Vibration stress relief of DH 36 rectangle welded plates
Vibration stress relief(VSR)is widely used in reducing residual stress in welded structures.However,the effectiveness of this method is still instable in some circumstance.In this study,a covert negative treatment phenomenon was investigated,i.e.natural frequency of welded structures decreased after VSR but residual stress in one direction increased.When the alteration of natural frequency after VSR is significant,the residual stresses in both the longitudinal and transversal directions shall decrease.Otherwise,residual stresses may increase on one direction.Thus,sufficient power shall be applied to the welded structures to avoid negative results.
Shuqi Li Hongyuan Fang
School of Electromechanical and Automobile Engineering,Changzhou Vocational Institute of Engineering Harbin Institute of Technology,Harbin,150001,P.R.China
国际会议
上海
英文
1-4
2017-12-28(万方平台首次上网日期,不代表论文的发表时间)