Global Model Identification for a Coaxial Helicopter

Barzin Hosseini, Franz Sax, Julian Rhein, Florian Holzapfel, Lukas Maier, Aaron Barth, Manfred Hajek, Benedikt Grebing

Research output: Contribution to conferencePaperpeer-review

9 Scopus citations

Abstract

In this paper, the Blade Element Momentum Theory (BEMT) hast been applied to setup a nonlinear model structure for a coaxial helicopter with a maximum take-off weight (MTOW) of 600kg. The model includes unknown aerodynamic parameters, which are estimated using flight test data. An extensive flight test campaign, with a fully instrumented CoAx 600 helicopter has been carried out to generate the required flight test data for parameter estimation. In this study, we use the maneuvers performed in the vicinity of the hover flight condition for system identification. The nonlinear model can be trimmed and linearized for the analysis of the system dynamics and control design. This has been done for one trim point in the study and the corresponding pole plan has been provided.

Original languageEnglish
StatePublished - 2022
Event78th Vertical Flight Society Annual Forum and Technology Display, FORUM 2022 - Fort Worth, United States
Duration: 10 May 202212 May 2022

Conference

Conference78th Vertical Flight Society Annual Forum and Technology Display, FORUM 2022
Country/TerritoryUnited States
CityFort Worth
Period10/05/2212/05/22

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