本文基于大型有限元软件ABAQUS，开发了一个顺次耦合的焊接应力计算程序，对P 91钢焊接接头的残余应力场进行了模拟。
A coupling calculation method for welding stress was developed by ABAQUS code. The residual stress for welded joint of P91 steel was simulated by the method above.
本文利用ADINA非线性分析有限元程序，对低碳钢管道环焊缝接头焊接残余应力进行计算。
In this paper, the residual welding stresses in a low carbon steel girth butt welded pipe are calculated with a nonlinear finite element code ADINA.
利用可编程序控制器（PLC）控制步进电机和电焊机，实现T型管道接头焊接的自动化控制。
The PLC controlled system which is used to control step-motor and electric welding machine is introduced in this paper, and automatic control of T-type channel Joints is realized.
利用可编程序控制器（PLC）控制步进电机和电焊机，实现T型管道接头焊接的自动化控制。
The PLC controlled system which is used to control step-motor and electric welding machine is introduced in this paper, and automatic control of T-type channel Joints is realized.
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