TY - GEN
T1 - Digital control algorithms for microgravity isolation systems
AU - Sinha, A.
AU - Wang, Y. P.
N1 - Funding Information:
This work has been supported by the NASA Grant NAG-3- 949. The authors wish to thank Mr. C. M. Grodsinsky for useful discussions.
Publisher Copyright:
© 1991 Proceedings of the ASME Design Engineering Technical Conference.
PY - 1991
Y1 - 1991
N2 - New digital control algorithms have been developed to achieve the desired transmissibility function for a microgravity isolation system. Two approaches have been presented for the controller design in the context of a single degree of freedom system for which an electromagnet is used as the actuator. The relative displacement and the absolute acceleration of the mass have been used as feedback signals. The results from numerical studies are presented. It has been found that the resulting transmissibility is quite close to the desired function. Also, the maximum coil currents required by new algorithms are smaller than the maximum current demanded by the previously proposed phase lead/lag method.
AB - New digital control algorithms have been developed to achieve the desired transmissibility function for a microgravity isolation system. Two approaches have been presented for the controller design in the context of a single degree of freedom system for which an electromagnet is used as the actuator. The relative displacement and the absolute acceleration of the mass have been used as feedback signals. The results from numerical studies are presented. It has been found that the resulting transmissibility is quite close to the desired function. Also, the maximum coil currents required by new algorithms are smaller than the maximum current demanded by the previously proposed phase lead/lag method.
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U2 - 10.1115/DETC1991-0391
DO - 10.1115/DETC1991-0391
M3 - Conference contribution
AN - SCOPUS:85104797662
T3 - Proceedings of the ASME Design Engineering Technical Conference
SP - 247
EP - 256
BT - 13th Biennial Conference on Mechanical Vibration and Noise
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1991 Design Technical Conferences, DETC 1991
Y2 - 22 September 1991 through 25 September 1991
ER -