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HILS를 통한 무인항공기 카메라 지지 능동 마운트 시스템의 진동제어 성능 평가
오종석(Oh, Jong-Suk),최승복(Choi, Seung-Bok),조한준(Cho, Han-Jun),이철희(Lee, Chul-Hee),조명우(Cho, Myeong-Woo) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.8
In the present work, vibration control performance of piezoactuator-based active mount system for unmanned aero vehicle(UAV) equipment is evaluated via hardware in the loop simulation(HILS). At first, the vibration level of UAV is measured and from this vibration data, the proper piezostack actuator is selected. Then, the dynamic model of active mount system including four active mounts and UAV camera equipment is derived. In order to evaluate vibration control performance, the HILS system is constructed. The proposed mount is prepared as hardware part and the other mounts are considered in software part. A sliding mode controller is designed and implemented to the HILS system. Effective vibration control results are presented in both time and frequency domains.
무인항공기 임무장비용 압전 마운트 시스템의 진동 제어 성능 평가
오종석(Oh, Jong-Suk),손정우(Sohn, Jung-Woo),최승복(Choi, Seung-Bok) 한국소음진동공학회 2009 한국소음진동공학회 논문집 Vol.19 No.12
In the present work, vibration control performance of active camera mount system for unmanned aero vehicle(UAV) is evaluated. An active mount featuring inertia type of piezostack actuator is designed and manufactured. Then, vibration control performances are experimentally evaluated. A camera mount system with four active mounts is constructed and mechanical model is established. The governing equation for the camera mount system is obtained and control model is constructed in state space model. Sliding mode controller which has inherent robustness to external disturbance is designed and implemented to the system. Vibration control performances are evaluated at each mount and center of gravity point. Effective vibration performances are obtained and presented in time and frequency domains.
관성형 작동기를 이용한 능동 하이브리드 마운트 시스템의 진동제어 성능 평가
오종석(Oh, Jong-Seok),최승복(Choi, Seung-Bok),벤큐오(Nguyen, Vien Quoc),문석준(Moon, Seok-Jun) 한국소음진동공학회 2011 한국소음진동공학회 논문집 Vol.21 No.8
This work presents an experimental investigation on vibration control of the active hybrid mount system for naval ships. To reduce unwanted vibrations, this paper proposes an active mount which consists of rubber element, piezostack actuator and inertial mass. The rubber element supports a mass. The piezostack actuator generates a proper control force and supply it to the mount system. To avoid being broken piezostack actuator, an actuator of the proposed mount is devised as an inertial type, in which a piezostack actuator is positioned between inertial mass and rubber element. Vibration control performances of the active mount system are evaluated via experiment. To attenuate the unwanted vibrations transferred from upper mass, the feedforward control is designed. In order to implement a control experiment, the active mount system supported by four active mounts is constructed. For realization of the controller, one-chip board is manufactured and utilized. Subsequently, vibration control performances of the proposed active mount system are experimentally evaluated in frequency domains.