SU1441000A1

SU1441000A1 - Energy-absorbing device for road enclosures

Info

Publication number: SU1441000A1
Application number: SU864172545A
Authority: SU
Inventors: Вадим Александрович Астров; Борис Михайлович Елисеев; Павел Квинтельянович Малинин; Олег Васильевич Мельников
Original assignee: Государственный Всесоюзный Дорожный Научно-Исследовательский Институт "Союздорнии"; Казахский Филиал Государственного Всесоюзного Дорожного Научно-Исследовательского Института "Союздорнии"
Priority date: 1986-12-30
Filing date: 1986-12-30
Publication date: 1988-11-30

Abstract

Изобретение относитс к ограждающим устройствам автомобильных дорог. Цель изобретени - повышение эффективности энергопоглощени при фронтальном и боковом наездах автомобил . Энергопоглощающее устройство содержит торцовую дугообразную балку 1, боковые балки 2, несущие их стойки 3, укрепленные в основании , и энергопоглощающие элементы 5, размещенные между боковыми балками 2, причем энергопоглощающие элементы 5 имеют торообразную форму, установлены на основании группами, вплотную к балкам 1 и 2, а плоскость вращени указанных элементов перпендикул рна рабочей поверхности балок, кажда из групп прикреплена тросом 6, свободно пропущенным через отверсти указа{1ных элементов и проушины 7, которые смонтированы на балках 1 и 2, при этом концы троса закреп- а лены на боковых балках 2 за пределами установки групп. 3 ил. (Q 4 4;This invention relates to road fencing devices. The purpose of the invention is to increase the energy absorption efficiency in frontal and side travels of a car. Energy absorbing device contains an end arcuate beam 1, side beams 2, supporting pillars 3, fixed at the base, and energy absorbing elements 5, placed between the side beams 2, with energy absorbing elements 5 having a toroidal shape, mounted on the base in groups close to beams 1 and 2, and the plane of rotation of these elements is perpendicular to the working surface of the beams, each of the groups is attached by a cable 6, freely passed through the holes of the decree {1 of the elements and eyelets 7, which are mounted and beams 1 and 2, wherein the ends of the cable zakrep- Lena and the side beams 2 outside the installation teams. 3 il. (Q 4 4;

Description

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Изобретение относитс к ограждающим устройствам автомобильных дорог, а конкретно к энергопоглощающим устройствам дл торцовых участков дорожных ограждений .The invention relates to road fencing devices, and more specifically to energy absorbing devices for end sections of road barriers.

Целью изобретени вл етс повышение эффективности энергопоглощени при фронтальном и боковом наезде автомобил .The aim of the invention is to increase the energy absorption efficiency in frontal and side collision of a car.

На фиг. 1 изображено устройство, вид в плане; на фиг. 2 то же, вид сбоку.FIG. 1 shows a device, a plan view; in fig. 2 the same, side view.

Во второй фазе процесс перемещени автомобил сопровождаетс изгибом стоек 3, боковых балок 2, увеличением количества перемещающихс элементов 5. При этом остаток кинетической энергии автомобил гаситс силами инерции элементов 5, трени и сопротивлени пластической деформации металла.In the second phase, the process of moving the car is accompanied by the bending of the pillars 3, side beams 2, the increase in the number of moving elements 5. At the same time, the remainder of the kinetic energy of the car is absorbed by the inertia of the elements 5, friction and resistance to plastic deformation of the metal.

После завершени основного процесса взаимодействи автомобил с устройствомAfter completion of the main process of car interaction with the device

на фиг. 3 - крепление троса к про- Ю элементы 5, которые еще наход тс в двидольной балке.in fig. 3 - fastening of the cable to the pro- duction elements 5, which are still in the two-pole beam.

Устройство содержит дугообразную торцовую балку 1, боковые балки 2, закрепленные на стойках 3 через консоли 4, и энергопоглощающие элементы 5 в виде изношенных автомобильных шин, прив занных к торцовой и боковым балкам тросом 6, пропущенным сквозь отверсти щин.The device comprises an arcuate face beam 1, side beams 2 mounted on racks 3 through consoles 4, and energy-absorbing elements 5 in the form of worn car tires attached to face and side beams by cable 6, passed through holes.

Закрепление троса выполнено с промежутками , в которых располагаетс по нескольку энергопоглощающих элементов - шин, образующих блоки. Конструкци закреплени троса к балке, за исключением креплени его концов, предусматривает возможность перемещени троса (проскальзывание ) при его нат жении. Закрепление троса на торцовой балке выполнено посредством проушины 7, крепление к боковой балке в месте расположени стойки - посредством выступа. Концы тросов жестко прикреплены в точках 8 к боковым бал15The fastening of the cable is made at intervals in which there are several energy-absorbing elements - tires, forming blocks. The design of securing the cable to the beam, with the exception of fastening its ends, provides for the possibility of moving the cable (slippage) during its tension. The cable is fastened to the end beam by means of eyelet 7, and attached to the side beam at the location of the stand - by means of a protrusion. The ends of the cables are rigidly attached at points 8 to the side ball 15

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жении, задерживаютс тросом, при этом гаситс их кинетическа энерги , полученна при ударе.are retained by the cable, and their kinetic energy obtained during the impact is extinguished.

При боковом наезде устройство поглощает кинетическую энергию, обусловленную поперечной составл ющей скорости автомобил в момент наезда, и корректирует траекторию его движени , направл вдоль ограждени . Как при фронтальном, так и при боковом соударении автомобил с устройством поглощение энергии происходит за счет деформации материала устройства и, главным образом, за счет перемещени энергопоглощающих элементов без их разрушени (инерционное энергопоглощение), а также за счет трени энергопоглощающих элементов между собой и опорной поверхностью.With a side collision, the device absorbs the kinetic energy due to the transverse component of the vehicle’s speed at the time of the collision, and adjusts its trajectory of movement, guided along the fence. In both frontal and side collisions of a car with a device, energy absorption occurs due to the deformation of the material of the device and, mainly, due to the movement of energy absorbing elements without their destruction (inertial energy absorption), as well as due to the friction between the energy absorbing elements and the supporting surface. .

При боковом наезде на барьерное ограждение , соединенное с энергопоглощающим устройством, на боковую балку усткам за пределами, в которых установлены on ройства действует сила нат жени балки шины. Диагональные св зи 9, соедин ющие In the case of lateral collision with a barrier fence connected to an energy-absorbing device, the side beam is installed outside the limits in which the gears are installed, the tension of the tire beam is applied. Diagonal connections 9 connecting

основани стоек с боковыми балками, служат дл воспри ти силы нат жени балки , т. е. выполн ют функцию анкерного устройства.the bases of the uprights with side beams serve to perceive the tension force of the beam, i.e., they function as an anchoring device.

ограждени . Эта сила уравновешиваетс силами реакции диагональных св зей 9.fencing This force is balanced by the reaction forces of the diagonal connections 9.

Claims

Invention Formula

The device works as follows.

In the case of frontal hitting, the first phase of the process of interaction of the device with the car begins with the impact of the car in the middle part of the arc end of the beam, behind which are the first energy absorbing elements 5. At the same time, the end beam is deflected and the adjacent elements 5 move, causing its transfer kineti25 Energy absorbing device for road barriers, containing end arcuate girder, side beams, supporting racks, fixed at the base, and energy absorbing elements, are placed s between bokovymt beams otlichayusche40 Sun that, in order to increase efficiency in the frontal and side impact, energy absorbing elements have TO- roobraznuyu form set based groups adjacent to the beams, wherein

comical energy car. Also in .j. plane of rotation of these elements

the first phase, energy is absorbed during the flat .-

tic deformation of the end beam and module friction on the surface. The first phase ends at the moment when the end beam 1 and the cable 6 are tensioned, bending the front

part of the car body, the console 4 and the stand of the 50 CI of the cable are fixed on the side beams of the ki 3, forming a loop. outside the installation of the groups.

perpendicular to the working surface of the beams, and each of the groups is attached with a cable freely passed through the holes of these elements and eyelets that are mounted on the beams, while the second phase of the movement of the vehicle is accompanied by the bending of the uprights 3, the side beams 2, by an increase in the number of moving elements 5. At the same time, the remainder of the kinetic energy of the automobile is absorbed by the inertia of the elements 5, friction and resistance to plastic deformation of the metal.

After completion of the main process of car interaction with the device

are retained by the cable, and their kinetic energy obtained during the impact is extinguished.

With a side collision, the device absorbs the kinetic energy due to the transverse component of the vehicle’s speed at the time of the collision, and adjusts its trajectory of movement, guided along the fence. In both frontal and side collisions of a car with a device, energy absorption occurs due to the deformation of the material of the device and, mainly, due to the movement of energy absorbing elements without their destruction (inertial energy absorption), as well as due to the friction between the energy absorbing elements and the supporting surface. .

With a side impact on the barrier fence connected to the energy absorbing device, the tension of the beam acts on the side beam of the device.

fencing This force is balanced by the reaction forces of the diagonal connections 9.

Invention Formula

An energy absorbing device for road barriers containing an end arcuate girder, side beams, their supporting pillars fixed at the base, and energy absorbing elements placed between the side beams, characterized in that, in order to increase efficiency in frontal and side ramps, the energy absorbing elements have - uniform, installed on the basis of groups close to the beams, and

plane of rotation of these elements

.-

The cables are secured on the side beams outside the group setting.

perpendicular to the working surface of the beams, and each of the groups is attached with a cable freely passed through the holes of the above elements and eyelets that are mounted on the beams;

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