Charles, P., Sinha, Jyoti K., Gu, Fengshou and Ball, Andrew (2010) Application of novel polar representation method for monitoring minor engine condition variations. Mechanical Systems and Signal Processing, 24 (3). pp. 841-843. ISSN 0888-3270

In an earlier study, a Noval Polar Presentation (NPP) method has been suggested to detect the engine combustion-related faults for medium-speed diesel engines. The earlier proposed NPP method basically used the signature of the crankshaft torsional vibration to identify the faulty cylinder accurately. However, the detection of only a large fault like the cylinder misfiring for the 2 typical engines (16-cylinder and 20-cylinder engines) has been demonstrated in the earlier study. Now the usefulness of the NPP method in detection of even a very small level of the engine combustion fault like an earlier or later opening of the fuel injection valve by just a few degrees has been presented here.

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