On Steering Qualities of Ships (2)

Nomoto, Kensaku; Taguchi, Kenshi

doi:10.2534/jjasnaoe1952.1957.101_57

Cited by 50 publications

(9 citation statements)

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“…Nomoto [36,37] studied the problem of ship maneuverability from the viewpoint of control engineering based on the linear equation of ship maneuverability motion and regarded the various maneuvering motions caused by changing the rudder angle as the response of the output maneuvering motion to the input rudder angle. In addition, a secondorder maneuvering motion equation was derived, which was also called K. Nomoto's model.…”

Section: Brief Description Of K and T Indices Empirical Methods For S...mentioning

confidence: 99%

The Effect of Hull Form Parameters on the Hydrodynamic Performance of a Bulk Carrier

Rui

Wang

et al. 2021

JMSE

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In this study, the effect of joint optimization of the principal dimensions and hull form on the hydrodynamic performance of a bulk carrier was studied. In the first part of the joint optimization process, fast principal-dimension optimization of the origin parent ship considering the integrated performance of ship resistance, seakeeping, and maneuverability, as well as their relationships with the principal dimensions were analyzed in detail based on the ship resistance, seakeeping qualities, and maneuverability empirical methods of Holtrop and Mennen, Bales, and K and T indices, respectively. A new parent ship was chosen from 496 sets of hulls after comprehensive consideration. In the remaining part, a further hull form optimization was performed on the new parent ship according to the minimum wave-making resistance. The obtained results demonstrate that: (a) For the case in which the principal dimension of the original parent-type ship is different from that of the owner’s target ship, within the bounds of the relevant constraints from the owner, an excellent parent ship can be obtained by principal-dimension optimization; (b) the joint optimization method considering the principal dimension and hull form optimization can further explore the optimization space and provide a better hull.

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Section: Brief Description Of K and T Indices Empirical Methods For S...mentioning

confidence: 99%

The Effect of Hull Form Parameters on the Hydrodynamic Performance of a Bulk Carrier

Rui

Wang

et al. 2021

JMSE

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“…It has excellent tactical and technical characteristics: small displacement, invisibility to radar, high maneuverability (mobility), high speed, etc. [5]- [7]This type of platform is also known as USV (Unmanned Surface Vehicle).…”

Section: Drones/surface Platforms 21 Introductory Notes Overviewmentioning

confidence: 99%

State of the Art - Drones/Surface Platforms and Green Energy

Popa,

Popescu,

Mocanu

2023

IOP Conf. Ser.: Earth Environ. Sci.

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This paper presents a summary of what surface drones mean and the possibility of using these platforms in pollution problems. Also, in this paper, the authors have proposed to predict (in the form of a review) the possibility of producing the electricity needed for these platforms with the help of photovoltaic panels and the storage of energy in different types of batteries. This paper is a summary of what drones/surface platforms entail, the production of electricity using photovoltaic panels and an overview of battery types.

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“…A common feature of the aforementioned studies [3]- [18], [22]- [27], [37]- [43] is that the adaptive controllers are designed based on ship steering linear model of Nomoto [44], and extension nonlinear models of Norrbin [45], Bech [46] and Nomoto [47]. The main reason lies in the fact that these models are said to be in SISO strict-feedback form [48].…”

Section: Introductionmentioning

confidence: 99%

Direct Adaptive Neural Network Control for Ship Manoeuvring Modelling Group Model-Based Uncertain Nonlinear Systems in Non-Affine Pure-Feedback Form

Wang

Soares

2020

IEEE Access

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In this article, a direct neural network based adaptive backstepping control approach is proposed for a class of uncertain non-affine ship manoeuvring pure-feedback nonlinear systems. To carry out the backstepping design, the high fidelity 3 degrees of freedom Manoeuvring Modelling Group (MMG) model with external disturbances is transformed into the ship manoeuvring systems in non-affine pure-feedback form. Then, by combing the Implicit Function Theorem, Mean Value Theorem and dynamic surface control technique, the proposed approach is able to avoid completely the circularity problem and complexity growing problem exist in the adaptive neural network controller. During the controller design, the uncertain nonlinear functions are approximated by neural networks. Following this control approach, it is worth noting that the direct adaptive backstepping control for the high fidelity MMG model based ship manoeuvring nonlinear systems is achieved firstly, and the controller structure is simpler. Furthermore, it is shown via stability analysis that all signals in the closed-loop system are uniformly ultimately bounded. At last, two reference signals consist of a constant and a realistic performance requirement of ship are applied to simulation studies to illustrate the utility and merits of the proposed control scheme. INDEX TERMS Ship manoeuvring, Manoeuvring Modelling Group (MMG) model, non-affine purefeedback nonlinear system, adaptive neural network control, backstepping design.

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On Steering Qualities of Ships (2)

Cited by 50 publications

References 0 publications

The Effect of Hull Form Parameters on the Hydrodynamic Performance of a Bulk Carrier

The Effect of Hull Form Parameters on the Hydrodynamic Performance of a Bulk Carrier

State of the Art - Drones/Surface Platforms and Green Energy

Direct Adaptive Neural Network Control for Ship Manoeuvring Modelling Group Model-Based Uncertain Nonlinear Systems in Non-Affine Pure-Feedback Form

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