The present report deals with the results of the vibration measurements of a 32,000 ton d.w. super tanker on trial trips. All the natural frequencies of the flexural and torsional vibrations up to the blade frequency were observed involving those of small amplitude measured by Geiger vibrographs and by the optical one which was made on trial. Since the measured critical frequencies of the flexural vibration of the hull are almost proportional to the number of nodes in both the ballast and loaded conditions, it is pointed out that the higher modes of hull vibration are considered to be of shearing vibration. The details of the theoretical investigations on the present observations are not presented except that one of the computed results of the vibration profile of the higher mode of shearing vibration of the hull is quoted as an example.
Vibration measurements on a 32,000 ton d.w. super tanker
International Shipbuilding Progress ; 3 , 24 ; 409-414
1956-08-01
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
"Talavera", 32,000 tons W-W tanker
Engineering Index Backfile | 1960
32,000-ton D.W.C. motor tanker "barendrecht"
Engineering Index Backfile | 1960
32,000-ton passenger liner "Bremen"
Engineering Index Backfile | 1959
Pennsylvania railroad destroying 32,000 freight cars
Engineering Index Backfile | 1937
The 32,000-ton motor liner "Augustus"
Engineering Index Backfile | 1926