| Autor: |
Brunson, G.W., Weldon, W.F. |
| Zdroj: |
1990 Plasma Science IEEE Conference Record - Abstracts; 1/ 1/1990, p92-92, 1p |
| Abstrakt: |
Summary form only given. An axial preloading system has been designed and built as part of the 0.06 scale prototype toroidal field (TF) magnet for the IGNITEX experiment. In the prototype TF coil, as in the full size IGNITEX tokamak, the peak stresses in the inner leg during discharge are made more isotropic (hence the von Mises stress intensity is lowered) through axial preloading. Although preliminary (nonpreloaded) tests of the TE magnet should produce fields as high as 15 T, preloading will permit demonstration of the high (20-T) on-axis magnetic field to be achieved in the IGNITEX device. The preloading system for the prototype is a hydraulic press capable of a load of 580 tons. The press is designed with a short stroke which takes the press from a condition of noncontact to full preloading. The preloading press consists of two hardened steel (4340) horizontal plates which are offset by six vertical linkage bars of the same material. Some of the principles for the final press have been demonstrated by the prototype's press, including pivoting joints between the links and plates to eliminate bending stresses in the links, an array of high-pressure hydraulic cylinders to exert a large preload force, and use of a compliant hydraulic system to maintain preload during magnet thermal growth [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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