EFFECT OF RELATIVE MOTION ON DYNAMIC RESPONSE IN WAVE-INDUCED OSCILLATION OF A CYLINDRICAL PILE

This paper discusses the effect of the relative motion in the inertia force component by theoretical calculations of the wave making resistance against the pile. The wave making resistance is composed of two parts; the one is in phase with the acceleration of the pile and corresponds to the added mass, the other acts as a damping force inphase with the velocity of the pile. In this paper a pile is replaced by a system having one degree of freedom, with an equivalent mass and load concentrated at the top. Numerical calculations are carried out for a pile of 1.5 m diameter at the water depth of 30 m, with and without a platform at the top. The effect of the relative motion is examined from these results.

• Supplemental Notes:
  • This paper was presented at Session 3 of Vib Probl in Ind, International Symposium held April 10-12, 1973, Keswick, England.
• Corporate Authors:

  Vibration Problems in Industry, International Symp

  Keswick,   England 
• Authors:
  • Ito, Y
• Publication Date: 1973

Media Info

• Pagination: 18 p.

Subject/Index Terms

• TRT Terms: Coefficients; Loads; Mass; Support piles; Wave resistance; Waves
• Old TRIS Terms: Added mass; Wave induced loads
• Subject Areas: Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00084579
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: #124 Proc Paper
• Files: TRIS
• Created Date: May 19 1975 12:00AM