Research on Nonlinear Roll Stability of a Rotarily-Molded Boat

Yu Liang Liu

doi:10.4028/www.scientific.net/AMM.687-691.543

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 687-691Research on Nonlinear Roll Stability of a...

Research on Nonlinear Roll Stability of a Rotarily-Molded Boat

Abstract:

On the basis of nonlinear features analysis of restoring torque, damping torque and especially hull deformation, a nonlinear roll equation of rotary molding boats has been established. The equation includes elastic deformation term which differs from existing ones usually borrowing ideas of steel boats. By numerical simulation, it’s found roll frequency and velocity increase when elastic deformation occurs, i.e. the roll stability margin shrinks which can underlie how to amend the stability evaluation criteria on rotary molding boats.

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Periodical:

Applied Mechanics and Materials (Volumes 687-691)

Pages:

543-547

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.687-691.543

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Online since:

November 2014

Authors:

Yu Liang Liu*

Keywords:

Elastic Deformation, Nonlinear Stability, Roll Motion, Rotarily-Molded Boat

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* - Corresponding Author

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