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Aerodynamic Uncertainty Quantification for Tiltrotor Aircraft [PDF]
Aerospace, 2022 The tiltrotor has unique flight dynamics due to the aerodynamic interference characteristics. Multiple aerodynamics calculation approaches, such as the CFD method, are utilised to characterise this feature.
Ye Yuan, Douglas Thomson, David Anderson
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Neural Network Adaptive Attitude Control of Full-States Quad Tiltrotor UAV
AerospaceThe control stability and accuracy of quad tiltrotor UAVs is improved when encountering external disturbances during automatic flight by an active disturbance rejection control (ADRC) parameter self-tuning control strategy based on a radial basis ...
Jiong He +5 more
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MachinesTo address the critical challenge of controlling tiltrotor aircraft during transition mode, this paper proposes a fractional-order model reference adaptive control (FO-MRAC) method based on the unique modeling of the tiltrotor aircraft. A nonlinear model
Junkai Liang +3 more
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Dynamic thrust of the propeller in oblique flows in continuous conversion mode of tiltrotor
Advances in AerodynamicsTiltrotor exhibits a conversion mode with strong nonlinear aerodynamic characteristics. The thrust characteristics of propellers are one of the crucial factors determining the performance of tiltrotor with electric propulsion systems in the conversion ...
Mengtian Wang, Tai Jin, Yao Zheng
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A Novel Aerodynamic Modeling Method Based on Data for Tiltrotor evtol
Applied SciencesA data-driven aerodynamic modeling method is proposed to address the problem that traditional modeling methods based on physical mechanisms cannot fully represent the special aerodynamic characteristics of tiltrotor evtol aircraft.
Haiyang Wang, Peng Li, Dongsu Wu
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Multi-Fidelity Aerodynamic Optimization of the Wing Extension of a Tiltrotor Aircraft
Applied SciencesGiven the fast-evolving context of electrical vertical takeoff and landing vehicles (eVTOL) based on the concept of tiltrotor aircraft, this work describes a framework aimed at the preliminary aerodynamic design and optimization of innovative lifting ...
Alberto Savino
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AerospaceTiltrotor aircraft, due to their vertical takeoff and landing capability and efficient high-speed cruise performance, are increasingly valuable in both modern military and civilian applications.
Hang Feng +3 more
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AerospaceTiltrotors permit aircrafts to operate vertically with lift, yet convert to ordinary forward flight with thrust. The challenge is to design a tiltrotor blade yielding maximum lift and thrust that converts smoothly without losing integrity or efficiency ...
Zhiyuan Hu +5 more
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Applied SciencesIn recent years, there has been a significant amount of research on tiltrotor multicopter unmanned aerial vehicles (TM-UAVs) in aerial robotics. Despite the varying frame types of TM-UAVs, they all still aim to decouple the propeller from the body, which
Xiaodi Tao, Seong Young Ko
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Tiltrotor CFD Part II - aerodynamic optimisation of tiltrotor blades [PDF]
The Aeronautical Journal, 2017 ABSTRACTThis paper presents aerodynamic optimisation of tiltrotor blades with high-fidelity computational fluid dynamics. The employed optimisation framework is based on a quasi-Newton method, and the required high-fidelity flow gradients were computed using a discrete adjoint solver.
Jimenez Garcia, A. +5 more
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