Optimization of bottom-hinged flap-type wave energy converter for a specific wave rose

Behzad, Hamed; Panahi, Roozbeh

doi:10.1007/s11804-017-1405-y

Cited by 13 publications

(3 citation statements)

References 21 publications

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“…To simulate the ship motions, ANSYS AQWA is employed to simplify the modeling process from the hull model until the ship motions analysis. AQWA has also been widely utilized by researchers to analyze a variety of maritime and offshore structures, including wave energy dissipators 18) , floating breakwaters by Samei 19) and Rajabi 20) , wave energy converters 21) , vessels 22) , and wind turbines by Chu 23) and Huijs 24) . Steps for simulating the ship motions subjected to ocean waves inside the AQWA are visualized in Fig.…”

Section: Models Of Ship Motionsmentioning

confidence: 99%

Motor Sizing of a Ship-Mounted Two-DoF Manipulator System Considering Variations of Ocean Wave Direction

Mohamad Luthfi Ramadiansyah,

Yazid,

Mirdanies

et al. 2023

Evergreen

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Inverse dynamics model of the manipulator system combined with ship motions is required in order to size the electrical motor performance for ship-mounted subsystems. This study examines a sizing methodology by developing an integrated dynamical model of a two-DoF manipulator system mounted on the ship by using Lagrange-Euler method and simulating ship motions using ANSYS AQWA. Given the parameters of manipulator links and six-DoF ship motions, joint torques of a two-DoF manipulator and its electrical motors can be calculated by including the mechanical transmission. Under variations of wave direction with the JONSWAP spectrum applied, the results show that the ship motions significantly contribute to the mechanical and electrical manipulator torques, with the highest value at the 90 o wave direction (beam sea) for the azimuth motor and at the 45 o wave direction (quartering sea) for the elevation motor. The results can be used to size the motor torque specification by taking into account the random wave-induced ship motions and they can be extended to the development of a robust control system for the manipulator system.

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Section: Models Of Ship Motionsmentioning

confidence: 99%

Motor Sizing of a Ship-Mounted Two-DoF Manipulator System Considering Variations of Ocean Wave Direction

Mohamad Luthfi Ramadiansyah,

Yazid,

Mirdanies

et al. 2023

Evergreen

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“…The densities of the plate and the seawater are identified with the variables ρ p and ρ w , whilst the centre of buoyancy and centre of the mass of the flap by the variables r b and r c . For the case of reactive control strategy, K is fixed that of a vertical plate [25], and B m = B:…”

Section: Power Controlmentioning

confidence: 99%

“…Nonetheless, to represent the PTO accurately when performing experimental and numerical simulations is a continuous challenge due to the complex systems associated with the control strategy of the PTO [12,21]. Previous work considering the influence of the PTO in the operation of the OWSC includes the experimental work done by [23,24] and the numerical and semi-analytical studies undertaken by [24][25][26][27][28]. In these semi-analytical studies, the fluid problem set up using linear theory is solved by the application of numerical methods.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic Modelling of An Oscillating Wave Surge Converter Including Power Take-Off

Benites-Munoz

Huang

Anderlini

et al. 2020

JMSE

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To estimate the response of wave energy converters to different sea environments accurately is an ongoing challenge for researchers and industry, considering that there has to be a balance between guaranteeing their integrity whilst extracting the wave energy efficiently. For oscillating wave surge converters, the incident wave field is changed due to the pitching motion of the flap structure. A key component influencing this motion response is the Power Take-Off system used. Based on OpenFOAM, this paper includes the Power Take-off to establish a realistic model to simulate the operation of a three-dimensional oscillating wave surge converter by solving Reynolds Averaged Navier-Stokes equations. It examines the relationship between incident waves and the perturbed fluid field near the flap, which is of great importance when performing in arrays as neighbouring devices may influence each other. Furthermore, it investigates the influence of different control strategy systems (active and passive) in the energy extracted from regular waves related to the performance of the device. This system is estimated for each wave frequency considered and the results show the efficiency of the energy extracted from the waves is related to high amplitude pitching motions of the device in short periods of time.

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Wave and Wind Energy Boost the Marine Key Points Construction

Zheng

et al. 2018

Springer Oceanography

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Optimization of bottom-hinged flap-type wave energy converter for a specific wave rose

Cited by 13 publications

References 21 publications

Motor Sizing of a Ship-Mounted Two-DoF Manipulator System Considering Variations of Ocean Wave Direction

Motor Sizing of a Ship-Mounted Two-DoF Manipulator System Considering Variations of Ocean Wave Direction

Hydrodynamic Modelling of An Oscillating Wave Surge Converter Including Power Take-Off

Wave and Wind Energy Boost the Marine Key Points Construction

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