In:
ANZIAM Journal, Australian Mathematical Publishing Association, Inc., Vol. 62 ( 2022-03-19), p. M42-M72
Abstract:
Innovative design of helicopters promises great benefitsover conventional aircraft but there are a number oftechnical challenges. Hyper Q Aerospace brought a project tothe 2020 Mathematics-in-Industry Study Group to consider ahelicopter design with a counter-rotating, coaxial, doublerotor. Specific considerations were the vibration andharmonic properties of the rotor blades, the noise from theaircraft and the aerodynamic characteristics.Euler--Bernoulli beam theory and classical airfoil theorywere implemented to consider the vibration and aerodynamicfeatures of the aircraft and the rotor system. Thefundamental lengthwise and lateral harmonics of the bladeswere obtained and compared with typical rotational forcingfrequencies. The modification to the lift generated by thecounter-rotating blades and noise mitigation strategies werediscussed. Improved design strategies were presented.
Type of Medium:
Online Resource
ISSN:
1445-8810
DOI:
10.21914/anziamj.v62.15964
Language:
Unknown
Publisher:
Australian Mathematical Publishing Association, Inc.
Publication Date:
2022
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