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52550
  
  

  13
Jan
2017
Technical Reports
Weld Repair of Manganese Frogs for Enhanced Performance
Author
          Federal Railroad Administration

Subject
                    Best Practices,
                    Rail and Infrastructure Integrity,
                    Track

**Keywords:** Reciprocating wire feed, constant voltage, Flux-Cored Arc Welding, heat-affected zone, radiographic testing, Shielded Metal Arc Welding, ultimate tensile strength, yield strength.
**Abstract:** When special trackwork contact surfaces (such as manganese-steel turnout frogs) become worn and damaged, they can be repaired to extend their lifetime, but current repair...
Report Number
              DOT/FRA/ORD-17/01

  Office
              RRD
    1
Nov
1995
Technical Reports
Modeling and Simulation of a Superconducting EMS-Type Maglev Vehicle/Guideway System
Author
          Mark L. Nagurka, Ssu-Kuei Wang

Subject
                    Maglev

**Keywords:** Vehicle/Guideway Interaction, Vehicle Dynamics, Maglev Control, Preview Control
**Abstract:** Computer simulation models are developed for predicting the dynamic performance of a magnetically levitated (maglev) vehicle with a superconducting (SC) electromagnetic suspension...
Report Number
              D0T-VNTSC-FRA-95-16

  Office
              RRD
    1
May
1995
Technical Reports
Investigation of Local Commutation as Applied to Linear Synchronous Motors for Use as a Maglev Propulsion System
Author
          R. Wiesman, R. Fontana, B. Gamble, D. Cope, T. Mason, G. Bastarache

Subject
                    Maglev

**Keywords:** Distributed Control, Power Transfer, Railroad Technology
**Abstract:** The Locally Commutated Linear Synchronous Motor (LCLSM) concept was analyzed and demonstrated. Design and analysis of an 8.1 Megawatt propulsion motor for a 100 Mg Maglev vehicle...
Report Number
              DOT/FRA/ORD - 95/01

  Office
              RRD
    1
Feb
1995
Technical Reports
Safety of High Speed Ground Transportation Systems: Safety of Advanced Braking Concepts for High Speed Ground Transportation Systems
Author
          Federal Railroad Administration

Subject
                    High-Speed Passenger Rail,
                    Maglev

**Keywords:** high-speed; rail; magnetic levitation; braking equipment; fault-tolerant; fail-safe; FMEA; safety; failure modes
**Abstract:** The objective of this study is to develop qualitative and quantitative information on the various braking strategies used in high-speed ground transportation systems in support of...
Report Number
              DOT/FRA/ORD-95/09.1

  Office
              RDI-20
    1
Sep
1994
Technical Reports
Safety of High Speed Magnetic Levitation Transportation Systems: Thermal Effects and Related Safety Issues of Typical Maglev Steel Guideways
Author
          Federal Railroad Administration: S. J. Kokkins; A. Purple; G. Samavedam

Subject
                    High-Speed Passenger Rail,
                    Maglev

**Keywords:** Thermal, Guideway, Magnetic levitation, Maglev, Deflection, Temperature, Transrapid
**Abstract:** This report presents a theoretical analysis predicting the temperature distribution, thermal deflections, and thermal stresses that may occur in typical steel Maglev guideways...
Report Number
              DOT/FRA/ORD-94/10

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              RRD

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