刘伟,党西军.民用飞机机翼副油箱静载荷计算[J].民用飞机设计与研 究,2020(2):30-33LIU Wei*DANG Xijun.[J].Civil Aircraft Design and Research,2020,(2):30-33.
民用飞机机翼副油箱静载荷计算
  
DOI:10.19416/j.cnki.1674-9804.2020.02.007
中文关键词:亚音速  结构弹性变形  升力线理论  气动弹性修正  悬臂梁
英文关键词:subsonic  structure elastic deformation  lifting line theory  aeroelasticity correction  cantilever beams
基金项目:
作者单位
刘伟,党西军 航空工业西飞西安 710089 
中文摘要:以亚音速、大展弦比的大中型民用飞机机翼挂装副油箱为研究对象,分析CCAR-25部中载荷计算的相关适航条款内容,考虑外挂物自身运动及机翼结构弹性变形对副油箱气动载荷的影响,给出了副油箱静载荷计算的过载—速度包线,高度—速度包线、载荷计算情况等,在工程应用成熟的《运输类飞机载荷计算程序包》基础上,采用亚音速稳态定常流升力线理论与风洞试验相结合的方法,将机翼简化为悬臂梁进行气动弹性修正,开展副油箱气动力弹性修正计算、惯性力计算、副油箱质量实时更新、包线筛选等功能模块的研究,通过工程应用其计算精度满足要求,形成了满足适航条款的副油箱静载荷计算方法,规范了副油箱静载荷的计算流程,拓展了《运输类飞机载荷计算程序包》的功能。
英文摘要:Taking the wing mounted, auxiliary-fuel-tank for large and medium-sized civil aircraft with subsonic speed and large aspect ratio as the research object, this paper analyzes relevant airworthiness terms of load-calculation in CCAR-25, considers the influence of the movement of external object itself and the elastic deformation of the wing structure on the aerodynamic load of auxiliary-fuel-tank, and gives the overload-velocity envelope, altitude-velocity envelope and load calculation for auxiliary-fuel-tank static-load calculation. On the basis of Transport Aircraft Load-calculation Programe-package, which is widely used in engineering, the wing was simplified as a cantilever beam for aeroelastic correction by the method of subsonic steady-state flow lifting line theory and wind tunnel test. The function module such as aeroelastic correction calculation of auxiliary-fuel-tank, inertial force calculation, real-time update of auxiliary-fuel-tank mass and envelope screening were studied. According to the engineering application, the calculation accuracy meets the requirements, forming the auxiliary-fuel-tank static-load calculation method which meets terms of airworthiness, standardizing the calculation process of the auxiliary tank static load and expanding the functions of Transport Aircraft Load-calculation Programe-package.
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