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Flutter study of a solar powered high-altitude long endurance UAV

Sukinder Singh, Kevin R. Anderson, Steven Dobbs, Donald Edberg

Abstract


This paper presents an aero-elastic flutter analysis on a high altitude long endurance unmanned air vehicle. Numerical finite element analysis (FEA) based simulations for flutter have been carried using the commercial FEA package ANSYS. Analytical flutter analysis is performed to verify the FEA results. The analytic flutter analysis gives the divergence speed to be 32.7 m/sec. The numerical flutter analysis of the rudder shows the bending and torsional modes for the rudder were 60 Hz and 110 Hz, respectively. The numerical flutter analysis of the rudder shows the maximum critical speed to be 75 m/sec and the divergence speed to be 65 m/sec.

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References


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DOI: https://doi.org/10.37628/jsmfe.v2i2.62

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