Stress analysis of the Module Coil (TOKI-MC) as an R&D program for the Large Helical Device
✍ Scribed by M. Sakamoto; T. Mito; A. Nishimura; S. Imagawa; H. Tamura; K. Takahata; N. Yanagi; S. Yamada; J. Yamamoto
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 317 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0920-3796
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✦ Synopsis
The Module Coil (TOKI-MC) was designed and fabricated in order to study the mechanical properties of the helical coils of the Large Helical Device (LHD). The magnetic field inside the winding of TOKI-MC has been calculated assuming that the current density is uniform in the winding and the cross section perpendicular to the current is rectangular. The maximum magnetic field is 7.6 T and the electromagnetic force per unit length is about I1 MN/m. Stress analysis has been performed by using the finite element method in order to investigate the deformation behavior of the winding. The twisted solenoid winding tends to become a normal solenoid one and then the stress to the coil case is up to 35 MPa. The possibility of generation of a normal zone may be suggested.