一、前言为了保持船用主机及其动力装置系统在实际航行时的最佳性能,柴油机制造厂研究了调整和保养的方法。根据外界条件(周围环境温度、大气压力、所用燃料、装载情况及船体污染程度等),熟练的船员结合主机使用年限对主机的性能进行综合诊断,以做必要的调整与维修。但由于未来船员的减少和频繁的更换, I. INTRODUCTION In order to maintain the best performance of marine main engines and their power plant systems in actual navigation, the diesel engine manufacturer has studied the methods of adjustment and maintenance. According to the external conditions (ambient temperature, atmospheric pressure, fuel used, loading conditions and the degree of pollution of the hull, etc.), skilled crews combined with the useful life of the host computer to conduct a comprehensive diagnosis of the performance of the host to make the necessary adjustments and maintenance. However, due to the reduction of future crew members and frequent replacement,