Dynamic Effect Research of Cable-Lead-In Rod on Towed System

Wang, Fei; Tu, Weimin; Deng, De-heng; Wu, Xinping

doi:10.1007/s12204-019-2135-x

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…In 2019, Deng et al [16] established the fluid-structure coupling dynamic model of a wave-driven ship and oscillating hydrofoil in a still water environment, and analysed the hydrodynamic performance of a wave-driven ship by programming the multi-body dynamic equation into CFD software FLUENT. The heave and pitch motions of the hull with different amplitudes and periods were simulated by the software, the propulsion force and torque generated by the oscillating hydrofoil were calculated to solve the multi-body dynamic equation, and the thrust generated by the hydrofoil under different amplitudes and periods was simulated and analysed.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic Analysis of Self-Propulsion Performance of Wave-Driven Catamaran

Zhang

Liao

et al. 2021

JMSE

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The wave-driven catamaran is a small surface vehicle driven by ocean waves. It consists of a hull and hydrofoils, and has a multi-body dynamic structure. The process of moving from static state to autonomous navigation driven by ocean waves is called “self-propulsion”, and reflects the ability of the wave-driven catamaran to absorb oceanic wave energy. Considering the importance of the design of the wave-driven catamaran, its self-propulsion performance should be comprehensively analysed. However, the wave-driven catamaran’s multi-body dynamic structure, unpredictable dynamic and kinematic responses driven by waves make it difficult to analyse its self-propulsion performance. In this paper, firstly, a multi-body dynamic model is established for wave-driven catamaran. Secondly, a two-phase numerical flow field containing water and air is established. Thirdly, a numerical simulation method for the self-propulsion process of the wave-driven catamaran is proposed by combining the multi-body dynamic model with a numerical flow field. Through numerical simulation, the hydrodynamic response, including the thrust of the hydrofoils, the resistance of the hull and the sailing velocity of the wave-driven catamaran are identified and comprehensively analysed. Lastly, the accuracy of the numerical simulation results is verified through a self-propulsion test in a towing tank. In contrast with previous research, this method combines multi-body dynamics with computational fluid dynamics (CFD) to avoid errors caused by artificially setting the motion mode of the catamaran, and calculates the real velocity of the catamaran.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic Analysis of Self-Propulsion Performance of Wave-Driven Catamaran

Zhang

Liao

et al. 2021

JMSE

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Lumped Mass Model for Flexible Cable: A Review

Chen

Hong

Lin

et al. 2021

J. Phys.: Conf. Ser.

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Model of a flexible cable plays a great role in the applications of underwater towing system, mooring line system, etc. A complete mathematical model is a basis to accurately describe the dynamic characteristics of flexible cable. This article presents a state of art comprehensive review of lumped mass model. First, the mathematical principle of the lumped mass model, including geometric simplification, force analysis, and solution, are systematically summarized.Second, the dynamic response of cable under different boundary conditions is introduced, and boundary conditions are categoried. Third, the numerical solution of the lumped mass model are assessed. Finally, based on the application of guide dog robot, the authors discussed the research future and trends. The authors aim to ealize human-robot interaction through a flexible cable.

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Dynamic Effect Research of Cable-Lead-In Rod on Towed System

Cited by 2 publications

References 10 publications

Hydrodynamic Analysis of Self-Propulsion Performance of Wave-Driven Catamaran

Hydrodynamic Analysis of Self-Propulsion Performance of Wave-Driven Catamaran

Lumped Mass Model for Flexible Cable: A Review

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