鱼雷斜入水过程非定常运动仿真研究
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摘要
针对鱼雷反潜时复杂的入水过程,采用FEM/SPH耦合方法,对鱼雷入水过程进行了仿真,研究了鱼雷入水过程中的冲击加速度和入水初始段鱼雷姿态的变化。仿真过程中发现了"忽扑"现象对鱼雷入水后非定常运动的重要影响。通过分析试验数据,完善仿真模型,模拟了"低压力"引起的鱼雷入水后的"忽扑"现象,仿真分析了鱼雷真实的入水非定常运动过程。结果可为鱼雷入水弹道设计和结构承载能力设计提供一定的依据。
For the complex process of torpedo water entry, the process of torpedo water entry is simulated by FEM/SPH coupling method to study the changes of the impact acceleration and the attitude of torpedo. The important effect of the ‘whip' is found for the unsteady movement of torpedo water entry. The phenomenon of ‘whip', which is due to the low pressure when torpedo water impact, is simulated by analyzing the test data and improving the simulation model. The real process of the torpedo water entry is analyzed. The simulation results could provide a basis analysis for water entry trajectory design and structure load bearing design of torpedo.
For the complex process of torpedo water entry, the process of torpedo water entry is simulated by FEM/SPH coupling method to study the changes of the impact acceleration and the attitude of torpedo. The important effect of the ‘whip' is found for the unsteady movement of torpedo water entry. The phenomenon of ‘whip', which is due to the low pressure when torpedo water impact, is simulated by analyzing the test data and improving the simulation model. The real process of the torpedo water entry is analyzed. The simulation results could provide a basis analysis for water entry trajectory design and structure load bearing design of torpedo.
引文
[1]Von Karman T.The impact of seaplane floats during landing[R].National Advisory Committee for Aeronautics,NACATechnical Notes 321.1929.
[2]Oger G,Doring M,Alessandrini B.Two-dimensional SPH simulations of wedge water entries[J].Journal of Computational Physics,2005,213:803-822.
[3]Yettou E M,Desrochers A,Champoux Y.Experimental study on the water impact of a symmetrical wedge[J].Fluid Dynamics Research,2006,38(2):47-66.
[4]Panciroli R.Water entry of flexible wedges:Some issues on the FSI phenomena[J].Applied Ocean Research,2012,39(3):72-74.
[5]严忠汉.鱼雷入水初期水弹道稳定技术分析[J].水动力学研究与进展,1990,5(3):117-126.Yan Zhonghan.The technology of stabilization of initial trajectory of water entry torpedoes[J].Journal of Hydrodynamics,1990,5(3):117-126.
[6]颜开,史淦君,薛晓中,邵大燮.用Mackey方法计算鱼雷带空泡航行时的入水弹道[J].弹道学报,1998,10(2):93-96.Yan Kai,Shi Ganjun,Xue Xiaozhong,Shao Daxie.The water entry trajectory calculation of a torpedo with cavity by use of mackey method[J].Journal of Ballistics,1998,10(2):93-96.
[7]陈九锡.三维空间入水弹道测量的新方法[J].船舶力学,2001,5(2):5-22.Chen Jiuxi.New method for measuring ballistic parameters just using accelerometers[J].Journal of Ship Mechanics,2001,5(2):5-22.
[8]徐杏钦.鱼雷入水段弹道研究[J].鱼雷技术,2004,12(4):29-31.Xu Xingqin.Investigation of water entry trajectory torpedo[J].Torpedo Technology,2004,12(4):29-31.
[9]潘光,吴文辉,毛昭勇,黄桥高.高空远程滑翔鱼雷全弹道仿真关键技术[J].鱼雷技术,2009,17(4):10-15.Pan Guang,Wu Wenhui,Mao Shaoyong,Huang Qiaogao.Key technologies about complete trajectory simulation for high altitude long range gliding torpedo[J].Torpedo Technology,2009,17(4):10-15.
[10]安伟光,蒋运华,安海.运动体高速入水非定常过程研究[J].工程力学,2011,28(3):251-256.An Weiguang,Jiang Yunhua,An Hai.The unstesdy water entry process study of high speed vehicle[J].Engineering Mechanics,2011,28(3):251-256.
[11]黄华红,杨云,吕燕慧.一种鱼雷俯仰角出现±90°时的姿态仿真方法[J].鱼雷技术,2012,20(3):225-230.Huang Huahong,Yang Yun,Lv Yanhui.Attitude simulation method for torpedo pitch angle at±90°[J].Torpedo Technology,2012,20(3):225-230.
[12]程文鑫,蔡卫军,杨春武.鱼雷小角度入水过程仿真[J].鱼雷技术,2014,22(3):161-164.Cheng Wenxin,Cai Weijun,Yang Chunwu.Simulation on small angle water entry process of torpedo[J].Torpedo Technology,2014,22(3):161-164.
[13]邬明.考虑空泡的空投航行器入水弹道研究[J].四川兵工学报,2015,36(3):23-27.Wu Ming.Research on water entry and underwater trajectory of an airborne vehicle with consideration of cavity[J].Journal of Sichuan Ordnance,2015,36(3):23-27.
[14]朱珠,袁绪龙,刘维.柱体大攻角入水弹道建模与仿真[J].火力与指挥控制,2015,40(2):13-23.Zhu Zhu,Yuan Xulong,Liu Wei.On modeling and simulation of cylinder dropping in water with high angle of attack[J].Fire Control&Command Control,2015,40(2):13-23.
[15]徐宣志.鱼雷力学[M].北京:国防工业出版社,1992.Xu Xuanzhi.Torpedo mechanics[M].Beijing:National Defense Industry Press,1992.
[2]Oger G,Doring M,Alessandrini B.Two-dimensional SPH simulations of wedge water entries[J].Journal of Computational Physics,2005,213:803-822.
[3]Yettou E M,Desrochers A,Champoux Y.Experimental study on the water impact of a symmetrical wedge[J].Fluid Dynamics Research,2006,38(2):47-66.
[4]Panciroli R.Water entry of flexible wedges:Some issues on the FSI phenomena[J].Applied Ocean Research,2012,39(3):72-74.
[5]严忠汉.鱼雷入水初期水弹道稳定技术分析[J].水动力学研究与进展,1990,5(3):117-126.Yan Zhonghan.The technology of stabilization of initial trajectory of water entry torpedoes[J].Journal of Hydrodynamics,1990,5(3):117-126.
[6]颜开,史淦君,薛晓中,邵大燮.用Mackey方法计算鱼雷带空泡航行时的入水弹道[J].弹道学报,1998,10(2):93-96.Yan Kai,Shi Ganjun,Xue Xiaozhong,Shao Daxie.The water entry trajectory calculation of a torpedo with cavity by use of mackey method[J].Journal of Ballistics,1998,10(2):93-96.
[7]陈九锡.三维空间入水弹道测量的新方法[J].船舶力学,2001,5(2):5-22.Chen Jiuxi.New method for measuring ballistic parameters just using accelerometers[J].Journal of Ship Mechanics,2001,5(2):5-22.
[8]徐杏钦.鱼雷入水段弹道研究[J].鱼雷技术,2004,12(4):29-31.Xu Xingqin.Investigation of water entry trajectory torpedo[J].Torpedo Technology,2004,12(4):29-31.
[9]潘光,吴文辉,毛昭勇,黄桥高.高空远程滑翔鱼雷全弹道仿真关键技术[J].鱼雷技术,2009,17(4):10-15.Pan Guang,Wu Wenhui,Mao Shaoyong,Huang Qiaogao.Key technologies about complete trajectory simulation for high altitude long range gliding torpedo[J].Torpedo Technology,2009,17(4):10-15.
[10]安伟光,蒋运华,安海.运动体高速入水非定常过程研究[J].工程力学,2011,28(3):251-256.An Weiguang,Jiang Yunhua,An Hai.The unstesdy water entry process study of high speed vehicle[J].Engineering Mechanics,2011,28(3):251-256.
[11]黄华红,杨云,吕燕慧.一种鱼雷俯仰角出现±90°时的姿态仿真方法[J].鱼雷技术,2012,20(3):225-230.Huang Huahong,Yang Yun,Lv Yanhui.Attitude simulation method for torpedo pitch angle at±90°[J].Torpedo Technology,2012,20(3):225-230.
[12]程文鑫,蔡卫军,杨春武.鱼雷小角度入水过程仿真[J].鱼雷技术,2014,22(3):161-164.Cheng Wenxin,Cai Weijun,Yang Chunwu.Simulation on small angle water entry process of torpedo[J].Torpedo Technology,2014,22(3):161-164.
[13]邬明.考虑空泡的空投航行器入水弹道研究[J].四川兵工学报,2015,36(3):23-27.Wu Ming.Research on water entry and underwater trajectory of an airborne vehicle with consideration of cavity[J].Journal of Sichuan Ordnance,2015,36(3):23-27.
[14]朱珠,袁绪龙,刘维.柱体大攻角入水弹道建模与仿真[J].火力与指挥控制,2015,40(2):13-23.Zhu Zhu,Yuan Xulong,Liu Wei.On modeling and simulation of cylinder dropping in water with high angle of attack[J].Fire Control&Command Control,2015,40(2):13-23.
[15]徐宣志.鱼雷力学[M].北京:国防工业出版社,1992.Xu Xuanzhi.Torpedo mechanics[M].Beijing:National Defense Industry Press,1992.
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