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기전 연성 효과를 고려한 전기모터의 진동해석Vibration Analysis of an Electric Motor with Mechanical and Electromagnetic Interaction
- Other Titles
- Vibration Analysis of an Electric Motor with Mechanical and Electromagnetic Interaction
- Issue Date
- Nov-2009
- Publisher
- 대한기계학회
- Keywords
- Brushless DC Motor(브러쉬리스 직류 전동기); Inductance(인덕턴스); Flux linkage(쇄교자속); Air-gap(공극); Electromechanical equation(기전연성방정식); Lagrange’s equation(라그랑지 방정식)
- Citation
- 대한기계학회 추계학술대회 논문집 , pp 924 - 930
- Pages
- 7
- Indexed
- OTHER
- Journal Title
- 대한기계학회 추계학술대회 논문집
- Start Page
- 924
- End Page
- 930
- Abstract
- In this study, the vibration of an electric motor is analyzed when mechanical and electromagnetic interaction is considered. After obtaining the kinetic, potential and magnetic energies for the motor, the equations of motion are derived by using Lagrange’s equation. These equations are nonlinear equations in which the displacement of motor center and the current of coil are coupled to each other. By applying the Newmark time integration method to the equations, the dynamic responses for the displacement and current are computed. It is found that the mechanical responses are influenced by the electromagnetic properties. In particular, it is shown that the variation of air-gap due to vibration induces the inductance of the motor coil.
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Related Researcher
- Chung, Jintai
- ERICA 공학대학 (DEPARTMENT OF MECHANICAL ENGINEERING)