Identification of the dynamics of a flexible delta wing model

Rajamurthy, MS and Subha, G and Basappa, MR (1993) Identification of the dynamics of a flexible delta wing model. In: Symposium on System identification, 24-25 Nov 1993, Bangalore, India.

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Abstract

This paper details the identification of the dynamics of a flexible delta wing model. The wing model was tested in the low speed dynamic wind tunnel of NAL at three dynamic pressure conditions. The model was aerodynamically excited by driving its trailing edge control surface with sinesweep signals. Time domain time series identification technique was used to identify the flexible wing dynamics from its responses. Lower order models were deduced from the identified higher order models using balanced reduction technique. The identified dynamics showed that the frequency and damping of the dominant mode varied appreciably for the tested dynamic pressure range.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Dynamics; Identification;Delta wings;Aircraft;Wings (aircraft);Excitation;Damping;Domains;Aerospace;Aerodynamics; Balancing;Driving;Control surfaces;Wind tunnels; Aircraft components;Trailing edges;Delta wings;Flexible wings;System dentification
Subjects: AERONAUTICS > Aerodynamics
Division/Department: Flight Mechanics and Control Division, Other, Flight Mechanics and Control Division
Depositing User: Mrs Manoranjitha M D
Date Deposited: 20 Dec 2006
Last Modified: 24 May 2010 09:54
URI: http://nal-ir.nal.res.in/id/eprint/3791

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