
    2.1 진동에너지 수확기의 수학적 모 델
    2.2 두 영구자석 사이 자기력의 수학적 모 델
3. 동적 시뮬레이션
    3.1 자기력 프로파일
    3.2 자기적 튕김(Magnetic plucking) 시뮬레이션
4. 에너지 수확량에 대한 매 개변수 분석
    4.1절 두 자석 사이 거리 에 의한 영향
    4.2 보의 길이에 의한 영향
    4.3 보의 두께에 의한 영향
    4.4 보의 폭에 의한 영향
5. 결 론
References

• 조형권(Department of Mechanical Design Engineering, Jeonbuk National University) | Hyeong Kwon Cho
• 한창우(Department of Mechanical Design Engineering, Jeonbuk National University) | Changwoo Han
• 김필기(Dept. of Mechanical Design Engineering, Jeonbuk National University) | Pilkee Kim Corresponding author
• 강희용(Department of Mechanical Design Engineering, Jeonbuk National University) | Hee Yong Kang Corresponding author