In the present paper, a numerical investigation and simulation of the cable-membrane wing of the 1917 biplane Ansaldo SVA5 is shown. This activity was mainly sug-gested by a renewed interest about membrane wings, that are currently proposed for specific classes of UAV planes as MAV and HALE aircraft. The study was also performed to evaluate the structural behavior of a such type of wing configuration from an historical point of view. Preliminarily, a procedural FEM model, able to accurately describe wing geometry, topol-ogy and materials, was developed. In order to properly simulate the wing structure subjected to tensile preloads (shrinking dope effects and cable pre-tension), manoeuvre loads and ai-leron deflection, a specific solution procedure, consisting of several non linear analyses, was performed. Some preliminary results, related to fabric skin, wooden parts and steel-wire ca-bles have been finally reported in terms of overall displacements, strain and stress distribution.
Study of the structural behavior of a membrane wing: retrospective analysis of the 1917 biplane Ansaldo SVA5
IUSPA, Luigi;RUOCCO, Eugenio
2009
Abstract
In the present paper, a numerical investigation and simulation of the cable-membrane wing of the 1917 biplane Ansaldo SVA5 is shown. This activity was mainly sug-gested by a renewed interest about membrane wings, that are currently proposed for specific classes of UAV planes as MAV and HALE aircraft. The study was also performed to evaluate the structural behavior of a such type of wing configuration from an historical point of view. Preliminarily, a procedural FEM model, able to accurately describe wing geometry, topol-ogy and materials, was developed. In order to properly simulate the wing structure subjected to tensile preloads (shrinking dope effects and cable pre-tension), manoeuvre loads and ai-leron deflection, a specific solution procedure, consisting of several non linear analyses, was performed. Some preliminary results, related to fabric skin, wooden parts and steel-wire ca-bles have been finally reported in terms of overall displacements, strain and stress distribution.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
