大型水陆两栖飞机舱段入水冲击实验研究

孙丰1,2,魏飞1,2,吴彬1,2,张家旭1,2,褚林塘1,3

振动与冲击 ›› 2019, Vol. 38 ›› Issue (12) : 39-43.

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PDF(1977 KB)
振动与冲击 ›› 2019, Vol. 38 ›› Issue (12) : 39-43.
论文

大型水陆两栖飞机舱段入水冲击实验研究

  • 孙丰1,2,魏飞1,2,吴彬1,2,张家旭1,2,褚林塘1,3
作者信息 +

An experimental study on water impact of large amphibious aircrafts

  • SUN Feng1, 2, WEI Fei1, 2,WU Bin1, 2, ZHANG Jiaxu1, 2 ,CHU Lintang1, 3
Author information +
文章历史 +

摘要

传统的水上飞机水载荷试验基本采用刚性缩比模型,不能计及弹性变形及缩尺比对载荷的影响。利用大型水陆两栖飞机舱段开展着水载荷试验研究,针对大型试验件开展了试验方案设计,开展不同重量状态和入水速度着水试验,分析加速度峰值的变化规律、压力的时历特性和分布特性,对比不同浸湿半宽下加速度的理论与试验值。结果表明,局部压力曲线出现了二次峰值现象;加速度峰值随着重量和入水速度的增大非线性增大;随着重量的增大,加速度峰值对应的浸湿半宽增大,速度对此影响较小;Von-Karman理论较Wagner理论更接近试验结果;着水速度越小,重力对结构入水过程影响越大。

Abstract

The traditional seaplane water load test basically adopts the rigid ratio model, which does not take into account the influence of elastic deformation and scale ratio on load.A large amphibious aircraft cabin section was used to carry out a water load test and a test plan was designed for large test pieces.Different weight states and water-entry speeds were tested.Changes of acceleration peaks, the history and distribution of pressure characteristics were analyzed.The theoretical and experimental values of accelerations at different half widths of wetting were compared.The results show that the secondary peak phenomenon appears in the partial pressure curve; the acceleration peak increases nonlinearly with the weight and the water-entry velocity; as the weight increases, the half width of wetting corresponding to the acceleration peak increases, and the velocity influences it mildly; The Von-Karman theory is closer to the experimental result than the Wagner theory; the smaller the water-entry velocity, the greater the influence of gravity on the water entry of the structure.

关键词

水陆两栖飞机 / 舱段 / 入水冲击 / 实验 / 载荷

Key words

amphibious aircraft / cabin / water impact / Experimental / loading

引用本文

导出引用
孙丰1,2,魏飞1,2,吴彬1,2,张家旭1,2,褚林塘1,3. 大型水陆两栖飞机舱段入水冲击实验研究[J]. 振动与冲击, 2019, 38(12): 39-43
SUN Feng1, 2, WEI Fei1, 2,WU Bin1, 2, ZHANG Jiaxu1, 2,CHU Lintang1, 3. An experimental study on water impact of large amphibious aircrafts[J]. Journal of Vibration and Shock, 2019, 38(12): 39-43

参考文献

[1] 骆寒冰,徐慧,余建星等.舰船砰击载荷及结构动响应研究综述[J].船舶力学,2010,14(4):439-450.
LUO Han-bing, XU Hui, YU Jian-xi et al. Review of the state of the art of dynamic responses induced by slamming loads on ship structures[J]. Journal of Ship Mechanics ,2010,14(4):439-450.
[2] Chuang, S.-L.. Slamming of rigid wedge-shaped bodies with various dead-rise angles[R]. Department of the Navy, 1966.
[3]Ochi M K, Motter L E.Prediction of slamming characteristics and hull responses for ship design[J].Transactions SNAME,1973,81:144-177.
[4]  Ei-Mahdi Yettou, Alain Desrochers, Yvan Champoux. Experimental study on the water impact of a symmetrical wedge [J].Fluid Dynamic Research, 2006, 38, 47-66.
[5]Aboulghit Malki Alaoui, Alain Nême. Slamming Load during Vertical Water Entry at Constant Velocity [C]. Proceedings of the Twenty-second (2012) International Offshore and Polar Engineering Conference, Rhodes, Greece,2012,801-806
[6]Panciroli, R, Abrate, S et al. Hydroelasticity in water-entry problems: Comparison between experimental and SPH results. Composite Structures, 2012,94:532–539.
[7] 莫立新,王辉,蒋彩霞等. 变刚度楔形体板架落体砰击试验研究[J].船舶力学,2011,15(4): 394-401.
MO Li-xin, WANG Hui, JIANG Cai-xia. Study on dropping test of wedge grillages with various types of stiffness [J]. Journal of Ship Mechanics, 2011,15(4): 394-401.
[8] 孙辉,卢炽华,何友生.二维楔形体冲击入水时的流固耦合响应的试验研究[J].水动力学研究与进展, 2003, 18(1): 104-109
SUN Hui, LU Zhi2hua, HE You2sheng. Experimental research on the fluid-structure interaction in water entry of 2D elastic wedge [J]. JOURNAL OF HYDRODYNAMI -CS, 2003, 18(1): 104-109
[9]王明振,褚林塘,吴彬等.水陆两栖飞机典型横截面入水撞击实验研究[J].爆炸与冲击,2016, 36(3):313-318
WANG Mingzhen, CHU Lintang, WU Bin et al. Experimental study on the water impact of the typical cross section for amphibious seaplane[J]. EXPLOSION AND SHOCK WAVES,2016,36(3): 313-318
[10]褚林塘,孙丰,廉滋鼎.水陆两栖飞机船体着水载荷数值与试验分析[J].振动与冲击,2016,35 (15):211-215.
[11]CHU Lintang, SUN Feng, LIAN Ziding. Numerical and experimental analysis of the water load of amphibious aircraft hull[J]. JOURNAL OF VIBRATION AND SHOCK,2016,35 (15):211-215.
[12]Xu,G.D., Duan,W.Y., Wu,G.X 2010 Simulation of water entry of a wedge through free fall in three degrees of freedom, Proceeding of Royal Society A 466, 2219-2239.
Xu, G.D., Duan, W.Y., Wu, G.X., 2008, Numerical simulation of oblique water entry of an asymmetrical wedge, Ocean Engineering. 35, 1597-1603.
[13]戴仰山,沈进威,宋竟正.船舶波浪载荷[M].北京:国防工业出版社,2007:120-121.
SHIP WAVE LOADS [M]. BeiJing: National Defense Industry Press,2007:120-121.

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