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Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft

Pan Zhou, Renliang Chen, Ye Yuan Orcid Logo, Cheng Chi

Aerospace, Volume: 9, Issue: 5, Start page: 262

Swansea University Author: Ye Yuan Orcid Logo

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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...

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Published in: Aerospace
ISSN: 2226-4310
Published: MDPI AG 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa60048
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first_indexed 2022-05-23T21:13:03Z
last_indexed 2022-06-24T03:19:02Z
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spelling 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
format Journal article
container_title Aerospace
container_volume 9
container_issue 5
container_start_page 262
publishDate 2022
institution Swansea University
issn 2226-4310
doi_str_mv 10.3390/aerospace9050262
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str 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
document_store_str 1
active_str 0
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
_version_ 1763754188396822528
score 11.021648

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