ISO-9089-1989.pdf

INTERNATIONAL STANDARD IS0 9089 First edition 1989-12-01 - - -w-m-.-_ -_ -.-. - - - - -_- -. _ -.-_ - . I _- -_. .-._ ._ ._- - . . - - -_ Marine structures - Mobile offshore units - Anchor winches Structures maritimes - Unit their profile shall be in accordance with IS0 6482. When warping ends are specified, the purchaser shall state whether the drum is to be declutchable. If only one warping end is specified, its position (right or left) shall also be stated in the order. 5.5 Cable-lifters The cable-lifters shall have at least five snugs. The width of the groove shall be sufficient for a kenter- type joining shackle, but it shall not exceed I,6 times the normal chain diameter. 5.6 Wire-rope drums The ratio between the drum core and wire rope di- ameter shall not be less than 15. If the winch is not equipped with a spooling system, the drum flanges shall protrude at least I,5 times the wire diameter beyond the top layer of wire rope on the drum. The fastening of the wire rope to the drum shall have a strength of about 0,25 times the breaking strength of the anchor line, unless otherwise agreed by manufacturer and the wire purchaser. Provision shall be made for easy manual removal of the wire rope from the drum. 5.7 Guide sheaves Guide sheaves for chain cable with snugs shall comply with the requirements given for cable-lifters in 5.5. Guide sheaves for chain cable without snugs shall be specially considered in each case. Guide sheaves for wire rope shall have a minimum diameter of 20 times the wire rope diameter. 5.8 Calculations Dynamic effects due to sudden start and stop shall be closely considered when the stresses are deter- mined. For elements subjected to loads with a low number of load cycles, an analysis of nominal stresses is sufficient to determine the strength. When the number of load cycles exceeds 10000, due consideration shall be given to stress concentration factors, the load spectrum, etc., to determine the fa- tigue stresses. 5.9 Allowable stresses The anchor winch shall be constructed in such a way that no stress calculated by simple elastic theory occurs which exceeds 0,9 times material 0,2 % proof stress, when subjected to a static load equal to the breaking strength of the anchor line. Stress so calculated in the brake systems or parts being exposed to load during braking shall not ex- ceed 0,85 times the material 0,2 % proof stress during such loads. When emergency release is effected, the stresses shall not result in permanent deformation in any part. The yield stress shall not be assumed higher than 0,8 times the minimum breaking strength of the ma- terial. Components liable to fatigue shall be designed for at least IO years life. 5.10 Drive equipment 510.1 Electrical drives and control equipment shall conform to the requirements of IEC 92. 5.10.2 Hydraulic drives and control equipment shall conform to the requirements of IS0 4413. Systems nominal pressure shall be selected from IS0 2944. 6 Acceptance tests All winches shall be subjected to the following tests at the workshop or on board: functio n of clutches, brakes, chain or wire rope stoppe rs, etc.; ) calibration of instruments for tension, length, and speed; ) no-load test at nominal speed for 30 min in each direction, with checks for leakages, bearing tem- perature and abnormal noise; d) test of maximum hauling tension. In addition, one winch of each type shall be tested Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 19:45:27 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 9089:1989(E) e) the static brake power of the brakes at a torque equal to the braking capacity as specified in 4.2.1; f) residual brake force as defined in 4.2.1; g) holding power of chain or wire rope stopper at a load corresponding to the anchor line breaking strength; g) breaking strength in kilonewtons; h) length of wire rope (if any) or textile rope (if any) in kilometres. For combined anchor lines, the various line ele- ments shall be described beginning at the anchor (see example 2), giving their diameter and breaking strength. h) emergency release at a load corresponding to the anchor line breaking strength. Which tests are to be carried out at the workshop and which on board shall be agreed upon between the manufacturer, purchaser and other parties in- volved. 7 Designation Anchor winches conforming to this International Standard shall be designated as follows: a) denomination: anchor winch; b) the number of this International Standard: IS0 9089; c) type of winch as follows: cu= cable-lifter unit for chain cable, DU= drum unit for rope, TU - - twin drum unit for rope, ccwu = unit with a system where it is not nec- essary to disconnect the chain cable from the rope, DCWU = unit with a system where chain cable IS0 9089 CCWU - L - t-i 83 x 5600189 x 5600 - and rope can be disconnected; I,5 - IL - 440/60 i) number and, where applicable, position of warping-ends: R or L (see 5.4); j) information on motive power: voltage and fre- quency of electric current, or hydraulic fluid pressure and flow rate; k) type of drum connection (add X only if it is declutchable). EXAMPLE 1 Designation of an electric-driven right-hand cable- lifter unit for chain cable of 76 mm diameter and 6 130 kN breaking force, 440 V voltage and 60 Hz frequency: Anchor winch IS0 9089 CU - R - E 76 x 6 130 - 440/60 EXAMPLE 2 Designation of a hydraulic-driven left-hand unit for a continuous anchor line system consisting of 83 mm diameter 5 600 kN breaking force chain cable at the anchor end and 89 mm diameter rope at the other end, of I,5 km length, with one warping end, not declutchable. on the left, 440 V voltage and 60 Hz frequency: Anchor winch d) side of winch according to 3.3: 8 Marking R = right-hand, L = left-hand; e) type of drive: E = electric, H = hydraulic, Anchor winches conforming to this International Standard shall be permanently marked as follows: a) the number of this International Standard: IS0 9089; b) diameter of chain cable and/or wire rope or tex- tile rope in millimetres (see IS0 1704, IS0 2408 and IS0 8369); S= steam; c) breaking strength in kilonewtons; f) diameter of chain cable and/or wire rope or tex- tile rope in millimetres (see IS0 1704, IS0 2408 and IS0 8369); d) length of wire rope (if any) or textile rope (if any) in kilometres. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 19:45:27 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 9089:1989(E) For combined anchor lines, the various line ele- ments shall be described beginning at the anchor (see example 2), giving their diameter and breaking strength. d) EXAMPLE 1 b) length of wire rope; c) static brake force for each brake (first layer); An anchor winch meeting conditions as for desig- nation example 1 shall be marked: IS0 9089 76 x 6130 EXAMPLE 2 An anchor wi nch meeting conditions as for desig- nati on exampl e2 shall be marked: IS0 9089 83 x 5600/89 x 560091,5 9 Documentation 9.1 Workshop certificate A workshop certificate documenting the following specifications shall be delivered with each winch: a) d iameter and 0 r wire rope; breaking strength of chain cable holding layer); force for chain or wire rope stopper (first e) dynamic brake capacity; 9 residual brake force; g) maximum hauling force at no speed; h) hauling capacity at the various speed ranges. 9.2 Instructions for use and maintenance All information for correct installation, safe use and necessary maintenance of the winches shall be contained in an instruction manual. In addition to the specifications given in the work- shop certificate, the instructions shall describe the function of the winch, and give procedures for normal and emergency operations. 5 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 19:45:27 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 9089:1989(E) - -_I_- -1 _.- -I_ - -. -.I .-.- - -.-I - _- - -_-.- - -_ - - . - .- -.-.- UDC 629.124.79.015.64:626.022 Descriptors: shipbuilding, offshore platforms, ships anchors, winches, windlasses, specifications, designation, marking. Price based on 5 pages - me- -.- - . - - -.-.-.-_-.-.-.-.-I - - - - _ Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 19:45:27 MDTNo reproduction or networking permitted without license from IHS -,-,-