地效飞机着水冲击载荷理论计算与试验  

Theoretical calculation and experiment on impact loads of landing of wing-in-ground aircraft on water surface

作　　者：褚林塘 吴彬 王明振 孙丰 CHU Lintang WU Bin WANG Mingzhen SUN Feng(China Aviation Industry General Aircraft Co., Ltd, Zhuhai 519030, China Key Laboratory of High-speed Hydrodynamic Aviation Science and Technology A VlC Special Vehicle Research Institute, Jingmen 448035, China)

机构地区：[1]中航通用飞机有限责任公司,珠海519030 [2]高速水动力航空科技重点实验室,荆门448035 [3]中航工业特种飞行器研究所,荆门448035

出　　处：《航空学报》2016年第12期3698-3705,共8页Acta Aeronautica et Astronautica Sinica

基　　金：民用飞机专项科研项目(MJ-2015-F-028)~~

摘　　要：针对地效(WIG)飞机遭受冲击最为严重的状态——对称断阶着水情况,对影响冲击的各个因素进行了比较分析,在作了一些基本假设后,采用船舶运动中常用的切片理论思想,结合Von Karman水动力学分析的动量概念及Wagner的附连水质量公式,提出了一种理论计算方法。同时,还将理论计算结果与试验结果进行了比对分析。计算值与试验值的比较结果说明,理论计算在较大程度上是可信的,可作为结构设计外载荷确定的参考。The symmetric step of hull landing of the wing-in-ground（WIG）aircraft on water surface,which is the most serious situation,is considered.All the factors influencing the impact are analyzed.A theoretic calculation method is proposed based on the assumption of strip theory of ship motion combining with Von Karman＇s momentum equation for hydrodynamics and Wagner＇s formula for calculation of added mass.Experimental results of the impacting loads are compared with those of theoretical calculation.It is shown that the experiment results are in good agreement with the calculation results,indicating that the theoretical evaluation can provide to a great extent useful information for the design of the WIG aircraft.

关 键 词：地效飞机 水动冲击载荷 对称断阶 切片理论 附连水质量 

分 类 号：V212.13[航空宇航科学与技术—航空宇航推进理论与工程]