YANG Jin-fu, CHEN Ce, LIU Yu-han, et al. Experimental on nonlinear vibration characteristics of high-speed rotor bearings system with compressor and turbine structure[J]. 2011, 26(10).
YANG Jin-fu, CHEN Ce, LIU Yu-han, et al. Experimental on nonlinear vibration characteristics of high-speed rotor bearings system with compressor and turbine structure[J]. 2011, 26(10).DOI:
Based on gas-dynamic bearings and frequency coupled modulation of rotor-bearing system
the characteristics of rotor bearing system's nonlinear vibration experimental investigations were applied to high-speed air cycle refrigerator.Furthermore
some nonlinear characteristics
for example
the motion of rotor
bearings instability and rub-impact which always happen on the flexible shaft
were analyzed.The results show that
if the design margin of safe speed is guaranteed
the steady running speed of the rotor-bearings system can be effectively increased from 40000r/min to 60000r/min above.