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Numerical Study of Parametric Roll on a Fishing Vessel [PDF]
Volume 9: Odd M. Faltinsen Honoring Symposium on Marine Hydrodynamics, 2013 Present research activity examines numerically the occurrence of parametric roll on a fishing vessel interacting with regular head-sea waves. The adopted solver is an efficient 3-D numerical Domain-Decomposition strategy for the seakeeping of a 6-dof vessel without and with small forward speed and possibly subjected to bottom-slamming and water-on-deck
Greco M, Lugni C
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Multi-parametric Dynamic Analysis of a Rolling Bearings System
Strojniški vestnik – Journal of Mechanical Engineering, 2021 A method for calculating amplitudes and constructing frequency characteristics of forced and self-excited vibrations of a rotor-fluid-foundation system on rolling bearings with a non-linear characteristic based on the method of complex amplitudes and harmonic balance has been developed.
Kydyrbekuly, Almatbek +3 more
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Journal of Marine Science and Engineering, 2020 Although it is widely accepted that accurate modeling of wave energy converters is essential for effective and reliable design, it is often challenging to define an accurate model which is also fast enough to investigate the design space or to perform ...
Giuseppe Giorgi +3 more
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European Physical Journal C: Particles and Fields, 2017 The previously introduced class of two-parametric phenomenological inflationary models in general relativity in which the slow-roll assumption is replaced by the more general, constant-roll condition is generalized to the case of f(R) gravity.
Hayato Motohashi, Alexei A. Starobinsky
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Shrinking the Warm Little Inflaton
Journal of High Energy Physics, 2023 We show that warm inflation can be successfully realized in the high temperature regime through dissipative interactions between the inflaton and a single fermionic degree of freedom, provided that the latter’s mass is an oscillatory function of the ...
Paulo B. Ferraz, João G. Rosa
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Study on the parametric roll characteristics of ships under bow oblique waves
Zhongguo Jianchuan YanjiuObjectiveParametric roll is a common stability loss mode considered in the international maritime organization (IMO) second-generation intact stability framework, most often occurring in head or following seas.
Wuyang LIU +4 more
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Comprehensive calculation and safety assessment of parametric roll of very large container ship
Zhongguo Jianchuan Yanjiu, 2017 As the significant variation of GM in waves for very large container ships, strict demands are raised for this ship type in the evaluation and safety assessment of parametric roll.
MA Chengyuan +3 more
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IET Renewable Power Generation, 2021 The oscillating‐water‐column (OWC) spar‐buoy is a type of wave energy converter that may exhibit undesirable large roll and pitch amplitudes caused by a dynamic instability induced by parametric resonance.
Josh Davidson +3 more
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BrodogradnjaTo investigate the parametric rolling motion of container ships navigating in head seas, this study utilizes the unsteady RANS approach combined with dynamic overlapping grid technology to simulate parametric roll in a container ship under the coupled ...
Liu Liang +7 more
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Engineering Science and Technology, an International Journal, 2017 This paper presents a method for systematic investigations on static and dynamic roll behavior and improvement to the stability dynamics based on increasing roll stiffness of the suspension.
Emre Sert, Pınar Boyraz
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