Helicopter parameter estimation based on a nonlinear physics-based model

Barzin Hosseini, Aaron Barth, Manfred Hajek, Florian Holzapfel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

In this paper, time domain approaches will be applied to estimate the unknown parameters in a physics-based helicopter model. A nonlinear model structure is developed using the blade element momentum theory. We apply the Output Error Method implementation of the Maximum Likelihood estimation theory to estimate the unknown parameters in the model. This nonlinear model is linearized at hover for linear model analysis. The helicopter under investigation in this study is an unmanned helicopter with intermeshing rotors (synchropter). The test data was generated via automatic maneuver injection. We demonstrate that the proposed method provides promising system identification results by combining a physicsbased model and parameter estimation based on flight test data.

Original languageEnglish
Title of host publicationAIAA Scitech 2021 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-15
Number of pages15
ISBN (Print)9781624106095
DOIs
StatePublished - 2021
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
Duration: 11 Jan 202115 Jan 2021

Publication series

NameAIAA Scitech 2021 Forum

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online
Period11/01/2115/01/21

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