Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Estimation of damping through internally excited roll tests
Year:2018
Research Areas
  • Naval architecture
Information
Abstract
Roll damping represents a key factor for a proper estimation of the ship behaviour in a seaway. However, due to the typical dominance of viscous effects, accurately estimating roll damping is a challenging task. The most common experimental approach for determining roll damping arameters is based on the analysis of roll decays, although forced and excited roll tests in calm water or in waves have been used as well. This paper proposes a technique for estimating roll damping from internally excited roll tests in calm water. Tests are performed by exciting roll motion through an internal shifting mass. Roll damping parameters can then be determined from the analysis of the obtained roll response curves. The paper describes the experimental echnique and a nonlinear mathematical model for representing the system dynamics. A procedure is proposed for determining roll damping coefficients, using, as a basis for the analysis, the developed mathematical model. A case study is reported where damping coefficients are determined for a trawler fishing vessel using the proposed technique. Obtained results are compared with those from standard roll decays analysis. For model validation purposes, the experimental roll response curves are also compared with those simulated through the developed mathematical model.
International
Si
JCR
Si
Title
Ocean Engineering. Cuartil: Q1; Categoría: Engineering, Marine
ISBN
0029-8018
Impact factor JCR
1,894
Impact info
Datos JCR del año 2016
Volume
160
10.1016/j.oceaneng.2018.04.052
Journal number
From page
490
To page
506
Month
ABRIL
Ranking
Cuartil: Q1; Categoría: Engineering, Marine
Participants
  • Autor: Adriana Oliva Remola (UPM)
  • Autor: Gabriele Bulian (Universidad de Trieste)
  • Autor: Luis Perez Rojas (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Arquitectura, Construcción y Sistemas Oceánicos y Navales (Dacson)
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