Frank Laboratory of Neutron Physics
Seminar on the safety of nuclear physics facilities
Chair: Yuri Pepelyshev
Date and Time: Thursday, 12 March 2026, at 10:30 AM
Venue: Conference hall, Frank Laboratory of Neutron Physics
Seminar topic: “Study of the influence of coolant flow on transverse vibrations of a fuel rod of a pulsed reactor”
Speaker: Aleksandr Verkhoglyadov
Abstract:
The work presents an experimental study of transverse vibrations of a model fuel rod of the IBR-2 reactor in a liquid flow. The influence of the direction and velocity of the fluid, as well as the method of fixing the fuel rod on its natural frequencies, damping decrement and oscillation amplitude in a turbulent flow is investigated. The obtained results are necessary for constructing a model of the dynamics of a periodic pulsed reactor and developing the design of a new neutron source.