Study On Comprehensive Assessment System Of Diesel Engine Test-bed Running-in Quality

As a key link of last process in production, the importance of diesel engine running-in on test bed has been approved owing to vital effect on the safety, reliability and lifetime.During the last twenty years, though a lot of studies were focused on the diesel engine running-in, the systematic integrity appeared insufficient in both the theory and experiment.In this text, the study was conducted to the diesel engine running-in on test bed by advanced Oil Analysis, Surface Analysis and Characteristic parameters analysis of diesel engine during running-in. Based on the spectrographic analysis, ferrographic analysis, particle counting, and scanning electronic microscope analysis, the extraction of lubricant analysis results have been completed by various methods as limits method, fuzzy synthesis analysis, tendency chart analysis. On the basis of information, issued from above analysis the quality comprehensive assessment model of diesel engine running-in has been established, used to assess the diesel engine running-in quality and engine test-bed running-in quality.The study on comprehensive assessment of diesel engine test-bed running-in quality make us enable to recognize the original state of diesel engine, improve lubricant capacity of wear mates, increase reliability and lifetime of diesel engine. This can not only bring remarkable economic benefit, but also resolve various problems of diesel engine in running-in process. The results are subservient to accomplish systematism and standardization of running-in technology.The studying means, studying method and studying achievement are universal applicable to running-in study of marine engine, automotive engine and locomotive engine.It is available to accumulate the achievement and experience of the diesel engine running-in study by developing the diesel engine running-in quality synthesis valuation system. This offers better basis for the future study.