TRUCK DESIGN OPTIMIZATION PROJECT FIELD TEST DATA, SERIES 5, TAPE TDOP 0188

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-100 to 60 ft Box* Truck-Barber S2C* Truck Center-46 Ft. 3 In.* Load-Full* Wheel Profile-Cylindrical* Spring Group 7-D3O; 7-D3I* Snubbing-B-421; 8-422* 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. Side bearing forces are also questionable. Individual variations of the different tests are as follows: FILE 1: Name-050404MOO001* Track-shimmed* Speed-12 to 20 in 2 mph steps* Outer Gib Clearance-5/8 In.* Side Bearings-1/4 In. Clear.* Additional Experimental Conditions-None* Errors noted-ch. 42 -0.8v. off 0 ***FILE 2: Name-050404TSM001* 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-None* Errors noted-None.

• Supplemental Notes:
  • See also PB-250 330. 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: 1976-1

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; Full load; Medium speed; Resonant speed; Side bearings
• Subject Areas: Design; Motor Carriers; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00136968
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FRA/ORD/MT-76/220 Final Rpt., FRA/DF-76/092
• Files: NTIS, TRIS, USDOT
• Created Date: Jul 8 1994 12:00AM