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Aeroelastic Analysis of Double-Swept Rotor Blade in Hovering Conditions

Kumar, M. R. and Rao, L. V. (2017) Aeroelastic Analysis of Double-Swept Rotor Blade in Hovering Conditions. ISBN 978-88-97576-28-0.

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Official URL: http://www.ifasd2017.com

Abstract

The double-sweep is a relatively new advanced blade shape employed in the rotorcraft industry, mainly, to alleviate rotor noise. The aeroelastic effects of this advanced shape have been relatively less discussed in the open literature. The current work involves a study concerning the effects of a double-sweep, along with a tip-anhedral, on the aeroelastic loads and structural dynamics of a rotor blade. For carrying out this analysis, a comprehensive simulation tool employing the Peters-He dynamic wake model and the ONERA dynamic stall model for air loads is used. It is shown that the double-sweep geometry causes large lag shear forces, lag as well as torsional moments at the blade root and at the double-sweep junction.

Item URL in elib:https://elib.dlr.de/113130/
Document Type:Proceedings
Title:Aeroelastic Analysis of Double-Swept Rotor Blade in Hovering Conditions
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kumar, M. R.rohin.majeti (at) dlr.dehttps://orcid.org/0000-0003-0634-8051
Rao, L. V.dyna.rwrdc (at) hal-india.comUNSPECIFIED
Date:June 2017
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
ISBN:978-88-97576-28-0
Status:Published
Keywords:Double-sweep, rotary-wing aeroelasticity, structural dynamics
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Majeti, Rohin Kumar
Deposited On:12 Jul 2017 13:55
Last Modified:31 Jul 2019 20:10

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