A data processing system for seakeeping tests has been provided in IHI Seakeeping and Maneuvering Tank. The test data are analysed by on-line in real time, and the results are printed out on a printer and plotted on a drum type plotter immediatley after the tests. The followings are contained in the analysing programs developed for the present system. Amplitude and phase analysis for tests in regular waves ; determining the coefficients of derivatives in equations of motions by vertical and lateral foced oscillation test; determining the roll damping coefficients by free rolling test; spectrum analysis in irregular waves. A method using the leakage effect in Fourier transformation is developed to determine the basic frequency used for analysing reasonably the test data in regular wave which contains irregular high frequency noises. This report introduces the softwares and hardware assembling the above system. (Wassmann)
Data analysis system for seakeeping tests in IHI seakeeping and maneuvering tank
Messwertverarbeitungssystem fuer Seetuechtigkeitsversuche im IHI Seetuechtigkeits- und Manovertank
Journal of the Kansai Society of Naval Architects ; 178 ; 39-44
1980
6 Seiten, 6 Bilder, 2 Tabellen, 7 Quellen
Aufsatz (Zeitschrift)
Englisch
Seakeeping test in IHI seakeeping and maneuvering tank
Tema Archiv | 1980
|Data analyzing system in IHI seakeeping and maneuvering tank
Tema Archiv | 1981
|Tema Archiv | 1983
The dynamics of marine craft : maneuvering and seakeeping
TIBKAT | 2004
|Wiley | 2021
|