Nonlinear effect of catenary moorings on the floating body dynamics

Autor:	Takayuki Nakamura, Quy Huu Le, Sadatoshi Ohmori
Rok vydání:	1995
Předmět:	Engineering Series (mathematics) business.industry Dynamics (mechanics) Stiffness General Medicine Structural engineering Mooring Nonlinear system Spring (device) Frequency domain Catenary medicine Geotechnical engineering medicine.symptom business
Zdroj:	PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN. 11:321-326
ISSN:	1884-8265 0912-7348
DOI:	10.2208/prooe.11.321
Popis:	The time-domain analysis of the floating body dynamics in shallow water is developed based on the Green's function method. A practical method for evaluating hydrodynamic forces on a two-dimensional floating body is presented in detail. Using the numerical procedure developed here, the effect of nonlinearity of catenary mooring on the dynamics of a rectangular dock is examined. Specifically, the linearized result based on the frequency-domain analysis is compared with the one by the time-domain analysis. Also, the estimation of the equivalent spring stiffness appropriate to the frequency domain analysis is examined extensively. Finally, a series of model tests is carried out to verify the time-domain analysis and also the estimation method of the equivalent spring stiffness.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::910c2e5694f0249dd0fb5e543379479f https://doi.org/10.2208/prooe.11.321 Zobrazit plný text záznamu