PROTOTYPE OF BEARING CONDITION MONITORING SYSTEM ON CONVENTIONAL LATHE SPINDLE BASED ON VIBRATION DATA

• Main Author: Roja Wa'dalloh, Kholish
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/81054
• Institution: Institut Teknologi Bandung

Damage to the bearing component in the spindle of a lathe machine can significantly reduce productivity and precision. The bearing ensures that the spindle remains parallel to the bed without deflection and excessive vibrations. In an effort to prevent damage to the bearing component in the spindle to a certain extent, a monitoring method is required to provide information about the condition of components prone to damage of bearing in a conventional lathe machine's spindle to detect damage in real-time through a web application. The aim of this research is to inform the real-time condition of lathe machine components and categorize their conditions based on predetermined categories. In its implementation, monitoring involves three general stages: obtaining input data, data processing, and presenting and summarizing the data. This research has implemented a prototype monitoring system for the NARA 4308 lathe machine bearing in the spindle. After completing the system, calibration was performed, resulting in the correction equation for the z-axis vibration sensor, Z’ = (Z-39.962)/1044.5. The RMS speed in the prototype produces data is 13,16 mm/s and good status vibration severity condition. The prototype generates a range of frequency values with 0.08 Hz and if the generated frequency values are multiples of the vibration frequencies BPFO, BPFI, FTF, and BSF then the pattern frequency of damaged bearing component will be detected.