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Optimization of a Rotor with Morphing Blades using Particle Swarm Algorithm

Benz, Stephan and Majeti, Rohin Kumar (2019) Optimization of a Rotor with Morphing Blades using Particle Swarm Algorithm. In: DLRK 2019. Deutscher Luft- und Raumfahrtkongress 2019, 30. Sept. - 02. Okt., Darmstadt, Deutschland.

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A particle swarm optimization is used to investigate the optimal morphing parameters for a chord morphing rotor concept, which is developed by the German Aerospace Center (DLR) under the framework of the European project SABRE. Since the morphing parameters can be dependent on the application of the helicopter, three different missions are chosen to be observed. The particle swarm optimization is implemented and set up to solve single and multi-objective problems, defined in three scenarios. Scenario 1 covers only power, whereas scenario 2 adds tip elastic torsion and scenario 3 also includes vibratory hub loads. A two leveled particle swarm algorithm is described, to cover full missions as opposed to single velocities. The effect of missions on the optimal morphing parameters is analyzed and optimal chord morphing parameters are presented per scenario, mission and velocity. The particle swarm optimization is shown to find rotor geometries, that use less power than the baseline rotor, while keeping structural and vibrational strains within limits.

Item URL in elib:https://elib.dlr.de/131716/
Document Type:Conference or Workshop Item (Speech)
Additional Information:SABRE
Title:Optimization of a Rotor with Morphing Blades using Particle Swarm Algorithm
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Benz, StephanTU BraunschweigUNSPECIFIED
Majeti, Rohin KumarRohin.Majeti (at) dlr.dehttps://orcid.org/0000-0003-0634-8051
Date:30 September 2019
Journal or Publication Title:DLRK 2019
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:SABRE, Optimization, Particle Swarm Optimization, Helicopter Rotor, Morphing
Event Title:Deutscher Luft- und Raumfahrtkongress 2019
Event Location:Darmstadt, Deutschland
Event Type:international Conference
Event Dates:30. Sept. - 02. Okt.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Innovative Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Majeti, Rohin Kumar
Deposited On:03 Jan 2020 16:16
Last Modified:18 Aug 2021 14:22

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