焊接残余应力对环肋圆柱壳声辐射特性影响分析
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摘要
以环肋圆柱壳为对象,开展焊接残余应力对结构声辐射特性影响的研究。建立含预应力的圆柱壳结构声辐射理论方程,以此为基础,建立结构模型,开展数值分析。以残余应力为变量,研究了残余应力幅值和焊缝类型对结构声辐射功率和声辐射指向性的影响。结果表明,由于焊接残余应力的存在,改变了结构的刚度,继而影响了结构的声辐射特性,且其影响程度与残余应力幅值和焊缝类型有关。研究结果可为精确预报结构声辐射特性提供参考。
The ring-stiffened cylindrical shell was taken to research the influence of welding residual stress on the structural acoustic radiation characteristics. The structural-acoustic equation of cylindrical shell with pre-stress was proposed. The structural model was established to conduct the numerical analysis. The residual stress was applied as a variable to research the influence of residual stress amplitude and weld type on structural acoustic radiation power and acoustic radiation directivity. The results show that due to the welding residual stress, the stiffness of the structure is changed, then the structural acoustic radiation characteristics is influenced. The extent of influence is related to the stress amplitude and weld type. The research can provide a reference for the accurate prediction of structural acoustic radiation characteristics.
The ring-stiffened cylindrical shell was taken to research the influence of welding residual stress on the structural acoustic radiation characteristics. The structural-acoustic equation of cylindrical shell with pre-stress was proposed. The structural model was established to conduct the numerical analysis. The residual stress was applied as a variable to research the influence of residual stress amplitude and weld type on structural acoustic radiation power and acoustic radiation directivity. The results show that due to the welding residual stress, the stiffness of the structure is changed, then the structural acoustic radiation characteristics is influenced. The extent of influence is related to the stress amplitude and weld type. The research can provide a reference for the accurate prediction of structural acoustic radiation characteristics.
引文
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[10]ZHAO X,GENG Q,LI Y.Vibration and acoustic response of an orthotropic composite laminated plate in a hygroscopic environment[J].Journal of the Acoustical Society of America,2013,133(3):1433-42.
[11]李良碧,万正权,王自力,等.环肋圆柱壳结构焊接残余应力和变形的数值模拟[J].焊接技术,2011,40(3):9-12.LI Liang,WAN Zheng-quan,WANG Zi-li,et al.Numerical simulation on welding residual stresses and deformation of ring-stiffened circular cylindrical shell[J].Welding Technology,2011,40(3):9-12.
[12]LIU Y,CHEN L.The effect of weld residual stress on the free vibrational characteristics of cylindrical shell through the analytical method[J].Journal of Vibroengineering,2016,18(1):334-349.
[13]YANG N,CHEN L,YI H,et al.The effect of welding residual stress on the free vibration of underwater cylindrical shell[J].Journal of Vibroengineering,2016,18(4).
[14]陈炉云,李磊鑫,张裕芳.含局部预应力的圆柱壳结构声辐射特性分析[J].上海交通大学学报,2014,48(8):1084-1089.CHEN Lu-yun,LI Lei-xin,ZHANG Yu-fang.Characteristics analysis of structural-acoustic of cylindrical shell with prestress in local areas[J].Journal of Shanghai Jiao Tong University,2014,48(8):1084-1089.
[15]洪江波,杜仲民,侯海量,等.大型耐压壳环焊缝焊接残余应力实验研究[J].船舶工程,2006,28(5):14-18.HONG Jiang-bo,DU Zhong-min,HOU Hai-liang.Experimental study of residual stress in girth weld of large pressure hull[J].Ship Engineering,2006,28(5):14-18.
[2]陈清坤,陈美霞,和卫平,等.舱壁与压载对流场中有限长圆柱壳声辐射影响[J].舰船科学技术,2010,32(11):21-25.CHEN Qing-kun,CHEN Mei-xia,HE Wei-ping,et al.Impact of bulkhead and ballast on acoustic radiation of submerged finite cylindrical shell[J].Ship Science and Technology,2010,32(11):21-25.
[3]张聪,陈美霞,高菊,等.双层加筋圆柱壳在不同舷间连接形式下的声辐射性能分析[J].固体力学学报,2011,32(5):465-474.ZHANG Cong,CHEN Mei-xia,GAO Ju,et al.Analysis of sound radiation of double stiffened shells connected by different structures[J].Chinese Journal of Solid Mechanics,2011,32(5):465-474.
[4]LOOCK J V D,DéCULTOT D,LéON F,et al.Acoustic radiation of a submerged cylindrical shell in low frequency[J].Journal of the Acoustical Society of America,2013,133(1):EL26.
[5]GUO W,LI T,ZHU X,et al.Vibration and acoustic radiation of a finite cylindrical shell submerged at finite depth from the free surface[J].Journal of Sound and Vibration,2017,393:338-352.
[6]邓博文,朱翔,李天匀,等.不同模型及不同载荷形式对单层圆柱壳声振特性的影响分析[J].舰船科学技术,2015,37(12):13-17.DENG Bo-wen,ZHU Xiang,LI Tian-yun,et al.Effects of different models and driving forces on vibroacoustic characteristic of single cylinder shell[J].Ship Science and Technology,2015,37(12):13-17.
[7]陈美霞,骆东平,王祖华,等.激励力对双层圆柱壳声辐射性能的影响[J].船舶力学,2005,9(2):124-130.CHEN Mei-xia,LUO Dong-ping,WANG Zu-hua,et al.Effect of driving forces property on characteristics of sound radiation from finite double cylindrical shell[J].Journal of Ship Mechanics,2005,9(2):124-130.
[8]刘佩,刘书文,黎胜.潜深对水下圆柱壳振动声辐射特性的影响[J].舰船科学技术,2014,36(5):36-41.LIU Pei,LIU Shu-wen,LI Sheng.The effect of immersion depth of submerged cylindrical shell on vibro-acoustic characteristics[J].Ship Science and Technology,2014,36(5):36-41.
[9]FARSHIDIANFAR A,OLIAZADEH P.Free vibration analysis of circular cylindrical shells:comparison of different shell theories[J].International Journal of Mechanics and Applications,2012,2(5):74-80.
[10]ZHAO X,GENG Q,LI Y.Vibration and acoustic response of an orthotropic composite laminated plate in a hygroscopic environment[J].Journal of the Acoustical Society of America,2013,133(3):1433-42.
[11]李良碧,万正权,王自力,等.环肋圆柱壳结构焊接残余应力和变形的数值模拟[J].焊接技术,2011,40(3):9-12.LI Liang,WAN Zheng-quan,WANG Zi-li,et al.Numerical simulation on welding residual stresses and deformation of ring-stiffened circular cylindrical shell[J].Welding Technology,2011,40(3):9-12.
[12]LIU Y,CHEN L.The effect of weld residual stress on the free vibrational characteristics of cylindrical shell through the analytical method[J].Journal of Vibroengineering,2016,18(1):334-349.
[13]YANG N,CHEN L,YI H,et al.The effect of welding residual stress on the free vibration of underwater cylindrical shell[J].Journal of Vibroengineering,2016,18(4).
[14]陈炉云,李磊鑫,张裕芳.含局部预应力的圆柱壳结构声辐射特性分析[J].上海交通大学学报,2014,48(8):1084-1089.CHEN Lu-yun,LI Lei-xin,ZHANG Yu-fang.Characteristics analysis of structural-acoustic of cylindrical shell with prestress in local areas[J].Journal of Shanghai Jiao Tong University,2014,48(8):1084-1089.
[15]洪江波,杜仲民,侯海量,等.大型耐压壳环焊缝焊接残余应力实验研究[J].船舶工程,2006,28(5):14-18.HONG Jiang-bo,DU Zhong-min,HOU Hai-liang.Experimental study of residual stress in girth weld of large pressure hull[J].Ship Engineering,2006,28(5):14-18.