[2003] A Time-dependent Corrosion Wastage Model for the Structures of …
최고관리자 | 03-11-04 10:23
Marine Technology, Vol.40, No.3, pp.201-217, 2003
A Time-dependent Corrosion Wastage Model for the Structures of Single / Double Hull Tankers and FSOs / FPSOs
Author(s): Jeom Kee Paik, Jae Myung Lee, Joon Sung Hwang and Young Il Park
Abstract:
In this paper, a mathematical model for predicting time-variant corrosion wastage of the structures of single/double hull tankers and FSOs/FPSOs. The measurement data of corrosion depth (thickness loss) for single skin oil tanker structures of various ages are collected and the statistical characteristics (mean, variance, distribution) of measured corrosion data are quantified in terms of ship age. A set of time-dependent corrosion wastage models for 34 different structural member groups by type and location, considering plating, and webs and flanges of stiffening, are then developed by the statistical analysis of the corrosion measurements. The nominal design corrosion values (NDCV) for primary member locations/categories are also proposed. The results of this study can be updated as additional experience is accumulated. The procedures and insights developed in the present work will be useful for predicting the depth of corrosion in oil tanker structures. They will also be useful for establishing requirement.
A Time-dependent Corrosion Wastage Model for the Structures of Single / Double Hull Tankers and FSOs / FPSOs
Author(s): Jeom Kee Paik, Jae Myung Lee, Joon Sung Hwang and Young Il Park
Abstract:
In this paper, a mathematical model for predicting time-variant corrosion wastage of the structures of single/double hull tankers and FSOs/FPSOs. The measurement data of corrosion depth (thickness loss) for single skin oil tanker structures of various ages are collected and the statistical characteristics (mean, variance, distribution) of measured corrosion data are quantified in terms of ship age. A set of time-dependent corrosion wastage models for 34 different structural member groups by type and location, considering plating, and webs and flanges of stiffening, are then developed by the statistical analysis of the corrosion measurements. The nominal design corrosion values (NDCV) for primary member locations/categories are also proposed. The results of this study can be updated as additional experience is accumulated. The procedures and insights developed in the present work will be useful for predicting the depth of corrosion in oil tanker structures. They will also be useful for establishing requirement.