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Technology Transfer
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52550
  
  

  1
May
1993
Technical Reports
Verification Methodology for Fault-Tolerant, Fail-Safe Computers Applied to Maglev Control Computer System
Author
          Federal Railroad Administration; Jaynarayan H. Lala; Gail A. Nagle; Richard E. Harper

Subject
                    Maglev,
                    Safety Advisories,
                    Technology Transfer

**Keywords:** Magnetic levitation, Maglev, Maglev control computer, Fail safe design, Fault tolerant computer, Design for verifcation methodology, Safety and availability
**Abstract:** The Maglev control computer system should be designed to verifiably possess high reliability and safety as well as high availability to make Maglev a dependable and attractive...
Report Number
              DOT/FRA/NMI-92/26

  Office
              RRD
    1
Jul
1979
Technical Reports
User's Guide to Fatigue Life Analysis Program (FLAP)
Author
          A. M. Zarembski, V. Sobash

Subject
                    Technology Transfer

**Keywords:** Freight Car Design, Fatigue Design, Computer Program
**Abstract:** This guide documents the use of the Fatigue Life Analysis Program which is intended for use in the implementation of the Interim AAR Guidelines for Fatigue Analysis of Freight...
Report Number
              R-273

  Office
              RRD
    1
Mar
1979
Technical Reports
Modern Concrete Crosstie Practice in France and Mexico
Author
          A. Prud'homme, J. Erieau, M. Tena Bernal, R. Tellez Gutierrez

Subject
                    Technology Transfer

**Keywords:** Concrete Crossties, Crosstie Fabrication, Failure Inducing Conditions, Performance Requirements, Concrete Constituent Analyses
**Abstract:** Considered briefly is the history of concrete crosstie development in France. Failure of some crossties in 1973 led to a determination of the failure modes and a rigorous analysis...
Report Number
              FRA/ORD- 79/02

  Office
              RRD
    1
Jan
1979
Technical Reports
Evaluation of Improved Track Structural Components Under Sub-Arctic Conditions
Author
          John W. Weber

Subject
                    Evaluation,
                    Technology Transfer

**Keywords:** Adjustable Rail Fasteners, Concrete Ties, Stabilized Ballast, Sub-arctic Conditions
**Abstract:** One area of concern to railroads in the northern third of the United States is the effect of frost heave and subsidence on track geometry. The purpose of this study was to...
Report Number
              FRA/ORD-79/01

  Office
              RRD
    1
Jul
1977
Technical Reports
Laboratory Investigation of Prestressed Concrete Crossties and Fasteners Manufactured in the U.S.S.R.
Author
          O.W. Knoblock

Subject
                    Technology Transfer

**Keywords:** Concrete Crosstie, Tie Fastener
**Abstract:** Soviet manufactured pre-stressed concrete crossties and fasteners were tested using AREA Bulletin 655 as a guide. The ties were subjected to the following tests: Rail Seat (...
Report Number
              LT-431

  Office
              RRD

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