DESIGN, MANUFACTURE AND PERFORMANCE EVALUATION OF A MISALIGNMENT MEASUREMENT SYSTEM WITH DOUBLE RADIAL METHOD

• Main Author: Jonathan Gunawan, Christian
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/79281
• Institution: Institut Teknologi Bandung

Shaft misalignment is a condition in which two connected rotating machine shafts are not on the same rotational axis. This condition can result in high vibration and premature engine failure. The misalignment is corrected through shaft alignment based on misalignment measurement results. Measurements can be made using a laser or dial indicators measuring instrument. Laser measuring instruments are practical but require high investment costs compared to dial indicators. Meanwhile, the dial indicator is relatively cheaper but less practical because it requires a manual reading and interpretation of data. This process has the potential to cause errors in reading and interpreting data. Therefore in this study, a misalignment measurement system was created to bridge the problems in those two measuring instruments. This research will carry out the design, manufacture and performance evaluation of of a misalignment measurement and interpretation systems based on Arduino and Matlab. The system uses two digital dial indicators so a double radial method can be applied. This system was also equipped with a sensor module MPU6050 to measure the angle of rotation of the shaft. The digital dial indicator and the MPU6050 sensor module were connected to the Arduino for early signal processing purposes. The results of this processing were sent to a computer via the HC-05 bluetooth module for advanced signal processing. Advanced processing was carried out using a user interface. This user interface was created with Matlab App Designer. This user interface works automatically to provide a recommendation of inboard and outboard foot shifts in order to minimize misalignment. Based on the experimental tests carried out, the misalignment measurement system has similar performance to measurement using an analog dial indicator with face and rim method. Both measurements have different correction values in the amount of 1-3% for push button mode and 2-5% for graph mode which relies on the MPU6050 sensor.