A Practical Guide to Damage Stability Assessment - SOLAS Regulation on Damage Stability
Year: 201x Language: english Author: J Gullaksen Format: PDF Quality: Unknown Pages count: 133 Description: SUMMARY: In order to assess the behaviour of the ship after damage, two different approaches are used for damage stability assessment: the deterministic approach and the probabilistic approach, which are to be applied depending on the ship type. The damage stability requirements are more critical than the intact stability requirements, and as a result of new harmonised probabilistic damage stability rules, IMO Resolution MSC 216(82), which introduced new ship damage stability regulations into SOLAS from 1 January 2009, discussions about what effects the new rules will have on ship designs have been held throughout the shipping industry. This paper is intended to introduce the conceptual framework and to provide clarification for the initial preparation of damage stability assessment and to the use of these regulations. An Excel Spreadsheet with VBA code has been developed for calculation of the pi factor probability to various extents of damage and damage case occurring. Two different approaches are used for damage stability assessment: - the deterministic approach and - the probabilistic approach, which are to be applied depending on the ship type. This paper has been prepared to serve as a practical guide to damage stability assessment for the purpose to give guidance on the application of the regulations for damage stability calculation including an overview of the present regulatory framework. An Excel Spreadsheet I is used to calculate the probabilities of a damage case occurring. Additional commercial software is necessary to calculate the probability of surviving a particular damage case for calculation of the attained safety index. Included APPENDIX A_ Excel Spreadsheet: A numerical method is implemented in a VBA script in an Excel spreadsheet. The spreadsheet with VBA macros, SOLAS2009_JGCE.xlsm8, includes the inputs with main parameters and calculates the p-factor probabilities of a damage case occurring.
Contents
A Practical Guide to Damage Stability Assessment - Regulation on Damage Stability
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A Practical Guide to Damage Stability Assessment - SOLAS Regulation on Damage Stability
Language: english
Author: J Gullaksen
Format: PDF
Quality: Unknown
Pages count: 133
Description: SUMMARY:
In order to assess the behaviour of the ship after damage, two different approaches are used for damage stability assessment: the deterministic approach and the probabilistic approach, which are to be applied depending on the ship type. The damage stability requirements are more critical than the intact stability requirements, and as a result of new harmonised probabilistic damage stability rules, IMO Resolution MSC 216(82), which introduced new ship damage stability regulations into SOLAS from 1 January 2009, discussions about what effects the new rules will have on ship designs have been held throughout the shipping industry. This paper is intended to introduce the conceptual framework and to provide clarification for the initial preparation of damage stability assessment and to the use of these regulations. An Excel Spreadsheet with VBA code has been developed for calculation of the pi factor probability to various extents of damage and damage case occurring.
Two different approaches are used for damage stability assessment:
- the deterministic approach and
- the probabilistic approach, which are to be applied depending on the ship type.
This paper has been prepared to serve as a practical guide to damage stability assessment for the purpose to give guidance on the application of the regulations for damage stability calculation including an overview of the present regulatory framework. An Excel Spreadsheet I is used to calculate the probabilities of a damage case occurring. Additional commercial software is necessary to calculate the probability of surviving a particular damage case for calculation of the attained safety index.
Included APPENDIX A_ Excel Spreadsheet:
A numerical method is implemented in a VBA script in an Excel spreadsheet. The spreadsheet with VBA macros, SOLAS2009_JGCE.xlsm8, includes the inputs with main parameters and calculates the p-factor probabilities of a damage case occurring.
Contents
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