| Title |
A Failure Physics Approach to CBM for Piston Main Air Compressors |
| Authors |
박수중(Park, Soo Choong); 김시곤(Kim, Si Gon) |
| DOI |
https://doi.org/10.12652/Ksce.2025.45.6.0811 |
| Keywords |
상태기반정비(CBM); 고장물리; 피스톤방식 주공기 압축기; 고장메커니즘 CBM(Condition Based Maintenance); Failure physics approach; Main air compressors; Failure mechanisms |
| Abstract |
This paper aims to analyze the physical failure mechanism of main air compressors and propose a Condition-Based Maintenance(CBM) system that can predict the occurrence of failure based on the analysis. Physics of Failure (PoF) analysis can identify the degradation patterns of specific components, and sensors can be selected and designed to monitor these degradation characteristics. In this study, we analyze the function of the main devices of main air compressors from a failure physics perspective, analyze the physical change process based on actual failure cases, and propose a CBM application plan. First, the temperature of the compressor motor, valves, piping, etc. is measured in real time using temperature sensors to detect thermal abnormalities, which is useful for identifying wear, lack of lubrication, and deterioration inside the compressor. Second, the vibration monitoring method measures the vibration status of the main parts of the compressor, such as motors, bearings, and couplings, in real time using vibration sensors, and analyzes abnormal vibration patterns. This proposal can contribute to improving the reliability of railroad vehicles and increasing operating efficiency, and ultimately contribute to reducing maintenance costs and improving facility utilization through effective implementation of a predictive maintenance system. |