Speaker
Ivan Kirienko
(Mechanics and controls)
Description
The presentation is focused on the simulation results and approaches used for loading analyses made for DTS in-vessel equipment, including spatial stress strain state, seismic analysis, electromagnetic analysis as well as the most important load combinations.
Finite element model of the construction was updated according with updated DTS components design and separated on the following construction parts: outer frames of the front and back diagnostic racks, neutron shield attached to the front rack outer frame as well as front and back inner frames with optical components. The nuclear heating released in the front rack constructions was used as an input data for the transient thermal analysis, resulting temperature map behavior during normal operation mode with 500 MW of fusion power. The thermal analyses with and without taking into account black body radiation of the front rack construction outer surfaces were made to obtain upper and lower heating estimates without accounting reabsorption of the radiation. Basing on the thermal analysis results, the DTS in-vessel elements stress strain state was analyzed and the most stressed points were listed. Both linear spectrum and equivalent static methods were used for seismic analysis to obtain stress and displacement maps in construction due to seismic loads. Electromagnetic analysis was done to determine applied to the constructions forces and moments for the most severe plasma disruption events. Stress strain state and temperature maps due to plasma disruption events were obtained also. Some incident and accident events were studied being enveloped into a single event called “Accident”. This event takes into account the worst conditions of significant incident and accident events. Finally, the load combinations of event categories I-IV were studied and the obtained results were analyzed.
Co-authors
Alexandr Nemov
(Mechanics and controls, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Polytechnicheskaya St. 29-1, Russian Federation)
Andrei Pivkov
(Mechanics and controls, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Polytechnicheskaya St. 29-1, Russian Federation)
Dmitrii Samsonov
(Ioffe Institute, Polytechnicheskaya St. 26, Russian Federation)
Evgenii Mukhin
(Ioffe Institute, Polytechnicheskaya St. 26, Russian Federation)
Igor Buslakov
(Mechanics and controls, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Polytechnicheskaya St. 29-1, Russian Federation)
Ivan Kirienko
(Mechanics and controls, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Polytechnicheskaya St. 29-1, Russian Federation)
Oleg Shagniev
(Mechanics and controls, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Polytechnicheskaya St. 29-1, Russian Federation)
Sergei Tolstyakov
(Ioffe Institute, Polytechnicheskaya St. 26, Russian Federation)
Victor Modestov
(Mechanics and controls, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Polytechnicheskaya St. 29-1, Russian Federation)
