ディーゼル主機関予防保全システム

Abstract

Advances in ship automation systems in recent years have resulted in lower manpower requirements on board, especially in engine rooms. Fewer crew members and shorter service time on board, however, have raised new problems i.e. less attention paid to engine performance and maintenance compared to more fully manned conventional ships. Furthermore, shipowners and engine builders have not been able to properly forecast possible engine troubles or schedule maintenance programs for individual ships based on data accumulated on a large number of ships in service.In response to this problem, Yamashita-Shinnihon Steamship Co., Ltd. and Hitachi Zosen have jointly developed a new maintenance system for main diesel engines combining the expertise and experience of both a ship operator and engine builder, respectively.The objective of the system is to maintain in-service engines in satisfactory working condition at all times to promote the safety and operational rates of ships. The system is designed to keep the latest information on the operational status and condition of each main engine, and to determine maintenance schedules, parts supplies and provide technical data from the standpoint of preventive maintenance.The new system comprises two sub-systems. The first is a Data Processing system which centrally controls and processes all incoming information by a large computer. The second is an Operations System, which gives the final output using the data analyzed and processed in the Data Processing system to provide information on technical data, maintenance, repair work and parts supplies for each engine.