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Seismic Isolation of NPP Turbine Unit Using Dry Friction Devices
https://orcid.org/http://orcid.org/0000-0002-8616-9717
https://orcid.org/http://orcid.org/0000-0002-2499-0243
The possibility of reducing the acceleration of NPP turbine unit during earthquakes with the use of devices working on the principle of dry friction is investigated. A review of works on seismic isolation of structures is given. Problems for calculation of structures with seismic isolation using the principle of dry friction are formulated. A new algorithm for solving seismodynamics problems of structures in the presence of dry friction forces has been proposed. Vibration of a seismically isolated NPP turbine unit has been calculated for four different earthquakes on the basis of seismogram and accelerogram records with intensity 8–10 points on MSK-64 scale. Influence of vertical component of seismic wave on the process of horizontal vibrations of the structure is studied. Displacements and accelerations of the base of the structure and the turbine unit are given in the form of diagrams and tables. The degree of reduction of horizontal acceleration of the turbo-generator when using seismic isolation from 2.4 to 12 times in comparison with the maximum acceleration of the base is shown.
Seismic Isolation of NPP Turbine Unit Using Dry Friction Devices
https://orcid.org/http://orcid.org/0000-0002-8616-9717
https://orcid.org/http://orcid.org/0000-0002-2499-0243
The possibility of reducing the acceleration of NPP turbine unit during earthquakes with the use of devices working on the principle of dry friction is investigated. A review of works on seismic isolation of structures is given. Problems for calculation of structures with seismic isolation using the principle of dry friction are formulated. A new algorithm for solving seismodynamics problems of structures in the presence of dry friction forces has been proposed. Vibration of a seismically isolated NPP turbine unit has been calculated for four different earthquakes on the basis of seismogram and accelerogram records with intensity 8–10 points on MSK-64 scale. Influence of vertical component of seismic wave on the process of horizontal vibrations of the structure is studied. Displacements and accelerations of the base of the structure and the turbine unit are given in the form of diagrams and tables. The degree of reduction of horizontal acceleration of the turbo-generator when using seismic isolation from 2.4 to 12 times in comparison with the maximum acceleration of the base is shown.
Seismic Isolation of NPP Turbine Unit Using Dry Friction Devices
https://orcid.org/http://orcid.org/0000-0002-8616-9717
https://orcid.org/http://orcid.org/0000-0002-2499-0243
The possibility of reducing the acceleration of NPP turbine unit during earthquakes with the use of devices working on the principle of dry friction is investigated. A review of works on seismic isolation of structures is given. Problems for calculation of structures with seismic isolation using the principle of dry friction are formulated. A new algorithm for solving seismodynamics problems of structures in the presence of dry friction forces has been proposed. Vibration of a seismically isolated NPP turbine unit has been calculated for four different earthquakes on the basis of seismogram and accelerogram records with intensity 8–10 points on MSK-64 scale. Influence of vertical component of seismic wave on the process of horizontal vibrations of the structure is studied. Displacements and accelerations of the base of the structure and the turbine unit are given in the form of diagrams and tables. The degree of reduction of horizontal acceleration of the turbo-generator when using seismic isolation from 2.4 to 12 times in comparison with the maximum acceleration of the base is shown.
Seismic Isolation of NPP Turbine Unit Using Dry Friction Devices
Lecture Notes in Civil Engineering
Vatin, Nikolai (editor) / Roshchina, Svetlana (editor) / Serdjuks, Dmitrijs (editor) / Mirzaev, Ibrakhim (author) / Turdiev, Malikjon (author)
International Conference on Materials Physics, Building Structures & Technologies in Construction, Industrial and Production Engineering – MPCPE ; 2022 ; Vladimir, Russia
2023-10-18
13 pages
Article/Chapter (Book)
Electronic Resource
English
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