Fault Tree Analysis and Failure Diagnosis of Marine Diesel Engine Turbocharger System
Fault Tree Analysis and Failure Diagnosis of Marine Diesel Engine Turbocharger System
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DOI：
10.3390/jmse8121004
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发表时间：
2020-12-01
影响因子：
2.9
通讯作者：
Culin, Jelena
中科院分区：
文献类型：
--
作者：
Knezevic, Vlatko;Orovic, Josip;Culin, Jelena
船舶推进系统的可靠性取决于柴油机几个子系统的可靠性。增压空气系统是船用柴油机的重要子系统之一，而涡轮增压器又是其重要组成部分。采用故障树分析法对某涡轮增压器的故障进行分析，以评价系统的可靠性，预测故障原因。采用定量的方法对涡轮增压器系统故障发生的概率进行了评估。在Wartsila-Transas发动机模拟器上，对某型船用二冲程柴油机的空气滤清器堵塞、压气机结垢、涡轮机结垢（排气侧）、冷却管堵塞和冷却空气侧堵塞等主要故障进行了模拟。通过仿真得到的结果可以提供改进的维修计划，推进系统的可靠性和涡轮增压器的操作优化在开发时间。
The reliability of marine propulsion systems depends on the reliability of several sub-systems of a diesel engine. The scavenge air system is one of the crucial sub-systems of the marine engine with a turbocharger as an essential component. In this paper, the failures of a turbocharger are analyzed through the fault tree analysis (FTA) method to estimate the reliability of the system and to predict the cause of failures. The quantitative method is used for assessing the probability of faults occurring in the turbocharger system. The main failures of a scavenge air sub-system, such as air filter blockage, compressor fouling, turbine fouling (exhaust side), cooler tube blockage and cooler air side blockage, are simulated on a Wartsila-Transas engine simulator for a marine two-stroke diesel engine. The results obtained through the simulation can provide improvement in the maintenance plan, reliability of the propulsion system and optimization of turbocharger operation during exploitation time.