TRUCK DESIGN OPTIMIZATION PROJECT FIELD TEST DATA, SERIES 1, TAPE TDOP 0025

The 2 data files on this magnetic tape include acceleration, force, and displacement measurements 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-ASF Ride Control* Truck Center-45 Ft. 9 In.* Load-Half Load* Wheel Profile-New 1 in 20* Spring Group 7-05O; 6-05I* Snubbing-8-3091* Snubber Augmentation-None* Centerplate Friction-Steel Moly* Additional Experimental Devices or Conditions-None except vertical adaptor calibration should be on basis of 17.8K* 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-010302TSM001* Track-Med Spd Jtd* Speed-15 to 45 in 5 mph steps* Outer Gib Clearance-5/8 In.* Side Bearings-3/8 In. clear.* Additional Experimental Conditions-None* Errors noted-Ch 13 has pos. Noise, ch 28 off 0 ***FILE 2: Name-010302TSR001* Track-Med Spd Jtd.* Speed-20 to 28 in 2 mph steps* Outer Gib Clearance-5/8 In.* Side Bearings-3/8 In. Clear.* Additional Experimental Conditions-None* Errors noted-None.

• Supplemental Notes:
  • See also PB-250 179. Supersedes PB-246 331. 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: 1975-3

Subject/Index Terms

• TRT Terms: Bearings; Branch lines; Car trucks (Railroads); Data collection; Datasets; Dynamic loads; Dynamic tests; Freight cars; Hunting (Dynamics); Instrumentation; Loads; Magnetic tapes; Modems; Performance tests; Shock absorbers; Snubbers; Speed measurement; Spring; Springs (Vehicles); Structural design; Suspension systems; Testing; Tests; Train track dynamics; Trucks; Undercarriages; Vehicle design; Vehicle dynamics; Vehicle performance; Wear
• Uncontrolled Terms: Data set; Dynamic response
• Old TRIS Terms: Dynamic vehicle performance; Freight car dynamics; Half load; Medium speed; Resonant speed; Side bearings
• Subject Areas: Design; Motor Carriers; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00094579
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FRA/ORD/MT-76/34 Data file, FRA/DF-76/009
• Files: NTIS, TRIS, USDOT
• Created Date: Jul 8 1994 12:00AM