DYNAMICALLY SIMILAR MODEL OF AIRCRAFT BEARING SURFACE Russian patent published in 2009 - IPC B64F5/00 B64C3/00 B64C5/00 

FIELD: aircraft engineering.

SUBSTANCE: proposed invention relates to aircraft engineering and can be used in analysing aeroelasticity on dynamically similar models of aircraft in altitude tunnels. Proposed model comprises primary set that simulates stiffness characteristics of structure and consists of plate, spars and ribs, and forming surface acting as the structure outer aerodynamic surface. Primary set plate is made from high-modulus polymer composite material and represents variable-thickness compartments with stepped and stepless surfaces. Spars and ribs also have stepped and stepless surfaces arranged on one side of aforesaid plate and jointed thereto along their stepless surfaces. Aforesaid forming surface consists of two parts, top and bottom, and is made from material with elasticity factor 10 times lower than that of primary set material.

EFFECT: higher accuracy of geometrical similarity and representation of mass-inertial and stiffness characteristics.

6 dwg