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.

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.

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Official URL:	http://www.google.co.uk/patents/US8931729
Item Type:	Patent
Research Area:	Research Areas > Mechanical, aeronautical and manufacturing engineering
Faculty, School or Research Centre:	Faculty of Science, Engineering and Computing (until 2017) > School of Mechanical and Automotive Engineering
Related URLs:	http://www.google.co.uk/patents/US893172...
Date Deposited:	04 Jan 2017 13:51
Last Modified:	20 Jun 2022 16:52
DOI:	US 8,931,729 B2
URI:	https://eprints.kingston.ac.uk/id/eprint/36794

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