双经纬仪测量系统在测量薄板结构焊后变形中的应用

AN APPLIED STUDY ON WELDING DISTORTION MEASURING SYSTEM OF THIN PLATE STRUCTURE BY TWO - THEODOLITES

在一些情况下,焊后变形可降低结构的性能.本项工作的目的就是测量焊后面外变形并提出了控制变形的措施.本文确定了测量方法并用此方法测定薄板结构,如客车侧墙结构的焊后变形.用有限元方法可以预测焊接变形,最后分析了减少变形的方法.

The objective of this work was to measure the out - of - plane distortion and introduce a distortion control measure during welding fabrication. In this paper, a measurement method was defined, the primary distortion modes were identified for the side - wall of carriage, the finite element analysis for predicting distortion in carriage structure was developed. Finally, the method for reducing distortion ais introduced.