• Fundamental limitations and topological considerations for fast discharge homopolar machines 

      Driga, M.D.; Nasar, S.A.; Rylander, H.G.; Weldon, W.F.; Woodson, H.H. (IEEE, 1975-12)
      Fusion research experiments require high energy short duration pulses. A homopolar machine, as an inertial energy storage system, offers an attractive source of energy meeting these requirements. The Energy Storage Group ...
    • Magnetic Field Diffusion in Fast Discharging Homopolar Machines 

      Driga, M.D.; Becker, E.B.; Pillsbury, R.D.; Weldon, W.F.; Rylander, H.G.; Woodson, H.H. (Hemisphere Publishing Corporation, 1977)
      The unusually high mechanical and thermal stresses occuring in fast discharging homopolar machines require accurate prediction of high magnetic fields accompanying their operation. Linear methods and ideal configurations ...
    • The Testing of Sliding Electrical Contacts for Homopolar Generators 

      Brennan, M.; Eliezer, Z.; Weldon, W.F.; Rylander, H.G.; Woodson, H.H. (IEEE, 1979-03)
      Due to the recent interest in homopolar generators as pulsed power supplies, the need has arisen for pulsed brush data on slip rings at high current levels and high surface velocities. Tests were conducted to examine the ...
    • Homopolar Pulse Resistance Welding - A New Welding Process 

      Grant, G.B.; Featherston, W.M.; Keith, R.E.; Weldon, W.F.; Rylander, H.G.; Woodson, H.H.; Carnes, R.W.; Hudson, R.S. (, 1979-05)
    • Analysis of Defective Hydrostatic Radial Bearings for Five Megajoule Homopolar Generator 

      Rylander, H.G.; Weldon, W.F. (American Society of Mechanical Engineers, 1980)
      Hydrostatic bearings were designed for a five megajoule homopolar generator since they offered the advantages of low shaft friction, high load capacity and high stiffness independent of shaft speed. The original bearings ...
    • High Current and High Current Density Pulse Tests of Brushes and Collectors for Homopolar Energy Stores 

      Marshall, R.A.; (IEEE, 1981-03)
      The incentive exists to use high collector current densities in pulsed duty homopolar generators, the current densities of interest being in the range of 15--45 MA/m2. Tests have been conducted in which current pulses of ...
    • The Proposed CEM-UT 50-MJ Pulsed Homopolar Generator Power Supply 

      Weldon, W.F.; Aanstoos, T.A. (IEEE, 1982-01)
      The Center for Electromechanics at the University of Texas at Austin (CEM-UT) has been involved since 1972 both in the development of homopolar generators (HPGs) as pulsed power supplies and in the application of these ...
    • The TAERF Scientific Railgun Theoretical Performance 

      Marshall, R.A.; (IEEE, 1982-01)
      The successful demonstration of direct-current railguns during the last decade has shown that these simple devices have the capability of accelerating gram-sized projectiles to very high velocities, provided that the current ...
    • AARADCOM/DARPA Compact Homopolar Generator 

      Gully, J.H.; (IEEE, 1982-01)
      If electromagnetic (EM) rail guns are to be used to propel substantial projectiles, large amounts of energy must be delivered in a fast, high-current pulse. Homopolar generators (HPGs) store megajoules (MJ) of energy in ...
    • Induction Motor for Wide Range Static Inverter Drive: Electrical Machines, Designer's Point of View 

      Driga, M.D.; (, 1983-03)
      A fact, usually overlooked in technical papers is that the design of electrical motors in a.c. drives is highly dependent on the parameters and construction details of the power supplying steady-state conversor, especially ...
    • A Systems Tester for Compact Homopolar Generator Component Development 

      Walls, W.A.; Vaughn, M.R. (IEEE, 1983-10)
      To facilitate the development of more compact homopolar generators (HPGs), the compact HPG systems tester was designed and built to develop the system and component technology necessary to design HPGs having energy densities ...
    • Distributed Current Feed and Distributed-Energy-Storage Railguns 

      Holland, L. D.; (IEEE, 1983-10)
      Distributed-type railguns are combinations of power supplies and railguns designed to maintain a nearly constant current in the armature of a railgun and to overcome the accelerator length limitations of simple breech-fed ...
    • Physical Scale Modeling to Verify Energy Storage Inductor Parameters 

      Zowarka, R.C.; (IEEE, 1984-03)
      In the pulse charging and discharging of energy storage inductors, the influence of I2R heating, magnetic diffusion skin depth, and eddy current losses must be evaluated. These effects are not easily treated analytically. ...
    • Pulsed Power Requirements for EM Launchers 

      Weldon, W.F.; Woodson, H.H. (IEEE, 1984-03)
      Both linear (railgun) and coaxial (mass driver, etc.) electromagnetic launchers (EMLs) are treated as time-varying impedances to determine the relationships between acceleration force, payload velocity, and power supply ...
    • Switching Overview--Fundamental Issues 

      Woodson, H.H.; (IEEE, 1984-03)
      Good afternoon. It is a pleasure to be here and an honor to be asked to overview and chair this switching session. I feel unprepared for the task, because I have much less experience than those on the program in designing, ...
    • A New High Current Laboratory and Pulsed Homopolar Generator Power Supply at The University of Texas 

      Floyd, J.E.; Aanstoos, T.A. (IEEE, 1984-03)
      The University of Texas at Austin is constructing a spacious facility for research in pulse power technology at the Balcones Research Center, located in north Austin. The arrangement and capacity of the facility are intended ...
    • Compact Homopolar Generator Development at CEM-UT 

      Gully, J. H.; Estes, E. G.; Walls, W. A.; Weldon, W. F. (IEEE, 1984-03)
      For electromagnetic launchers (EMLs) to become practical devices, they must evolve from laboratory test beds to field-portable systems. Such systems require the development of compact, lightweight, high-energy, high-current ...
    • The DES Railgun Facility at CEM-UT 

      Holland, L. D.; (IEEE, 1984-03)
      The Center for Electromechanics at The University of Texas at Austin (CEM-UT) has constructed a facility for the operation of electromagnetic (EM) launcher experiments. The facility was specifically designed to investigate ...
    • A Compulsator Driven, Rapid-Fire EM Gun 

      Pratap, S.B.; Bird, W.L.; Godwin, G.L.; Weldon, W.F. (IEEE, 1984-03)
      A compulsator-driven railgun is an attractive alternative to the homopolar generator-inductor-switch configuration, especially for repetitive duty. A conceptual design of a rapid-fire EM-gun system is presented. The generator ...
    • Fabrication of a Compact Storage Inductor for Railguns 

      Spann, M.L.; Pratap, S.B.; Gully, J.H.; Weldon, W.F.; Woodson, H.H. (IEEE, 1984-03)
      A liquid nitrogen-cooled, coaxial, energy storage inductor has been designed and built to be used in conjunction with a compact homopolar generator to form a high-energy-density power supply for use with electro-magnetic ...