PREVENTION OF DERAILMENT OF GOODS WAGONS ON DISTORTED TRACKS. PERMISSABLE WHEEL-LOAD VARIATIONS ON TWO-AXLED GOODS WAGONS. VOLUME 1: REPORT: VOLUME 2: APPENDICES: VOLUME3: TABLES AND FIGURES

When a two-axled vehicle or bogie with statically indeterminate support (four-point support) runs over uneven track, its weight G is irregularly distributed over the four wheels. Because the leading wheel will derail when the ratio between guide force and wheel load exceeds a given critical value, the safety against derailment in track twists depends on the distribution of the wheel loads. The B 55 Specialist Committee was entrusted with the task of determining the critical wheel unloading, which when coinciding with the largest encountered guide forces, leads to derailment. For this purpose, the wheel loads at the leading wheelset of empty goods wagons, pushed through a cant gradient 1 : 100, situated at the exit of a track curve with R = 150 m, were tentatively determined at the commencement of derailment during approximately 100 derailment tests. These tests are described in the present Interim Report No. 3.

• Supplemental Notes:
  • Restrictions on the use of this document are contained in the explanatory material.
• Corporate Authors:

  International Union of Railways

  Office of Research and Experiments
  Utrecht,   Netherlands 
• Publication Date: 1966-10

Media Info

• Features: Figures; Tables;
• Pagination: 132 p.

Subject/Index Terms

• TRT Terms: Deformation; Derailments; Dynamics; Prevention; Railroad rails; Railroad tracks; Safety; Tests; Torsion; Train track dynamics; Two axle cars; Wheel loads; Wheels
• Old TRIS Terms: Question b55; Track deformation
• Subject Areas: Railroads; Safety and Human Factors; Security and Emergencies; Vehicles and Equipment;

Filing Info

• Accession Number: 00052995
• Record Type: Publication
• Source Agency: International Union of Railways
• Report/Paper Numbers: B55/RP 3/E Intrm Rpt.
• Files: TRIS
• Created Date: Nov 3 1976 12:00AM