Condition diagnostics and performance estimation on a 580GT class passenger and car-ferry ship propulsion system
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초록
Condition based maintenance method of rotating machineries generally applies vibration monitoring and analysis technique. The vibration response is an ideal source of information relevant to the machine condition. In addition, real-time vibration measurement and analysis data can provide fault diagnosis and performance of the machine. For the complex propulsion shafting system vibration monitoring, a number of components will be checked simultaneously and this necessitates a reliable and efficient monitoring system. Likewise, continuous monitoring of vibration data will require large storage capacity for the purpose of performance prediction and future investigation. In this paper, a global vibration and ship performance measurement were carried out on a coastal trade 580GT class passenger car-ferry propulsion shafting system. Correlation between propulsion shafting system parameters such as ship speed, propeller shaft rpm, torque and power were analyzed. Further, the EDiMs (Energy Efficiency Design Index or Operation Index Monitoring System) and EVAMOS (Engine/Rotor Vibration Analysis and Monitoring System) software were utilized to record and analyze all measurement signals including ship position (latitude and longitude) and at the same time have the capability to store large data. Results herein are made as basis for condition diagnostics and performance estimation of the propulsion shafting system.
Abstract
Condition based maintenance method of rotating machineries generally applies vibration monitoring and analysis technique. The vibration response is an ideal source of information relevant to the machine condition. In addition, real-time vibration measurement and analysis data can provide fault diagnosis and performance of the machine. For the complex propulsion shafting system vibration monitoring, a number of components will be checked simultaneously and this necessitates a reliable and efficient monitoring system. Likewise, continuous monitoring of vibration data will require large storage capacity for the purpose of performance prediction and future investigation. In this paper, a global vibration and ship performance measurement were carried out on a coastal trade 580GT class passenger car-ferry propulsion shafting system. Correlation between propulsion shafting system parameters such as ship speed, propeller shaft rpm, torque and power were analyzed. Further, the EDiMs (Energy Efficiency Design Index or Operation Index Monitoring System) and EVAMOS (Engine/Rotor Vibration Analysis and Monitoring System) software were utilized to record and analyze all measurement signals including ship position (latitude and longitude) and at the same time have the capability to store large data. Results herein are made as basis for condition diagnostics and performance estimation of the propulsion shafting system.
참고문헌 (5)
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- L. S. Moscoso, "Statistical parameters extraction of the vibration signals of a gearbox for machine diagnosis", Inter-noise 2015, ~ (2015)
- G. Strasser, "A verification of the ITTC", ISO speed, Journal of Marine Science and Technology, pp.2015, 20(1)[DOI]
- 이돈출, "Synchronization and identification of ship shaft power and speed for energy efficiency design index verification", 한국마린엔지니어링학회지, 38(2), pp.123~132 (2014), 한국마린엔지니어링학회[DOI]
- Dynamics Lab of Mokpo National Maritime University, "Torsional Vibration Calculation for Project BS15-55, Document No. MDL-16051", ~ (2016)