摘要
在飞机的总体方案概念设计阶段,需要对飞机机翼进行气动弹性设计,以避免在后期设计中,因气动弹性问题而对设计方案进行较大更改。以某支线飞机的总体方案论证为背景,研究并归纳该飞机概念设计阶段气动弹性设计与分析的理论基础和计算方法,建立机翼的梁架式模型,初步设计模型刚度与质量分布,并进行机翼的静气动弹性响应与载荷分析、振动特性及颤振特性分析。结果表明:该支线飞机机翼的气动弹性特性合理,符合设计要求。
Preventing from considerable modifications for design afterwards, aeroelastic design of wing should be considered in conceptual design of airplanes. With the background of conceptual design for a regional jet, theo- retical bases and calculation methods of aeroelastic design in aircraft conceptual design are summarized, and a beam-frame model of wing is developed. Based on the model, the stiffness and mass distribution is designed. Then an analysis of static aeroelastic responses, flight loads, vibration characteristics, and flutter characteristics is carried out. The results indicate that the aeroelastic design of the regional jet is well satisfied with the requirements.
出处
《航空工程进展》
CSCD
2016年第3期349-354,共6页
Advances in Aeronautical Science and Engineering
关键词
支线飞机
总体方案设计
气动弹性
静气动弹性
飞行载荷
固有振动特性
颤振
regional jet
conceptual design
aeroelasticity
static aeroelasticity
flight loads
natural vibrationcharacteristics
flutter
