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Journal Article•DOI•

Experimental investigation on the effects of froude number on manoeuvring characteristic of a research vessel

Kunal Tiwari1, Akhil Balagopalan1, Parameswaran Krishnankutty1•
Indian Institute of Technology Madras1
23 Sep 2020-Ships and Offshore Structures (Informa UK Limited)-pp 1-12
TL;DR: Oceanographic research vessels (ORVs) are used to collect ocean data and analyse them to understand the physical, chemical and biological characteristics of seawater, seabed and other ocean-related...
Abstract: Oceanographic research vessels (ORVs) are used to collect ocean data and analyse them to understand the physical, chemical and biological characteristics of seawater, seabed and other ocean-related...
Citations
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Journal Article•DOI•
Dynamic positioning of an oceanographic research vessel using fuzzy logic controller in different sea states

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Kunal Tiwari1, Parameswaran Krishnankutty1•
Indian Institute of Technology Madras1
10 Sep 2021
TL;DR: In this paper, the performance of a proportional derivative type fuzzy controller with Mamdani interface scheme for dynamic positioning of an oceanographic research vessel (ORV) by numerical simulation is investigated.
Abstract: A dynamic positioning (DP) system is a computer-controlled system which maintains the positioning and heading of ship by means of active thrust. A DP system consist of sensors, observer, controller and thrust allocation algorithm. The purpose of this paper is to investigate the performance of proportional derivative type fuzzy controller with Mamdani interface scheme for dynamic positioning of an oceanographic research vessel (ORV) by numerical simulation. Nonlinear passive observer is used to filter the noise from the position and orientation. A nonlinear mathematical model of the ORV is subjected to the wave disturbance ranging from calm to phenomenal sea. Robustness and efficiency of the fuzzy logic controller is analysed in comparison with the multivariable proportional integral derivative (PID) and the linear quadratic regulator (LQR) controller. A simplified constrained linear quadratic algorithm is used for thrust allocation. The frequency response of the closed loop system with different controllers is analysed using the bode plot. The stability of controller is established using the Lyapunov criteria.

2 citations

Prediction of the manoeuvring forces on a slender ship using slender body theory. Part II: towing tank tests using planar motion mechanism

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J.F. Wellicome, Philip A. Wilson, X. Cheng
01 Jan 1994

1 citations

References
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Principles Of Naval Architecture

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Angelika Bayer
01 Jan 2016
TL;DR: The principles of naval architecture is universally compatible with any devices to read and is available in the digital library an online access to it is set as public so you can get it instantly.
Abstract: Thank you very much for downloading principles of naval architecture. Maybe you have knowledge that, people have look hundreds times for their favorite readings like this principles of naval architecture, but end up in harmful downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they juggled with some malicious virus inside their desktop computer. principles of naval architecture is available in our digital library an online access to it is set as public so you can get it instantly. Our books collection saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Merely said, the principles of naval architecture is universally compatible with any devices to read.

47 citations

"Experimental investigation on the e..." refers methods in this paper

  • ...Ogawa and Kasai (1978) used a similar approach but divided the force in three parts. The hull forces were modelled as unknown derivatives and propeller and rudder forces were modelled from the first principal. Fossen (1994) composed the same equation into standard format of mass spring damper system which made it easy to understand and analyse the complex system....

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  • ...Ogawa and Kasai (1978) used a similar approach but divided the force in three parts. The hull forces were modelled as unknown derivatives and propeller and rudder forces were modelled from the first principal. Fossen (1994) composed the same equation into standard format of mass spring damper system which made it easy to understand and analyse the complex system. In this paper, we are using a slightly modified version of mathematical model proposed by Fossen. An estimation of hydrodynamic derivatives for a mariner vessel was done by Strom-Tejsen (1966) using planar motion mechanism (PMM)....

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  • ...However, a comprehensive analysis of how hydrodynamic derivatives change with different speed was not presented. Same ship was used to further investigate the variation in PMM forces at different speed (Wellicome et al. 1994). Speed effects on hydrodynamic derivatives were unattended by researchers for a quite long time. Kazerooni and Seif (2017) studied effect of Froude number on resistance and sway-related hydrodynamic derivatives (Yv̇ , Yv). Static drift test was employed for estimation of these derivatives. Variation in these derivatives for plotted for Froude number ranging from 0.4 to 2. Rameesha and Krishnankutty (2018) studied variation in hydrodynamic derivatives with Froude number for s175 container....

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  • ...However, a comprehensive analysis of how hydrodynamic derivatives change with different speed was not presented. Same ship was used to further investigate the variation in PMM forces at different speed (Wellicome et al. 1994). Speed effects on hydrodynamic derivatives were unattended by researchers for a quite long time. Kazerooni and Seif (2017) studied effect of Froude number on resistance and sway-related hydrodynamic derivatives (Yv̇ , Yv)....

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  • ...Ogawa and Kasai (1978) used a similar approach but divided the force in three parts....

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A model testing technique and method of analysis for the prediction of steering and manoeuvring qualities of surface vessels

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M S Chislett, J Strom-Tejsen
01 Jan 1966

37 citations

"Experimental investigation on the e..." refers methods in this paper

  • ...An estimation of hydrodynamic derivatives for a mariner vessel was done by Strom-Tejsen (1966) using planar motion mechanism (PMM)....

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Journal Article•DOI•
Manoeuvring prediction of pusher barge in deep and shallow water

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Adi Maimun1, Agoes Priyanto1, Andi Haris Muhammad1, C. C. Scully1, Zobair Ibn Awal1 •
Universiti Teknologi Malaysia1
01 Aug 2011-Ocean Engineering
TL;DR: In this article, the authors present an experimental investigation on the manoeuvring characteristics of a pusher-barge system for deep (H/d>3) and shallow water (h/d=1.3) conditions.

23 citations

"Experimental investigation on the e..." refers methods in this paper

  • ...Maimun et al. (2011) estimated the hydrodynamic derivatives using PMM for pusher barge....

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Journal Article•DOI•
Experimental and numerical investigations of advancing speed effects on hydrodynamic derivatives in MMG model, part I: Xvv,Yv,Nv

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Chenliang Zhang1, Xiaojian Liu, Decheng Wan1, Jinbao Wang•
Shanghai Jiao Tong University1
01 May 2019-Ocean Engineering
TL;DR: In this paper, experimental and numerical studies on the hydrodynamic forces and moments of the ONR Tumblehome (ONRT) hull during oblique towing tests are performed.

20 citations

"Experimental investigation on the e..." refers background in this paper

  • ...(4) Nv is one of the derivative investigated in Zhang et al. (2019)....

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  • ...The most recent literature featuring speed study was (Zhang et al. 2019)....

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  • ...(4) Nv is one of the derivative investigated in Zhang et al. (2019). As As, Fr reduces Nv increases, advance increases....

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The Prediction of ship's manoeuvring performance In initial design stage

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Ho-Young Lee, Sang-Sung Shin
01 Jan 1998
TL;DR: In this article, the PMM tests and rudder open water tests were carried out for 19 models of low-speed blunt ship with stern bulb and horn type rudder and the results of present study have been compared with those of Kijima's form ulae and PMM model tests.
Abstract: Most of fuel the economic hull forms, nowadays, have stern bulbs at their afterbodies. The adoption of ste~n bulb, even though good for the vessel's propulsion performance, has been known to deteriorate the course keeping stability of a vessel. The change of the concept of stern hull form requires the m odification of the em pirical form ulae of various hull-oriented hydrodynamic derivatives used in the manoeuvring prediction programs. In this study, PMM(Planar Motion Mechanism) tests and rudder open water tests were carried out for 19 models of low-speed blunt ship with stern bulb and horn type rudder. The MMG model has been used as a basic mathematical model for manoeuvring equation. Then the regression analyses were performed using selected principal parameters. The results of present study have been compared with those of Kijima's form ulae and PMM model tests. From those, It is found that the present prediction give improvement of prediction for ship's directional stability.

17 citations

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