pluck Pluck vibration test system of electromagnet type for mock fuel assembly

摘要

The present invention relates in particular to a vibration test system provided with means for towing a fuel assembly to an exact position and immediately detaching it, the housing 50 being installed one at a different position along the longitudinal direction of the housing 50. And a band-shaped material composed of a plurality of displacement sensors 60 for capturing horizontal displacement of the nuclear fuel assembly in real time, and a rigid member for binding the simulated nuclear fuel assembly N, by wrapping the body of the assembly together with the assembly. It is installed at a fixed position of the variable assembly fixture jig 40 and the housing 50, the pulsing nuclear fuel assembly (N) by a predetermined length in the horizontal direction and then released to release the vibration in the nuclear fuel assembly in the housing (50) Consisting of the excitation section 30 to add, while having a simple configuration, while standing up vertically, Vibration characteristics of the fuel assembly installed in the sieve can be checked, and after the vibration is added to the fuel assembly, the contact between the fuel assembly and the vibration adding means can be immediately disconnected, so that the fuel assembly and the support grid S without any external restraint. It is intended to provide a pluck vibration test system of a simulated fuel assembly (N), which is configured to measure its own free vibration, so that the vibration characteristics of the fuel assembly and the support grid (S) can be checked accurately.