先进战斗机全动V尾抖振动强度设计与验证

Wei Jin, Zhichun Yang, Dehong Meng, Yan Chen, Hu Huang, Yongjun Wang, Shi He, Yuanfang Chen

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

High Angle of Attack (AoA) maneuverability is the symbolic characteristic of the fourth generation fighter. Our advanced fighter utilizes twin V-tails configuration, and this sort of aerodynamic design is proved to be well controllable at high AoA maneuvering flight. During high AoA maneuvering flight, the strong flow disturbance induced by the burst vortex shedding from fore-body impinge inevitably on the twin V-tails, and will induce severe buffet. The V-tails buffet will cause not only remarkable reduction of flight quality, but also structural fatigue damage, leading to high maintenance cost. This paper describes in detail the key techniques achieved during the engineering manufacturing and design of an aircraft with all-moving twin V-tails, which include: the design technique of rigid/ flexible hybrid model and testing methods of all-moving V-tail buffet wind tunnel test, as well as the principle of similarity transformation method which transforms test data from buffet wind tunnel test to fighter flight condition; the CFD/CSD coupling calculation method based on the RANS/LES hybrid algorithm; active control technique on V-tail buffet response alleviation based on macro fiber composite piezoelectric actuators and Positive Acceleration Feedback (PAF); the V-tail buffet fatigue spectrum generation method and test program. This research has established a set of systematical theoretical analysis techniques, design criteria, and test methods for aircraft V-tail structure buffet dynamic strength design and test of advanced fighters and UAVs.

投稿的翻译标题Strength desigh and test of advanced fighter all-moving twin V-tail buffet
源语言繁体中文
文章编号523473
期刊Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica
41
6
DOI
出版状态已出版 - 25 6月 2020

关键词

  • Buffet
  • Buffet spectrum
  • Dynamic fatigue
  • Macro fiber composite
  • Shedding vortex
  • Wind tunnel test

指纹

探究 '先进战斗机全动V尾抖振动强度设计与验证' 的科研主题。它们共同构成独一无二的指纹。

引用此