The use of augmented rotor inflow to predict rotorcraft responses in hover and low-speed manoeuvres
The use of augmented rotor inflow to predict rotorcraft responses in hover and low-speed manoeuvres
复制标题
使用增强旋翼流入来预测旋翼机在悬停和低速机动中的响应
DOI:
10.1017/aer.2021.123
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Agarwal D
中科院分区:
文献类型:
--
作者:
Agarwal D
The rotorcraft is a complex dynamical system that demands specialist modelling skills, and a high level of understanding of the aeromechanics arising from the main rotor wake and aerodynamic couplings. One such example is the difficulty predicting off-axis responses, particularly in hover and low-speed flight, associated with induced velocity variation through the rotor disk resulting from the rotor wake distortions. Various approaches have been developed to deal with this phenomenon but usually demand prerequisites of high levels of expertise and profound aerodynamic knowledge. This paper presents a new and practical approach to capturing this wake distortion through an augmented rotor inflow model. The proposed model is coupled with a nonlinear simulation using the FLIGHTLAB environment, and comparisons are made between the simulation results and flight test data from the National Research Council of Canada’s Advanced System Research Aircraft in hover and low speed. Results show good predictability of the proposed nonlinear model structure, demonstrated by its capability to closely match the time responses to multi-step control inputs from flight test. The results reported are part of ongoing research at Liverpool and Cranfield University into rotorcraft simulation fidelity.
登录
查看更多内容
DOI:
10.1017/s0001924000006102
发表时间:
2011
期刊:
The Aeronautical Journal (1968)
影响因子:
--
作者:
L. Lu;G. Padfield;M. White;P. Perfect
通讯作者:
P. Perfect
影响因子:
1.5
作者:
J. Leishman;A. Bagai
通讯作者:
A. Bagai
影响因子:
1.5
作者:
Chen;Hsuan;Brentner;S. Kenneth;Ananthan;Shreyas;Leishman;J. Gordon
通讯作者:
J. Gordon
影响因子:
1.5
作者:
Ying Y. Dang;S. Subramanian;G. Gaonkar
通讯作者:
G. Gaonkar
DOI:
10.1017/aer.2018.12
发表时间:
2018
期刊:
The Aeronautical Journal
影响因子:
--
作者:
R. W. D. Val;Chengjian He
通讯作者:
Chengjian He