Accession Number : AD0700275

Title :   NATURAL FREQUENCIES OF A BODY OF REVOLUTION VIBRATING TRANSVERSELY IN A FLUID,

Corporate Author : IOWA UNIV IOWA CITY IOWA INST OF HYDRAULIC RESEARCH

Personal Author(s) : Landweber,Louis

Report Date : AUG 1968

Pagination or Media Count : 58

Abstract : A previously developed procedure, in which the natural frequencies of a body vibrating in a fluid are given by the eigenvalues of the potential energy matrix of an elastic body with respect to the combined kinetic energy matrix of the body and fluid, is applied to a body revolution. Integral relations between the velocity potential on the body and the vibration velocity, and the expression for the kinetic energy of the fluid energy. Integrals for the kinetic and potential energies of the elastic body, taking both bending and shear into account, are also discretized. The method is illustrated by application to a form with assumed inertial and elastic characteristics. (Author)

Descriptors :   (*BODIES OF REVOLUTION, *VIBRATION), RESONANT FREQUENCY, KINETIC ENERGY, INTEGRAL EQUATIONS, POTENTIAL ENERGY, ELASTIC PROPERTIES, BENDING, SHEAR STRESSES, FLUIDS, COMPUTER PROGRAMS

Subject Categories : Fluid Mechanics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE