Cracks in Marinemainengine or auxiliary engine body may lead to scrap of the machine or serious accident, which is a badly hidden trouble for safety of a vessel.
船舶主辅机机体裂纹的延伸会导致机器报废或发生严重机损事故，这对船舶安全营运是一大隐患。
2
Test to reliability of remote-control system of marinemainengine is very important, for it concerns much with the safety of marine power set, even the ship itself.
船舶主机遥控系统的可靠性， 关系到船舶动力装置及整个船舶的安全， 对其可靠性的检验尤为重要。
3
This paper proposes a method to build up a model of a Marinemainengine based on BP neural network. A new method of selecting leaning rate is also stated using dynamic optimal algorithm.