Rotational Behavior Tests of Smart Blades

  • Ogawa, Akinori (Japan Aerospace Exploration Agency The Institute of Space Technology and Aeronautics) ;
  • Hashimoto, Ryosaku (Japan Aerospace Exploration Agency The Institute of Space Technology and Aeronautic) ;
  • Matsuda, Yukio (Japan Aerospace Exploration Agency The Institute of Space Technology and Aeronautic) ;
  • Sofue, Yasushi (Japan Aerospace Exploration Agency The Institute of Space Technology and Aeronautic) ;
  • Hojo, Masahito (Japan Aerospace Exploration Agency The Institute of Space Technology and Aeronautics)
  • Published : 2004.03.01

Abstract

A smart blade conception has been proposed by the authors. With stretching-twisting coupling effect, the blade is twisted by centrifugal load or ambient temperature change. In this paper, the blades, made by three kinds of anti-symmetric laminates, are investigated by rotational tests. The results show the angle of smart blade tips increases in proportion to the 2nd power of a rotating speed and is well in agreement with the numerical results by FEM.

Keywords