naa a22 4500 510823424 CHVBK 20180411083544.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s12541-013-0228-2 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0228-2 Monitoring of bearing wear in a marine engine by change of piston position — Effect of wear and inertia [Elektronische Daten] [Pradipta Biswas, Jung Ahn, Hyo Lee] Wear monitoring of the journal bearings is one of the biggest issue in a marine engine because it can cause failure of the system without prior notice. BMW (Bearing Wear Monitoring), which is an indirect method to monitor the bearing wear using a change of the bottom dead center level of a piston, seems to be an effective way to monitor the bearing wear in real engine operation but it is important to separate the effect due to the wear from the other due to the inertia and the load. In this paper the characteristics of wear effect and inertia effect are investigated theoretically and simulated to find their differences. Several previous researches on bearing wear are used to calculate the wear depth with a given real engine specification. The inertia effects are investigated in a real engine with speed varied. A motor driven crank-slider is used to measure the total effects instead of a real engine. It proves that the two effects are separated so that the bearing wear can be monitored by measuring the change of the bottom dead center level of the engine piston. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Eddy current sensor nationallicence Journal bearing nationallicence Wear nationallicence Marine engine nationallicence Biswas Pradipta Department of Mechanical and Intelligent Systems Engineering, Pusan National University, Jangjeon 2-dong, Geumjeong-Gu, 609-735, Busan, South Korea aut Ahn Jung School of Mechanical Engineering, Pusan National University and ERC/NSDM, Jangjeon 2-dong, Geumjeong-Gu, 609-735, Busan, South Korea aut Lee Hyo Department of Mechanical and Intelligent Systems Engineering, Pusan National University, Jangjeon 2-dong, Geumjeong-Gu, 609-735, Busan, South Korea aut International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/10(2013-10-01), 1697-1701 2234-7593 14:10<1697 2013 14 12541 https://doi.org/10.1007/s12541-013-0228-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0228-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Biswas Pradipta Department of Mechanical and Intelligent Systems Engineering, Pusan National University, Jangjeon 2-dong, Geumjeong-Gu, 609-735, Busan, South Korea aut NATIONALLICENCE 700 1- Ahn Jung School of Mechanical Engineering, Pusan National University and ERC/NSDM, Jangjeon 2-dong, Geumjeong-Gu, 609-735, Busan, South Korea aut NATIONALLICENCE 700 1- Lee Hyo Department of Mechanical and Intelligent Systems Engineering, Pusan National University, Jangjeon 2-dong, Geumjeong-Gu, 609-735, Busan, South Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/10(2013-10-01), 1697-1701 2234-7593 14:10<1697 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer