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Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft
Aerospace, Volume: 9, Issue: 5, Start page: 262
Swansea University Author:
Ye Yuan
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DOI (Published version): 10.3390/aerospace9050262
Abstract
The aerodynamic interference between the different components of quad-tiltrotor (QTR) aircraft were considered to analyze its influence on trim characteristics. A comprehensive method with the fixed-wake model was developed for multiple aerodynamic interactions, improving the accuracy of the flight...
Published in: | Aerospace |
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ISSN: | 2226-4310 |
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MDPI AG
2022
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URI: | https://cronfa.swan.ac.uk/Record/cronfa60048 |
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2022-06-23T16:19:00.6452193 v2 60048 2022-05-18 Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft cdadbd9e334ad914d7968a538d9522a4 0000-0002-7568-0130 Ye Yuan Ye Yuan true false 2022-05-18 GENG The aerodynamic interference between the different components of quad-tiltrotor (QTR) aircraft were considered to analyze its influence on trim characteristics. A comprehensive method with the fixed-wake model was developed for multiple aerodynamic interactions, improving the accuracy of the flight dynamics analysis. Additionally, a more general control strategy was developed to tackle the redundant control issue of the QTR, improving its control efficiency by coordinating the authority relationship of various control surfaces across the flight range. Then, the trim features were calculated in the helicopter mode, conversion mode, and airplane mode, and the relevant results with and without interaction were compared. The results show that the aerodynamic interaction mainly influences the body’s vertical force, longitudinal force, and pitching moment. Furthermore, there are significant differences between collective and longitudinal sticks and pitch attitudes. The interference plays a major role in helicopter and conversion modes with a less-than-30-degree tilt angle. Journal Article Aerospace 9 5 262 MDPI AG 2226-4310 quad tiltrotor; aerodynamic interference; flight dynamics model; control strategy; trim characteristics 12 5 2022 2022-05-12 10.3390/aerospace9050262 COLLEGE NANME General Engineering COLLEGE CODE GENG Swansea University Not Required This research received no external funding. 2022-06-23T16:19:00.6452193 2022-05-18T17:13:06.1563041 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - General Engineering Pan Zhou 1 Renliang Chen 2 Ye Yuan 0000-0002-7568-0130 3 Cheng Chi 4 60048__24386__3deaa4db87b149e5b1ed7c02d5ec1650.pdf 60048.pdf 2022-06-23T16:17:23.8621237 Output 7408872 application/pdf Version of Record true © 2022 by the authors. This is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license true eng https://creativecommons.org/licenses/by/4.0/ |
title |
Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft |
spellingShingle |
Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft Ye Yuan |
title_short |
Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft |
title_full |
Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft |
title_fullStr |
Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft |
title_full_unstemmed |
Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft |
title_sort |
Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft |
author_id_str_mv |
cdadbd9e334ad914d7968a538d9522a4 |
author_id_fullname_str_mv |
cdadbd9e334ad914d7968a538d9522a4_***_Ye Yuan |
author |
Ye Yuan |
author2 |
Pan Zhou Renliang Chen Ye Yuan Cheng Chi |
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Journal article |
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Aerospace |
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9 |
container_issue |
5 |
container_start_page |
262 |
publishDate |
2022 |
institution |
Swansea University |
issn |
2226-4310 |
doi_str_mv |
10.3390/aerospace9050262 |
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MDPI AG |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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School of Aerospace, Civil, Electrical, General and Mechanical Engineering - General Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - General Engineering |
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description |
The aerodynamic interference between the different components of quad-tiltrotor (QTR) aircraft were considered to analyze its influence on trim characteristics. A comprehensive method with the fixed-wake model was developed for multiple aerodynamic interactions, improving the accuracy of the flight dynamics analysis. Additionally, a more general control strategy was developed to tackle the redundant control issue of the QTR, improving its control efficiency by coordinating the authority relationship of various control surfaces across the flight range. Then, the trim features were calculated in the helicopter mode, conversion mode, and airplane mode, and the relevant results with and without interaction were compared. The results show that the aerodynamic interaction mainly influences the body’s vertical force, longitudinal force, and pitching moment. Furthermore, there are significant differences between collective and longitudinal sticks and pitch attitudes. The interference plays a major role in helicopter and conversion modes with a less-than-30-degree tilt angle. |
published_date |
2022-05-12T04:17:49Z |
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1763754188396822528 |
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11.021648 |