Superconducting electromagnets for large wind tunnel magnetic suspension and balance systemsA superconducting electromagnetic suspension and balance system for an 8 x 8-ft, Mach 0.9 wind tunnel is presented. The system uses a superconducting solenoid as a model core 70 cm long and with a 11.5 cm OD, and a combination of permanent magnet material in the model wings to produce the required roll torque. The design, which uses an integral cold structure rather than separate cryostats for mounting all control magnets, has 14 external magnets, including 4 racetrack-shaped roll coils. Helium capacity of the system is 3.0 to 3.5 l with idling boiloff rate predicted at 0.147 to 0.2 l/h. The improvements yielded a 50-percent reduction in the system size, weight, and cost.
Document ID
19850039395
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Boom, R. W. (Madison Magnetics Inc., WI, United States)
Eyssa, Y. M. (Madison Magnetics Inc., WI, United States)
Mcintosh, G. E. (Madison Magnetics Inc., WI, United States)
Abdelsalam, M. K. (Madison Magnetics, Inc. Madison, WI, United States)
Scurlock, R. G. (Madison Magnetics Inc., WI, United States)
Wu, Y. Y. (Madison Magnetics Inc., WI, United States)
Goodyer, M. J. (Madison Magnetics Inc., WI, United States)
Balcerek, K. (Madison Magnetics Inc., WI, United States)
Eskins, J. (Southampton, University Southampton, United Kingdom)
Britcher, C. P. (NASA Langley Research Center Hampton, VA, United States)