CAJ | 학술논문

建立模拟焊接过程的三维有限元模型，得到了焊接残余应力的应力场分布，通过对此焊接残余应力场的分布进行研究，可以对焊接结构的质量和使用性能进行预测。应用ANSYS的模态分析功能，得到了模型的固有频率，在固有频率下进行超声冲击消除残余应力会得到较好的效果，并验证了输入频率大于固有频率时，超声冲击消除残余应力的效果与在固有频率下冲击的效果差别不大。
건립모의한접과정적삼유유한원모형，득도료한접잔여응력적응력장분포，통과대차한접잔여응력장적분포진행연구，가이대한접결구적질량화사용성능진행예측。응용ANSYS적모태분석공능，득도료모형적고유빈솔，재고유빈솔하진행초성충격소제잔여응력회득도교호적효과，병험증료수입빈솔대우고유빈솔시，초성충격소제잔여응력적효과여재고유빈솔하충격적효과차별불대。
The 3D finite element model of welding process is set up ,the distribution of welding residual stress is got by simulation . Based on the residual stress field ,the quality of welding structure can be predicted .By use of the modal analysis function of ANSYS , the natural frequency of the model can be obtained .Based on the natural frequency , the ultrasonic impact test to eliminate the welding residual stress is carried out ,and a good effect is got .If the input frequency is greater than the natural frequency ,the effect of eliminating residual stress is as good as that under the natural frequency .