Accession Number : AD0721874

Title :   Zur Theoretischen Behandlung Aeroelastisch Erregter Schwingungen Kreiszylindrischer Konstruktionen bei Periodischer Wirbelanregung (The Theoretical Treatment of Aeroelastic Resonance Vibration in Circular Cylindrical Structures with Periodic Vortex Excitation),

Corporate Author : DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V BRUNSWICK (WEST GERMANY)

Personal Author(s) : Forsching,Hans

Report Date : 04 MAY 1970

Pagination or Media Count : 14

Abstract : Theoretical relations for the analytical treatment of the aeroelastic stability of three-dimensional structures with circular cross-section at Reynolds numbers where a periodic Karman vortex excitation is existing are presented. Thereby the unsteady generalized air force terms are formulated by application of the aerodynamic strip theory using experimentally determined two-dimensional lift coefficients. Then the vibrational problem is treated as an aeroelastic resonance problem. In order to verify the applicability of the analytical procedure, experimental investigations were performed. (Author)

Descriptors :   (*AEROELASTICITY, VIBRATION), (*CYLINDRICAL BODIES, AEROELASTICITY), RESONANCE, THEORY, VORTICES, WEST GERMANY

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE