Abstract:

In order to test the reliability of ITER magnet support structure, the multi-dimensional loading test platform was established for mechanical properties test of support components. The measurement and control system consists of seven sets of EDC controller and board, computer system, 16-channel quasi-dynamic strain gauge, 25 sets of displacement sensors, 7 sets of load and displacement sensors in the cylinders. On the basis of the programmable language, the measurment and control process for the muti-channel loading is realized, and the synchronizing control experiment with high precision for 7 sets of twin-cylinders is accomplished by using EDC220 digital controllers. Under the typical loading conditions, the engineering test result shows that the design of the system is rational, the control system is reliable, and it can guarantee the next requirement of the experiment.

Key words: ITER gravity support, FEM analysis, Complex loading system, Engineering test

摘要：

为了验证ITER 磁体支撑结构的可靠性，建立了多维加载测试平台对支撑部件进行机械性能检测。测量控制系统由7 台EDC 控制器、计算机系统、16 通道准动态应变仪、25 只位移传感器、7 套油缸中的负荷和位移传感器组成。基于可编程语言，利用EDC220 数字控制器实现了多通道协调加载的测量和控制过程，完成了 7 套双油缸高精度同步控制实验。针对典型的加载工况进行工程测试。结果表明，测控系统设计合理，控制系统可靠，能满足下一步的实验要求。

关键词: ITER磁体支撑, 多维加载, EDC220控制器