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Analysis of Data from the First Wheel Experiment at the Facility for Accelerated Service Testing (FAST).

PB299433

Publication Date	1979
Personal Author	Larsen, K. W.
Page Count	36
Abstract	The Facility for Accelerated Service Testing (FAST), located at the Transportation Test Center near Pueblo, Colorado, is a joint government/industry program for accelerated life cycle testing of railroad track and mechanical components. The facility consists of a 4.8-mile loop around which a freight train of approximately 9,500 tons travels for 15 hours per day, 5 days per week. Measurements are taken periodically on various track and train components for the purpose of studying design performance and wear characteristics. As part of this overall program, a wheel experiment was designed to compare the performance of various types of wheels now in service on U.S. railroads. This report discusses an analysis of wheel wear data from the first wheel experiment, which ran from September 1976 to August 1977. Six wheel variables (heat-treated versus non-heat-treated, cast versus wrought, 1-wear versus 2-wear, AAR profile versus CN profile, 14-inch center plate versus 16-inch center plate, and type 1 truck versus type 2 truck) were studied. The analysis includes graphical analysis and the development of a regression model for studying variable interactions.
Keywords	Railroad trains Vehicle wheels Wear resistance Accelerated tests Flanges Dimensional measurement Thickness Regression analysis Freight cars
Source Agency	Federal Railroad Administration
NTIS Subject Category	85I - Railroad Transportation 85C - Metropolitan Rail Transportation
Corporate Authors	Unified Industries, Inc., Alexandria, VA.; Federal Railroad Administration, Pueblo, CO. Transportation Test Center.
Supplemental Notes	Errata sheet inserted.
Document Type	Technical Report
Title Note	Interim rept. Sep 76-Aug 77.
NTIS Issue Number	197925
Contract Number	DOT-FR-8046

Analysis of Data from the First Wheel Experiment at the Facility for Accelerated Service Testing (FAST).

Analysis of Data from the First Wheel Experiment at the Facility for Accelerated Service Testing (FAST).
PB299433

Publication Date	1979
Personal Author	Larsen, K. W.
Page Count	36
Abstract	The Facility for Accelerated Service Testing (FAST), located at the Transportation Test Center near Pueblo, Colorado, is a joint government/industry program for accelerated life cycle testing of railroad track and mechanical components. The facility consists of a 4.8-mile loop around which a freight train of approximately 9,500 tons travels for 15 hours per day, 5 days per week. Measurements are taken periodically on various track and train components for the purpose of studying design performance and wear characteristics. As part of this overall program, a wheel experiment was designed to compare the performance of various types of wheels now in service on U.S. railroads. This report discusses an analysis of wheel wear data from the first wheel experiment, which ran from September 1976 to August 1977. Six wheel variables (heat-treated versus non-heat-treated, cast versus wrought, 1-wear versus 2-wear, AAR profile versus CN profile, 14-inch center plate versus 16-inch center plate, and type 1 truck versus type 2 truck) were studied. The analysis includes graphical analysis and the development of a regression model for studying variable interactions.
Keywords	Railroad trains Vehicle wheels Wear resistance Accelerated tests Flanges Dimensional measurement Thickness Regression analysis Freight cars
Source Agency	Federal Railroad Administration
NTIS Subject Category	85I - Railroad Transportation 85C - Metropolitan Rail Transportation
Corporate Authors	Unified Industries, Inc., Alexandria, VA.; Federal Railroad Administration, Pueblo, CO. Transportation Test Center.
Supplemental Notes	Errata sheet inserted.
Document Type	Technical Report
Title Note	Interim rept. Sep 76-Aug 77.
NTIS Issue Number	197925
Contract Number	DOT-FR-8046