ELASTOHYDRODYNAMICS OF TOWED SLENDER BODIES: THE EFFECT OF NOSE AND TAIL SHAPES ON STABILITY

A general theory is presented to account for the dynamics and stability of a slender flexible body with a rounded nose section and a truncated rounded tail section, towed underwater. Particular attention is focused on the hydrodynamic forces acting on the two extremities of the body, which are determined by means of ideal flow theory, rather than by slender body theory. To this end, general expressions were obtained for the forces and moments acting on an ellipsoid undergoing planer motions. Sufficient results are presented to illustrate (1) the dynamical behavior of the body with increasing towing speed, and (2) the effect of some parameters, such as the shape of the ends, on stability. It was found that stability is mainly controlled by the shape of the tail section of the body.

• Corporate Authors:

  American Institute of Aeronautics and Astronautics

  1290 Avenue of the Americas
  New York, NY  United States  10019
• Authors:
  • Paidoussis, M P
  • Byung-Kun, Y
• Publication Date: 1976-10

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 127-134
• Serial:
  • Journal of Hydronautics
  • Volume: 10
  • Issue Number: 4
  • Publisher: American Institute of Aeronautics and Astronautics

Subject/Index Terms

• TRT Terms: Cylindrical bodies; Dynamic modulus of elasticity; Stability analysis; Towing devices
• Uncontrolled Terms: Elastodynamic analysis
• Old TRIS Terms: Oscillating cylinders; Towed bodies
• Subject Areas: Design; Marine Transportation; Terminals and Facilities; Vehicles and Equipment;

Filing Info

• Accession Number: 00148576
• Record Type: Publication
• Source Agency: American Institute of Aeronautics and Astronautics
• Files: TRIS
• Created Date: Feb 23 1977 12:00AM