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Freight Car Truck Design Optimization. Survey and Appraisal of Type II Trucks.

PB248633

Publication Date	1975
Page Count	142
Abstract	The report serves as an introduction to the family of truck designs known as Type II that will be studied in connection with the Federal Railroad Administration's Truck Design Optimization Project. An investigation was made of existing trucks and truck designs qualifying as Type II trucks and this investigation considers features which would be of interest in selecting candidates for testing and evaluation of such trucks under Phase II of the Truck Design Optimization Project. Type II special service designs embody new concepts that utilize current wheel set and journal bearing assemblies and braking arrangements compatible with current air brake systems. Car coupler height is maintained but car body supports other than center plates can be employed. Ride quality and minimum maintenance cost are of major importance to Type II designs.
Keywords	Railroad cars Freight cars Trucks Design Optimization Wheels Journal bearings Brakes(Motion arresters) Air brakes Rail transportation Suspension systems(Vehicles) Maintenance DOT/4DZ/DC Railroad trucks Freight car trucks
Source Agency	Federal Railroad Administration
NTIS Subject Category	85H - Road Transportation
Corporate Authors	Southern Pacific Transportation Co., San Francisco, Calif. Technical Research and Development Group.; Federal Railroad Administration, Washington, D.C. Office of Research and
Supplemental Notes	See also PB-248 631.
Document Type	Technical Report
Title Note	Interim rept. Feb-Sep 75.
NTIS Issue Number	197606
Contract Number	DOT-FR-40023

Freight Car Truck Design Optimization. Survey and Appraisal of Type II Trucks.

Freight Car Truck Design Optimization. Survey and Appraisal of Type II Trucks.
PB248633

Publication Date	1975
Page Count	142
Abstract	The report serves as an introduction to the family of truck designs known as Type II that will be studied in connection with the Federal Railroad Administration's Truck Design Optimization Project. An investigation was made of existing trucks and truck designs qualifying as Type II trucks and this investigation considers features which would be of interest in selecting candidates for testing and evaluation of such trucks under Phase II of the Truck Design Optimization Project. Type II special service designs embody new concepts that utilize current wheel set and journal bearing assemblies and braking arrangements compatible with current air brake systems. Car coupler height is maintained but car body supports other than center plates can be employed. Ride quality and minimum maintenance cost are of major importance to Type II designs.
Keywords	Railroad cars Freight cars Trucks Design Optimization Wheels Journal bearings Brakes(Motion arresters) Air brakes Rail transportation Suspension systems(Vehicles) Maintenance DOT/4DZ/DC Railroad trucks Freight car trucks
Source Agency	Federal Railroad Administration
NTIS Subject Category	85H - Road Transportation
Corporate Authors	Southern Pacific Transportation Co., San Francisco, Calif. Technical Research and Development Group.; Federal Railroad Administration, Washington, D.C. Office of Research and
Supplemental Notes	See also PB-248 631.
Document Type	Technical Report
Title Note	Interim rept. Feb-Sep 75.
NTIS Issue Number	197606
Contract Number	DOT-FR-40023