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https://doi.org/10.21278/brod68404

AN APPROACH TO THE PROBABILISTIC CORROSION RATE ESTIMATION MODEL FOR INNER BOTTOM PLATES OF BULK CARRIERS

Špiro Ivošević   ORCID icon orcid.org/0000-0001-6670-4770 ; University of Montenegro , Maritime Faculty Kotor, Dobrota 36, Kotor, Montenegro
Romeo Meštrović ; University of Montenegro , Maritime Faculty Kotor, Dobrota 36, Kotor, Montenegro
Nataša Kovač ; University of Montenegro , Maritime Faculty Kotor, Dobrota 36, Kotor, Montenegro

Puni tekst: engleski, pdf (895 KB) str. 57-70 preuzimanja: 240* citiraj
APA 6th Edition
Ivošević, Š., Meštrović, R. i Kovač, N. (2017). AN APPROACH TO THE PROBABILISTIC CORROSION RATE ESTIMATION MODEL FOR INNER BOTTOM PLATES OF BULK CARRIERS. Brodogradnja, 68 (4), 57-70. https://doi.org/10.21278/brod68404
MLA 8th Edition
Ivošević, Špiro, et al. "AN APPROACH TO THE PROBABILISTIC CORROSION RATE ESTIMATION MODEL FOR INNER BOTTOM PLATES OF BULK CARRIERS." Brodogradnja, vol. 68, br. 4, 2017, str. 57-70. https://doi.org/10.21278/brod68404. Citirano 18.11.2019.
Chicago 17th Edition
Ivošević, Špiro, Romeo Meštrović i Nataša Kovač. "AN APPROACH TO THE PROBABILISTIC CORROSION RATE ESTIMATION MODEL FOR INNER BOTTOM PLATES OF BULK CARRIERS." Brodogradnja 68, br. 4 (2017): 57-70. https://doi.org/10.21278/brod68404
Harvard
Ivošević, Š., Meštrović, R., i Kovač, N. (2017). 'AN APPROACH TO THE PROBABILISTIC CORROSION RATE ESTIMATION MODEL FOR INNER BOTTOM PLATES OF BULK CARRIERS', Brodogradnja, 68(4), str. 57-70. https://doi.org/10.21278/brod68404
Vancouver
Ivošević Š, Meštrović R, Kovač N. AN APPROACH TO THE PROBABILISTIC CORROSION RATE ESTIMATION MODEL FOR INNER BOTTOM PLATES OF BULK CARRIERS. Brodogradnja [Internet]. 2017 [pristupljeno 18.11.2019.];68(4):57-70. https://doi.org/10.21278/brod68404
IEEE
Š. Ivošević, R. Meštrović i N. Kovač, "AN APPROACH TO THE PROBABILISTIC CORROSION RATE ESTIMATION MODEL FOR INNER BOTTOM PLATES OF BULK CARRIERS", Brodogradnja, vol.68, br. 4, str. 57-70, 2017. [Online]. https://doi.org/10.21278/brod68404

Sažetak
This paper gives an approach to the probabilistic corrosion rate estimation model for inner bottom plates of bulk carriers. Firstly, by using the data from thickness measurements for inner bottom plates for considered 25 bulk carriers, the related best fitted linear model for the corrosion wastage is obtained as a function of ship’s age. In this model it is assumed that life of coating is 4 years. The obtained related corrosion rate is equal to mm/year. Notice that the obtained linear model is a particular case of a power model proposed in some earlier investigations.
In view of the fact that the corrosion rate of ship hull structures is influenced by many factors, many of an uncertain nature, in recent studies several authors investigated a probabilistic model as more appropriate to describe the expected corrosion. Motivated by these investigations, and using 2926 thickness measurements for corrosion wastage of inner bottom plates of considered 38 special ships surveys, this paper examines the cumulative density function for the corrosion rate involved in the mentioned linear model, and considered here as a continuous random variable. The obtained statistical, numerical and graphical results show that the logistic distribution or normal distribution would be well appropriate for the probabilistic corrosion rate estimation model for inner bottom plates of bulk carriers. It is believed that this fact will be confirmed with greater statistical reliability in our future investigations including many more data collected on the considered corrosion.

Ključne riječi
bulk carrier; fuel oil tanks; ship hull structure members; inner bottom plates; corrosion; probabilistic corrosion rate estimation model; normal distribution; logistic distribution

Hrčak ID: 186015

URI
https://hrcak.srce.hr/186015

Posjeta: 439 *