Design ride control system using two stern flaps based 3 DOF motion modeling for wave piercing catamarans with beam seas

Liang, Lihua; Yuan, Jia; Zhang, Songtao; Shi, Huaizhong; Liu, Yanwen; Zhao, Peng

doi:10.1371/journal.pone.0214400

Cited by 6 publications

(3 citation statements)

References 30 publications

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“…In this study, dynamic fluid body interaction (DFBI) 6degrees-of-freedom (6 DOF) models were used but only 2 DOF were required for simulating the real motion of the HWAV (Liang et al, 2019). Thus, except for the heave and pitch, the other 4 DOF were locked.…”

Section: Vof Methods and Wall Y +mentioning

confidence: 99%

Influence of a walking mechanism on the hydrodynamic performance of a high-speed wheeled amphibious vehicle

Feng

et al. 2023

Mech. Sci.

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Abstract. In order to reduce the resistance and increase speed for a high-speed wheeled amphibious vehicle, a wheel-retracting mechanism was applied to a walking mechanism and the influence was researched. Firstly, to obtain a reliable numerical method, a realizable shear stress transport (SST) k-ω turbulence model and computational fluid dynamic (CFD) model built by an overset mesh technique was used and compared with the corresponding model tests. Secondly, the effect of the wheels' flip angle on resistance, heave and pitch was investigated. Then, the wheel well was optimized by numerical simulation. Finally, the results showed that the influence of the wheels on resistance was more significant, and the larger the wheels' flip angle was, the more significant the resistance reduction would be. An optimized wheel well was beneficial to resistance reduction. Furthermore, the running attitude became steadier, thereby decreasing the heave and pitch.

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Section: Vof Methods and Wall Y +mentioning

confidence: 99%

Influence of a walking mechanism on the hydrodynamic performance of a high-speed wheeled amphibious vehicle

Feng

et al. 2023

Mech. Sci.

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“…In Lihua Liang et al [27], a ride control system (RCS) based on linear quadratic regulator (LQR) and genetic algorithm (GA) functionality is proposed to minimise wave penetrating catamarans (WPC) heave, roll and pitch modulation in beam waves (3 degrees of freedom geometry (3 DOF motion)). For the WPC vessel, a robust 3 DOF ride regulation model is expected, consisting of the coupling and separating interactions between spatial and transverse motion.…”

Section: Introductionmentioning

confidence: 99%

Vibration Control for a Coupled Pitch- roll Ship Model Via a Negative Cubic Velocity Feedback Control

Amer

Bahnasy

Elmhalawy

2021

Journal of Engineering Research

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One of the most essential ship reactions to waves is roll motion. Due to the intricacy of ship wave interactions and their sensitivity, predicting such a reaction is extremely challenging. Because vibration motion is an undesirable occurrence, it must be removed, decreased, or controlled. A coupled Pitch-roll ship model with negative cubic velocity feedback control subjected to parametric excitations is premeditated and solved in this paper. The method of multiple time scales is applied to scrutinize the response of the two modes of the system neighbouring the simultaneous sub-harmonic, and internal resonance situation. Besides, the steady-state solution is determined through the Rung-Kutta Method (RKM) of fourth order. Stability of the steady state solution near this resonance case is discussed and studied applying Lyapunov's first indirect method and Routh-Hurwitz criterion. The influences of the different parameters on thesteady state solution are reconnoitred and discussed. The controller effects on the stability are clarified. Simulation results are accomplished with the help of MATLAB and Maple software programs.

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“…The combination of stern flaps and transom stern can improve the wake flow field and reduce energy loss and wavemaking resistance [10]- [12]. Amacher performed simulation and model test showing that stern flaps mounted on a barge could reduce the wave energy by half, which reduces the damage to a river bank [13].…”

Section: Introductionmentioning

confidence: 99%

Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle

Sun

Wang

2020

IEEE Access

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In order to reduce the resistance and increasing speed for a caterpillar track amphibious vehicle (CTAV), the stern flaps were applied and the influence was researched. Numerical simulations performed by STAR-CCM+ and model towing test reveal that stern flaps have greatly reduced the resistance, trim, and sinkage of the CTAV when the length Froude number is between 0.63 and 1.05. The length and flap angle were optimized by numerical simulation. In addition, the residual resistance plays a dominant role in resistance reduction, which contributes to more than 90% of the total resistance reduction. Installing stern flaps increase the vehicle waterline by 7% and enhance the virtual-length effect. Furthermore, the running attitude becomes steadier, thereby decreasing the trim and sinkage. Therefore the resistance performance of the CTAV can be enhanced by installing stern flaps with a proper length at an optimal flap angle. INDEX TERMS Caterpillar track amphibious vehicle, CFD, resistance performance, running attitude, STAR-CCM+.

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Design ride control system using two stern flaps based 3 DOF motion modeling for wave piercing catamarans with beam seas

Cited by 6 publications

References 30 publications

Influence of a walking mechanism on the hydrodynamic performance of a high-speed wheeled amphibious vehicle

Influence of a walking mechanism on the hydrodynamic performance of a high-speed wheeled amphibious vehicle

Vibration Control for a Coupled Pitch- roll Ship Model Via a Negative Cubic Velocity Feedback Control

Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle

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