General knowledge of aerodynamics of non-stationary flow, main
equations, Lagrange integral, velocity potential, boundary condi-
tions, aerodynamic effects of circulationless and circulatory flow.
Flow of a thin airfoil with finite velocity at the flow edge. Effect of
wing haunch. Flatter, equations of motion, flexion-torsion flatter of
wing airfoil. Influence of geometric, elastic and mass characteristics
on critical flatter velocity. Flex-torsional flatter of a finite span wing,
equations of equilibrium. Approximate methods for calculating flat-
ter velocity and frequency. Galerkin method. Criteria of elastic sta-
bility of a structure in flow. Wing flatter oblique wing. Low elongation
wing flatter. Flatter of the tailplane. Flatter with one degree of free-
dom. Flatter free-from-attachment aircraft. Flatter of plates and
shells. Non-linear flatter issues. Detachment Flatter. Static aeroe-
lasticity problems. Flatter research from historical perspective.
