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넓은 주파수 범위에서의 실린더형 유체 댐퍼에 대한 실험적 동특성 규명 연구
문석준(Moon, S.J.),김흥섭(Kim, H.S.),정태영(Chung, T.Y.),이동환(Lee, D.H.),황재영(Hwang, J.Y.) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.6
System identification for cylindrical oil dampers is carried out based on a series of dynamic experimental tests and theoretical approach for the analysis of the experimental data. Experimental tests are conducted using a specific hydraulic actuator in the wide frequency range from 10 Hz to 90 Hz. From this study, it is confirmed that control force of the damper is composed of inertia, damping and restoring components. In general, both restoring and damping components are significant and comparable. However, the portion of the inertia components becomes more significant than to be negligible in the high frequency range.
함정 탑재장비용 능동 하이브리드 마운트 개발에 대한 연구
문석준(Moon, S.J.),최상민(Choi, S.M.),정종안(Jeong, J.A.),최승복(Choi, S.B.),정우진(Jung, W.J.),구자용(Koo, J.Y.) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.7
A hybrid mount for shipboard machinery installed on naval ships was developed. The mount is combined with a rubber mount and a piezostack actuator. The rubber mount is one of the most popular and effective passive mounts to have been applied to various vibration systems to date. The piezostack actuator is featured by a fast response time, small displacement and low power consumption. Through a series of experimental tests conducted in accordance with MIL-M-17185A(SHIPS), MIL-M-17508F(SH), and MIL-S-901D which are US military specifications related to the performance requirements of the mount, it has been confirmed that the hybrid mount shows more effective performance for use in naval ships.
공기스프링과 압전작동기를 결합한 복합형 미진동 방진마운트 시스템 개발
문석준(Moon, S.J.),정형조(Jung, H.J.),신윤호(Shin, Y.H.),장동두(Jang, D.D.),정종안(Jeong, J.A.),문영종(Moon, Y.J.) 한국소음진동공학회 2011 한국소음진동공학회 논문집 Vol.21 No.1
A new hybrid mount system is proposed for microvibration control in a high-tech factory. The mount consists of an airspring as a passive device and a piezostack actuator as an active device. The two devices are connected in series. Some numerical simulations and experimental tests are carried out to evaluate isolation performance of the mount system comprising of four proposed hybrid mounts. As a control logic, the specific algorithm is adopted for considering multiple target frequencies of excitation based on a Filtered-X LMS algorithm. The results are compared with isolation performance of the passive airspring mount system. It is confirmed that the proposed hybrid mount system has great performance on microvibration.