ELASTIC SYSTEMS FOR TRACTION AND SHOCK GEAR (SIDE BUFFERS AND CENTRE BUFFERS). TESTS WITH LONG-STROKE SHOCK ABSORBING SYSTEMS

Impact dissipating systems with mechanical and hydraulic shock absorbing systems (combined with pneumatic and conventional springs) have been developed for the protection of light vehicles and sensitive loads (carrying wagons with containers). Tests made by the NS and DB with two-axled wagons and bogie wagons aimed at the investigation of the efficiency of the different systems regarding the magnitude of the acceleration with lightly loaded wagons and at that of the limit of the work absorption capacity during impacts between fully loaded wagons. The results show that, whereas mechanical shock absorbing systems have to be excluded from the range of protective systems because their work absorption capacity is too low, hydraulic systems with a stroke of 500 mm have been found adequate for bogie wagons at buffing speeds up to 15 km/h and consequently fulfill ISO conditions. Systems with a stroke of 760 mm have proved adequate for two-axled wagons in any case, though systems with a stroke of 500 mm have not done so.

• 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: 1973-10

Media Info

• Features: Appendices; Figures; Tables;
• Pagination: 40 p.

Subject/Index Terms

• TRT Terms: Crash tests; Freight cars; Shock absorbers
• Old TRIS Terms: Center buffers; Freight car components; Question b36; Side buffers
• Subject Areas: Railroads; Research;

Filing Info

• Accession Number: 00052556
• Record Type: Publication
• Source Agency: International Union of Railways
• Report/Paper Numbers: B36/RP 11/E
• Files: TRIS
• Created Date: Dec 31 1974 12:00AM