A STUDY OF SHIP HULL VIBRATION
Abstract
Various types of vibration are studied for the complete hull structure which may be set up by periodic forces which synchronize with on of the natural frequencies. It includes a review of the investigations made in the field of hull vibration from the original studies of O. Schlick in 1884 up to date. It also gives an account of model experiments and full scale measurements conducted recently at the U. S. Experimental Model Basin. Particular attention is given to the methods of J. L. Taylor, E. Schadlofsky, and F. M. Lewis which are considered the most practical of the theoretical methods. The limitations of these methods are pointed out and the relation between the vibration problem and the strength problem is emphasized. An appraisal is given of the method of F. M. Lewis for estimating the effect of the sourrounding water on the natural frequency. The conclusion is drawn that for naval vessels the most practical procedure is to estimate the natural frequencies from measurements previously made on ships of the same class by selecting the appropriate value of the Schlick constant. The graphical methods are recommended only for cases of radically new design where empirical constants are not available.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1935
- Accession Number
- AD0490020
Entities
People
- R. T. Mcgoldrick