QUANTIFICATION OF CORRELATION OF PREDICTED AND MEASURED TRANSFER FUNCTIONS FOR SHIP MOTIONS AND WAVE LOADS

PDF

Authors
  1. Ando, S.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
This paper introduces the total factor error (TFE), an index of correlation of predicted and measured transfer functions for ship motions and wave loads. TFE is defined as the ratio, expressed as percent, of the sum of weighted squares of the difference between the magnitudes (gain factors) of predicted and measured transfer functions to the sum of the weighted squares of the measured value. The wave spectrum of a given sea state is used as the weighting factor. Thus the error of predicted transfer function at a particular wave frequency is weighted by a measure of its importance. Eliminating the visual judgement and the use of words from experimental validation of computer-predicted transfer functions. TFE is an efficient, as well as objective, means of ensuring the reliability of the computer-predicted transfer functions for ship responses.
Keywords
Wave frequency;Total Factor Error (TFE)
Date of publication
18 Feb 1998
Number of Pages
17
DSTKIM No
99-00861
CANDIS No
506949
Format(s):
Hardcopy;Document Image stored on Optical Disk

Permanent link

Document 1 of 1

Date modified: