The Structure Analysis of the EAST Divertor Assembly Parts

Abstract

In the east updated divertor, some analyses have been done and the results show that the divertor body is safety. This article is about the analysis of divertor assembly parts. In the assembly parts of divertor the vacuum vessel (VV) is the permanent part and can’t be damaged, therefore a weak weld seam structure is designed to protect the important VV. In the same time a series of the finite element analysis has been done under the several loads such as electromagnetic loads and structure loads et al. The static finite element (FE) analysis result indicates that the assembly parts is strong enough to withstand the loads and the stress distribution is also satisfactory according to the design scheme. In the transient FE analysis the convergent stress value indicates that the dviertor assembly parts are safe under the worst case loads of disruption with the 1 MA plasmas current. Through a series of the FE simulation the maximum transient current that the divertor assembly parts can withstand is about 175 kA in the Fig. 8.