Analysis of the influence of transition state control strategy on structural load of quad-tiltrotor

There are complex structural load changes in the rotor during the tilt-transition of quad-tiltrotor aircraft,which can directly affect the life of the rotor. The control strategy analysis is beneficial to reveal the influence law of the rotor structural load, which can provide a conclusion basis for...

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Bibliographic Details
Published inHangkong Gongcheng Jinzhan Vol. 16; no. 3; pp. 189 - 197
Main Authors HE Yongtao, ZHANG Xiayang, WANG Xin, ZHENG Lixiong
Format Journal Article
LanguageChinese
Published Editorial Department of Advances in Aeronautical Science and Engineering 01.06.2025
Subjects
control strategy
quad-tiltrotor
trim characteristic
vibration response
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Summary:There are complex structural load changes in the rotor during the tilt-transition of quad-tiltrotor aircraft,which can directly affect the life of the rotor. The control strategy analysis is beneficial to reveal the influence law of the rotor structural load, which can provide a conclusion basis for the future research on vibration suppression. In order to study the influence of tilt-transition control strategy on rotor dynamic characteristics, a comprehensive flight dynamics model of tiltrotor is established, two typical control strategies of tiltrotor transition state are designed,and the trim characteristics and aerodynamic load characteristics of the fixed tilt angle state are studied through numerical simulation, as well as the influence of the transition state control strategy on the dynamic characteristics of the rotor. By considering the influence of aerodynamics on structure, the aerodynamic loads are treated as external forces applied to the blade surface, and the blade dynamics equation is solved u
ISSN:1674-8190
DOI:10.16615/j.cnki.1674-8190.2025.03.20