SE8903683D0 - ROLLING DUMPING SYSTEM - Google Patents

ROLLING DUMPING SYSTEM

Info

Publication number
SE8903683D0
SE8903683D0 SE8903683A SE8903683A SE8903683D0 SE 8903683 D0 SE8903683 D0 SE 8903683D0 SE 8903683 A SE8903683 A SE 8903683A SE 8903683 A SE8903683 A SE 8903683A SE 8903683 D0 SE8903683 D0 SE 8903683D0
Authority
SE
Sweden
Prior art keywords
rudder
roll
phi
ship
signals
Prior art date
Application number
SE8903683A
Other languages
Swedish (sv)
Other versions
SE8903683L (en
SE465029B (en
Inventor
C Kaellstroem
Original Assignee
Sspa Maritime Consulting Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sspa Maritime Consulting Ab filed Critical Sspa Maritime Consulting Ab
Priority to SE8903683A priority Critical patent/SE465029B/en
Publication of SE8903683D0 publication Critical patent/SE8903683D0/en
Priority to PCT/SE1990/000709 priority patent/WO1991006466A1/en
Priority to AU67114/90A priority patent/AU6711490A/en
Publication of SE8903683L publication Critical patent/SE8903683L/en
Publication of SE465029B publication Critical patent/SE465029B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Feedback Control In General (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

System for reducing wave and wind induced roll motion of a ship intended to be connected into the regular control system of the ship comprising a rudder motor (SG) for driving the rudder of the ship, which rudder is used both as steering means and for generating a rolling moment, said system comprising a central unit (C) which receives rudder angle signals from a steering wheel (H) and which central unit emits rudder driving signals to the rudder motor (SG) in response to said control and rudder angle signals. The central unit (C) comprises a roll sensor (RS) for generating a roll angle velocity signal ( PHI ) which is brought to an adaptive discrete filter (F) for generation of reconstructed state variables for sampled roll angle velocity ( PHI (n)) and sampled roll acceleration ( PHI (n)) which by reconstruction in the filter estimated state variables ( PHI (n), PHI (n)) are transferred to a predicting regulator (RG) for the rudder angle whereby said regulator in response to the filtered roll angle velocity signals generates a rudder driving signal to the rudder motor (SG) which gives the ship a roll moment of such amplitude and phase that the roll moment induced by wind and waves of the ship is substantially neutralized.
SE8903683A 1989-11-03 1989-11-03 ROLL ATTACKING SYSTEM SE465029B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8903683A SE465029B (en) 1989-11-03 1989-11-03 ROLL ATTACKING SYSTEM
PCT/SE1990/000709 WO1991006466A1 (en) 1989-11-03 1990-11-02 Roll damping system
AU67114/90A AU6711490A (en) 1989-11-03 1990-11-02 Roll damping system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8903683A SE465029B (en) 1989-11-03 1989-11-03 ROLL ATTACKING SYSTEM

Publications (3)

Publication Number Publication Date
SE8903683D0 true SE8903683D0 (en) 1989-11-03
SE8903683L SE8903683L (en) 1991-05-04
SE465029B SE465029B (en) 1991-07-15

Family

ID=20377376

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8903683A SE465029B (en) 1989-11-03 1989-11-03 ROLL ATTACKING SYSTEM

Country Status (3)

Country Link
AU (1) AU6711490A (en)
SE (1) SE465029B (en)
WO (1) WO1991006466A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3030185B2 (en) * 1993-03-11 2000-04-10 三洋電機株式会社 Digital servo device
DE4420798C2 (en) * 1994-06-16 1996-10-02 Barbara Catrin Parr Self steering system for water vehicles
EP1917181B1 (en) 2005-08-22 2014-03-12 Technology Investment Company PTY Ltd. Stabilising means
EP1873055A1 (en) * 2006-06-30 2008-01-02 Technische Universiteit Delft Ship with bow control surface
RU2531999C1 (en) * 2013-03-01 2014-10-27 Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук Hydrofoil ship faultless careen abatement
EP3782897A1 (en) * 2019-08-22 2021-02-24 Siemens Gamesa Renewable Energy A/S Control system for stabilizing a floating wind turbine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380206A (en) * 1981-03-25 1983-04-19 The United States Of America As Represented By The Secretary Of The Navy Ship roll stabilization system

Also Published As

Publication number Publication date
SE8903683L (en) 1991-05-04
AU6711490A (en) 1991-05-31
WO1991006466A1 (en) 1991-05-16
SE465029B (en) 1991-07-15

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