Devices for the transformation of motion in the structure of oscillatory system: dynamic damping of oscillations

Orlenko, A. I.; Kuznetsov, N. K.; Vuong, Quang Truc

doi:10.1088/1757-899x/327/2/022078

Cited by 3 publications

(1 citation statement)

References 1 publication

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“…In vector form, the equation of energy transfer in a fluid medium has the form [15][16]: Taking the assumption that the physical properties of the medium are independent of temperature and that there are no internal sources of heat, the Fourier-Kirchhoff equation takes the form [17][18][19][20][21]:…”

Section: Fourier-kirchhoff Differential Equationmentioning

confidence: 99%

Thermal conditions of load-bearing elements of radioactive waste storage facilities

2020

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Facilities for storing radioactive waste with residual heat differ from other facilities in high safety standards in all operating conditions. A feature of these structures is the presence of biological protection in the form of walls and ceilings made of reinforced concrete with a large thickness. The combination of heat dissipation and the large thickness of walls and floors create conditions for the appearance of significant thermal stresses. This feature should be taken into account in the strength calculations of these buildings, taking into account the summation of seismic effects, gravitational forces and thermal stresses caused by uneven temperature fields in concrete. The paper presents the results of calculations of the combined effects of thermal stresses and earthquakes on a building. The data obtained made it possible to determine the features of the deformation of concrete structures with a combination of loads.

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Section: Fourier-kirchhoff Differential Equationmentioning

confidence: 99%

Thermal conditions of load-bearing elements of radioactive waste storage facilities

2020

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Simulation of seismic reactions of an energy steam boiler

Yakovlev

Лебедев

Cqhurkin

2019

IOP Conf. Ser.: Earth Environ. Sci.

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Energy boilers for seismic impacts are different from other objects. Their individual characteristics are associated with the frame construction and the boilers used pipes of great length. The most important parameter used in the calculation of seismic effects is the damp-ratio. The damp-ratio is different for pipes and frame, and this creates difficulties in performing calculations. The paper proposed a method for taking into account the difference of the damp-ratio and estimated the calculation error in the case of the use of the damp-ratio for the frame when calculating the entire boiler without taking into account the features of pipe damping. According to the results of calculations, the elements with the greatest deformations and the elements with the highest stresses in the metal are identified in the boiler structure.

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Modeling of objects for reception and storage of spent nuclear fuel

Yakovlev

Piskunov

Лебедев

et al. 2019

IOP Conf. Ser.: Earth Environ. Sci.

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Facilities for the storage of nuclear fuel are distinguished from other objects by high standards of safety in any operating conditions. A feature of these structures is the large thickness of the walls and floors. This feature should be taken into account in the calculations of seismic effects and thermal stresses caused by uneven temperature fields in concrete. In the work, calculations of joint effects on the building of thermal stresses and earthquakes are made. The calculations allowed us to distinguish the features of the deformation of concrete structures.

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Devices for the transformation of motion in the structure of oscillatory system: dynamic damping of oscillations

Cited by 3 publications

References 1 publication

Thermal conditions of load-bearing elements of radioactive waste storage facilities

Thermal conditions of load-bearing elements of radioactive waste storage facilities

Simulation of seismic reactions of an energy steam boiler

Modeling of objects for reception and storage of spent nuclear fuel

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