Basic design of a series propeller with vibration consideration by genetic algorithm

Chen, Jeng-Horng; Shih, Yu Shan

doi:10.1007/s00773-007-0249-6

Cited by 31 publications

(14 citation statements)

References 2 publications

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“…This phenomenon can be understood by reviewing lifting line theory in . Although the thrust was increase in rotational speed, the torque also shows the same behavior Chen and Shih,(2007). In electrical point of view, this torque represents the shaft torque of the motor.…”

Section: Introductionmentioning

confidence: 78%

Autonomous Underwater Vehicle Propeller Simulation using Computational Fluid Dynamic

Husaini¹,

Samad²,

Arshad³

2011

Computational Fluid Dynamics Technologies and Applications

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Section: Introductionmentioning

confidence: 78%

Autonomous Underwater Vehicle Propeller Simulation using Computational Fluid Dynamic

Husaini¹,

Samad²,

Arshad³

2011

Computational Fluid Dynamics Technologies and Applications

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“…Chen and Shih [8] used a genetic algorithm to design a series propeller considering the optimisation of both hydrodynamic efficiency and vibration. This way, the relative importance of each one in the objective function was freely weighted.…”

Section: Introductionmentioning

confidence: 99%

Marine propeller parametric optimisation and matching to electric motor

Marques

Belchior

Caprace

2019

J Braz. Soc. Mech. Sci. Eng.

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There is still room to establish a methodology to optimise marine propellers, considering design requirements of the vessel, and match it to an electric motor. The method proposed herein consists in an optimisation whose objective function is power required in the electric motor shaft, and design variables are the parameters of Wageningen B-screw series propellers. A differential evolution optimisation algorithm was programmed in MATLAB environment to assess a number of propeller designs. Technical constraints of strength, cavitation, and peripheral velocity were considered. An actual ferryboat designed to operate in a lake in southeastern Brazil is proposed as the case study. The worst individual of the final population of propellers had its objective function increased by 25%, compared with the worst individual of the initial population, within only 123 s processing time. Substantially dissimilar propeller designs were found for direct and geared drive with open water propeller efficiency between 36.18 and 40.49%. The approach has shown significant gains as an early-stage design tool and highlighted the need for exploring a broad range of propellers to find the optimal motor-propeller matching.

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“…In these studies (Dylejko et al., 2007; Merz et al., 2010; Song et al., 2014), the propeller is often simplified as a rigid concentrated mass; thus the elasticity of the propeller cannot be taken into consideration. Some previous works (Loewy and Khadert, 1984; Chen and Shih, 2007; Kim and Lee, 2012) have indicated that elastic blades subjected to a broad excitation would inevitably result in an axial force of the propeller’s first natural frequency.…”

Section: Introductionmentioning

confidence: 99%

Application of a dynamic antiresonant vibration isolator to minimize the vibration transmission in underwater vehicles

Liu

Yin

et al. 2017

Journal of Vibration and Control

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Harmonic axial force resulting from a propeller’s first vibration mode is a major cause of tonal sound radiation of an underwater vehicle. To reduce the harmonic force, we employ a dynamic antiresonant vibration isolator (DAVI) in parallel with thrust bearing of the shafting system to attenuate vibration transmitted to the hull. The methods of transfer matrices and substructure synthesis are used to create a semi-analytical dynamic model of the propeller–shaft–hull system with DAVI. In this model, the elastic properties of the propeller and foundation are taken into consideration. The force transmissibility and power flow are then used to evaluate the isolation performance of the DAVI. For the purpose of comparison, a resonance changer (RC) proposed in the published literature is also used to reduce the axial vibration transmission. It is demonstrated numerically that by using DAVI, the vibration and power flow of the underwater vehicle are greatly attenuated at the designed frequency without obviously changing the axial fundamental resonance frequency of the shafting system, which is superior to the RC isolator.

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Basic design of a series propeller with vibration consideration by genetic algorithm

Cited by 31 publications

References 2 publications

Autonomous Underwater Vehicle Propeller Simulation using Computational Fluid Dynamic

Autonomous Underwater Vehicle Propeller Simulation using Computational Fluid Dynamic

Marine propeller parametric optimisation and matching to electric motor

Application of a dynamic antiresonant vibration isolator to minimize the vibration transmission in underwater vehicles

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