The University of Southampton
University of Southampton Institutional Repository

Dynamic response of a high altitude tethered balloon system

Dynamic response of a high altitude tethered balloon system
Dynamic response of a high altitude tethered balloon system
This paper illustrates a procedure to calculate the response of a tethered spherical aerostat to gusts, including the effect of structural nonlinearity and accounting for some of the fluid–structure interaction between the aerostat and tether line. The procedure developed and presented here is based on a full three-dimensional dynamic finite element model, with aerodynamic loads calculated from the relative velocity between a time-varying input airflow and resulting structural velocities. Exact solutions for the static response and a simplified dynamic model, both developed to validate the results of the procedure illustrated in this paper, are also derived and described in detail. The dynamic responses to gusts are compared with the equivalent steady-state solution to assess the approximations of the static solutions. Particular emphasis is placed on the output rotation of the aerostats to quantify disturbances on the pointing stability produced by gusts.
0021-8669
2032-2040
Aglietti, G.S.
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Aglietti, G.S.
e44d0dd4-0f71-4399-93d2-b802365cfb9e

Aglietti, G.S. (2009) Dynamic response of a high altitude tethered balloon system. Journal of Aircraft, 46 (6), 2032-2040. (doi:10.2514/1.43332).

Record type: Article

Abstract

This paper illustrates a procedure to calculate the response of a tethered spherical aerostat to gusts, including the effect of structural nonlinearity and accounting for some of the fluid–structure interaction between the aerostat and tether line. The procedure developed and presented here is based on a full three-dimensional dynamic finite element model, with aerodynamic loads calculated from the relative velocity between a time-varying input airflow and resulting structural velocities. Exact solutions for the static response and a simplified dynamic model, both developed to validate the results of the procedure illustrated in this paper, are also derived and described in detail. The dynamic responses to gusts are compared with the equivalent steady-state solution to assess the approximations of the static solutions. Particular emphasis is placed on the output rotation of the aerostats to quantify disturbances on the pointing stability produced by gusts.

Text
Dynamic_Response_of_a_High-Altitude_Tethered_Balloon_System.pdf - Version of Record
Restricted to Repository staff only
Request a copy

More information

Published date: November 2009
Organisations: Astronautics Group

Identifiers

Local EPrints ID: 69818
URI: http://eprints.soton.ac.uk/id/eprint/69818
ISSN: 0021-8669
PURE UUID: 6cdab11e-c48d-40f9-833b-1e8910137b6f

Catalogue record

Date deposited: 04 Dec 2009
Last modified: 13 Mar 2024 19:45

Export record

Altmetrics

Contributors

Author: G.S. Aglietti

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×