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Magnetohydrodynamic pressurization of liquid metal bearings

1962; Elsevier BV; Volume: 5; Issue: 3 Linguagem: Inglês

10.1016/0043-1648(62)90004-2

1873-2577

R. A. Elco, W. F. Hughes,

Astro and Planetary Science

The concept of the magnetohydrodynamic bearing is introduced and two types of bearings are analyzed. First a hydrostatic thrust bearing with an axial current induced pinch is considered. It is shown that the load capacity can be increased and with no flow or external pressurization a load can be sustained because of the “pinch” effect. However, the magnitude of this pressurization is very small for physically practical values of current. The second bearing considered is the infinite inclined slider with an applied magnetic field parallel to the bearing surface and perpendicular to the direction of motion of the slider. For this type of bearing the pressure distribution, load capacity, and electrical characteristics are calculated and it is shown that useful electromagnetic pressurization can be obtained with reasonable values of magnetic field strength and current.