Design and assessment of octocopter drones with improved aerodynamic efficiency and performance

Zhu, He; Nie, Hong; Zhang, Limao; Wei, Xiaohui; Zhang, Ming

doi:10.1016/j.ast.2020.106206

Cited by 47 publications

(24 citation statements)

References 22 publications

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“…Advanced technologies in robotics, electronics, artificial intelligence, and controls are widely used to expand the capabilities of UAVs, and this bright the need of integrating information and adopting integrated design methodologies to deal with design complexity. Zhu et al [168] integrated computational fluid dynamics (CFD) to analyze aerodynamic behaviors of different system configurations for the maximization of thrust of an octocopter drone in low-speed subsonic operating conditions; main considered factors include rotor blade geometries, avoidance of interferences, and wind conditions.…”

Section: ) Robots For Space Operationsmentioning

confidence: 99%

The State of the Art of Information Integration in Space Applications

Yung

et al. 2022

IEEE Access

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This paper aims to present a comprehensive survey on information integration (II) in space informatics. With an ever-increasing scale and dynamics of complex space systems, II has become essential in dealing with the complexity, changes, dynamics, and uncertainties of space systems. The applications of space II (SII) require addressing some distinctive functional requirements (FRs) of heterogeneity, networking, communication, security, latency, and resilience; while limited works are available to examine recent advances of SII thoroughly. This survey helps to gain the understanding of the state of the art of SII in sense that (1) technical drivers for SII are discussed and classified; (2) existing works in space system development are analyzed in terms of their contributions to space economy, divisions, activities, and missions; (3) enabling space information technologies are explored at aspects of sensing, communication, networking, data analysis, and system integration; (4) the importance of first-time right (FTR) for implementation of a space system is emphasized, the limitations of digital twin (DT-I) as technological enablers are discussed, and a concept digital-triad (DT-II) is introduced as an information platform to overcome these limitations with a list of fundamental design principles; (5) the research challenges and opportunities are discussed to promote SII and advance space informatics in future.INDEX TERMS Information integration (II), space informatics, digital triad (DT-II), internet of digital-triad things (IoDTT), first-time right (FTR), space information integration (SII). FIGURE 2. Technical drivers of II applications.

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Section: ) Robots For Space Operationsmentioning

confidence: 99%

The State of the Art of Information Integration in Space Applications

Yung

et al. 2022

IEEE Access

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“…However, the incorporation of arrays of sensors and embedded devices in Unmanned aerial vehicles (UAVs) is limited by the power consumption of all devices and vehicle dimensions. An emerging area of mechatronic design is applying artificial intelligence techniques to optimize the design of UAVs, considering both aspects [4]. Visual perception allows knowing the features of the environment [5], [6], while spatial context adds intelligence to autonomous systems to interpret the environment in order to develop a path planning solution [7].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Depth and Semantic Mask for Perceiving a Physical Environment Using Virtual Samples Generated by a GAN

Maldonado-Romo¹,

Aldape-Pérez²,

Rodríguez-Molina

2022

IEEE Access

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Micro aerial vehicles (MAVs) can make explorations in 3D environments using technologies capable of perceiving the environment to map and estimate the location of objects that could cause collisions, such as Simultaneous Localization and Mapping (SLAM). Nevertheless, the agent needs to move during the environment mapping, reducing the flying time to employ additional activities. It has to be noted that adding more devices (sensors) to MAVs implies more power consumption. Since more energy to perform tasks is required, growing the dimensions of MAVs limits the flying time. Contrarily, Generative Adversarial Networks (GAN) have demonstrated the usefulness of creating images from one domain to another, but the GAN domain changes require a large number of samples. Therefore, an interoperability coefficient is employed to determine a minimum number of samples to connect the different domains. In order to prove the coefficient, the performance to estimate the depth and semantic mask between authentic and virtual samples with the number limited of samples is analyzed. Consequently, an RGB-D sensor can be replaced by a few samples of a real scenario based on GANs. Although GAN allows creating images with depth and semantic mask information, there is an additional problem to be tackled: the presence of intrinsic noise, where a simple GAN architecture is not enough. In this proposal, the performance of this solution against a physical RGB-D sensor (Microsoft Kinect V1) and other state-of-the-art approaches is compared. Experimental results allow us to affirm that this proposal is a viable option to replace a physical RGB-D sensor with limited information.

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“…A new type of double-layer octocopter with better aerodynamic performance was proposed in certain plane space. In the previous study of these authors, its significant improvement have been assessed and verified in aerodynamic performance [7], and its topological configuration parameters were optimized [8]. However, the purpose of engineering research is to realize the results in practice.…”

Section: Introductionmentioning

confidence: 99%

Design and experimental testing of safe flight control system for novel vertical take-off and landing aircraft

Nie¹,

Zhu²,

Wei³

et al. 2022

J. vibroeng.

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This paper describes the design and flight test of the control system of a novel octocopter with new topology to improve aerodynamic performance and efficiency. The article analyzes the advantages of the new configuration and analyzes the feasibility of the control method which can ensure fault-tolerant control when one rotor of the aircraft stops in theory. The feasibility verification is carried out through a prototype flight test. The power and hardware platform of the octocopter UAV was set up according to the requirements of structural and control system design. Flight tests were carried out multiple times, and the UAV's redundant actuation was able to successfully stabilize the vehicle, even after a single rotor stopped functioning. Under normal flight conditions, smooth flight and effective control could be ensured for the UAV, while under the condition of a single rotor having stopped functioning, the control method was able to effectively utilize the other seven rotors to provide a proper lift force and to control the aircraft to perform basic motions such as pitch, roll, and yaw.

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Design and assessment of octocopter drones with improved aerodynamic efficiency and performance

Cited by 47 publications

References 22 publications

The State of the Art of Information Integration in Space Applications

The State of the Art of Information Integration in Space Applications

Analysis of Depth and Semantic Mask for Perceiving a Physical Environment Using Virtual Samples Generated by a GAN

Design and experimental testing of safe flight control system for novel vertical take-off and landing aircraft

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