Speaker
Ivan Popov
(Mechanics and Control)
Description
In this paper the stress-strain state of the diagnostic shield modules (DSM) and the supporting frames (ISS, PCSS), located in the upper ports #2 and #8 of the tokamak ITER is investigated.
DSM is the upper port components and has two main functions: neutron radiation protection and maintenance of rigid fixation diagnostics placed in the port. DSM is operated at high temperatures, significant electromagnetic loads and intensive flux of high-energy neutrons. During the structural analysis it is required to take into account all these loading factors.
DSM consists of four massive steel parts joined by welding. Cooling channels are located within these parts. For the efficiency analysis of the cooling system the thermo-hydraulic calculation using Ansys CFX system is made. The initial data for determining the volume heat generation was the result of neutron calculation.The thermal state of the DSM in normal operation is calculated and the characteristics of the coolant flow in the cooling channels are obtained. The resulting temperature field is used to determine the thermal stress state.
Also in the work the calculation of dynamic electromagnetic loads in the individual parts of the structure is carried out. The presented calculations are executed by numerical simulation using ANSYS Maxwell, Mechanical. The solution of the electromagnetic dynamic problem with the plasma failure scenario VDE"Up" is gathered. The input data for this task was the result from simulation of the code DINA.
We investigate the DSM and the supporting frames structural integrity under the action of seismic loads by the linear-spectral method. Based on the equivalent stress values obtained as a result of the seismic analysis, conclusions about the possibility of operating under the influence of the seismic loads are made. Based on the results of the seismic analysis the interface loadings (response spectrums) at the attachment points are calculated.
Co-authors
Alexander Listopad
(BINP SB RAS, Novosibirsk, Russian Federation)
Alexey Lukin
(Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Saint-Petersburg, Russian Federation)
Andrew Pivkov
(Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Saint-Petersburg, Russian Federation)
Igor Buslakov
(Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Saint-Petersburg, Russian Federation)
Ivan Kirienko
(Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Saint-Petersburg, Russian Federation)
Ivan Popov
(Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Saint-Petersburg, Russian Federation)
Maksim Ivantsivsky
(BINP SB RAS, Novosibirsk, Russian Federation)
Victor Modestov
(Mechanics and Control, Peter the Great St. Petersburg Polytechnic University, Saint-Petersburg, Russian Federation)
