TRUCK DESIGN OPTIMIZATION PROJECT FIELD TEST DATA, SERIES 3, TAPE TDOP 0090

The 3 data files on this magnetic tape include acceleration, force, and displacement measurement at critical points on a freight car and truck. Each file includes detailed alphanumeric descriptions of test conditions. The following are for all tests on this tape: Car-70 ton M. Reefer* Truck-Barber S2C* Truck Center-45 Ft. 9 In.* Load-None* Wheel Profile-New 1 in 20* Spring Group 7-D5O; 4-D5I* Snubbing-8-B432* Snubber Augmentation-None* Centerplate Friction-Steel-Moly* Additional Experimental Devices or Conditions-None* NOTE: Vertical adapter forces are subject to question. Those on sharper curves or empty cars at high speed are least accurate. Individual variations of the different tests are as follows: FILE 1: Name-030101TSR001* Track-Med.Spd.Jtd* Speed-22 to 30 in 2 mph steps* Outer Gib Clearance-5/8 In.* Side Bearings-1/4 In. Clear.* Additional Experimental Conditions-None* Errors noted-Neg.noise Ch. 42 and 45. ***FILE 2: Name-030101TSM001* Track-Med.Spd.Jtd.* Speed-15 to 45 in 5 mph steps* Outer Gib Clearance-5/8 In.* Side Bearings-1/4 In. Clear.* Additional Experimental Conditions-Slight air brakes applied at 15 and 20 mph* Errors noted-Neg. noise Ch. 42 and 45 ***FILE 3: Name-030101TEM001* Track-Hi.Spd.CWR* Speed-30 to 60 in 10 mph steps* Outer Gib Clearance-5/8 In.* Side Bearings-1/4 In. Clear.* Additional Experimental Conditions-None* Errors noted-Ch. 14 - 1.3V. off 0.

• Supplemental Notes:
  • See also PB-250 244. Source tape is in ASCII and BINARY character set. Character set restricts preparation to 9 track one-half inch tape only. Identify recording mode by specifying density only. Call NTIS Computer Products, if you have questions.
• Corporate Authors:

  Federal Railroad Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Bang, A J
• Publication Date: 1975-5

Subject/Index Terms

• TRT Terms: Bearings; Branch lines; Data collection; Datasets; Dynamic loads; Dynamic tests; Freight cars; Hunting (Dynamics); Instrumentation; Loads; Magnetic tapes; Main lines; Modems; Performance tests; Railcar trucks; Shock absorbers; Snubbers; Speed measurement; Spring; Structural design; Suspension systems; Testing; Tests; Train track dynamics; Trucks; Undercarriages; Vehicle design; Vehicle dynamics; Vehicle performance; Vehicle springs; Wear
• Uncontrolled Terms: Data set; Dynamic response
• Old TRIS Terms: Dynamic vehicle performance; Freight car dynamics; Medium speed; No load; Resonant speed; Side bearings
• Subject Areas: Design; Motor Carriers; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00133147
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FRA/ORD/MT-76/104 Data File, FRA/DF-75/084
• Files: NTIS, TRIS, USDOT
• Created Date: Jul 8 1994 12:00AM