Design and research of ITER vacuum insulation cold mass support performance test platform

Abstract

Vacuum insulation cold mass support (CMS) is one of the key supporting components in the International Thermonuclear Fusion Reactor (ITER). In order to detect whether the performance of the manufactured CMS meets the acceptance criteria, it is necessary to conduct a friction performance test and a mechanical strength test before delivery. By analyzing the loading characteristics of the CMS under the complex working conditions, combining the friction test standard ASTM D1894-14 and the engineering calculation results of friction force, a CMS friction performance test platform was designed. Based on the loading conditions of CMS, a CMS mechanical strength test platform was initially designed, and the 10 I-beam was selected as the best meterial for the moment beam through the force analysis of the moment beam. Then, the hydraulic servo device was used to apply working load to the CMS, and the structural design of the equipment and tools related to the mechanical strength test platform was completed. Considering the individual costs of friction performance test and mechanical strength test, a CMS performance integrated test platform was designed through combining with the features of two tests. The results indicate that the CMS performance integrated test platform can shorten the test cycle and reduce the test cost, which provides guarantee for the engineering quality certification and subsequent mass production of CMS.