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Modeling of geared positioning systems: An object-oriented gear contact model with validation

van der Linden, Franciscus L. J. (2015) Modeling of geared positioning systems: An object-oriented gear contact model with validation. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. SAGE Publications. DOI: 10.1177/0954406215592056 ISSN 0954-4062

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Official URL: http://pic.sagepub.com/lookup/doi/10.1177/0954406215592056

Abstract

In aerospace positioning actuators, gear efficiencies of 85% as well as breakout forces as high as 50% of the stall load of the actuator are observed at very low temperature conditions. Due to the low efficiency and high loading, stiction in these actuators is common which can lead to limit cycles or problems with controlling the actuators. To be able to correctly predict and assess these effects using simulations, a complete actuator, including motor, inverter, load and controller is needed. This article presents an object based, numerically efficient gear contact in a planar environment with user-defined friction- and stiffness laws. The emphasis of the modeling is not a fully detailed contact model, but the description of a gear contact model which can be used for system simulations like complete aircraft electro-mechanical actuators including control surfaces. The presented model is suitable for complex gearing configurations (e.g. compound planetary gears). This is enabled by breaking down the transmission into the basic gear contacts. By adding masses and constraints from an existing component library, a complete transmission can be modeled. The generated model can be used for standalone simulations or can be used in multi-domain simulations like actuator modeling, in order to analyze the complete actuator model including parts such as drives, controllers and mechanical systems. The presented models have been validated using a gear test rig for a single stage spur gear.

Item URL in elib:https://elib.dlr.de/96990/
Document Type:Article
Title:Modeling of geared positioning systems: An object-oriented gear contact model with validation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
van der Linden, Franciscus L. J.franciscus.vanderlinden (at) dlr.deUNSPECIFIED
Date:29 June 2015
Journal or Publication Title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1177/0954406215592056
Publisher:SAGE Publications
ISSN:0954-4062
Status:Published
Keywords:Gear Dynamics, Dynamic Modelling, Multibody Dynamics, Actuators, Powertrain, Experimental Mechanics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: van der Linden, Franciscus
Deposited On:24 Aug 2015 15:34
Last Modified:31 Jul 2019 19:53

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