Dynamics considerations for a magnetically suspended flywheel

Author

Lashley, C.M. ; Ries, D.M. ; Zmood, R.B. ; Kirk, J.A. ; Anand, D.K.

Author_Institution

Dept. of Mech. Eng., Maryland Univ., College Park, MD, USA

fYear

1989

fDate

6-11 Aug 1989

Firstpage

1505

Abstract

The design of a magnetically suspended flywheel energy storage system for satellite applications is optimized. An inner-ring interference of 0.006 is found to be greatly beneficial for an inner radius growth of 8.7 mil at speed. The optimum amount of iron present in the inner ring is shown to be 5.5 lb for this flywheel. Modal testing is used to obtain the natural frequencies and mode shapes of a flywheel system prototype. These results are used to suggest design modifications to remove resonances from the operating range. If this is found to be impossible, the results can be used to verify a mathematical model which can be used to study improved control system designs

Keywords

artificial satellites; energy storage devices; space vehicle power plants; control system designs; energy storage system; inner-ring interference; magnetically suspended flywheel; mathematical model; modal testing; satellite applications; Design optimization; Energy storage; Flywheels; Frequency; Interference; Iron; Magnetic levitation; Satellites; Shape; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Engineering Conference, 1989. IECEC-89., Proceedings of the 24th Intersociety

Conference_Location

Washington, DC

Type

conf

DOI

10.1109/IECEC.1989.74668

Filename

74668