TY - GEN
T1 - Internal sensing and actuation strategies for smart machine rotors
AU - Jiménez, Samuel
AU - Keogh, Patrick
AU - Cole, Matthew
PY - 2015
Y1 - 2015
N2 - The use of rotor-mounted sensors and actuators in active vibration control of rotating machinery has the potential to overcome certain limitations of conventional stator-mounted components. A test system has been constructed to evaluate internal sensing and actuation strategies, where components are mounted within a hollow-shaft rotor. MEMS accelerometers are used to measure the vibration-induced acceleration of the rotor centre in the rotating frame of reference. With appropriate calibration and processing, this data can be used as a substitute for rotor displacement measurements. The results presented show how measurement accuracy tends to increase with rotational speed. As the accelerometers are located within the rotating reference frame, identification of the magnitude and phase of the rotor unbalance can be performed directly without the need for correlating fixed frame measurements with timing marks. Experimental results for sub-critical operation of the test system and comparison with theoretical predictions show the effectiveness of the system.
AB - The use of rotor-mounted sensors and actuators in active vibration control of rotating machinery has the potential to overcome certain limitations of conventional stator-mounted components. A test system has been constructed to evaluate internal sensing and actuation strategies, where components are mounted within a hollow-shaft rotor. MEMS accelerometers are used to measure the vibration-induced acceleration of the rotor centre in the rotating frame of reference. With appropriate calibration and processing, this data can be used as a substitute for rotor displacement measurements. The results presented show how measurement accuracy tends to increase with rotational speed. As the accelerometers are located within the rotating reference frame, identification of the magnitude and phase of the rotor unbalance can be performed directly without the need for correlating fixed frame measurements with timing marks. Experimental results for sub-critical operation of the test system and comparison with theoretical predictions show the effectiveness of the system.
UR - http://www.scopus.com/inward/record.url?scp=84937405433&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1007/978-3-319-06590-8_125
U2 - 10.1007/978-3-319-06590-8_125
DO - 10.1007/978-3-319-06590-8_125
M3 - Chapter in a published conference proceeding
AN - SCOPUS:84937405433
SN - 9783319065892
T3 - Mechanisms and Machine Science
SP - 1527
EP - 1537
BT - Proceedings of the 9th IFToMM International Conference on Rotor Dynamics
PB - Springer
CY - Switzerland
T2 - 9th IFToMM International Conference on Rotor Dynamics, 2014
Y2 - 22 September 2014 through 25 September 2014
ER -