Identification of modal models of helicopters using in-flight measurements
type: Item
instance of: scholarly article
zbMATH Open document ID: 0980.93018
author: T. Uhl
author: Wojciech Lisowski
publication date: 2001-07-18T00:00:00Z
Mathematics Subject Classification ID: 93B30
Mathematics Subject Classification ID: 93C95
zbMATH DE Number: 1621479
zbMATH Keywords: identification
zbMATH Keywords: modal models
zbMATH Keywords: correlation functions
zbMATH Keywords: complex helicopter structures
MaRDI profile type: Publication
title: Identification of modal models of helicopters using in-flight measurements
published in: Journal of Theoretical and Applied Mechanics (Warsaw)
review text: The paper deals with identification of dynamic modal models of helicopters, based on in-flight random measurements. The essence of the approach consists in the estimation of a set of correlation functions at measurement points and then inferring from that the modal models parameters. The correlation functions are approximated with a sum of exponentially decaying harmonic functions. The obtained modal models ensure evaluation of dynamic properties of complex helicopter structures in operating conditions. The application of the method to the identification of a flying helicopter is illustrated using real-life data.
reviewed by: Zygmunt Hasiewicz
description: scientific article; zbMATH DE number 1621479