含新型连接型式的潜艇内部平面舱壁结构设计及模型试验验证
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摘要
[目的]在潜艇内部平面舱壁设计中,目前是采取分别对舱壁板和构架进行计算的方式,缺乏评估舱壁整体结构极限承载能力的方法,且加强结构端部附近的耐压船体还有局部高应力。为此,[方法]提出一种应用于舱壁加强构架端部的新型连接结构型式,并通过模型试验验证舱壁两侧承载能力是否相同。[结果]有限元分析和试验结果表明,新型连接结构型式能有效降低局部高应力状态,无筋面破舱工况舱壁的极限承载能力比有筋面破舱工况舱壁的大。[结论]所提新型连接结构型式可应用于潜艇内部平面舱壁设计。
[Objectives]The current design of internal plane bulkhead in a submarine mainly applies the calculations of the shell and the reinforcement frame individually,which cannot evaluate the ultimate bearing capacity of the overall bulkhead structure,and also has local high-stress areas on the pressure hull at the ends of the reinforcement frame.[Methods]Therefore,a new connection structure at the end of the reinforcement frame is proposed here,and the ultimate bearing capacity on the two sides of the bulkhead are verified for consistency through a model test.[Results]The FEM and test results show that the new connection structure can reduce the high stress in local areas,and the ultimate bearing capacity of the side without reinforcement frame is higher than that of the side with reinforcement frame.[Conclusions]The new connection structure can be used in the design of the internal plane bulkhead.
[Objectives]The current design of internal plane bulkhead in a submarine mainly applies the calculations of the shell and the reinforcement frame individually,which cannot evaluate the ultimate bearing capacity of the overall bulkhead structure,and also has local high-stress areas on the pressure hull at the ends of the reinforcement frame.[Methods]Therefore,a new connection structure at the end of the reinforcement frame is proposed here,and the ultimate bearing capacity on the two sides of the bulkhead are verified for consistency through a model test.[Results]The FEM and test results show that the new connection structure can reduce the high stress in local areas,and the ultimate bearing capacity of the side without reinforcement frame is higher than that of the side with reinforcement frame.[Conclusions]The new connection structure can be used in the design of the internal plane bulkhead.
引文
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[5]刘水根,杨宇华.基于承载能力的水下承压结构钢质模型制造质量检验要求分析[J].中国舰船研究,2013,8(3):33-39.Liu S G,Yang Y H.Analysis of the manufacturing quality inspection requirements for the steel test model of underwater pressure bearing structures[J].Chinese Journal of Ship Research,2013,8(3):33-39(in Chinese).
[2]国防科学技术工业委员会.潜艇结构设计计算方法:GJB/Z21A-2001[S].北京:国防科学技术工业委员会,2001.National Defense Science and Technology Industry Committee.Methods for design and calculation of submarine structure:GJB/Z 21A-2001[S].Beijing:National Defense Science and Technology Industry Committee,2001(in Chinese).
[3]田旭军,耿黎明.潜艇结构优化技术:CK-35628[R].北京:中国船舶重工集团公司科技报告管理办公室,2017.Tian X J,Geng L M.Optimization of submarine hull structure:CK-35628[R].Beijing:Science and Technology Report Management Office in CSIC,2017(in Chinese).
[4]蔡少俊,马建军,许兵,等.潜艇内部平面舱壁极限承载能力分析[J].舰船科学技术,2012,34(1):36-40.Cai S J,Ma J J,Xu B,et al.The ultimate bearing capability analysis of the submarine internal plane bulkhead[J].Ship Science and Technology,2012,34(1):36-40(in Chinese).
[5]刘水根,杨宇华.基于承载能力的水下承压结构钢质模型制造质量检验要求分析[J].中国舰船研究,2013,8(3):33-39.Liu S G,Yang Y H.Analysis of the manufacturing quality inspection requirements for the steel test model of underwater pressure bearing structures[J].Chinese Journal of Ship Research,2013,8(3):33-39(in Chinese).