Methods of Ship Hull Form Improvement Based on Wave Pattern Analysis : 3 An Application of Wavelet Transform

Abstract

In order to supplement the Mathieu expansion method for ship hull form improvement in the previons reports so called discrete wavelet transform of wave height data measured for the longitudinal cut method in wave pattern analysis is applied in the present report. The present analysis gives local wave amplitude functions which show wave making properties of each section along the ship hull. The behavier of the obtained local amplitude function corresponds well with the variation of the sectional area curve. These results show that the present analysis may serve the ship hull from improvement.