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Published in:
2020 | OriginalPaper | Chapter
Diagnosis for Timing Gears Noise of a Diesel Generating Set
Authors : Wanyou Li, Chongpei Liu, Yunbo Hu, Shuwen Yu, BingLin Lv, Yibin Guo
Published in: Proceedings of the 13th International Conference on Damage Assessment of Structures
Publisher: Springer Singapore
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Abstract
There is an abnormal noise generated from the timing gears while practicing for the commissioning of a diesel generator set. As the load increases, this phenomenon becomes more apparent. In order to find the cause of the noise, a fault diagnosis model is established which considers not only the gears but also the effects of the associated structures. After eliminating the possible reasons such as the defects of timing gears, the abnormality of the valve system, fuel system controllers and generator, the injector problem is suspected to cause the fault. To verify this conjecture, the fuel injection pumps of the diesel generator set are inspected and the second injector is found to be blackened with some carbon deposition. By replacing the injector, the noise is gone. Hence, the fault diagnosis model can provide a new tool for future diagnosis of gear fault.