AERODYNAMIC LOAD OF AN AIRCRAFT WITH A HIGHLY ELASTIC WING

AERODYNAMIC LOAD OF AN AIRCRAFT WITH A HIGHLY ELASTIC WING

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In this article, a method for calculation of air loads of an aircraft 3d target with an elastic wing is presented.The method can predict a redistribution of air loads when the elastic wing deforms.Unlike the traditional Euler or Navier-Stokes CFD to FEM coupling, the method uses 3D panel method as a source of aerodynamic data.This makes the calculation feasible on a typical recent workstation.

Due to a short computational time and low hardware demands this method is suitable for both the preliminary design stage and the load evaluation stage.A case study is presented.The study compares a glider wing performing Other Items a pull maneuver at both rigid and and elastic state.The study indicates a significant redistribution of air load at the elastic case.