elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Investigating the Coupling of Helicopter Aerodynamics with SIMPACK for Articulated and Hingeless Rotors

Mindt, Maximilian and Surrey, Stefan (2016) Investigating the Coupling of Helicopter Aerodynamics with SIMPACK for Articulated and Hingeless Rotors. In: DLRK 2016. DLRK 2016, 13.-15. Sep. 2016, Braunschweig, Deutschland.

This is the latest version of this item.

[img] PDF
522kB

Abstract

In this paper the results of a tight coupling of rotor aerodynamics with a rotor model built up in the multibody software SIMPACK are presented. The aerodynamics are calculated by S4, which is a simulation tool developed at the Institute of Flight Systems of the German Aerospace Center. In a first step, the coupling approach was verified via cross code comparison for simple load cases such as hover flight for a hingeless blade with a straight elastic axis. The conclusions drawn for the verification methodology will be pointed out in the beginning of this paper. Investigations of a four bladed rotor in trimmed forward flight condition were conducted, leading to the discovery of a drawback in the representation of flexible beam-like structures in SIMPACK for helicopter applications. Additionally, a model of the articulated 7A rotor has been created. With this rotor a high speed flight condition test case was performed in the S1 wind tunnel and the results of the simulations are compared to the test results. In an attempt to eliminate the modeling deficiencies of the one-dimensional beam, a three-dimensional finite element model of the 7A rotor blade has been built at the Institute of Aeroelasticity as well. A comparison of the eigenmodes and eigenfrequencies of the one- and three-dimensional model will be shown.

Item URL in elib:https://elib.dlr.de/106605/
Document Type:Conference or Workshop Item (Speech)
Title:Investigating the Coupling of Helicopter Aerodynamics with SIMPACK for Articulated and Hingeless Rotors
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Mindt, Maximilianmaximilian.mindt (at) dlr.deUNSPECIFIED
Surrey, StefanStefan.Surrey (at) dlr.deUNSPECIFIED
Date:13 September 2016
Journal or Publication Title:DLRK 2016
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Hubschrauber, Rotordynamik
Event Title:DLRK 2016
Event Location:Braunschweig, Deutschland
Event Type:national Conference
Event Dates:13.-15. Sep. 2016
Organizer:DGLR
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 Virtual Aerodynamic Rotorcraft
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Institute of Aeroelasticity > Aeroelastic Simulations
Deposited By: Mindt, Maximilian
Deposited On:18 Oct 2016 14:39
Last Modified:31 Jul 2019 20:04

Available Versions of this Item

  • Investigating the Coupling of Helicopter Aerodynamics with SIMPACK for Articulated and Hingeless Rotors. (deposited 18 Oct 2016 14:39) [Currently Displayed]

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.