Analysis of Cracks in the Main Drive Motor Shaft of Reciprocating Natural Gas Compressor
A failure analysis was conducted on the crack fault of the main drive motor shaft of a reciprocating natural gas compressor.The cause of the crack in motor shaft was identified through analysis of the operating conditions of compressor unit before the accident,torsional vibration analysis review,crack appearance analysis,crack electron microscopy scanning analysis,metallographic analysis,mechanical performance analysis,chemical analysis,etc.The analysis results indicate that there is a welding layer with a thickness of about 1.7 mm on the surface of motor shaft,which is the direct cause of the cracks on the main drive motor shaft of compressor in this case.
reciprocating natural gas compressormotor shaftcracksfailure analysistorsional vibration analysiswelding layer