Roll reduction by rubber control for two ships during underway replenishment

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A theoretical method for analyzing roll reduction by rudder control for ships during underway replenishment is developed. The basic idea is that, when the rudder is operating, yaw and roll moments will be generated that affect the rolling motion. This idea has been proven to be valid for a single ship running in waves and, therefore, is also applied in the present paper. Using the well-developed strip theory for two ships advancing in waves, a better set of gain coefficients for roll reduction by rudder control can be predicted a priori. From the present results, it is found that suitable rudder control indeed can reduce rolling motion especially at the resonance frequency. The results obtained by the present method can offer some valuable information for a roll-reducing autopilot. Rudder control therefore can be considered as another tool for reducing rolling motion while two ships are executing underway replenishment at sea.

Original languageEnglish
Pages (from-to)141-150
Number of pages10
JournalJournal of Ship Research
Volume35
Issue number2
Publication statusPublished - 1991 Jun 1

Fingerprint

Rubber
Ship
Ships
Motion
Autopilot
Resonance Frequency
Strip
Valid
Moment
Coefficient

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Numerical Analysis
  • Ocean Engineering
  • Mechanical Engineering
  • Applied Mathematics

Cite this

@article{ec8cc3e7712f47eab45d9735b6760ace,
title = "Roll reduction by rubber control for two ships during underway replenishment",
abstract = "A theoretical method for analyzing roll reduction by rudder control for ships during underway replenishment is developed. The basic idea is that, when the rudder is operating, yaw and roll moments will be generated that affect the rolling motion. This idea has been proven to be valid for a single ship running in waves and, therefore, is also applied in the present paper. Using the well-developed strip theory for two ships advancing in waves, a better set of gain coefficients for roll reduction by rudder control can be predicted a priori. From the present results, it is found that suitable rudder control indeed can reduce rolling motion especially at the resonance frequency. The results obtained by the present method can offer some valuable information for a roll-reducing autopilot. Rudder control therefore can be considered as another tool for reducing rolling motion while two ships are executing underway replenishment at sea.",
author = "Fang, {Ming Chung}",
year = "1991",
month = "6",
day = "1",
language = "English",
volume = "35",
pages = "141--150",
journal = "Journal of Ship Research",
issn = "0022-4502",
publisher = "Society of Naval Architects and Marine Engineers",
number = "2",

}

Roll reduction by rubber control for two ships during underway replenishment. / Fang, Ming Chung.

In: Journal of Ship Research, Vol. 35, No. 2, 01.06.1991, p. 141-150.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Roll reduction by rubber control for two ships during underway replenishment

AU - Fang, Ming Chung

PY - 1991/6/1

Y1 - 1991/6/1

N2 - A theoretical method for analyzing roll reduction by rudder control for ships during underway replenishment is developed. The basic idea is that, when the rudder is operating, yaw and roll moments will be generated that affect the rolling motion. This idea has been proven to be valid for a single ship running in waves and, therefore, is also applied in the present paper. Using the well-developed strip theory for two ships advancing in waves, a better set of gain coefficients for roll reduction by rudder control can be predicted a priori. From the present results, it is found that suitable rudder control indeed can reduce rolling motion especially at the resonance frequency. The results obtained by the present method can offer some valuable information for a roll-reducing autopilot. Rudder control therefore can be considered as another tool for reducing rolling motion while two ships are executing underway replenishment at sea.

AB - A theoretical method for analyzing roll reduction by rudder control for ships during underway replenishment is developed. The basic idea is that, when the rudder is operating, yaw and roll moments will be generated that affect the rolling motion. This idea has been proven to be valid for a single ship running in waves and, therefore, is also applied in the present paper. Using the well-developed strip theory for two ships advancing in waves, a better set of gain coefficients for roll reduction by rudder control can be predicted a priori. From the present results, it is found that suitable rudder control indeed can reduce rolling motion especially at the resonance frequency. The results obtained by the present method can offer some valuable information for a roll-reducing autopilot. Rudder control therefore can be considered as another tool for reducing rolling motion while two ships are executing underway replenishment at sea.

UR - http://www.scopus.com/inward/record.url?scp=0026170264&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026170264&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0026170264

VL - 35

SP - 141

EP - 150

JO - Journal of Ship Research

JF - Journal of Ship Research

SN - 0022-4502

IS - 2

ER -