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Further study on aeroelastic response of aircraft wing with freeplay

Further study on aeroelastic response of aircraft wing with freeplay The complex aeroelastic equation of an aircraft wing with freeplay nonlinearity was built and applied for aeroelastic response analysis. This took into account multiple lumped mass points and directions of the control surface using the Roger rational function approximation. The aerodynamic analysis was based on the subsonic doublet lattice method and the external program of time history analysis method was employed. The aeroelastic response results show that amplitudes of generalized displacement considering the freeplay effect is decreased compared with those not considering the freeplay effect, and influenced by freeplay stiffness coefficients. Constant and variable step length calculations of the fourth order Runge-Kutta method can influence the results and efficiency. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Vibration and Control SAGE

Further study on aeroelastic response of aircraft wing with freeplay

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References (12)

Publisher
SAGE
Copyright
© The Author(s) 2011 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav
ISSN
1077-5463
eISSN
1741-2986
DOI
10.1177/1077546311424306
Publisher site
See Article on Publisher Site

Abstract

The complex aeroelastic equation of an aircraft wing with freeplay nonlinearity was built and applied for aeroelastic response analysis. This took into account multiple lumped mass points and directions of the control surface using the Roger rational function approximation. The aerodynamic analysis was based on the subsonic doublet lattice method and the external program of time history analysis method was employed. The aeroelastic response results show that amplitudes of generalized displacement considering the freeplay effect is decreased compared with those not considering the freeplay effect, and influenced by freeplay stiffness coefficients. Constant and variable step length calculations of the fourth order Runge-Kutta method can influence the results and efficiency.

Journal

Journal of Vibration and ControlSAGE

Published: Oct 1, 2012

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