HL-2A装置烘烤时LHCD系统的应力分析

Analysis of stress on the LHCD system during baking the HL-2A tokamak

测量了HL-2A装置烘烤期间由于温度变化引起的LHCD天线系统位移,得到了装置真空室达到最高的温升112℃时的真空室和天线的总的最大位移为3.47mm,其中天线系统自身的位移为0.9mm。根据这个位移,定性地算出LHCD系统中可能产生的应力。据此,分析了烘烤对LHCD系统带来的影响以及提出了可能采取的缓解措施。

Measurement of the LHCD antenna system displacement due to the temperature change is described. The maximal displacement of the LHCD antenna system and the HL-2A vacuum vessel is 3.47mm, while the displacement of the LHCD antenna system is 0.9mm, at the maximal vacuum vessel temperature 112℃. From this displacement, the stress on the LHCD system was calculated. Analyzing the effect on the LHCD system by the baking, the possible means for LHCD transmission system to mitigate it are put forward.