Banca de DEFESA: JOÃO DEHON DA ROCHA JUNIOR

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JOÃO DEHON DA ROCHA JUNIOR
DATE: 27/01/2020
TIME: 09:00
LOCAL: A Definir
TITLE:

Analysis of Wear on Radial Sliding Bearings of Pump Motors Using Low Cost Instrumentation

KEY WORDS:

Arduino. Submersible pumps. Vibration Analysis. Low Cost System.

PAGES: 89
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUMMARY:

The use of pumps installed in artesian wells for underground water extraction is a technique widely used in Brazil, especially in the Northeast, in places where drought is predominant during the year. In some regions, this extraction accounts for 70% of the population's water supply. Studies show that 50% of failures in electric motors start at the bearings and they represent only 30% of the total value of corrective maintenance. Given the above, the present work carried out a study on the radial bearings of the motors used in artesian wells. A low cost data acquisition system was developed through Arduino and MPU6050 sensor for capturing system vibration signals. The sensor was positioned close to the radial bearing. Five different bearing situations were analyzed. The first, with factory setting of 0.1 mm clearance between the shaft and bushing in the bearing, the second, third, fourth and fifth operating conditions were 0.2, 0.5, 1.0 and 3.0 mm of clearance, respectively. For each situation, the test was repeated six times for three minutes each. The data obtained in Arduino were studied through time and frequency domain analysis. For each operating condition it was possible to identify an operating pattern. Based on this, a diagnostic methodology for the study target engine was developed and put to the test in a case study.

BANKING MEMBERS:
Presidente - 1640260 - JOSE JOSEMAR DE OLIVEIRA JUNIOR
Interno - 1445637 - WALLACE MOREIRA BESSA
Externo à Instituição - JOSE ALVARO DE PAIVA - IFRN