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초미세 고기능 동축가공 연삭 시스템의 구조 최적화 및 특성 평가
안건준(K. J. Ahn),이호준(H. J. Lee),김기주(G. J. Kim),김기환(G. H. Kim) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
Fiber optic connector, ferrule, is a device to connect and align fiber optics cable on fiber-optic communication system. In general ZrO₂ ceramic ferrule is manufactured by grinding process because the demands precision is very high. For the precision grinding machining, it is very important that structure of co-axial ferrule grinding system is optimized. In this paper, Structural analysis was performed to analyze bed and frame structure of co-axial grinding machine. Deformation and modal analysis for natural frequency was performed using ANSYS design space program to analyze structural characteristics. New improved model of bed and frame structure was proposed based on initial basic model. Therefore, we estimated the structural characteristics precision co-axial grinding machining system.
안건준(K. J. Ahn),이호준(H. J. Lee) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4
Today the demand of the optical communication components has been increased. Zirconia Ferrule has become the one of the most important clements because it determines transmission efficiency and quality of information in the optical communication system. Grinding is the major process in the ferrule manufacturing process which require high processing precision. In this research, specially designed spindle. chucking system, loading & unloading system and cooling system. as a supporting experimental equipment for development of an Intelligent Coaxial Grinding System (lCGS) for Zirconia Ferrule processing, is developed. We arc also analized the adaptability of ICGS in practical use. through the way of evaluation for the performance of the each systems above.
편영식,이건범,박정현,요꼬이 요시유끼,여진욱,안건준,곽철훈 한국공작기계학회 2003 한국생산제조학회지 Vol.12 No.3
Any one of the high precision spindle systems and guide way systems, the high stiffness of structure, the error compensation during assembly, high accuracy control system is inevitable technology for development of high precision machine tools. Especially, among these, design of spindle system is one of the most important technologies leading high precision of machine tool and high quality of manufactured products. A high speed and high precision spindle system which will be used for final machining of ferrule, is designed considering the effect of heat, cutting torque, cutting force, and work-piece materials. The detailed design and analysis process are presented.
이민화,백훈(사회자),김선우(토론자),김희대(토론자),송병선(토론자),안건준(토론자),임종태(토론자),김예지,김애선,주강진,윤예지,윤혁준 KCERN 2018 포럼보고서 Vol.- No.52
1. 국민소득 3만불 이후의 성장전략은 혁신과 분권의 탈추격 전략에 입각해야 하며, 지역혁신은 지역의 지자체와 사회 파트너가 참여하는 구조로 변경되어야 할 것임 2. 전국적으로 혁신 생태계는 양적인 성장을 하고 있지만 지역 혁신 생태계는 서울과 경기 등 수도권 집중 등 양극화 되고, 지역 간 GRDP 격차는 확대되고 있어 중앙정부 중심의 발전 전략은 한계가 있음을 입증 3. 전국 지역별 혁신생태계 간담회를 통해 지역 간 격차, 사전규제와 사일로규제, 스케일업과 스타트업의 불균형의 문제와 중앙정부 중심의 중앙-지방의 거버넌스, 협력과 정보 공유의 부재가 문제점으로 논의되었음 4. 또한, KCERN의 Quad Cyle 모델(2014) 기반 지역별 혁신생태계 인식에 대한 설문조사 결과 수도권에서는 혁신 생태계의 중요한 요소로서 개방문화와 협력 플랫폼이 필요하다고 인식하고 있었으나 상대적으로 자원이 부족한 비수도권에서 공공기관 지원이 혁신의 자원으로서 중요하며, 시장과 연계할 수 있는 통로가 필요하다는 응답이 많았음 5. 이에 따라 KCERN은 지역 중심의 혁신 생태계 조성을 위한 3대 전략으로 1)국가 거버넌스, 2)지역 거버넌스, 3)혁신생태계 활성화를 제시하고자 함 ① 국가 거버넌스: 개방플랫폼정부, 중앙정부는 공유와 협력 구조, 지방정부는 지원과 혁신생태계의 구축 ② 지역 거버넌스: V(가치).I(정보).P(이익)을 공유하는 O2O 오케스트라 거버넌스 구축 ③ 혁신생태계: 스타트업과 스케일업의 균형화, 원칙적 재도전 허용, 기업가정신 활성화 6. 중앙 중심의 통제와 보호에서 지방 중심의 자율과 경쟁으로 패러다임 변화가 지역과 국가 혁신의 관건임
황정호(J. H. Hwang),노지훈(J. H. Roh),정일용(I. Y. Chung),안건준(K. J. Ahn) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
In this paper, Structural analysis of co-axial grinding machine was performed to analyze the structural characteristics including bed and frame. This co-axial grinding machine is used for manufacture of ferrule, a fiber optic connector, which connect and align fiber optics cable on fiber-optic communication. Structural deformation due to self-weight and mode analysis for natural frequency were performed using ANSYS Workbench program. The structural design of co-axial grinding was changed based on the previous results of structural analysis. The results of analysis were presented to comparison of previous results. Improved design was proposed based on the previous results of analysis and it is proved the structure to be more stable than previous structure.
이석우(S.W.Lee),최헌종(H.Z.Choi),최영재(Y.J.Choi),안건준(G.J.Ahn) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
As recently optical communication industry is developed, request of optical communication part is<br/> increased. Ferrule is very important part which determines transmission efficiency and quality of<br/> information in the optical communication part. Most of ferrule processes are grinding which request<br/> high processing precision. Particularly, concentricity and cylindricity of inner and outer diameter is very<br/> important. The co-axle grinding process of ferrule is to make its concentricity all of uniform before<br/> centerless grinding. Surface integrity of ferrule is affected by kind of grinding wheels, grinding<br/> conditions, and characteristic of workpiece and equipment. In this study, surface integrity of workpiece<br/> according to change of grinding wheel speed, feed rate, regulating wheel speed and grinding force is<br/> investigate to improve the concentricity and roundness of ferrule from many experiments.