Towards a Double Hybrid VTOL UAV System

Lucena, Alysson Nascimento de; Gonçalves, Luiz Marcos Garcia

doi:10.1109/lars/sbr/wre51543.2020.9307065

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Besides been tested in a controlled field, more extensive field tests for verifying flight endurance and the correctly working of autonomous flight model could not be performed due to pandemics time. Nonetheless, stability on taking off and landing close to the ground has been improved in relation to our previous work [25]. To date, technological aspects have been enhanced, with more powerful powertrain assemblies to expand the capacity of the embedded electronics and payload.…”

Section: Introductionmentioning

confidence: 75%

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Double Hybrid Tailsitter Unmanned Aerial Vehicle With Vertical Takeoff and Landing

2022

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We propose a new concept and architectural design for a double hybrid tailsitter unmanned aerial vehicle with vertical takeoff and landing capability. Basically, it consists of a modified flying wing with a single combustion powertrain set and a multirotor with 2 powertrain sets with electric motors. To this end, we have designed, built, and tested a prototype that spends less energy on vertical taking off and landing and also on horizontal flight, for maximizing flight endurance and distance. With electric propellers fixed at the leading wing edge, the tailsitter has two standard surfaces for elevation control and two vertical stabilizers that are used to give the necessary direction on vertical takeoff and landing. Experiments and results show the versatility of our hybrid tailsitter for operations in a restricted field. We performed several tests starting with the aircraft on the ground in vertical positioning. These tests include executing vertical takeoffs and landing, transitions from vertical to horizontal flight modes and transitions back from horizontal to vertical flight modes, and hovering, which were carried out successfully. Transition fourth and back from combustion to multirotor modes are inherent to some of those flight mode transitions, which have been performed smoothly. We also performed tests (in bench) to estimate the flight endurance. Final autonomous flight adjustments were not performed due to the Covid-19 pandemic caused by SARS-CoV-2. To this end the proposed and currently built prototype has proven to be functional as an effective hybrid UAV system.

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Section: Introductionmentioning

confidence: 75%

“…A first draft of the double hybrid tailsitter has been submitted as a patent [23], and some initial details on the design and construction have been presented in our previous conference paper [25]. The work presented here is therefore a further enhancement of these previous versions in all aspects.…”

Section: Introductionmentioning

confidence: 99%

Double Hybrid Tailsitter Unmanned Aerial Vehicle With Vertical Takeoff and Landing

2022

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Micro aerial vehicle with basic risk of operation

Lucena

Silva

Gonçalves

2022

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We draw current efforts towards proposing a wing-type micro UAV with characteristics of being a basic operation risk self handled (Micro-Brosh) platform. Its micro-sized wingspan and weight, which are less than 0.30 m and 0.150 kg, respectively, guarantee the low risk to the operator and installations in case of crashing. It can be launched manually without using an appropriate runway, besides using a soft grass field for landing is recommended. Its associated costs for construction and maintenance are very low (below US$ 500) if compared to traditional aircraft. The main contribution here is the architectural design, besides we provide detailed documentation including techniques for determining lift, thrust, drag, minimum flight velocity, maximum time of flight and distance (autonomy), and other issues that we have solved related to the aircraft development. We validate our prototype with experiments including several tests done with the UAV with results that have proven its flight ability. To the end, we understand that this work provides a nice starting document to researchers that intend to develop a UAV or enter this field.

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Towards a Double Hybrid VTOL UAV System

Cited by 2 publications

References 18 publications

Double Hybrid Tailsitter Unmanned Aerial Vehicle With Vertical Takeoff and Landing

Double Hybrid Tailsitter Unmanned Aerial Vehicle With Vertical Takeoff and Landing

Micro aerial vehicle with basic risk of operation

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