ABS-98-NOTICE-3-2005.pdf
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1、 ABS GUIDE FOR BUILDING AND CLASSING PASSENGER VESSELS . 2001 1 GUIDE FOR BUILDING AND CLASSING PASSENGER VESSELS MARCH 2001 NOTICE NO. 3 July 2005 The following Rule Changes were approved by the ABS Rules Committee on 17 June 2005 and become EFFECTIVE AS OF 1 JULY 2005. (See http:/www.eagle.org/rul
2、es/downloads.html for the consolidated version of the Guide for Building and Classing Passenger Vessels, 2001, updated in July 2005, with all Notices and Corrigenda incorporated.) Notes - The date in the parentheses means the date that the Rule becomes effective for new construction based on the con
3、tract date for construction. SECTION 3 SUBDIVISION AND STABILITY 7 Stability Information (Add new Paragraph 3/7.5 as follows:) 7.5 Onboard Computers for Stability Calculations (1 July 2005) The use of onboard computers for stability calculations is not a requirement of class. However, if stability s
4、oftware is installed onboard vessels contracted on or after 1 July 2005, it should cover all stability requirements applicable to the vessel and is to be approved by the Bureau for compliance with the requirements of Section 3, Appendix 1, “Onboard Computers for Stability Calculations”. The hardware
5、 is to be either approved in accordance with the recognized standards*, or at least two computers are to be nominated and specifically provided with software capable of performing stability calculations for the vessel. * Note: A guideline on hardware approval is available from IACS Recommendations N
6、o. 48, 3.2 “Stand-alone Computer Hardware” Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 19:39:31 MDTNo reproduction or networking permitted without license from IHS -,-,- Notice No. 3 July 2005 2 ABS GUIDE FOR B
7、UILDING AND CLASSING PASSENGER VESSELS . 2001 SECTION 3 SUBDIVISION AND STABILITY APPENDIX 1 ONBOARD COMPUTERS FOR STABILITY CALCULATIONS (1 JULY 2005) (Add new Section 3, Appendix 1, as follows.) 1 General 1.1 Scope The scope of stability calculation software is to be in accordance with the stabili
8、ty information as approved by the flag Administration or the Bureau on behalf of the flag Administration. The software is at least to include all information and perform all calculations or checks as necessary to ensure compliance with the applicable stability requirements. Approved stability softwa
9、re is not a substitute for the approved stability information, and is used as a supplement to the approved stability information to facilitate stability calculations. 1.3 Design The input/output information is to be easily comparable with approved stability information so as to avoid confusion and p
10、ossible misinterpretation by the operator relative to the approved stability information. An operation manual is to be provided for the onboard computer stability software. The language in which the stability information is displayed and printed out as well as the operation manual is written is to b
11、e the same as used in the vessels approved stability information. The primary language is to be English. The onboard computer for stability calculations is vessel specific equipment and the results of the calculations are only applicable to the vessel for which it has been approved. In case of modif
12、ications implying changes in the main data or internal arrangement of the vessel, the specific approval of any original stability calculation software is no longer valid. The software is to be modified accordingly and reapproved. 3 Calculation Systems This Appendix covers either system, a passive sy
13、stem that requires manual data entry or an active system, which replaces the manual with the automatic entry with sensors reading and entering the contents of tanks, etc., provided the active system is in the off-line operation mode. However, an integrated system, which controls or initiates actions
14、 based on the sensor-supplied inputs is not within the scope of this Appendix. Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 19:39:31 MDTNo reproduction or networking permitted without license from IHS -,-,- Noti
15、ce No. 3 July 2005 ABS GUIDE FOR BUILDING AND CLASSING PASSENGER VESSELS . 2001 3 5 Types of Stability Software Three types of calculations performed by stability software are acceptable depending upon a vessels stability requirements: Type 1 Software calculating intact stability only (for vessels n
16、ot required to meet a damage stability criterion) Type 2 Software calculating intact stability and checking damage stability on basis of a limit curve or previously approved loading conditions Type 3 Software calculating intact stability and damage stability by direct application of preprogrammed da
17、mage cases for each loading condition 7 Functional Requirements 7.1 Calculation Program The calculation program is to present relevant parameters of each loading condition in order to assist the Master in his judgment on whether the vessel is loaded within the approval limits. The following paramete
18、rs are to be presented for a given loading condition: Deadweight data Lightship data Trim Draft at the draft marks and perpendiculars Summary of loading condition displacement, VCG, LCG and, if applicable, TCG Downflooding angle and corresponding downflooding opening Compliance with stability criter
19、ia: Listing of all calculated stability criteria, the limit values, the obtained values and the conclusions (criteria fulfilled or not fulfilled) 7.3 Direct Damage Stability Calculations If direct damage stability calculations are performed, the relevant damage cases according to the applicable rule
20、s are to be pre-defined for automatic check of a given loading condition. 7.5 Warning A clear warning is to be given on screen and in hard copy printout if any of the loading limitations are not complied with. 7.7 Data Printout The data are to be presented on screen and in hard copy printout in a cl
21、ear unambiguous manner. 7.9 Date and Time The date and time of a saved calculation are to be part of the screen display and hard copy printout. Copyright American Bureau of Shipping Provided by IHS under license with ABS Licensee=Boeing Co/5910770001 Not for Resale, 08/07/2008 19:39:31 MDTNo reprodu
22、ction or networking permitted without license from IHS -,-,- Notice No. 3 July 2005 4 ABS GUIDE FOR BUILDING AND CLASSING PASSENGER VESSELS . 2001 7.11 Information of Program Each hard copy printout is to include identification of the calculation program with version number. 7.13 Units Units of meas
23、urement are to be clearly identified and used consistently within a loading calculation. 9 Acceptable Tolerances Depending on the type and scope of programs, the acceptable tolerances are to be determined differently, according to 3A1/9.1 or 3A1/9.3. In general, deviation from these tolerances is no
24、t to be accepted unless a satisfactory explanation for the difference is submitted for review and the same is satisfactorily confirmed by the Bureau that there would be no adverse effect on the safety of the vessel. Examples of pre-programmed input data include the following: Hydrostatic data: Displ
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