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토카막 장치에서 자석 구조물의 조립에 관한 검토 KSTAR TF
김경민(K.M.Kim),최창호(C.H.Choi),홍권희(K.H.Hong),양형렬(H.L.Yang),유인근(I.K.Yu),허남일(N.I.Her),사정우(G.H.Kim),김학근(S.T.Kim),김근홍(H.T.Kim),김상태(J.S.Yang),김홍택(J.S.Bak),양진석(C.H.Kim),박주식(P.Z.Shick),김재호(J. Z. Kim) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
TF magnet structures are the main structural components in the KSTAR magnet systems to protect<br/> the superconducting coils from mechanical, electrical, and thermal loads. TF coil structure supports CS<br/> and PF coil system. The inter-coil structure contains adjustable shear keys and conical bolts to provide<br/> pre-loading in toroidal direction and to resist against in-plane and out-of-plane forces that are the most<br/> critical loads on the TF magnet system. The conical bolts and shear keys are specially designed to<br/> assemble easily and to provide a convenient accommodation for a good alignment. The connection plate<br/> that is one of the prototype fabrications had been manufactured to study adjustability of conical bolts<br/> and shear keys for assembly of TF coil structure. We could measure the misalignments at the keyways<br/> and conical holes with the misalignment measuring instrument.
허남일(N.I. Her),김병철(B.C. Kim),김근홍(G.H. Kim),홍권희(G.H. Hong),사정우(J.W. Sa),김학근(H.K. Kim),김경민(K.M. Kim),박주식(J.S. Bak) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
Vacuum vessel of the KSTAR(Korea Superconducting Tokamak Advanced Research) tokamak is a fully<br/> welded structure with D-shaped cross-section. According to the requirements of the physics design, sixteen<br/> horizontal ports, sixteen slanted ports, sixteen baking and cooling ports, and twenty-four top and bottom<br/> vertical ports are designed for the diagnostics, plasma heating, vacuum pumping, and baking and cooling.<br/> Bellows on these ports are used for flexible components to absorb the relative displacement due to the<br/> vacuum vessel thermal expansion and the electromagnetic force between the vacuum vessel and the cryostat<br/> ports. Fatigue strength evaluation was performed to decide the dimension of the bellows. In order to assure<br/> the quality of the bellows, a prototype bellows for the neutral beam injection port has been fabricated and<br/> tested prior to main fabrication. It was conformed that the prototype bellows has sufficient fatigue strength<br/> and vacuum reliability in the expected load conditions.