大型民用飞机概念方案气动弹性综合分析方法研究  

Investigation into Aeroelastic Analysis Method in Concept Design of Large Civil Aircraft

作　　者：张新榃 张帅 王建礼 石伟峰 Zhang Xintan;Zhang Shuai;Wang Jianli;Shi Weifeng(COMAC Beijing Aeronautical Science ＆ Techndogy Research Institute,Beijing 102209,China)

机构地区：[1]中国商飞北京民用飞机技术研究中心,北京102209

出　　处：《航空科学技术》2018年第10期16-20,共5页Aeronautical Science & Technology

摘　　要：现代大型民用飞机在概念设计阶段需要对机体弹性的影响进行充分考虑。本文利用气动和结构各自学科的工程方法对大型民用飞机概念方案进行气动弹性建模与计算,利用全速势方法进行初步气动载荷分析,利用亚声速偶极子格网法进行非定常气动力的计算,利用梁架模型和刚度缩比方法对结构进行初步建模,利用统计方法计算得到各结构部件的分类重量并在结构模型中完成质量分配,形成可用于概念方案阶段静气弹载荷分析、颤振分析的气动弹性模型,并以大型民用飞机为算例进行分析研究,得到结构弹性对于全机气动特性、变形以及颤振特性的影响。Influence of elasticity should be concerned during the concept design of the modern large civil airplanes. Aeroelastic modeling and analysis were based on engineering methods in aerodynamics and structural dynamics. Aero load was calculated using full potential codes, unsteady aero load was calculated using subsonic double-lattice methods, beam method was adopted for establishing structural model in which stiffness characteristics were obtained by analogy techniques, statistical methods were adopted during mass distribution prediction, all of the above methods construct the aeroelastic model during concept design for elastic aero load calculation and flutter analysis. A large civil aircraft was analyzed by these methods, the influence of structural elasticity on aerodynamic loads and flutter characteristics was researched.

关 键 词：大型民用飞机 飞机概念设计 气动弹性建模 静气弹 颤振 

分 类 号：V215.3[航空宇航科学与技术—航空宇航推进理论与工程]