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Experiment on vibration in water of a cylindrical shell fixed in water; Suichu ni koteisareta ento shell no sessui shindo jikken

Abstract

In order to utilize more effectively wide oceanic spaces, a feasibility study is performed on submerged large shell structures from the aspect of structural engineerings. As part of the study, for the purpose of deriving dynamic response characteristics of a structure, development was made on a numerical analysis code, `DASOR`, required to analyze natural frequency of a rotating shell fixed in water. The `DASOR` is a dynamic analysis code to derive added water mass effect, and effects of water depth on the dynamic response characteristics based on the shell theory by Donnell-Mushtari-Vlasov. This paper describes an experiment using a cylindrical shell to elucidate effects of the cylindrical shell on vibration characteristics due to contact with water. Comparisons and discussions were given on the result of numerical calculation using the `DASOR`, solution of a simplified theory analysis, and the result of the experiment to make clear the reasonability of the `DASOR`. The cylindrical shell in water has its natural frequency decreased due to the added water mass effect in association with increase in the water level. The `DASOR` showed good agreement with the experimental values as a result of giving considerations on the boundary conditions, by which its reasonability was verified.  More>>
Authors:
Toyota, K; Yasuzawa, Y; Kagawa, K; Nanatsuya, Y [1] 
  1. Kyushu University, Fukuoka (Japan). Faculty of Engineering
Publication Date:
Apr 10, 1996
Product Type:
Conference
Report Number:
CONF-9605248-
Reference Number:
SCA: 420204; 423000; 990200; PA: NEDO-96:913884; EDB-97:015815; SN: 97001718570
Resource Relation:
Conference: 92. Meeting of West Japan Society of Naval Architects, Seibu zosenkai dai 92 kai reikai, Yamaguchi (Japan), 9-10 May 1996; Other Information: PBD: 10 Apr 1996; Related Information: Is Part Of 92nd Meeting of West Japan Society of Naval Architects. Summary of papers; PB: 180 p.; Seibu zosenkai dai 92 kai reikai. Ronbun kogai
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; MECHANICAL STRUCTURES; UNDERWATER; ANCHORS; CYLINDERS; SHELLS; MECHANICAL VIBRATIONS; FEASIBILITY STUDIES; NUMERICAL ANALYSIS; LEVELS; COMPUTER CODES; EIGENFREQUENCY; BOUNDARY CONDITIONS
OSTI ID:
414187
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE97721550; TRN: 96:913884
Availability:
Available from West Japan Society of Naval Architects, 10-1, Hakozaki 6-chome, Higashi-ku, Fukuoka, Fukuoka Prefecture, Japan; OSTI as DE97721550
Submitting Site:
NEDO
Size:
pp. 131-136
Announcement Date:
Jan 17, 1997

Citation Formats

Toyota, K, Yasuzawa, Y, Kagawa, K, and Nanatsuya, Y. Experiment on vibration in water of a cylindrical shell fixed in water; Suichu ni koteisareta ento shell no sessui shindo jikken. Japan: N. p., 1996. Web.
Toyota, K, Yasuzawa, Y, Kagawa, K, & Nanatsuya, Y. Experiment on vibration in water of a cylindrical shell fixed in water; Suichu ni koteisareta ento shell no sessui shindo jikken. Japan.
Toyota, K, Yasuzawa, Y, Kagawa, K, and Nanatsuya, Y. 1996. "Experiment on vibration in water of a cylindrical shell fixed in water; Suichu ni koteisareta ento shell no sessui shindo jikken." Japan.
@misc{etde_414187,
title = {Experiment on vibration in water of a cylindrical shell fixed in water; Suichu ni koteisareta ento shell no sessui shindo jikken}
author = {Toyota, K, Yasuzawa, Y, Kagawa, K, and Nanatsuya, Y}
abstractNote = {In order to utilize more effectively wide oceanic spaces, a feasibility study is performed on submerged large shell structures from the aspect of structural engineerings. As part of the study, for the purpose of deriving dynamic response characteristics of a structure, development was made on a numerical analysis code, `DASOR`, required to analyze natural frequency of a rotating shell fixed in water. The `DASOR` is a dynamic analysis code to derive added water mass effect, and effects of water depth on the dynamic response characteristics based on the shell theory by Donnell-Mushtari-Vlasov. This paper describes an experiment using a cylindrical shell to elucidate effects of the cylindrical shell on vibration characteristics due to contact with water. Comparisons and discussions were given on the result of numerical calculation using the `DASOR`, solution of a simplified theory analysis, and the result of the experiment to make clear the reasonability of the `DASOR`. The cylindrical shell in water has its natural frequency decreased due to the added water mass effect in association with increase in the water level. The `DASOR` showed good agreement with the experimental values as a result of giving considerations on the boundary conditions, by which its reasonability was verified. 3 refs., 9 figs., 2 tabs.}
place = {Japan}
year = {1996}
month = {Apr}
}