In the numerical simulation of relieving residual stress by hammer peening, contact element technique was firstly adopted for establishing the finite model and calculating the hammer peening.
首次在锤击消除焊接应力的数值模拟研究中，采用接触单元技术建立有限元模型模拟计算锤击作用。
Finally, the parametric simulation program was designed with ANSYS APDL language, various simulation of welding and hammer peening can be analysed through defining different parameters.
最后，利用APDL语言编制了具有一定通用性的参数化模拟分析程序，通过改变模拟参数可以模拟分析不同条件下的焊接与锤击处理。
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