船舶柴油机在线监测与故障诊断系统的关键技术研究

近年来,我国国民经济增长率一直保持在10%左右,高速发展的经济,给海运业的发展带来了机遇。从中国海运实现的利润来看,1997年为负增长,2004年达到了历史的最高点,实现利润85亿元。高额利润率吸引了大量资金的涌入,海运业迅速发展壮大。台州辖区的运力发展也不例外,运力规模发展至今已拥有近190万吨;水运企业也由以国有企业为主转变为以民营股份企业占90%以上。但是海运业毕竟是一个高风险产业,一方面要受到全球经济和国家宏观经济调控的影响;另一方面要受到企业成本增加和市场竞争加剧的影响。因此,我们有必要对当前航运市场进行分析,从中获取相关的市场信息。

Study on the key technique of diesel engine online monitoring and fault diagnosis system

The theory and the method of the online condition monitoring and fault diagnosis based on DSP is introduced. The system can detect engine states,diagnose faults ,and foresee service on-line. When the sensors are used in on-line monitoring system,a sensor array is composed and RBF is used to reduce errors,the fault diagnosis and forecasting by means of expert system and grey theory the instruments are developed to monitor different faults of the diesel engine.