지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2002.5
- 수록면
- 753 - 757 (5page)
이용수
초록· 키워드
오류제보하기
Magnetic contactor is an electromagnetically operated switch that serves to open and close high-energy electric
circuits. In the opening of the contactor, the moving parts of the contactor must be stopped at the end of the opening
stroke. It is important that much of the kinetic energy be absorbed in the impact to avoid a rebound that would bring
the contacts close together again. Because the closing and opening action frequently occurs, the impact between the
moving part and the stopper reduces the mechanical lifetime of the contactor. Therefore, the rebound of the contactor
is the most important characteristics that have much influence on electrical performance in the opening responses. In
order to reduce the rebound, the impact force between moving contactor and stopper is predicted because the impact is
a dominant source of the rebound. However, it is so difficult to predict the impact force because of Its non-linearity. In
this paper, we suggest the method of the impact force model for predicting the impact phenomenon. The impact force
is modeled by the nonlinear spring-damping element with Hertz law and hysteresis damping function. In this way
impact force model consists of three parameters, stiffness coefficient, damping coefficient, and power on the
indentation. These three parameters are determined through drop type impact test between moving contactor and
stopper. The derived impact model is applied to predict the impact force of magnetic contactor in opening motion.
circuits. In the opening of the contactor, the moving parts of the contactor must be stopped at the end of the opening
stroke. It is important that much of the kinetic energy be absorbed in the impact to avoid a rebound that would bring
the contacts close together again. Because the closing and opening action frequently occurs, the impact between the
moving part and the stopper reduces the mechanical lifetime of the contactor. Therefore, the rebound of the contactor
is the most important characteristics that have much influence on electrical performance in the opening responses. In
order to reduce the rebound, the impact force between moving contactor and stopper is predicted because the impact is
a dominant source of the rebound. However, it is so difficult to predict the impact force because of Its non-linearity. In
this paper, we suggest the method of the impact force model for predicting the impact phenomenon. The impact force
is modeled by the nonlinear spring-damping element with Hertz law and hysteresis damping function. In this way
impact force model consists of three parameters, stiffness coefficient, damping coefficient, and power on the
indentation. These three parameters are determined through drop type impact test between moving contactor and
stopper. The derived impact model is applied to predict the impact force of magnetic contactor in opening motion.
목차
Abstract
1. 서론
2. 충돌 이론
3. 충돌 실험
4. 충격력 해석
5. 결론
참고문헌
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