English

Vol. 9 6, 2019 p 626-632

Pages

Article name, authors, abstract and keyword

626-632

Strength, rigidity and buoyancy analysis for pontoons in vertical cylindrical tanks

Mikhail G. Karavaichenko a, Alexander V. Vasiliev b, Rustam I. Galimzyanov b

a Ufa State Petroleum Technological University (USPTU), 1 Kosmonavtov Str., Ufa, 450062, Russian Federation

b Neftemontazhdiagnostika, CJSC, 13 Ufimskoe Shosse, Ufa, 450104, Russian Federation

DOI: 10.28999/2541-9595-2019-9-6-626-632

Abstract: A model for finite element calculations of a full-contact pontoon for rigidity and strength is proposed. The boundary conditions, design performances of materials and loads (as per GOST 31385-2016) applied in the construction of the finite element model of the pontoon are indicated. The results of calculations for the strength, deformation and buoyancy of full-contact pontoons Pb-40-0.6; Pb-60-0.6; Pb-60-1.2 are presented. It is established that Pb-40-0.6 pontoons have sufficient strength, but are not able to carry a combination of loads from their dead weight and 0.24 kPa; Pb-60-0.6 pontoons have sufficient strength, buoyancy and allowed movements under loads regulated by GOST 31385-2016; Pb-60-1.2 pontoons meet the regulatory requirements for strength, rigidity and buoyancy, however, increased up to 1.2 mm thickness of floor boarding leads to an increase in the weight and cost of the pontoon, while not solving the problem of corrosion. It is proposed to use the clad alloy AMg2AM or an electrically conductive polymer composite material with a service temperature of 60 ... +120 C, resistant to hydrocarbon media, as a corrosion-resistant material for pontoon floor boarding.

Keywords: vertical steel tank, pontoon, finite element method, pontoon strength calculation, pontoon rigidity calculation, pontoon buoyancy calculation.

For citation:
Karavaichenko M. G., Vasiliev . V., Galimzyanov R. I. Strength, rigidity and buoyancy analysis for pontoons in vertical cylindrical tanks. Nauka i tehnologii truboprovodnogo transporta nefti i nefteproduktovScience & Technologies: Oil and Oil Products Pipeline Transportation. 2019;9(6):626632.

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