1、BS ISO 19030-1:2016Ships and marine technology Measurement of changes inhull and propeller performancePart 1: General principlesBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 19030-1:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implem
2、entation of ISO 19030-1:2016.The UK participation in its preparation was entrusted to TechnicalCommittee SME/32, Ships and marine technology - Steeringcommittee.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to inclu
3、de all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 83589 6ICS 47.020.99Compliance with a British Standard cannot confer immunity fromlegal obligations.This Briti
4、sh Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2016.Amendments/Corrigenda issued since publicationDate Text affectedBS ISO 19030-1:2016 ISO 2016Ships and marine technology Measurement of changes in hull and propeller performance Part 1: Gen
5、eral principlesNavires et technologie maritime Mesurage de la variation de performance de la coque et de lhlice Partie 1: Principes gnrauxINTERNATIONAL STANDARDISO19030-1First edition2016-11-15Reference numberISO 19030-1:2016(E)BS ISO 19030-1:2016ISO 19030-1:2016(E)ii ISO 2016 All rights reservedCOP
6、YRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, w
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8、BS ISO 19030-1:2016ISO 19030-1:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 General principles . 24.1 Hull and propeller performance 24.2 Ship propulsion efficiency and total resistance 34.3 Primary parameters when measuring changes in hull and prop
9、eller performance 44.4 Secondary parameters . 54.5 Measurement procedures 54.5.1 General 54.5.2 Data acquisition 64.5.3 Data storage . 64.5.4 Data preparation 65 Performance indicators 65.1 Dry-docking performance: Change in hull and propeller performance following present out-docking as compared wi
10、th the average from previous out-dockings . 75.2 In-service performance: The average change in hull and propeller performance over the period following out-docking to the end of the dry-docking interval . 85.3 Maintenance trigger: Change in hull and propeller performance from the start of the dry-do
11、cking interval to a moving average at any chosen time . 95.4 Maintenance effect: Change in hull and propeller performance measured before and after a maintenance event . 106 Measurement uncertainties and the accuracy of the performance indicators 11Annex A (informative) Method and assumptions for es
12、timating the uncertainty of a performance analyses process 13Bibliography .30 ISO 2016 All rights reserved iiiContents PageBS ISO 19030-1:2016ISO 19030-1:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies)
13、. The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non
14、-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are describ
15、ed in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to t
16、he possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO
17、 list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as w
18、ell as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee SC 2, Marine envir
19、onment protection.A list of all parts in the ISO 19030 series can be found on the ISO website.iv ISO 2016 All rights reservedBS ISO 19030-1:2016ISO 19030-1:2016(E)IntroductionHull and propeller performance refers to the relationship between the condition of a ships underwater hull and propeller and
20、the power required to move the ship through water at a given speed. Measurement of changes in ship specific hull and propeller performance over time makes it possible to indicate the impact of hull and propeller maintenance, repair and retrofit activities on the overall energy efficiency of the ship
21、 in question.The aim of the ISO 19030 series is to prescribe practical methods for measuring changes in ship specific hull and propeller performance and to define a set of relevant performance indicators for hull and propeller maintenance, repair and retrofit activities. The methods are not intended
22、 for comparing the performance of ships of different types and sizes (including sister ships) nor to be used in a regulatory framework.The ISO 19030 series consists of three parts. ISO 19030-1 outlines general principles for how to measure changes in hull and propeller performance and defines a set
23、of performance indicators for hull and propeller maintenance, repair and retrofit activities. ISO 19030-2 defines the default method for measuring changes in hull and propeller performance and for calculating the performance indicators. It also provides guidance on the expected accuracy of each perf
24、ormance indicator. ISO 19030-3 outlines alternatives to the default method. Some will result in lower overall accuracy but increase applicability of the standard. Others may result in same or higher overall accuracy but include elements which are not yet broadly used in commercial shipping.The gener
25、al principles outlined, and methods defined, in the ISO 19030 series are based on measurement equipment, information, procedures and methodologies which are generally available and internationally recognized. ISO 2016 All rights reserved vBS ISO 19030-1:2016BS ISO 19030-1:2016Ships and marine techno
26、logy Measurement of changes in hull and propeller performance Part 1: General principles1 ScopeThis document outlines general principles for the measurement of changes in hull and propeller performance and defines a set of performance indicators for hull and propeller maintenance, repair and retrofi
27、t activities.The general principles outlined and performance indicators defined are applicable to all ship types driven by conventional fixed pitch propellers, where the objective is to compare the hull and propeller performance of the same ship to itself over time.NOTE Support for additional config
28、urations (e.g. variable pitch propellers) will, if justified, be included in later revisions of this document.2 Normative referencesThere are no normative references in this document.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maint
29、ain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp3.1hull and propeller performancerelationship between the condition of a ships underwater hul
30、l and propeller and the power required to move the ship through water at a given speed3.2delivered powerPDpower delivered to the propeller (propeller power)3.3speed through the waterVships speed through water for a given set of service (environmental) and loading (displacement/trim) conditionsINTERN
31、ATIONAL STANDARD ISO 19030-1:2016(E) ISO 2016 All rights reserved 1BS ISO 19030-1:2016ISO 19030-1:2016(E)3.4accuracydescribed by trueness and precision, where trueness refers to the closeness of the mean of the measurement results to the actual (true) value and precision refers to the closeness of a
32、greement within individual resultsNote 1 to entry: See ISO 5725-1:1994, 3.6 and Introduction 0.1.3.5uncertaintyprobability that the measurement of a quantity is within the specified accuracy to that quantitys actual (true) value3.6filteringmethod of removing unwanted data3.7normalizationrefers to th
33、e creation of shifted and scaled versions of statistics, where the intention is that these normalized values allow the comparison of corresponding normalized values in a way that eliminates the effects of specific influences3.8performance indicatorsPIsused to evaluate the effectiveness of, or to tri
34、gger, a particular activity3.9dry-dockingbringing the ship onto dry land to maintain, repair and/or retrofit the parts of the hull that are submerged while the ship is in service3.10out-dockingperiod immediately following a dry-docking3.11dry-docking intervalperiod between two consecutive dry-dockin
35、gs4 General principles4.1 Hull and propeller performanceHull and propeller performance refers to the relationship between the condition of a ships underwater hull and propeller and the power required to move the ship through water at a given speed. Hull and propeller performance is related to variat
36、ions in power, because ship hull resistance and propeller efficiency are not directly measurable quantities.2 ISO 2016 All rights reservedBS ISO 19030-1:2016ISO 19030-1:2016(E)4.2 Ship propulsion efficiency and total resistanceHull and propeller performance is closely linked to the concepts of ship
37、propulsion efficiency and ship resistance. The performance model is based on the relation between the delivered power and the total resistance where delivered power, PD, can be expressed as Formula (1):PRVDTQ=(1)whereRTis the total in-service resistance (N);V is the ship speed through water (m/s);Qi
38、s the quasi-propulsive efficiency (-).The total resistance consists of several resistance parts and can be written as Formula (2):RR RR RTSWAAAWAH=+ (2)whereRSWis the still-water resistance (N);RAAis the added resistance due to wind (N);RAWis the added resistance due to waves (N);RAHis the added res
39、istance due to changes in hull condition (fouling, mechanical damages, bulging, paint film blistering, paint detachment, etc.), (N).Likewise, the quasi-propulsive efficiency consists of different efficiency components expressed as Formula (3):Q0HR= (3)where0is the open-water propeller efficiency;His
40、 the hull efficiency;Ris the relative rotative efficiency.The added resistance due to changes in hull condition can be expressed as Formula (4):RPVRRRAHDQSW AA AW=+() (4) ISO 2016 All rights reserved 3BS ISO 19030-1:2016ISO 19030-1:2016(E)whereV is the ship speed through water, can be measured direc
41、tly; PDis the delivered power, must be approximated for example based on calculations of shaft power;PSis from measurements of shaft torque and shaft revolutions or, alternatively, from calculations of brake power;PBis from SFOC reference curves, measurements of fuel flow and temperature and data on
42、 calo-rific value, density and density change rate for the fuel being consumed.Variations in the delivered power required to move the ship through water at a given speed, and the same environmental conditions and operational profile, are due to changes in the underwater hull resistance and/or propel
43、ler efficiency. Changes in underwater hull resistance are due to alterations in the condition of the hull. Changes in the propeller efficiency are due to both alterations in the condition of the propeller and to modifications to the flow of water to the propeller (the hull wake) as consequence of al
44、terations to the hull condition.For a vessel in service, both environmental conditions and operational profile (e.g. speed, loading, trim) vary. In order to measure changes in the speed-power relationship for a vessel in service, it is necessary to compare two periods (a reference period and an eval
45、uation period) where the environmental conditions and the operational profile are adequately comparable (filter the observed data) and/or apply corrections (normalize the observed data).There are a number of alternative procedures for filtering and normalizing observed data. These procedures each ha
46、ve advantages and disadvantages in terms of the resulting accuracy of the measurements. This document prescribes a practical blend of filtering and normalization procedures found to yield sufficient accuracy.NOTE The relative importance of the different resistance components varies to certain degree
47、 with the operational and environmental condition the vessel is exposed to. Also, the accuracy of the models to correct/normalize for such variations depends on the operational and environmental conditions. These dependencies impact the accuracy of the hull and propeller performance indicators as de
48、scribed in the current standard. Therefore, in the estimation of the accuracy of the performance indicators and for the intended use comparable operational and environmental conditions over the reference and evaluation period (see Annex A) are assumed. Future revisions of this document will re-evalu
49、ate if more accurate correction formulae are available that take the above mentioned dependencies into consideration.Hull and propeller maintenance, repair and retrofit activities have an effect on the energy efficiency of a ship in service. An indication of these effects can be obtained by measurement of changes in the delivered power required to move the ship through water at a given speed between two periods for which the environmental conditions and operational profiles have been made adequately comparable throug
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