客机概念设计中主要参数初估的计算工具

主要总体参数的初估是客机概念阶段的一项重要工作。本文目的是为客机概念设计开发一个总体参数的初估工具。通过文献分析和理论推导,总结出一种初步确定客机主要总体参数的方法。该方法只需输入商载、航程、飞行性能要求,以及较少的预估参数,就可计算出翼载、推重比和重量特性。根据该方法,应用MATLAB编程技术开发了一个具有良好用户界面的计算工具。算例验证表明,由该计算工具确定出的总体主要参数与参考机型基本一致。

A Tool for Initial Sizing in Conceptual Design of Civil Aircraft

Initial sizing is one of the important tasks in conceptual design of civil jets. The aim of this paper is to develop an initial sizing tool for rapid conceptual design of civil jets. Through literature review and theoretical analysis, the initial sizing method of civil jets is presented. The method needs only the simple inputs, including payload, range, flight performance requirements and a few pre-estimated parameters. The wing loading, thrust-toweight ratio and weight properties of the jets can be estimated. Based on the method, a tool with friendly graphical user interface was developed by use of MATLAB programming. The validation cases show that the results determined by the tool are fairly consistent with the reference jets.