中国舰船研究2023，Vol.18Issue(6)：216-225,10.DOI:10.19693/j.issn.1673-3185.02778
焊接工艺参数对船舶加筋板结构的声振特性影响研究
Influence of welding residual stress on dynamic and acoustic behavior of typical ship structures
摘要
Abstract
[Objective]Welding is a common method for connecting ship structures,but it obviously affects their acoustic and vibration characteristics.Thus,it is necessary to study the influence of welding process para-meters on the acoustic and vibration characteristics of structures.[Method]In this paper,the thermo-elastoplastic finite element method and acoustic-structure coupling finite element method are combined to study the influence of welding parameters on the acoustic and vibration characteristics of typical ship stiffened plate structures.[Results]The results show that welding residual stress is significantly affected by welding input power and speed.Higher welding input power and lower welding speeds both result in a larger welding residual stress distribution range which causes changes to the natural frequency,vibration response and radi-ated sound pressure of typical stiffened plate structures.[Conclusion]Welding residual stress should be analyzed to determine the acoustic and vibration response of low-damping welded structures,thereby provid-ing guidance for the formulation of low-noise welding processes.关键词
加筋板/焊接残余应力/声振特性Key words
stiffened plate/welding residual stress/vibration and sound radiation分类
交通工程引用本文复制引用
杜言,俞健,吴卫国,林永水,陈梓恒,赵晓宇..焊接工艺参数对船舶加筋板结构的声振特性影响研究[J].中国舰船研究,2023,18(6):216-225,10.基金项目
国家自然科学基金资助项目(51879208) （51879208）
