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RISS 인기검색어
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- 저자 : 장성현(S. H. Jang) (검색결과 87 건)
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최영휴(Y. H. Choi),장성현(S. H. Jang),김인수(I. S. Kim),오창환(C. H. Oh),조용주(Y. J. Cho) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
In this paper, dynamic analysis a spindle system for 5-axis multi-tasking machine by using ADROS, which is our own developed S/W for dynamic design analysis of rotor systems. As the result, the critical speed of our spindle system for 5-axis multi-tasking machine is above twice of the operating speed.
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최영휴(Y. H. Choi),장성현(S. H. Jang),김인수(I. S. Kim),오창환(C. H. Oh),조용주(Y. J. Cho) 한국생산제조학회 2006 한국생산제조시스템학회 학술발표대회 논문집 Vol.2006 No.5
In this paper, dynamic analysis a spindle system for 5-axis multi-tasking machine by using ADROS, which is our own developed S/W for dynamic design analysis of rotor systems. As the result, the critical speed of our spindle system for 5-axis multi-tasking machine is above twice of the operating speed.
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끝단 질량을 갖는 외팔보 형태의 다자유도 마이크로 동감쇠기에 관한 연구
장성현(S. H. Jang),최영휴(Y. H. Choi),박종권(J. K. Park) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
In this study, a cantilever typed multi-degree-of-freedom micro dynamic damper is designed for micro-machine tool to reduce or to avoid its resonant vibrations. The proposed micro dynamic damper consists of three cantilever beams and a rigid body suspended from the cantilever beam. For dynamic analysis and design synthesis, a vibrating system with the dynamic damper is mathematically modelled as a lumped parameter model, in which cantilever beams and rigid body are idealized as springs and a mass respectively. Natural frequencies and harmonic response function of the mathematical model are obtained by using modal analysis theory. From the result, the spring constants and mass of the dynamic damper which eliminates the resonant vibrations of the main system can be determined. A case study shows the proposed cantilever typed micro dynamic damper can successfully reduce vibrations of the main machine, in the three different directions, at a specified resonant frequency.
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