Research, manufacture, experiment on flexible rotor model
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lamtt@hcmute.edu.vnKeywords:
Flexible rotor, critical speed, Jeffcott rotor, unbalance, displacementAbstract
Ensuring the rotor to operate at high speed is one of the urgent requirements today. This paper analyzes some basic dynamics characteristics of the rotor on the basis of Jeffcott rotor model. The flexible rotor model that can operate at high speeds 12.000 rpm is controlled by inverter equipment that allows studying critical speeds 1, critical speed 2 (mode 1, mode 2) and laser Keyence G35 sensor used to displacement measure. Experimental results on the model have identified the theoretical critical speed (mode 1) is nl/t = 1115 rpm and the experimental results are nt/n = 1260 rpm with deviations <15%. This shows that the design model can be applied in practice for the evaluation of rotor operation and can also be used to determine critical speed 2 (mode 2).
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References
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Tran Thanh Lam, Research, proposed plan, design, fabrication balancing dynamic balancing machine for flexible bearings, Journal of Technical Education Science, Vol 37, 2016.
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