Experimental characterization of the dynamic response of a mock-up CANDU fuel bundle

This thesis discusses the vibration response of a mock-up CANDU 37M fuel bundle. The experiments are performed using non-invasive methods of vibration measurement by means of high-speed cameras and laser displacement sensors. The contact dynamics between the fuel bundle and the pressure tube are replicated using a high precision custom-made setup. Also, the contact between the fuel bundle and the neighboring fuel bundles are replicated using dummy endplates. The results show that the fundamental frequency of the fuel elements changes depending on the contact conditions with the neighboring fuel bundles. Furthermore, the endplates exhibit a complex vibration response with multiple dominant vibration frequencies that include the fundamental frequency of the fuel rods. The results of this experimental work provide a consistent and accurate characterization of the damping ratios and mode shapes of the fuel rods and the whole bundle including the endplates.

Name thesis:degree_name

Master of Applied Science (MASc)

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Ontario Institute of Technology

Year dc:date.issued

2023

Author dc:creator

• Saudy, Ali

Advisor dc:contributor.advisor

• Mohany, Atef

Language dc:language.iso

en

Handle dc:identifier.uri

https://hdl.handle.net/10155/2078

OAI identifier oai:identifier

oai:ontariotechu.scholaris.ca:10155/2078