双体层流验证机横航向模态特性改善方法研究  

Research on Method of Improving Lateral Modal Characteristics of Dual-Fuselage Laminar Flow Verification Aircraft

作　　者：黄振威 武虎子 齐万涛 申晓明 HUANG Zhen-wei;WU Hu-zi;QI Wan-tao;SHEN Xiao-ming(AVIC the First Aircraft Institute,Xi'an Shaanxi 710089,China)

机构地区：[1]航空工业第一飞机设计研究院,陕西西安710089

出　　处：《计算机仿真》2024年第10期27-31,共5页Computer Simulation

摘　　要：双体层流验证机采用双机身、π尾的气动布局形式,内翼段为层流验证段,其特殊的布局形式导致横航向气动特性和质量特性与常规布局飞机存在明显差异,进而横航向模态特性与常规布局飞机具有不同的特点。为使双体层流验证机横航向模态特性具有良好的飞行品质,通过研究横航向模态特性关键参数对双体飞机模态特性的影响,给出了改善双体飞机横航向模态特性的一般规律,综合得到了参数配置方法,通过对优化后的方案进行理论计算和分析,验证了参数配置方法的有效性。研究获得了双体飞机横航向模态特性受关键参数影响的一般规律和参数配置方法,为上述类型的飞机快速优化总体布局设计提供重要的参考。For the special aerodynamic layout of the dual-fuselage laminar flow verification aircraft,this paper analyzes how to improve the lateral modal characteristics by studying the parameters.The aerodynamic layout of the laminar flow demonstrator adopts a dual-fuselage,π-tail design,and the inner wing section is the laminar flow demonstrator section.The special layout leads to obvious differences in the lateral aerodynamic and mass characteristics and the lateral modal characteristics from the conventional layout aircraft.In order to optimize the overall layout and design a vehicle with good lateral modal characteristics effectively and quickly,this paper studies six variables closely related to the lateral modal characteristics,obtains the change law of lateral modal characteristics with each variable,and integrates to get a more ideal parameter configuration,which can meet the design requirements by theoretical calculation and analysis.Through the research of this paper,the general law of the variation of the transverse heading modal characteristics with parameters of this type of aircraft can be obtained,which provides an important design reference for the design of aircraft of this type of layout.

关 键 词：层流验证机 双机身 横航向模态 操稳特性 飞行品质 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程]