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논문 기본 정보

자료유형
학술저널
저자정보
이석규 (LIG Nex1) 이병호 (LIG Nex1) 이증 (LIG Nex1) 강동석 (LIG Nex1) 최관호 (Agency for Defense Development)
저널정보
한국소음진동공학회 한국소음진동공학회논문집 한국소음진동공학회논문집 제25권 제2호
발행연도
2015.2
수록면
108 - 115 (8page)

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이 논문의 연구 히스토리 (3)

초록· 키워드

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Electro-mechanical actuator installed on aircraft consists of a decelerator which magnifies the torque in order to rotate an axis connected with aircraft control surface, a control section which controls the motor assembly through receiving orders from cockpit and a motor assembly which rotates the decelerator. Electro-mechanical actuator controls aircraft altitude, position, landing, takeoff, etc. It is an important part of a aircraft. Aircraft maneuvering causes vibrations to electro-mechanical actuator. Vibrations may result in structural fatigue. For that reason, it is necessary to analyze the system structural safety. In order to analyze the system structural safety. It is needed reasonable finite element model and structural response stress closed to real value. In this paper, analytic model is derived by using the simplified finite element model, and damping ratio which is closely related to response stress is derived by using modal test. So, we developed analytic model in less than 10 % error rate, compared with modal test. Vibration response stress close to real value was estimated from analytic model modified with modal experimental damping ratio. Estimation method for damping ratio with empirical formula was suggested partly. Finally, It was proved that electro-mechanical actuator had reasonable structure margin of safety at environmental random 3σstress during life cycle.

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ABSTRACT
1. 서론
2. FEM 해석
3. 결론
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UCI(KEPA) : I410-ECN-0101-2016-539-001074023