EVALUATION OF WING STRUCTURES AT THE CONCEPTUAL STAGE OF TRANSPORT CATEGORY AIRCRAFT PROJECTS

IF 0.8 Q3 ENGINEERING, AEROSPACE Aviation Pub Date : 2022-12-09 DOI:10.3846/aviation.2022.18041
A. Kretov, D. Tiniakov
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引用次数: 1

Abstract

The purpose of this research is to improve the approach for evaluating of new design solutions based on sensitivity analysis of takeoff mass (SFM) to initial changes in the basic project. The approach is based on the changes assessment in maximum takeoff mass of a developed project or an already existed basic variant of an aircraft with local design (project) changes, including the aerodynamic ones, that ensure the developing of a more advanced aircraft. In comparison with the existed known approaches based on the mass growth factors, which were considered constant, the proposed approach takes into account more exactly the dependence of the takeoff mass on the initial local change in mass in terms of their functional purpose, as well as the aerodynamic characteristics. This approach allows the designer to calculate more precisely the final maximum takeoff mass changes in the early (preliminary) stages of conceptual design when looking for new design solutions. On numerical examples, carried out on the examples of transport category airplanes, a significant dependence of the wing aspect ratio influence on fuel efficiency is shown. The considered approach using SFM with semi-analytical aerodynamic analysis combination is simple, reliable and convenient in the analysis and synthesis of a new project for the design process based on the base variant.
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运输机项目概念阶段机翼结构的评估
本研究的目的是改进基于起飞质量(SFM)对基础项目初始变化的敏感性分析的新设计解决方案的评估方法。该方法基于已开发项目或已存在的飞机基本变体的最大起飞质量变化评估,局部设计(项目)变化包括空气动力学变化,以确保开发更先进的飞机。与现有的基于质量增长因子的已知方法相比,该方法被认为是常数,所提出的方法更准确地考虑了起飞质量对质量初始局部变化的依赖性,即其功能目的以及空气动力学特性。这种方法允许设计者在寻找新的设计解决方案时,在概念设计的早期(初步)阶段更精确地计算最终的最大起飞质量变化。在运输类飞机的数值例子中,机翼展弦比对燃油效率的影响显著相关。在基于基本变体的设计过程的新项目的分析和综合中,使用SFM和半解析气动分析组合的所考虑的方法是简单、可靠和方便的。
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来源期刊
Aviation
Aviation ENGINEERING, AEROSPACE-
CiteScore
2.40
自引率
10.00%
发文量
20
审稿时长
15 weeks
期刊介绍: CONCERNING THE FOLLOWING FIELDS OF RESEARCH: ▪ Flight Physics ▪ Air Traffic Management ▪ Aerostructures ▪ Airports ▪ Propulsion ▪ Human Factors ▪ Aircraft Avionics, Systems and Equipment ▪ Air Transport Technologies and Development ▪ Flight Mechanics ▪ History of Aviation ▪ Integrated Design and Validation (method and tools) Besides, it publishes: short reports and notes, reviews, reports about conferences and workshops
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