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Applied Sciences
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Bionic Unmanned Aircraft Systems
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Bionic Unmanned Aircraft Systems

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Aerospace Science and Engineering".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 5543

Special Issue Editors

Prof. Dr. Bifeng Song

E-Mail Website
Guest Editor
School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China
Interests: Flapping Micro Aerial Vehicle (FMAV); high survivability technology and reliability; maintainability and protective engineering; system/structure/mechanism reliability and maintainability; near-space vehicle technology
Dr. Dong Xue

E-Mail Website
Guest Editor
School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
Interests: Flapping Micro Aerial Vehicle (FMAV); flight mechanism of birds; design method of bionic micro aerial vehicle
Dr. Xiaojun Yang

E-Mail Website
Guest Editor
School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
Interests: Flapping Micro Aerial Vehicle (FMAV); direct driven system; mechatronics

Special Issue Information

Dear Colleagues,

Bionic Unmanned Aerial Systems (BUASs) have the potential to develop into useful tools to assist humans accomplish various aims, such as monitoring, surveillance, search, rescue, and, especially, covert reconnaissance via bionic appearance. In recent years, the improvement of Computational Fluid Dynamics (CFD) technology, micro-electromechanical technology, SoC (System-on-a-Chip) technology and batteries have greatly promoted the development of bionic aircrafts, making the applicational capability of bionic aircrafts more and more practical. Nevertheless, some challenges and open issues remain to ensure the full operational use of BUASs.

This Special Issue aims to present recent advances in technologies and algorithms to improve the levels of efficiency, autonomy, reliability, and safety of BUASs. Topics of interest include but are not limited to: aerodynamic computation and analysis of BUASs; design of biomimetic mechanism and actuators; advanced guidance, navigation, and control algorithms; networked swarms; new vehicle concepts and designs; new applications and field experiments.

Prof. Dr. Bifeng Song
Dr. Dong Xue
Dr. Xiaojun Yang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Bionic Unmanned Aerial Systems (BUASs)
  • bionic aerodynamic
  • biomimetic mechanism, biomimetic actuators, biomimetic sensors
  • flight control and navigation of BUASs
  • applications of BUASs

Published Papers (2 papers)

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Research

15 pages, 5821 KiB  
Article
Effect of Wing Membrane Material on the Aerodynamic Performance of Flexible Flapping Wing
by Xinyu Lang, Bifeng Song, Wenqing Yang and Xiaojun Yang
Appl. Sci. 2022, 12(9), 4501; https://doi.org/10.3390/app12094501 - 29 Apr 2022
Cited by 4 | Viewed by 1889
Abstract
Flexible deformation of the insect wing has been proven to be beneficial to lift generation and power consumption. There is great potential for shared research between natural insects and bio-inspired Flapping wing Micro Aerial Vehicles (FWMAVs) for performance enhancement. However, the aerodynamic characteristics [...] Read more.
Flexible deformation of the insect wing has been proven to be beneficial to lift generation and power consumption. There is great potential for shared research between natural insects and bio-inspired Flapping wing Micro Aerial Vehicles (FWMAVs) for performance enhancement. However, the aerodynamic characteristics and deformation process of the flexible flapping wing, especially influenced by wing membrane material, are still lacking in-depth understanding. In this study, the flexible flapping wings with different membrane materials have been experimentally investigated. Power input and lift force were measured to evaluate the influence of membrane material. The rotation angles at different wing sections were extracted to analyze the deformation process. It was found that wings with higher elastic modulus membrane could generate more lift but at the cost of more power. A lower elastic modulus means the wing is more flexible and shows an advantage in power loading. Twisting deformation is more obvious for the wing with higher flexibility. Additionally, flexibility is also beneficial to attenuate the rotation angle fluctuation, which in turn enhances the aerodynamic efficiency. The research in this paper is helpful to further understand the aerodynamic characteristics of flexible flapping wing and to design bio-inspired FWMAVs with higher performance. Full article
(This article belongs to the Special Issue Bionic Unmanned Aircraft Systems)
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16 pages, 3526 KiB  
Article
Power Modeling and Experiment Study of Large Flapping-Wing Flying Robot during Forward Flight
by Siping Zhong and Wenfu Xu
Appl. Sci. 2022, 12(6), 3176; https://doi.org/10.3390/app12063176 - 21 Mar 2022
Cited by 3 | Viewed by 2303
Abstract
A power estimation approach for calculating the power of a flapping-wing air vehicle (FWAV) in forward flight is proposed in this paper. One of the challenges and essential points of FWAVs is endurance. In order to optimize FWAVs, it is necessary to analyze [...] Read more.
A power estimation approach for calculating the power of a flapping-wing air vehicle (FWAV) in forward flight is proposed in this paper. One of the challenges and essential points of FWAVs is endurance. In order to optimize FWAVs, it is necessary to analyze power required for flight in addition to kinematic and aerodynamic analyses of the prototype. Previously, calculating the power of birds was limited to calculating their average power, which assumed the lift was usually the same as the gravitational force. However, the lift varies with the flapping angle during flight. As a result, the power required for forward flight of FWAVs is determined in this work by using a kinematic model of the drive element and wing flapping, along with the aerodynamic model, which varies with the flapping angle during the flapping cycle. Experiments were performed with two prototypes with wingspans of 1.6 and 1.8 m, utilizing a wind tunnel platform. The correlations between power and angle of attack, flapping frequency, and incoming flow velocity were discovered, and recommendations for FWAVs and flying mode design were provided. However, several challenges are highlighted in the application of the model to practical design efforts. Full article
(This article belongs to the Special Issue Bionic Unmanned Aircraft Systems)
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