Study on Influence of Internal Combustion Engine Test on Crankshaft Axial Trajectory
The internal combustion engine bench test needs to be connected with the test equipment,and the centering accuracy and connection mode of the connection directly affect the Test quality.In this paper,the in-fluence of different centering accuracy on the axis trajectory of internal combustion engines is studied,the control range of centering accuracy is determined,and the influence of maintenance and connection mode is confirmed by measuring the corresponding relationship between vibration and speed during the test process,it provides a refer-ence basis for the alignment accuracy,maintenance and connection scheme of the internal combustion engine de-velopment test process.The research shows that the axis trajectory deviates when the centering accuracy exceeds 0.5mm;Regular maintenance during the test can reduce the influence of centering deterioration;The vibration of the main bearing should be monitored for high-speed internal combustion engine,and the connection scheme should be formulated according to the measurement results.
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