TRANSVERSE OSCILLATIONS OF A BEAM IN A DISTURBING MEDIUM

A solution of the problem of transverse oscillations of a cylindrical beam acted on by sea waves is presented. The beam is rigidly fastened at the bottom in a quiet water zone and protrudes above the water and there is a concentrated mass fastened to its upper end. The general solution for transverse oscillations of the beam is represented as the superposition of natural forms of the oscillations in the presence of an external distributed load. The effect of waves is described on the basis of the theory of orbital motions of a liquid and reduced to two components of the distributed load: frontal resistance, proportional to the square of the local velocities of liquid particles and inertial loads from the side of the moving liquid. It is assumed that partial flooding has no effect on the forms and frequencies of the natural oscillations of the beam. A calculation of the distribution of bending moments over the height of the beam for different phases of the passing wave with a given amplitude and repetition frequency are given.

• Supplemental Notes:
  • This article is a portion of "Propagation of Elastic and Elastoplastic Waves--Collection of Works."
• Authors:
  • Kuliyev, Y N
• Publication Date: 1969

Media Info

• Pagination: p. 98-105
• Serial:
  • Fan

Subject/Index Terms

• TRT Terms: Beams; Bending; Bending stress; Force; Loads; Stresses; Waves
• Old TRIS Terms: Beams (Structural); Wave forces on structures; Wave induced loads
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00019728
• Record Type: Publication
• Source Agency: Joint Publications Research Service
• Files: TRIS
• Created Date: Dec 1 1973 12:00AM