Simulation model fidelity enhancement using corrective force and moment increments: Review of activity performed in NATO-AVT Panel 296

Armin Taghizad, Mark White, Neil Cameron, Gareth Padfield, Ilkay Yavrucuk, Vincent Myrand-Lapierre, Michel Nadeau-Beaulieu, Sylvain Richard, Mark Tischler

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

1 Scopus citations

Abstract

The Applied Vehicle Technology (AVT) Panel of the NATO Science and Technology Organization has recently engaged a Research Task Group on the topic of rotorcraft flight simulation model fidelity. This group aimed to explore a comprehensive set of methods for flight mechanics simulation fidelity enhancement, including training simulation applications. Particular effort was also directed to the metrics used for simulation fidelity model assessment as suitable for the final intent of the model. The work presented in this paper was carried out in the framework of this Research Task Group, AVT-296, which examined seven different approaches; our paper focusses on just one of these. The objective was to assess flight-model renovation methods through four different applications. As a common approach, flight data from various helicopters were used to extract a set of flight dynamics information (state and control derivatives) that were used to compute corrective force and moment terms. The approach consists of a comparison between flight-test and flight mechanics model derivatives to compute delta forces and moments. These delta terms are added to the forces and moments through a linear combination and to generate the additional accelerations needed to capture any lacking dynamics. The derivatives that require updating need to be identified and, of course, will depend on the nature of the modelling deficiency. This paper shows how this method is applied to enhancing the lateral-directional oscillatory characteristics of flight models and how they can be upgraded to achieve higher fidelity for design and development applications but with special attention to meeting the fidelity requirements for flight training simulators.

Original languageEnglish
Title of host publication77th Annual Vertical Flight Society Forum and Technology Display, FORUM 2021
Subtitle of host publicationThe Future of Vertical Flight
PublisherVertical Flight Society
ISBN (Electronic)9781713830016
StatePublished - 2021
Externally publishedYes
Event77th Annual Vertical Flight Society Forum and Technology Display: The Future of Vertical Flight, FORUM 2021 - Virtual, Online
Duration: 10 May 202114 May 2021

Publication series

Name77th Annual Vertical Flight Society Forum and Technology Display, FORUM 2021: The Future of Vertical Flight

Conference

Conference77th Annual Vertical Flight Society Forum and Technology Display: The Future of Vertical Flight, FORUM 2021
CityVirtual, Online
Period10/05/2114/05/21

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