Research on torsional vibration noncontact measurement of rotary machine

Zong Meng; Bin Liu

doi:10.1117/12.716153

13 October 2006 Research on torsional vibration noncontact measurement of rotary machine

Zong Meng, Bin Liu

Proceedings Volume 6280, Third International Symposium on Precision Mechanical Measurements; 62801R (2006) https://doi.org/10.1117/12.716153
Event: Third International Symposium on Precision Mechanical Measurements, 2006, Urumqi, China

Abstract

Based on laser Doppler effect, single section rotational speed of a rotating shaft was measured. By measuring the two sections rotational speed, the difference of the rotational speed between the two could be made. Integrating the rotational speed difference, the relative torsional angle of the two sections under the action of torsional virbration was received, so the rotating shaft torsional vibration was gotten. Non-contact torsional vibration measurement of rotary machine was achieved. The system was designed and the experiment was done on the torsional vibration experiment equipment. The result of experimentation indicate that the relative error between Laser Doppler and conventional torsional vibration measuring method that was less than 0.2%, and the measurement accuracy of Laser Doppler was high.

Citation Download Citation

Zong Meng and Bin Liu "Research on torsional vibration noncontact measurement of rotary machine", Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 62801R (13 October 2006); https://doi.org/10.1117/12.716153

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