Mechanical Engineering ETDs
Characterization of a Small Electro-Mechanical Contact Using Non-Conventional Measurement Techniques
Publication Date
Spring 4-14-2017
Abstract
Currently there are limitations in computing chatter behavior of small electrical contacts embedded in components using finite element models. Reduced order models (ROM) have been developed of such electrical contact sub-assemblies to assess the chatter behavior of the contacts during vibration and shock environments. The current ROM method requires experimental validation. This ROM also neglects the damping effects of the viscous fluid that typically surrounds such sub-assemblies. Dynamic ring-down testing of the electrical contacts in air was performed and will provide a validation data set for the current ROM. Additionally, dynamic ring-down testing of the electrical contact was performed in fluids of varying viscosities that will help characterize the effect of the fluid on the contact for an improved ROM.
Keywords
Model Validation, Structural Dynamics, Fluid Effects on Structures, Piezo actuation, Laser Doppler Vibrometry, Small Structures
Degree Name
Mechanical Engineering
Level of Degree
Masters
Department Name
Mechanical Engineering
First Committee Member (Chair)
Dr. John J Russell
Second Committee Member
Dr. Yu-Lin Shen
Third Committee Member
Dr. Jill C Blecke
Sponsors
Sandia National Laboratories
Document Type
Thesis
Language
English
Recommended Citation
Johnson, Kelsey M.. "Characterization of a Small Electro-Mechanical Contact Using Non-Conventional Measurement Techniques." (2017). https://digitalrepository.unm.edu/me_etds/128
