Sided performance coaxial vertical take-off and landing UAV and pitch stability technique using oblique active tilting

Abde Qader Alzu'bi, Hamzeh Mahmoud, Abd Allateef, Imad Abd, Zweiri, Yahya, Alkhateeb, Basim and Al-Majali, Yahya Taha Ayed (2015) Abde Qader Alzu'bi; Hamzeh Mahmoud, Allateef; Imad Abd, Zweiri; Yahya, Alkhateeb; Basim, Ayed Al-Majali; Yahya Taha Sided performance coaxial vertical take-off and landing UAV and pitch stability technique using oblique active tilting. US 8,931,729 B2.

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Abstract

A system for increasing the thrust and power capabilities of a side-by-side vertical takeoff and landing vehicle to optimize the coaxial rotor performance. The system includes a first coaxial rotor spaced from an aircraft body and a second coaxial rotor spaced from the aircraft body and opposite the first coaxial rotor. The first coaxial rotor has a first top propeller aligned with a first bottom propeller along a first rotational axis. The second coaxial rotor having a second top propeller aligned with a second bottom propeller along a second rotational axis. A gyroscopic moment to maintain pitch stability is controlled by modulating the first and second top propellers, which have a different angular speed or different torque from the first and second bottom propellers, and tilting the first and second coaxial rotors towards the central axis with a common tilt angle and a common tilt rate.

Item Type: Patent
Research Area: Mechanical, aeronautical and manufacturing engineering
Faculty, School or Research Centre: Faculty of Science, Engineering and Computing > School of Mechanical and Automotive Engineering
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Depositing User: Yahya Zweiri
Date Deposited: 04 Jan 2017 13:51
Last Modified: 04 Jan 2017 13:56
URI: http://eprints.kingston.ac.uk/id/eprint/36794

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