TRUCK DESIGN OPTIMIZATION PROJECT FIELD TEST DATA, SERIES 1, TAPE TDOP 0032

The 4 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-Empty* 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* 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-010202TEM001* Track-Hi. Spd. CWR* Speed-30 to 60 in 10 mph steps* Outer Gib Clearance-5/8 In.* Side Bearings-1/8 In. clear.* Additional Experimental Conditions-None* Errors noted-ch 46 inoperative, ch 23 no neg. ***FILE 2: Name-010202TEH001* Track-Hi. Spd. CWR* Speed-70 and 79 mph* Outer Gib Clearance-5/8 In.*Side Bearings-1/8 In. Clear.* Additional Experimental Conditions-None* Errors noted-ch 46 inoperative, ch 23 neg. inoperative ***FILE 3: Name-010202TSR001* Track-Med. Spd. Jtd.* Speed-24-32 in 2 mph steps* Outer Gib Clearance-5/8 In.* Side Bearings-1/8 In. Clear.* Additional Experimental Conditions-None* Errors noted-Ch 46 inoperative, ch 23 no neg., ch 41 questionable ***FILE 4: Name-010202TSM001* Track-Med. Spd. Jtd.* Speed-15 to 45 in 5 mph steps* Outer Gib Clearance-5/8 In.* Side Bearings-1/8 In. Clear.* Additional Experimental Conditions-None* Errors noted-ch 46 inoperative, ch 23 no neg.

• Supplemental Notes:
  • See also PB-250 186. 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; Data collection; Datasets; Dynamic loads; Dynamic tests; Freight cars; High speed ground transportation; High speed vehicles; Hunting (Dynamics); Instrumentation; Loads; Magnetic tapes; Main lines; Modems; Performance tests; Railcar trucks; Shock absorbers; Snubbers; Speed; 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: 00094585
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FRA/ORD/MT-76/41 Data file, FRA/DF-75/027
• Files: NTIS, TRIS, USDOT
• Created Date: Jul 8 1994 12:00AM