Analysis of the Influence of the Environment on the Application of the Electromechanical Impedance (EMI) Technique in the Monitoring of Manufacturing Processes

• Grant number: 24/18155-5
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: December 01, 2024
• End date: November 30, 2025
• Field of knowledge: Engineering - Electrical Engineering
• Principal Investigator: Fábio Isaac Ferreira
• Grantee: Letícia de Oliveira Guedes
• Host Institution: Faculdade de Engenharia (FE). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

The electromechanical impedance (EMI) technique has been investigated in different applications, such as civil construction, aeronautics and manufacturing processes. In manufacturing, the use of the technique for process monitoring has shown potential to replace conventional monitoring techniques, such as acoustic emission. However, its implementation in the field is still a challenge due to environmental factors that affect measurements, such as temperature and vibration. Previous studies have investigated the technique and found correlations with process parameters only in a controlled environment, but field investigations have not yet been reported. Therefore, the objective of this work is to investigate how environmental factors present in manufacturing environments affect EMI measurement. To this end, EMI tests will be carried out in manufacturing processes, varying environmental parameters such as temperature. The EMI signals will be digitally processed in order to find correlations between the signals and changes in environmental factors. Initially, tests will be carried out on 3D printing (additive manufacturing) and grinding (subtractive manufacturing), the equipment for which is available in the laboratory of the supervisor and partners. With these results, it is hoped to identify how environmental factors affect the use of the EMI technique in the manufacturing environment in order to make it feasible to use the technique in the field. It is worth noting that, in addition to the scientific contribution of the proposal, the theme of this work will have synergy with the research group of the Industrial Automation Research Laboratory (LAI) of the University of São Paulo (USP), in São Carlos/SP, and with the research group of the Aerospace and Technology Campus of Kansas State University, in Salina/USA. The advisor has a partnership with both groups, as evidenced by the advisor's research history, which are coordinated, respectively, by Prof. Dr. Pedro de Oliveira Conceição Junior and Prof. Dr. Mark James Jackson.