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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>BUFFERS WITH A LARGE WORK ABSORPTION CAPACITY. COMPARATIVE TESTS ON BUFFERS</title>
      <link>https://trid.trb.org/View/15223</link>
      <description><![CDATA[The purpose of the present report is: to give an account of the study of the behavior of buffers in the trains when running and during brake applications; to fix the desirable characteristics and the criteria for the choice of a modern buffer; to propose, in conclusion, a draft of a UIC-leaflet concerning buffers with a large work absorption capacity for wagons.  The first part of this report contains a description of the results of the track tests on normal goods trains composed of normal CFF wagons.  These trains had 100, 120 and 150 axles being empty and others loaded to one quarter, one half, three quarters or to capacity.  The second part of this report consists of a study aiming at laying down the desirable characteristics and the criteria to be adopted for the choice of a modern buffer.  This study successively deals with the following efficacity criteria of a buffer: (a) during an impact, (b) during the running and braking of the trains.  The third part of this report consists of a draft of a leaflet concerning buffers with a large work absorption capacity for wagons.]]></description>
      <pubDate>Fri, 08 Jul 1994 00:00:00 GMT</pubDate>
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      <title>BUFFERS WITH A LARGE WORK ABSORPTION CAPACITY. TESTS ON IMPROVED "OLEO-PNEUMATICS" BUFFERS</title>
      <link>https://trid.trb.org/View/15224</link>
      <description><![CDATA[In the period between July and November 1961, the Rolling Stock Research Department of the SNCF had undertaken, upon the request of the NS, tests in order to determine the static and dynamic behavior and also the behavior under alternating forces of the improved OLEO-PNEUMATICS buffers. These buffers had been developed following the tests at Romont in 1959 and 1960 (see Interim Report No. 3), so as to obtain also for the hydraulic buffers a static behavior meeting the prescriptions contained in UIC-leaflet 526, Section 2, while preserving the primordial characteristics of the hydraulic buffers consisting in the variation of the work absorbed as a function of the weight of the vehicle and the impact speed.  The tests conducted in accordance with the programme and the test method indicated in Interim Report No. 1 and also the supplementary tests have shown that the characteristics of the improved Oleo- Pneumatics buffers largely correspond to the conditions required in UIC-leaflet No. 526, Section 2, and that their resistance on the tup and to the alternating quasi-static forces has been satisfactory.  The Specialists Committee has been of the opinion that it is of importance that the behavior of buffers of this type in a train of at least 150 axles should be verified before any general application of these buffers.]]></description>
      <pubDate>Fri, 08 Jul 1994 00:00:00 GMT</pubDate>
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      <title>BUFFERS WITH A LARGE WORK ABSORPTION CAPACITY. TESTS WITH HYDRO-PNEUMATIC BUFFERS AT BERTRIX, (BELGIUM) IN 1965</title>
      <link>https://trid.trb.org/View/15226</link>
      <description><![CDATA[Programme of Work: (a) Tests with improved "Oleo-Pneumatics" buffers (150 axle train); (b) Possible further tests with other types of elastic elements with a view to the future application of the automatic coupler and to removing the fears expressed in this connection by the Operating Departments concerning train-reactions and possible damages to the goods transported; (c) Buffing tests with different types of loading for the purpose of determining the relative influence of the different characteristics of the elastic elements of the buffers, or of the elastic systems for the automatic traction and shock coupler (consequences of above mentioned Point (b); and (d) Calculations on the computer for the purpose of determining the longitudinal forces and reactions in long trains under different conditions, especially during emergency braking at low speeds (0 - 30 km/hr).]]></description>
      <pubDate>Tue, 26 Oct 1976 00:00:00 GMT</pubDate>
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