Resistance evaluation for flying boats sliding at medium and high speed in calm water
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摘要: 根据水上飞机起飞滑行阶段特殊的多介质环境,参考滑行艇水面滑行阶段的阻力特性分析方法,提出一种考虑气动布局影响的估算船身式水上飞机中高速静水滑行阻力的半理论半经验公式;用此公式计算得到某船身式水上飞机中高速滑行阶段的水动阻力及俯仰角随体积弗劳德数变化曲线,并分析水动阻力及俯仰角变化的原因;根据得到的水动阻力及俯仰角,计算某船身式水上飞机起飞滑跑距离,计算结果与试验结果一致,间接验证了所提出阻力计算公式的有效性,同时也为计算船身式水上飞机起飞滑跑距离提供一种思路.Abstract: Considering the unique multimedia condition during take-off process of a flying boat and referring to the method of studying the resistance performance of a planning boat in the sliding process, a formula, to evaluate the resistance of a flying boat at medium and high speed in calm water, was proposed. The formula combines theoretical analysis and empirical correction and also includes the effect of aerodynamic distribution. With this formula, graphs illustrating hydrodynamic resistance and pitch angle varying with the volume Froude number were obtained and the reasons for the varying were analyzed. Take-off running distance was calculated with the hydrodynamic resistance and pitch angle that calculated from the formula. As the calculated take-off running distance is in consistent with experimental results, the validation of the formula was verified indirectly. And a method to calculate the take-off running distance of a flying boat was also proposed at the same time.
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[1] 褚林塘,叶树林. 水上飞机文集[M].北京:航空工业出版社,2011:77-95,96-108. Zhu L T,Ye S L.Collected works of seaplane[M].Beijing:Aviation Industry Press,2011:77-95,96-108(in Chinese). [2] Truscott S,Parkinson J B,Ebert J W,et al.Hydrodynamic and aerodynamic tests of models of flying-boat hulls designed flow aerodynamic drag-NACA models 74,74-A,and 75,NACA-TN-668[R].Washington,D.C.:NACA,1938. [3] Parkinson J B,Olson R E,House R O.Hydrodynamic and aerodynamic tests of a family of models of seaplane floats with varying angles of dead rise-NACA models 57-A,57-B,and 57-C,NACA-TN-716[R].Washington,D.C.:NACA,1939. [4] Davidson K S M,Locke F W S.General tank tests on the hydrodynamic characteristics of four flying-boat hull models of differing length-beam ratio,NACA-ARR-4F15[R].Washington,D.C.:NACA,1944. [5] Parkinson J B,Olson R E,Dreley E C,et al.Aerodynamic and hydrodynamic tests of a family of models of flying-boat hulls derived from a streamline body:NACA model 84 series,NACA-ARR-3I15[R].Washington,D.C.:NACA,1943. [6] Qiu L J,Song W B.Efficient decoupled hydrodynamic and areodynamic analysis of amphibious aircraft water takeoff process[J].Joural of Aircraft,2013,50(5):1369-1379. [7] 倪崇本,朱传仁,缪国平,等.计及航行姿态变化的高速多体船阻力预报[J].水动力学研究与进展A辑,2011,26(1):101-107. Ni C B,Zhu C R,Miao G P,et al.The resistance prediction for high speed multi-hull vessels with consideration of hull gesture variation during voyage[J].Chinese Journal of Hydrodynamic,2011,26(1):101-107(in Chinese). [8] 董文才,吴晓光,夏飞,等.一种考虑动升力影响的高速艇迎浪纵向运动的数学模型[J].海军工程大学学报,2005,17(4): 32-37. Dong W C,Wu X G,Xia F,et al.Mathematical model on longitudinal motion of high speed craft in heading sea considering effect of hydrodynamic lift[J].Journal of Naval University of Engineering,2005,17(4):32-37(in Chinese). [9] Zhu Y G,Fan G L,Yi J Q.Modeling longitudinal aerodynamic and hydrodynamic effects of a flying boat in calm water[C]//Proceedings of the 2011 IEEE International Conference on Mechatronics and Automation.Piscataway,NJ:IEEE Press,2011:2039-2044. [10] 武庆威,高霄鹏,吴彬.水上飞机滑行阶段静水阻力的一种估算方法[J].航海工程,2013,42(3):154-157. Wu Q W,Gao X P,Wu B.A method to evaluate the resistance of seaplane sliding in still water[J].Ship & Ocean Engineering,2013,42(3):154-157(in Chinese). [11] 赵连恩,谢永和. 高性能船舶原理与设计[M].北京:国防工业出版社,2009:255,263-266. Zhao L E,Xie Y H.The principle and design of high performance ships[M].Beijing:National Defense Industry Press,2009:255,263-266(in Chinese). [12] 张乔斌,尹成彬,吴开峰.滑行艇阻力近似计算方法对比研究[J].中国舰船研究,2012,7(3):25-29. Zhang Q B,Yin C B,Wu K F.Comparison between “ЦАГИ” method and SIT method for resistance prediction of planning crafts[J].Chinese Journal of Ship Research,2012,7(3):25-29(in Chinese) [13] 李云波. 船舶阻力[M].哈尔滨:哈尔滨工程大学出版社,2005:120-123. Li Y B.Ship resistance[M].Harbin:Harbin Engineering University Press,2005:120-123(in Chinese). [14] 方振平,陈万春,张曙光.航空飞行器飞行动力学[M].北京:北京航空航天大学出版社,2005:71-72. Fang Z P,Chen W C,Zhang S G.Aviation aircraft flight dynamics[M].Beijing:Beihang University Press,2005:71-72(in Chinese). [15] 许震宇,成航,李沙.地效飞行器水面起飞滑跑距离估算方法[J].飞机设计,2011,31(5):12-14. Xu Z Y,Cheng H,Li S.The estimated method of the takeoff distance of a WIG on water[J].Aircrfat Design,2011,31(5):12-14(in Chinese).
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