METHODS FOR THE TIME SERIES ANALYSIS OF WATER WAVE EFFECTS ON PILES
Abstract
The object of the task is to obtain coefficients of drag and mass for vertical circular piles in a hurricane wave environment by the analysis, using non-periodic techniques, of force and water level measurements versus time as obtained in the open Gulf of Mexico. Three methods for the analysis of water wave effects on piles are outlined and compared, namely: bump-counting, time domain operations, and spectral operations. The computational requirements of the time-domain representation as introduced by Reid (1958) are contrasted with those required by the correspond ing spectral representation. The joint distribu tion of the velocity and the acceleration is given, from which the probability density func tion of the horizontal component of the force on the pile, f(t) K1 u u K2u, is derived where k1 and k2 are constants containing respectively coefficients of drag and mass. A detailed procedure for evaluating the probability density function is included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 14, 1963
- Accession Number
- AD0409966
Entities
People
- W. J. Pierson Jr.
Organizations
- Naval Facilities Engineering Service Center