Energy-dissipating element and impact protection with an energy-dissipating element

Abstract

An energy-dissipating element has the form of a hollow body extending in the longitudinal direction, wherein the element comprises a wall forming the peripheral surface of the hollow body. The element is designed to respond upon the exceeding of a critical impact force applied to a front of the element and to convert at least a portion of the impact energy ensuing from the transfer of the impact force through the element into the energy and heat of deformation by plastic deformation. In order to achieve the follow object that the residual block length is as small as possible in the available space, and therefore the energy-dissipating element can perform high enough of energy dissipation in the longitudinal axes of the predictable sequence of the response and event defined by the energy-dissipating element, the hollow body form a wall of the energy-dissipating element, based on that the inventive energy-dissipating element includes at least one deformation element formed along the appearance (specifically the hollow appearance) and extending long the longitudinal axes of the hollow body.

Description

technical field [0001] The invention relates to an energy dissipating element in the form of a longitudinally extending hollow body, wherein said energy dissipating element comprises a wall forming a peripheral surface of said hollow body, and wherein said energy dissipating element is designed to be applied beyond the The energy dissipating element responds after a critical impact force at the front end of the energy dissipating element, and absorbs at least a portion of the impact energy resulting from transmitting the impact force through the energy dissipating element by means of plastic deformation; that is, converts it into deformation energy and hot. The invention also relates to a shock absorber, in particular for use as a side bumper at the front end of a rail vehicle, such as a railway vehicle, or in a bump stop, wherein said shock absorber comprises an energy dissipating element of the above-mentioned type . Background technique [0002] Energy dissipating eleme...

AI Technical Summary

Problems solved by technology

[0007] The printed publication DE 102 52 175 A1 takes into account the following problem: After the maximum damper stroke has been reached, i.e. after the damping properties of the damping element have been exhausted, impact forces exceeding the characteristic operating load of the piston damper are not further undamped conduction to the supporting structure

[0010] The disadvantage of this technique is that, based on its design, this prior art solution can only use about half of the entire length of the buffer when absorbing shocks

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