文档介绍：南京航空航天大学
硕士学位论文
掠海高飞型地效飞行器总体设计与优化研究
姓名:叶新苗
申请学位级别:硕士
专业:飞行器设计
指导教师:刘毅
20090101
南京航空航天大学硕士学位论文
摘要
掠海高飞型地效飞行器采用组合翼布局型式,既能在地效区内高效稳定飞行,又能在高空
长时间飞行,应用范围广,发展前景好。
本文首先介绍了地效飞行器的类型、特点、用途和关键技术,并对其发展历程和前景作了
简单概括。采用基于升力面理论的镜像法计算了简单地效翼和组合地效翼的纵向气动特性。考
虑加装端板、襟翼偏转、外翼上反和带有翼尖小翼的气动性能,分析了布局型式和外形参数对
地效翼气动性能的影响。通过对纵向和横航向静稳定性的深入分析,得到了地效飞行器纵向和
横航向静稳定性判据,建立了地效飞行器静稳定性和总体参数之间的关系。参考飞机和水上飞
机的总体设计方法,进行了地效飞行器气动、飞行性能和静稳定性分析,建立了掠海高飞型地
效飞行器总体参数计算模型和方法,主要包括布局型式选择、重量估算、推重比和翼载荷的选
取、外形参数计算等。研究了掠海高飞型地效飞行器总体参数优化设计,包括设计变量、目标
函数、约束以及工程优化方法选择,给出了优化流程图。
最后通过编程实现了上述算法,并以一架 50 座级掠海高飞型地效飞行器为对象,进行了总
体参数优化,通过对优化前后的飞行性能和静稳定性进行分析和比较,表明了本文所建立的掠
海高飞型地效飞行器总体参数计算模型和优化方法的正确性和有效性。
关键词:地效飞行器,飞行器总体设计,总体参数优化,气动特性,静稳定性,组合翼,掠海
高飞
I
掠海高飞型地效飞行器总体设计与优化研究
Abstract
Sea-skimming and high-flying WIG craft bined wings can fly efficiently and steadily in
and out of ground effect area. WIG craft has a wide usage and good prospect.
The types, features, usage, and key technologies of WIG craft were introduced and the development
history and the prospects of WIG craft were summarized briefly first in the thesis. The longitudinal
aerodynamic characteristics of wings of WIG craft were calculated based on the lifting-surface
solution and the ground effect was simulated with a mirror image wing bined and simple
wings. The effects of layout and geometrical parameters on aerodynamic characteristics of wings with
the endplates, flaps, dihedral and winglets were analyzed. The longitudinal and lateral-directional
static stability criteria of WIG craft were obtained through the systematic investigation. The parameter
estimation models of sea-skimming and high-flying WIG craft, including the configuration layout,
weight, thrust to weight ratio, wing loading, were established with the analysis of aerodynamic
characteristics, flight performance, and static stability based on the approaches used for the
preliminary design of airplanes and seaplanes. The optimization of parameters wa