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1 May 1991

Other Reports

Tread Crack Detection in Railroad Wheels: An Ultrasonic System Using EMATS

Author
R. E. Schramm, A. V. Clark, Jr., D. V. Mitrakovic

Subject Facilities & Test Equipment

Keywords: nondestructive testing, roll-by inspection

Abstract: This is report number 22 in a series .covering research performed by the National Institute of Standards and Technology (NIST) for the Federal Railroad Administration (FRA). This...

Report Number
Report No. 22
Office
RRD

1 May 1991

Technical Reports

Wheel/Truck Tolerance Experiment at FAST

Author
John Leary

Subject Facilities & Test Equipment

Keywords: Wheel Wear, Axle Misalignment, Wheel Profile, Instrumented Wheel Sets, Wheel/Rail Forces, Truck Design, Rolling Resistance, Rail Temperature, Steady State Curing Analysis, Facility for Accelerated Service Testing

Abstract: The test program described in this report covers the investigation of the performance of trucks in freight cars influenced by various mechanical factors. The primary issue was the...

Report Number
FRA/ORD - 91-16
Office
RRD

1 Aug 1989

Technical Reports

Vehicle Track Interaction Truck Hunting

Author
John F. Leary

Subject Facilities & Test Equipment, Track/Train Interactions

Keywords: Wheel/Rail Forces, Wheel Profile, Rail Profile, Hunting Threshold, On-Set Speed, Rolling Resistance Stability Model

Abstract: In an effort to better understand the practical aspects of the truck hunting response of two typical freight vehicles, a Federal Railroad Administration (FRA) test program was...

Report Number
FRA/ORD-89/02
Office
RRD

1 Mar 1989

Technical Reports

Stub Sills on Tank Cars

Author
W. J. Walsh, R. C. Rice, D. R. Ahlbeck

Subject Facilities & Test Equipment

Keywords: Stress Analysis, Fatigue, Life Predication, Head Brace

Abstract: The results of this study indicate that the head brace repair procedure provides an effective means for redirecting stub sill loads into the tank body, thus reducing stresses at...

Report Number
FRA/ORD-89-01
Office
RRD

1 Dec 1988

Technical Reports

Laboratory Investigation of Roller Bearing Damage Due to Impact

Author
J. Kesler, W. Jordan, R. Owings

Subject Facilities & Test Equipment

Keywords: Wheel Impact, Impact Loading, Stress

Abstract: This report presents the results of a two phase testing program to measure the strains in the roller separators (cages) of a bearing during impact loading. The impact loading is...

Report Number
FRA/ORD-89-O 4
Office
RRD