TEST CONDUCTED BY GENERAL MOTORS PROVING GROUNDS NOISE AND VIBRATION LABORATORY, REPORT NO. 22050

The objective of this test was to obtain data during a typical tri-level shipment known to cause automobile frame damage. The rail car chosen was NIFX-13551 which was a split deck, low tri-pack car with side cushions. The top level, front auto position was chosen as the location for the automobile because of a high failure rate among autos shipped in this position. The "T" hook, was used and standard tie-down procedure was followed in securing the automobile to the rail car. The instrument car was coupled directly to the tri-level rail car containing the test automobile. Large strains were recorded on a number of gages immediately after tie-down. Strains greater than 1500 KE generally result in yielding of the material for the type of steel used in automobile frames. The value was exceeded at each tie-down hole on initial tie-down.

• Corporate Authors:

  General Motors Corporation

  Warren, MI  United States  48090
• Authors:
  • Isaacson, R D
• Publication Date: 1966-10

Media Info

• Features: Figures; Tables;
• Pagination: 31 p.

Subject/Index Terms

• TRT Terms: Automobile rack cars; Freight cars; Loss and damage; Railroad cars; Sound level; Stresses; Technology
• Geographic Terms: United States
• Old TRIS Terms: Lading damage index
• Subject Areas: Freight Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00040237
• Record Type: Publication
• Report/Paper Numbers: PG-22050 Test Rpt
• Files: TRIS
• Created Date: Feb 6 1973 12:00AM