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초정밀 위치 제어를 이한 이중 서보 시스템의 보상기 설계
최현석(Hyeun Seok Choi),송치우(Chi Woo Song),한창수(Chang Soo Han),최태훈(Tae Hoon Choi),이낙규(Nak Kyu Lee),나경환(Kyung Whan Na) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
The high precision positioning mechanism is used in various industrial fields. It is used in semiconductor<br/> manufacturing line, test instrument, Bioengineering, and MEMS and so on. This paper presents a positioning<br/> mechanism with dual servo system. Dual servo system consists of a coarse stage and a fine motion stage. The<br/> course stage is driven by VCM and the actuator of fine stage is the PZT. The purposes of dual servo system<br/> are stability, higher bandwidth, and robustness. Lead compensator is applied to this control system, and is<br/> designed by PQ method. Designed compensator can improve property of positioning mechanism.
소재의 정밀 Loading/unloading 기술 개발
최현석(Hyeun-Seok Choi),탁태열(Tae-Yul Tak),한창수(Chang-Soo Han),이낙규(Nak-Kyu Lee),최태훈(Tae-Hoon Choi),이혜진(Hye-Jin Lee) 한국생산제조학회 2005 한국생산제조시스템학회 학술발표대회 논문집 Vol.2005 No.5
In microfactory, loading/unloading mechanism supply the row material to processinng machines for manufacturing process such as pressing, cutting, plastic deformation. This mechanism for microfactory is designed as modularity robot. Microfactory system have to be flexible structure for variety product item. For system flexibility, applied mechanisms are developed as moduality. Robot moduality needs the specific charecteristics which are different from one of macro, typical robot system. In this paper, we discussed about the modularity robot. and proposed the loading/unloading mechanism for working in microfactory system.
최현석(Hyeun-Seok Choi),이동찬(Dong-Chan Lee),한창수(Chang-Soo Han),김승수(Seung-Soo Kim),최태훈(Tae-Hoon Choi),이낙규(Nak-Kyu Lee) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Micro flexure hinge mechanism is the flexible structure that makes the desired motion due to elastic deformation with the jointed rigid body. For the improved reliability, performance and design, this mechanism must have the flexible structure with the reasonable topology and shape of material continuum. This paper illustrates the systematic design methodology of micro flexure hinge mechanisms through the application of micro gripper simulation.
Micro Particle Counting 을 위한 Micro Fluidic Device 개발
이준(Jun Lee),최현석(Hyeun-seok Choi),윤덕원(Duk-won yun),탁태열(Tae-yul Tak),한창수(Chang-soo Han),이낙규(Nak-kyu Lee),최태훈(Tae-hoon Choi) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Recently many researches related with biotechnology are processed and it is the situation that research about micro fluidic devices is active. Micro fluidic devices has been one of the most widely used devices for the analysis in biotechnology because they have many advantages, flexibility, transparency, thermal and electrical stability, nontoxic, etc. In this study, micro fluidic device with PDMS is developed for particle counter which separates a small quantity of particles. The principle of micro particle counter is electrical-impedance method, and it was also applied hydrodynamic flow focusing. It is more efficient method to analyzing particles furthermore it can be applied to cell counting for biotechnology.
다 자유도 매니퓰레이터를 이용한 커튼월 시공 자동화에 관한 연구
유승남(Seung-nam You),이승열(Soung-yel Lee),최현석(Hyeun-Seok Choi),이계영(kye-young Lee),이상헌(Sang-heon Lee),한창수(Chang-soo Han) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4
Recently, the trend in architectural forms has been toward taller and larger building. The building materials, therefore, are getting larger and heavier as wall. Most of the construction projects are, however, dependent on outdated equipment and human resources. Construction processes up to now face a number of problems, including dangerous work, high construction cost and heterogeneous construction quality. In various construction sites, automation in construction has been introduced to address these problems. This paper proposes a human-machine cooperative system in the construction site; the system utilizes construction of a curtain wall in tall buildings. The use of automation system at construction sites can reduce the need of human involvement. Construction time and cost can be reduced as well. The most important aspect of the use of automation system at construction sites is prevention of accidents.
3자유도 병렬식 마이크로 매니퓰레이터의 기구학적 해석 및 설계
탁태열(Tae-Yul Tak),이동찬(Dong-Chan Lee),한창수(Chang-Soo Han),윤덕원(Deok-won Yun),서승환(Seung-whan Suh),김진호(Jin-Ho Kim),최현석(Hyeun-Seok Choi),이낙규(Nak-Kyu Lee),최태훈(Tae-Hoon Choi),이혜진(Hye-Jin Lee) 한국생산제조학회 2006 한국생산제조시스템학회 학술발표대회 논문집 Vol.2006 No.5
This paper presents the development methodology of the 3 DOF Parallel Micromanipulator with the PZT-driven flexure hinge amplifier. For the fundamental kinematic configuration of manipulator, inverse and forward kinematics are simulated by Matlab programming. Through the kinematic simulation, the operation range of the platform and the workspace of end-effector are investigated. Under a given driving condition, the PZT-driven flexure hinge amplifier is designed by FEM and optimization tools.
초탄성 링크를 이용한 초정밀 3자유도 병렬형 매니퓰레이터 개발
윤덕원(Deok-won Yun),탁태열(Tae-Yul Tak),김진호(Jin-Ho Kim),서승환(Seung-whan Suh),이동찬(Dong-Chan Lee),한창수(Chang-Soo Han),최현석(Hyeun-Seok Choi),강은구(Eun-goo Kang),홍원표(Won-pyo Hong),최헌종(Hun-jong Choi) 한국생산제조학회 2006 한국생산제조시스템학회 학술발표대회 논문집 Vol.2006 No.5
According to the growth of nano science and technology, ultra high precision stage and manipulator is recently required at a variety of equipment (SEM, FIB, AFM, STM etc.). In this study, 3-DOF parallel manipulator using the merits of parallel robot is developed, and inverse kinematics is studied for the parallel type manipulator. This manipulator using the pantograph type PZT is operated, and joints and links using the super-elastic material arecomposed. FEM analysis is performed in order to considerate reasonability to use super-elastic wire.
초탄성 링크를 이용한 초정밀 3자유도 병렬형 매니퓰레이터 개발
윤덕원(Deok-won Yun),탁태열(Tae-Yul Tak),김진호(Jin-Ho Kim),서승환(Seung-whan Suh),이동찬(Dong-Chan Lee),한창수(Chang-Soo Han),최현석(Hyeun-Seok Choi),강은구(Eun-goo Kang),홍원표(Won-pyo Hong),최헌종(Hun-jong Choi) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
According to the growth of nano science and technology, ultra high precision stage and manipulator is recently required at a variety of equipment (SEM, FIB, AFM, STM etc.). In this study, 3-DOF parallel manipulator using the merits of parallel robot is developed, and inverse kinematics is studied for the parallel type manipulator. This manipulator using the pantograph type PZT is operated, and joints and links using the super-elastic material arecomposed. FEM analysis is performed in order to considerate reasonability to use super-elastic wire.