Simulation of the stress-strain state of a cylindrical tank under the action of forced oscillations

Hud, Mykhailo

doi:10.1016/j.prostr.2022.01.006

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…At the present stage of the ongoing research in the field of the earthquake resistance of plate and shell structures, a number of relevant studies can be found [47][48][49][50][51][52][53][54][55][56][57][58][59][60][61]. Particularly, in the work proposed by Śliwa et al [47], in order to restore the carrying power of a structure, the problem of repairing the "dents" with carbon fibers was considered, but the issue of the dynamic effects was not investigated.…”

Section: % 36% 52%mentioning

confidence: 99%

“…Conversely, the work presented by Al-Yacouby et al [50] focused on numerical modeling for the design of operational loads taking into account hydrodynamic pressure. In Hud [51] and Sierikova et al [52], a Finite Element (FE) model of a full-scale steel tank was implemented and calculations were executed under operational loading. The values of the frequencies and periods of the natural dynamic oscillations of a steel tank under various operational modes were then gained.…”

Section: % 36% 52%mentioning

confidence: 99%

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Experimental and Theoretical Reproducibility Research on the Earthquake Resistance of Cylindrical Steel Tanks

Zhangabay,

Bonopera,

Utelbayeva

et al. 2023

Vibration

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This article analyzes the convergence of the obtained values as a result of the authors’ earlier experimental and theoretical studies. On the basis of the correlations, it was found that the analyses of a traditional cylindrical steel tank without a steel wire strand wrapping and with a filling level of zero by a liquid showed a difference in natural vibration frequencies of 8.4%, while with half and maximal filling by a liquid showed differences equal to 3.2% and 6.2%, respectively. Vice versa, analyses of a cylindrical steel tank with a steel wire strand winding pitch of a = 3d and with a filling level of zero by a liquid showed a difference in natural vibration frequencies of 8.1%, while with half and maximum filling by a liquid and with the same steel wire strand winding pitch showed differences of 10.1% and 5.9%, respectively. Conversely, analyses of a cylindrical steel tank with a steel wire strand winding pitch of a = d and in absence of filling level amounted to a difference of 5.5%, while with half and maximum filling and with the same steel wire strand winding pitch of a = d, differences of 1.6% and 1.4% were, respectively, achieved. Based on the aforementioned results, the general difference between experimental and theoretical vibration frequencies showed up to 10%, which is a satisfactory result of convergence. The obtained findings of this research can be used by engineers and technical workers in the industries of various fields, research institutes and professional companies in designing new earthquake-resistant steel tanks and strengthening existing ones. Conclusions were then mentioned at the end of the article.

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Section: % 36% 52%mentioning

confidence: 99%

Section: % 36% 52%mentioning

confidence: 99%

Experimental and Theoretical Reproducibility Research on the Earthquake Resistance of Cylindrical Steel Tanks

Zhangabay,

Bonopera,

Utelbayeva

et al. 2023

Vibration

View full text Add to dashboard Cite

show abstract

“…It is known that the most common causes of accidents and emergencies on all types of tanks (steel, concrete, reinforced concrete, vertical, horizontal, etc.) are stress concentrators in combination with adverse operational influences; [6][7][8][9][10][11] considered various variants of tank structures: steel, concrete, horizontal, and vertical. The design of the tanks took into consideration the characteristics of the material, as well as ways to increase the strength properties of the materials.…”

Section: Introductionmentioning

confidence: 99%

Estimating the stressed-strained state of the vertical mounting joint of the cylindrical tank wall taking into consideration imperfections

Suleimenov

Zhangabay

Abshenov

et al. 2022

EEJET

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Based on the use of a multi-level mathematical model, this paper estimates the stressed-strained state of a cylindrical reservoir in the mounting joint and considers the concentration of stresses in the joint zone. The correctness of the selected mathematical model was verified to show that for an engineering assessment of the stressed-strained state of the wall of a cylindrical tank with variable thickness, it is possible to use the ratios for a cylindrical shell with a constant wall thickness. The spread of values is no more than 1 %, which indicates the proper selection of the mathematical model. A numerical assessment of the stressed-strained state in the zone of the mounting joint proved the assumption of significant stress concentrations in the zone and indicated the determining effect exerted on the concentration of stresses by its geometric dimensions. The concentration of stresses in the joint zone of the tank wall was investigated at various sizes in the ANSYS programming environment. The result of calculating the stressed-strained state of the reservoir for various values of the dent parameters f/t and is the constructed polynomials that approximate the stress concentration coefficient Kσ. As a result of the calculations, an interpolation polynomial and an approximating stress concentration coefficient were derived, which could be used to assess the strength, durability, residual life of the tank and to normalize the limiting dimensions of the imperfection of the joint. This paper reports comparative results of the calculations of the stress concentration coefficient depending on the geometric dimensions of the imperfection of the mounting joint in the ANSYS software package, as well as using an interpolation polynomial. The results could be used to assess the strength and residual life of such structures.

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Wind induced oscillation on a tall circular storage shell for various terrains

Mukherjee

Roy

Samanta

2022

Materials Today: Proceedings

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Simulation of the stress-strain state of a cylindrical tank under the action of forced oscillations

Cited by 6 publications

References 3 publications

Experimental and Theoretical Reproducibility Research on the Earthquake Resistance of Cylindrical Steel Tanks

Experimental and Theoretical Reproducibility Research on the Earthquake Resistance of Cylindrical Steel Tanks

Estimating the stressed-strained state of the vertical mounting joint of the cylindrical tank wall taking into consideration imperfections

Wind induced oscillation on a tall circular storage shell for various terrains

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