Several welding methods are used in the manufacturing of the CFETR vacuum vessel. These welding methods will inevitably lead to the problems of welding residual stress and welding distortion. Relieving welding residual stress is one of the important works in CFETR vacuum vessel welding and vibration stress relief (VSR) is one of the methods to relief the residual stress in the welding of the CFETR vacuum vessel. In this paper, the vacuum vessel PS3 segment is selected as the research object, and the VSR technology such as excitation point and support regions, excitation force and excitation frequency can be obtained through software simulation combined with the actual situation, which provides technical guidance for improving the effect of residual stress relieving.

在CFETR真空容器的制造中使用了几种焊接方法。这些焊接方法不可避免地会导致焊接残余应力和焊接变形的问题。消除焊接残余应力是CFETR真空容器焊接的重要工作之一，而振动应力消除（VSR）是减轻CFETR真空容器焊接中残余应力的方法之一。本文以真空容器PS3段为研究对象，结合实际情况，通过软件仿真获得了激振点，支点区域，激振力，激振频率等VSR技术，为进一步的研究提供了技术指导。提高了消除残余应力的效果。