HIGH-SPEED TRANSPORTATION VIA MAGNETICALLY SUPPORTED VEHICLES. A STUDY OF THE MAGNETIC FORCES

THE PARAMETERS AFFECTING THE MAGNETIC BUOYANCY AND RESISTANCE FORCES WERE ANALYZED FOR A VEHICLE EQUIPPED WITH SUPPORTING MAGNETS WHICH IS SUSPENDED ON A CONDUCTING TRACK-BED. IN PARTICULAR THE EFFECT OF A TRACK-BED OF FINITE WIDTH WAS INVESTIGATED. THE MEASUREMENTS EXTENDED TO THE FORCES ACTING ON A PERMANENTLY EXCITED SUPERCONDUCTING COIL, THE COIL BEING SUSPENDED OVER A ROTATING ALUMINIUM WHEEL WITH PERIPHERAL SPEEDS UP TO 480 KM/H. CALCULATIONS AND MEASUREMENTS SHOWED THAT THE IMPORTANT PARAMETER IS THE REYNOLDS NUMBER LAMBA = VH (MU) (SIGMA), WHERE MU AND SIGMA REPRESENT THE PERMEABILITY AND CONDUCTIVITY OF THE TRACK-BED, V THE VELOCITY OF THE VEHICLE AND H THE OPERATIONAL HEIGHT OF THE MAGNET OF THE VEHICLE. THE EFFICIENCY OF THE SYSTEM, EXPRESSED AS THE RATIO OF THE BUOYANCY TO THE RESISTANCE, IS PROPORTIONAL TO THE SQUARE ROOT OF LAMBA. /TR/

• Supplemental Notes:
  • Vol 5, No 3, PP 197-209, 5 FIG, 2 TAB, 11 REF,
• Authors:
  • BORCHERTS, R H
  • Reitz, J R
• Publication Date: 1971-8

Media Info

• Serial:
  • Transportation Research /UK/
  • Publisher: Pergamon Press, Incorporated

Subject/Index Terms

• TRT Terms: Buoyancy; Coils (Electromagnetism); Electromagnetic fields; Ground transportation; High speed ground transportation; Innovation; Magnets; Structural plates; Structural supports; Superconductivity
• Uncontrolled Terms: Plates
• Old TRIS Terms: Conductors; Future concepts; Magnetic support; Resistance; Supports
• Subject Areas: Highways; Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00223627
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 15 1971 12:00AM