Development and Testing of Time Synchronous Averaging Software Offline Method

• Main Author: Sofian Permana-231 15 004, Risnandar
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/30540
• Institution: Institut Teknologi Bandung

Time Synchronous Averaging (TSA) method has been widely used by researchers for <br /> <br /> vibration signal analysis. One of them is Dynamics Laboratory ITB that has built and tested <br /> <br /> TSA program. However, the program is still manually operated that operator must edit the <br /> <br /> program first before TSA operation to adjust the measurement setup condition. Therefore, an <br /> <br /> automatic TSA program is needed to avoid human error. This research is intended to build a <br /> <br /> TSA program that operate automatically. <br /> <br /> In this research, the TSA program is built in LabVIEW® 2017 from National <br /> <br /> Instrument. The TSA software works offline, it means the averaging process is performed <br /> <br /> after vibration data had been recorded by other software. Afterward, the TSA software is <br /> <br /> tested in unbalance and an outer-ring-defect roller-bearing cases. <br /> <br /> The test result in unbalance case, shows that the TSA program is able to separate the <br /> <br /> synchronous signal (to reference signal) from the asynchronous ones. However, the <br /> <br /> frequency of 1XRPM (synchronous frequency) is slightly shifting due to signal data cut off <br /> <br /> during TSA process. Furthermore, the testing result on roller bearing case shows that the <br /> <br /> impact series due to outer ring defect is not detected in TSA signal. This phenomenon occurs <br /> <br /> since the BPFO frequency is not synchronous to the shaft frequency used as reference.