Development of submarine cable hydrodynamic loads calculation program using MATLAB

Bayoumi, Seif; Hamdy, Mohamed; Elazm, Mohamed M. Abo; Shehadeh, Mohamed

doi:10.1177/1687814020906080

Cited by 3 publications

(3 citation statements)

References 7 publications

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Section: Model Description and Data Reductionmentioning

confidence: 99%

“…Morison equation was used to calculate forces on the structure since its efficiency was proven in predicting loads on relatively small structures. 20,25 Wave force and moment in surge and pitch directions, respectively, are assumed to consist of inertia and drag components aswhere C D and C M are the drag and inertia coefficients, A is the area, ∇ is the underwater volume, and ρ is the water density. u˙ and u¨ are the velocity and acceleration of the water particles which can be obtained from linear wave theory.…”

Section: Introductionmentioning

confidence: 99%

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Experimentally validated simplified prediction model of unloaded spar-buoy wave energy converter motions’ responses in waves

Bayoumi

Amin

Öterkuş

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part A:

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The main objective of this study is to develop a fast and validated model to predict the motions’ responses of a spar-buoy wave energy converter based on oscillating water column principle. Experiments and former investigations highlighted the strong effect of the spar-buoy heave motion on the performance of the OWC whereas water oscillations slightly affect the spar-buoy motions. Therefore, a single degree of freedom model was adopted to simulate the structure’s surge, heave, and pitch responses separately. The prediction of the structure’s heave and pitch responses is a straightforward task and results were experimentally validated and compared to previous studies. Linear and quadratic damping coefficients were introduced for better agreement between measured and predicted pitch responses. In contrast, surge response prediction task was more complicated as it requires the consideration of the mooring system installation properties, while the mooring configuration was not experimentally investigated since the reduced-scale model was floating freely (un-moored). Therefore, the predicted surge response obtained from the proposed model was validated using the finite element method. Two different approaches were used to solve the equation of motion in surge direction considering multi-catenary mooring system. Static approach where constant mooring-lines stiffness was used and a quasi-static approach where reaction curves developed were used to estimate the instant resultant mooring line tension at different offsets. Load excursion and reaction curves of the full-scale device developed by the proposed model were finally validated.

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Section: Model Description and Data Reductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimentally validated simplified prediction model of unloaded spar-buoy wave energy converter motions’ responses in waves

Bayoumi

Amin

Öterkuş

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part A:

Self Cite

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show abstract

“…[22][23][24] MATLAB has a strong matrix computing capability, and its programming environment is friendly, very suitable for the preparation and operation of all kinds of optimization algorithms. [25][26][27] Therefore, this article will combine the advantages of these two software to provide a hanger forces optimization allocation strategy based on AGA.…”

Section: Introductionmentioning

confidence: 99%

Hanger forces optimization of ground test device on deployable structure

Lin

Chen

Zhou

et al. 2021

International Journal of Space Structures

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When using suspension method to simulate the microgravity environment, part of the hanger forces are used to offset the influence of gravitational field on the deployable structure, while the other part produces additional forces that affect the driving forces and precision of the deployable structure. In order to reduce the adverse effect of hanger forces, and avoid the construction of complex finite element theoretical model, an optimization method based on adaptive genetic algorithm with MATLAB and Nastran co-simulation is proposed. Then, the hanger forces are optimized, and the deployable structure deformation has been reduced 49%. It suggests that the adverse effect of hanger forces has been effectively reduced and the proposed optimization method works well.

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Study on Modeling Methods for Magnetic Field Intensity of Submarine Cables Based on WCA-SVM

Songbo¹,

Chen²,

Hai³

et al. 2020

2020 2nd International Conference on Artificial Intelligence and Advanced Manufacture (AIAM)

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Development of submarine cable hydrodynamic loads calculation program using MATLAB

Cited by 3 publications

References 7 publications

Experimentally validated simplified prediction model of unloaded spar-buoy wave energy converter motions’ responses in waves

Experimentally validated simplified prediction model of unloaded spar-buoy wave energy converter motions’ responses in waves

Hanger forces optimization of ground test device on deployable structure

Study on Modeling Methods for Magnetic Field Intensity of Submarine Cables Based on WCA-SVM

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