The conceptual alternative design for ITER magnet gravity support using clamp bolt

Hou, Bing; Lee, P.Y.; Gallix, R.; Fu, Youkun

doi:10.1016/j.fusengdes.2010.06.024

Cited by 7 publications

(4 citation statements)

References 5 publications

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“…Totally more than 32 kinds of load cases/combinations were carried out. The detailed FEM analysis is reported elsewhere [1,2,3]. The results reveal that the maximum stress intensities of the ITER magnet GS structure are below the allowable stress limit of the materials, and the components of the gravity support have also enough fatigue strength against the cyclic loads of the overturning electromagnetic forces on the TF coils with 30000 cycles, and the GS structure is safe enough.…”

Section: Alternative Designmentioning

confidence: 96%

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Design, qualification & manufacture of ITER gravity supports

Lee

Hou

Sun

et al. 2020

Heliyon

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As one of the key components to support all the magnet coils, the GS faces engineering challenge to its operational safety throughout the design, qualification and manufacturing process as a result of extreme loading condition. The structural safety of GS was confirmed by both the FEM analysis and the semi-prototype engineering test after a long time of design, qualification, manufacture and assembly. Welding the cooling pipe to the flexible plate without obvious deformation as well as tightening uniformly and precisely all the tie rods to clamp the plates were carried out successfully during manufacturing. The result of final vacuum leakage test indicates that the GS can not only meet the ITER vacuum requirement but also have no slow out-gassing. The first set of GS which has passed the ITER acceptance test is to be delivered to ITER construction site soon.

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Section: Alternative Designmentioning

confidence: 96%

“…The frictional contact areas, i.e., among plates and two upper pressing bars, were applied to increase the friction and resist the separate sliding tendency during operation. The detailed structure design is reported elsewhere [1,2].…”

Section: Alternative Designmentioning

confidence: 99%

Design, qualification & manufacture of ITER gravity supports

Lee

Hou

Sun

et al. 2020

Heliyon

Self Cite

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“…Details of the experiment set-up can be seen in [8]. Further test work will be finished in the near future.…”

Section: Redesign Of Gsmentioning

confidence: 99%

R&D of the key components for ITER magnet supports

Lee¹,

Hou²,

Pan³

et al. 2010

Fusion Engineering and Design

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“…The forces in the the Y -and X-directions are applied on the mock-up by Y -hydraulic bolt tensioners and one X-hydraulic bolt tensioner, respectively and the forces (including the forces converted into the moments M x and M y ) in the Z-direction are applied by Z-hydraulic bolt tensioners. The series of torque can be separated into A, B, C and D areas [5] to simplify the moments in the X, Y and Z directions. The loads are scaled down from the GS assembly design loads by a ratio of 5/21, as listed in Table 1 [1] .…”

Section: Introductionmentioning

confidence: 99%

Prototype Engineering Test Platform of ITER Magnet Gravity Support

Lü¹,

Li²,

Binglin³

et al. 2013

Plasma Sci. Technol.

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ITER magnet gravity support (GS) has been redesigned as a structure of preassembled multi-flexible plates instead of the original welded structure. In the past several years, engineering tests of the new structure have been proposed. A prototype engineering test platform is being developed. In order to apply the loads/load combinations onto the test mock-up, seven hydraulic bolt tensioners in three directions have been applied to simulate various loads (forces and moments), through which the deformation of bolts, flexible plates and clamp blocks, the stress distribution in the flexible plates, the friction between the contact surface, etc. can be monitored/tested. The measurement and control system includes seven sets of synchronization controller, a 16-channel strain gauge, 25 sets of displacement sensors, etc. Principles of EDC220 digital controller and development of multi-channel control software are also demonstrated.

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The conceptual alternative design for ITER magnet gravity support using clamp bolt

Cited by 7 publications

References 5 publications

Design, qualification & manufacture of ITER gravity supports

Design, qualification & manufacture of ITER gravity supports

R&D of the key components for ITER magnet supports

Prototype Engineering Test Platform of ITER Magnet Gravity Support

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