Spring-loaded winch band brakes as tools to improve safety during mooring operations on ships

• Autorzy: Iglesias-Baniela S. , Pérez-Canosa J. M. , Cid-Bacorelle D.

Identyfikatory

DOI

10.12716/1001.14.03.25

• Języki publikacji: EN

Abstrakty

EN

Some recent accident reports involving large vessels in mooring operations or breaking away from their moorings conclude that brakes of mooring winches do not render before line parts. As the potential loss of life is high, the utmost attention on-board must be paid to minimise this inherent risk. When the load on the mooring lines becomes overloaded beyond the pre-set levels, mooring winches band brakes have the safety function of rendering and allowing the line to shed this load before its potential breaking and the subsequent snap-back. As a preventive measure against breaking, the pre-set level, known as Brake Holding Capacity (BHC), must be below the Minimum Breaking Load (MBL) of the line. In this paper, the authors analyse concerns that can arise from those with conventional screw manually-applied band brakes regarding their BHC reliability. Thus, in order to improve safety, the advantages of the spring-applied band brakes with manual setting and release or with hydraulic release are highlighted. Finally, the paper shows a typical procedure using a hydraulic jack for brake testing the winch of a Liquefied Natural Gas (LNG) ship to fix their BHC in order to hold 60% of the MBL of the mooring line.

Słowa kluczowe

EN

berthing operations; winch band brakes; mooring operations; brake holding capacity; minimum breaking load; Liquefied Natural Gas; LNG; Hydraulic Release; mooring line

• Wydawca: Faculty of Navigation, Gdynia Maritime University
• Czasopismo: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
• Rocznik: 2020
• Tom: Vol. 14. no. 3
• Strony: 711--719
• Opis fizyczny: Bibliogr. 16 poz., rys., fot.

Twórcy

autor

Iglesias-Baniela S.

• University of A Coruña, A Coruña, Spain

autor

Pérez-Canosa J. M.

• University of A Coruña, A Coruña, Spain

autor

Cid-Bacorelle D.

• Navantia Ship Repairs Fene-Ferrol, Fene, Spain

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)