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

In-flight evaluation of active sidestick parameters with respect to handling qualities for rate command and attitude command response types

von Grünhagen, Wolfgang and Müllhäuser, Mario and Höfinger, Marc and Lusardi, Jeff A. (2014) In-flight evaluation of active sidestick parameters with respect to handling qualities for rate command and attitude command response types. AHS Rotorcraft Handling Qualities Specialists' Meeting, 20.-22.02.2014, Huntsville, AL.

Full text not available from this repository.

Abstract

Previous evaluations performed during a cooperative research effort of the DLR Institute of Flight Systems in Germany and the U.S. Army Aeroflightdynamics Directorate (AFDD) showed a significant influence of the dynamic characteristics of active sidesticks on handling qualities of fly-by-wire helicopters and indicated a trend of optimal natural frequency and damping values leading to a first order response model. However this trend could not be validated due to restrictions of the used hardware. An upgrade of the firmware by the manufacturer to expand the allowable configuration envelope now enabled to configure the dynamic characteristics in a significantly enlarged parameter space, so that the response can be considered as a first order system with a time delay. A first flight test campaign at Braunschweig airport with the upgraded stick and with an Attitude Command configuration confirmed the trend to higher frequency and damping values. This paper presents the previous experiments, which were performed with active sidestick (DLR, ACT/FHS) and centerstick (AFDD/RASCAL) inceptors for Rate and Attitude Command response types, the results of a simulator study for RC and AC response types, and the results of the recently conducted campaign at DLR. In all experiments regression analyses were performed based on pilot ratings. These were collected for selected combinations of the dynamic parameters natural frequency and damping in simulation and inflight.

Item URL in elib:https://elib.dlr.de/95297/
Document Type:Conference or Workshop Item (Speech)
Title:In-flight evaluation of active sidestick parameters with respect to handling qualities for rate command and attitude command response types
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
von Grünhagen, Wolfgangwolfgang.gruenhagen (at) dlr.deUNSPECIFIED
Müllhäuser, MarioMario.Muellhaeuser (at) dlr.deUNSPECIFIED
Höfinger, Marcmarc.hoefinger (at) dlr.deUNSPECIFIED
Lusardi, Jeff A.AMRDEC AFDDUNSPECIFIED
Date:2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:rotorcraft, handling qualities, sidestick inceptors, active inceptors, force-feel characteristics, force-displacement characteristics, stick parameters
Event Title:AHS Rotorcraft Handling Qualities Specialists' Meeting
Event Location:Huntsville, AL
Event Type:international Conference
Event Dates:20.-22.02.2014
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 Smart Rotorcraft
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Müllhäuser, Mario Rene
Deposited On:17 Feb 2015 14:59
Last Modified:17 Feb 2015 14:59

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.