EP3977039A1 - Detonation energy absorption device and vehicle equipped with same - Google Patents
Detonation energy absorption device and vehicle equipped with sameInfo
- Publication number
- EP3977039A1 EP3977039A1 EP20724059.9A EP20724059A EP3977039A1 EP 3977039 A1 EP3977039 A1 EP 3977039A1 EP 20724059 A EP20724059 A EP 20724059A EP 3977039 A1 EP3977039 A1 EP 3977039A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- energy absorption
- absorption device
- webs
- fastening element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 64
- 238000005474 detonation Methods 0.000 title claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 6
- 230000000750 progressive effect Effects 0.000 claims description 6
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241001415801 Sulidae Species 0.000 description 1
- 230000001609 comparable effect Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H7/00—Armoured or armed vehicles
- F41H7/02—Land vehicles with enclosing armour, e.g. tanks
- F41H7/04—Armour construction
- F41H7/046—Shock resilient mounted seats for armoured or fighting vehicles
Definitions
- the invention relates to an energy absorption device for protecting a vehicle element, in particular a vehicle element of a military vehicle, from a detonation effect, comprising a first fastening element that can be connected to a vehicle chassis or a vehicle pan and a second fastening element that can be connected to the vehicle element to be protected , wherein at least two webs are arranged between the first and the second fastening element.
- the application also relates to a vehicle with such an Energyabsorbtionsvorrich device.
- a cabin for a construction vehicle which has at least one hydraulically damped rubber bearing means and at least one roll stabilization means in the stain area of the cabin. This improves the spring comfort of the cabin for faster transport journeys. Basically, however, suspensions for construction machine cabs pursue completely different objectives - they do not offer any protection against detonation - than suspensions for military vehicles, so that these are not comparable.
- Suspensions of vehicle elements of military vehicles are known, for example, from DE 10 2008 053 152 A1 and WO 2014/048420 A1. These documents each show defor mation means that store a vehicle element.
- the deformation means are designed to be deformed in the event of a mine impact and to absorb energy so that the mine impact cannot be transmitted directly to the vehicle element. Both the Fastening means and the webs are not provided in a common plane, but should move past one another when deformed.
- the deformation devices disclosed in these publications from DE 10 2008 053 152 A1 and WO 2014/048420 A1 are relatively large and only inadequately solve the conflict of objectives between elastic storage and energy absorption in the case of plastic deformation.
- the invention is based on the object of creating an Energyabsorbtionsvorrich device for a vehicle, in particular a military vehicle, which is compact and solves this conflict of objectives.
- an energy absorption device for protecting a vehicle element, in particular a military vehicle, from a detonation effect.
- the energy absorption device comprises a first fastening element, which can be connected to a vehicle chassis or a vehicle pan, and a second fastening element, which can be connected to the vehicle element to be protected.
- At least two webs are arranged between the first and the second fastening element. The at least two webs are arranged in such a way that they lie one above the other in a common plane.
- a vehicle in particular a military vehicle, is provided according to the invention, comprising such an energy absorption device or as described below and a vehicle element, the vehicle element being connected to the vehicle via the energy absorption device.
- the vehicle can be a wheeled or tracked vehicle, for example.
- the tracked vehicle can be, for example, an armored recovery vehicle, an engineer tank, a mine clearance tank, an armored personnel carrier or a battle tank.
- the wheeled vehicle can, for example, be a heavy truck, a tractor-trailer, a crane or an armored vehicle.
- the energy absorption device creates a compact energy absorption device which, on the one hand, provides an elastic mounting of the vehicle element that can be connected to it and which can also absorb high energy in the form of change work in the event of a detonation.
- the vehicle element that is connected to the energy absorption device can be, for example, a cabin or a shelter of a vehicle.
- the cabin can be a protected cabin.
- the vehicle element can be a structure, a platform, a floor, a vibrating floor, an intermediate floor, a floor plate or a component of one of the aforementioned elements.
- the vehicle element can be a footplate, a seat device, a weapon system, a device holder, a shelf or a component of one of the aforementioned elements.
- the energy absorption device protects the vehicle element from a detonation effect, such as that e.g. can be caused by a mine or a booby trap.
- the energy absorption device according to the invention makes it possible for it to be plastically deformed in a controlled manner in the event of a detonation and for the vehicle element that can be connected to it not to suffer any damage.
- the webs have at least one deformation zone.
- the at least one deformation zone is a zone in which the webs are plastically deformed when they are correspondingly strongly deflected. This is done through the design of the energy absorption device, which means that the webs are first deformed in the deformation zones.
- the webs in the deformation zones are weakened by the choice of material or geometry in such a way that they first deform in the deformation zones.
- first fastening element, the second fastening element, the at least two webs and the at least one deformation zone are arranged such that they lie one above the other in the plane that is perpendicular to the first and second fastening elements.
- the fastening elements and the webs of the energy absorption device are arranged in a harmonica-like manner in a common plane, so that a compact energy absorption device is created.
- the webs are designed to be flexurally elastic, so that the energy absorption device supports the vehicle element in a resilient manner.
- the energy absorption device allows elastic mounting of the vehicle element, provided the deflection is not too great.
- the vehicle element can be stored, whereas, in order to protect against a detonation effect, energy is absorbed by plastic deformation.
- the webs of the energy absorption device do not simply bend or break off, but rather a defined deformation is achieved in the area of the transition deformation zones of the webs.
- transition deformation zones are formed adjacent to the flexurally stiffened transition zones.
- the deformation zones are formed adjacent to the bend-reinforced corners. Furthermore, it can be provided that the deformation zones from the second fastening element to the first fastening element are at least partially more difficult to deform than the preceding deformation zones, so that the energy absorption device has a progressive deformation characteristic.
- the deformation sequence is specifically influenced so that the deformation zones are deformed in a defined sequence.
- the thickness of the webs from the second fastening element to the first fastening element increases, so that the energy absorption device has a progressive spring characteristic.
- the spring characteristic can alternatively be degressive.
- the webs are arranged in a zigzag fashion in alternating directions.
- inner radii are formed between the webs in rigid corners and / or inner radii are formed in the transition zones.
- notch stresses are specifically induced in the deformation zones.
- the notch stress that occurs can be influenced by the size of the radius of the inner radii, so that the size of the notch stresses and also the limit at which the deformation occurs can be set using the radius.
- the inner radii between the webs in rigid corners and / or the inner radii in the transition deformation zones from the second fastening element to the first fastening element can become larger.
- the deformation sequence is set in a targeted manner so that deformation gradually occurs from the second fastening element to the first fastening element. This ensures that the notch stresses within the deformation zones are highest directly on the first fastening element and the deformation also occurs first in the vicinity of the chassis.
- the inner radii between the webs in rigid corners and / or the inner radii in the transition zones from the first fastening element to the second fastening element become larger. This ensures that the notch stresses within the deformation zones are highest directly on the second fastening element and the deformation first occurs in the vicinity of the vehicle element.
- FIG. 1 shows a schematic representation of a first vehicle according to the invention with at least one deformation device according to the invention
- FIG. 2 shows a schematic representation of a second vehicle according to the invention with at least one deformation device according to the invention
- FIG. 3 shows a schematic representation of a third vehicle according to the invention with at least one deformation device according to the invention
- FIG. 4a shows a schematic representation of an energy absorption device according to the invention in an initial position
- FIG. 4b shows a schematic representation of the Energyabsorbtionsvor device according to the invention in an initial position with the level E being identified;
- Fig. 5 is a schematic representation of the Energyabsorbtionsvor direction according to the invention in an intermediate position
- Fig. 6 is a schematic representation of the Energyabsorbtionsvor device according to the invention in a deformed position.
- the 1 shows a first vehicle 1 according to the invention with a vehicle chassis 2.
- a vehicle element 10 is formed on the vehicle chassis 2.
- the vehicle 1 is preferably a military vehicle.
- the vehicle element 10 can be, for example, a cabin, a driver's cab, a platform, a structure or the like act.
- At least one energy absorption device 100 is arranged, which supports the vehicle element 10 on the vehicle 1.
- the energy absorption device 100 serves to protect the vehicle element 10 from a detonation effect and is shown in greater detail in FIGS. 4a to 6.
- the energy absorption device 100 according to FIGS. 4a to 6 is found in all vehicles according to FIGS. 1 to 3.
- FIG. 2 shows a second vehicle 1 ′ according to the invention, which essentially corresponds to the first vehicle 1, with the difference that the vehicle element 10 ′ is a floor or intermediate floor.
- the vehicle element 10 ′ is supported on the vehicle chassis 2 of the vehicle 1 by means of at least one energy absorption device 100.
- the vehicle element 10 ‘is net angeord within a cabin or a driver's cab.
- FIG. 3 shows a third vehicle 1 ′′ according to the invention with a vehicle pan 2.
- a vehicle element 10 ′′ is mounted within the vehicle pan 2 ′ by means of at least one energy absorption device 100.
- the vehicle element 10 ′′ can be, for example, a vehicle interior or a shelter. In a departure from FIG. 3, the vehicle element 10 ′′ can also be a floor or an intermediate floor.
- the vehicle element 10 ′′ is connected to the vehicle pan 2 by a plurality of energy absorption devices 100 and is stored within it.
- Fig. 4a shows a schematic representation of an Energyabsorbtionsvor device 100 according to the invention in an initial position, that is, a position in which the Energyabsorbtionsvor device 100 is not deformed.
- the energy absorption device 100 comprises a first fastening element 1 10, which can be connected to the vehicle chassis 2 or the vehicle pan 2 'of the vehicle 1.
- the first fastening element 110 is designed as a plate or sheet metal and, when installed, is connected to the vehicle chassis 2 or the vehicle pan 2 '.
- the energy absorption device 100 comprises a second fastening element 120 which can be connected to the vehicle element 10 to be protected.
- the second fastening element 1 10 is preferably also designed as a plate or sheet metal and is connected to the vehicle element 10 in an assembled state.
- the wall thickness and the dimensions of the first fastening element 110 and the second fastening element 120 can be adapted to the geometry of the energy absorption device 100 in a manner different from one another. As shown in FIG. 1, the first fastening element 1 10 may have a smaller wall thickness and be wider than the second fastening element 120.
- At least two webs 130, 140, 150, 160 are arranged between the first and the second fastening element 110, 120. In an embodiment, there can be four webs 130, 140, 150, 160 as shown in FIG. 4a.
- the first fastening element 110, the second fastening element 120, the webs 130, 140, 150, 160 and the deformation zones 172, 174, 182, 184, 192, 194 are arranged in this way that these are arranged one above the other in a common plane E, the common plane E being perpendicular to the two fastening elements 1 10, 120.
- the webs 130, 140, 150, 160 are arranged alternately in different directions in a zig-zag manner one above the other. In other words, the webs 130, 140, 150, 160 are arranged one above the other like a harmonica.
- the webs 130, 140, 150, 160 are each designed to be flexible.
- the length of the webs 130, 140, 150, 160 can differ from one another, so that for example a first web 130 and a fourth web 160, which are connected to the fastening elements 110, 120, are shorter than a second web 140 and third web 150 .
- Flexibly stiffened corners 170, 180, 190 are formed between the webs 130, 140, 150, 160.
- the flexurally stiffened corners 170, 180, 190 are designed such that they essentially do not bend and ensure that, in the event of an elastic deformation of the webs 130, 140, 150, 160, the flexurally stiffened corners 170, 180, 190 ensure that the Web 130, 140, 150, 160 cannot be folded up by deforming the corners 170, 180, 190. This ensures that in addition to elastic deformation in the event of a a plastic deformation of the deformation zones 172, 174, 182, 184, 192, 194 can take place.
- the webs 130, 140, 150, 160 each have at least one deformation zone 172, 174, 182, 184, 192, 194.
- the deformation zones 172, 174, 182, 184, 192, 194 are each formed adjacent to the flexurally stiffened corners 170, 180, 190.
- Flexibly stiffened transition zones 112, 122 are formed between the fastening devices 110, 120 and the respectively adjoining webs 130, 160. These have a comparable effect as the bend-reinforced corners 170, 180, 190.
- transition deformation zones 1 15, 125 are formed adjacent.
- a fourth radius R between the third web 150 and fourth web 160 is greatest.
- a third radius R 3 between the second web 140 and the third web 150 is smaller than the fourth radius (R 3 ⁇ R 4 ).
- a second radius R 2 between the first web 130 and the second web 140 is smaller than the third radius R3.
- the following mathematical relationship applies to the radii R2 to R4: R 2 ⁇ R 3 ⁇ R 4 .
- the inner radii Ri, R 5 in the transition zones 112, 122 are preferably of the same size according to FIG. 4a. As can be seen from FIG. 4a, the radii Ri and R 5 are both smaller than the radius R 2 .
- the following mathematical relationship applies to the radii Ri to R 5 :
- Ri R ⁇ ⁇ R 2 ⁇ R 3 ⁇ R 4 .
- the thickness ti, t 2 , t 3 , t of the webs 130, 140, 150, 160 can be made larger from the second fastening element 120 to the first fastening element 110, so that the energy absorption device 100 has a progressive spring characteristic.
- the following mathematical relationship applies to the thicknesses ti to t: ti ⁇ t 2 ⁇ t 3 ⁇ t.
- FIG. 4b again clearly illustrates the position of plane E, plane E being indicated by hatching. As can be seen from FIG. 4b, the plane E is perpendicular to the first and second fastening elements 110, 120.
- the first fastening element 110, the second fastening element 120, the at least two webs 130, 140, 150, 160 and the at least one deformation zone 172, 174, 182, 184, 192, 194 are arranged in such a way that they lie one above the other in plane E.
- Fig. 5 shows a schematic representation of the Energy absorption device 100 according to the invention in an intermediate position in which the energy absorption device 100 is elastically deformed.
- the rigid corners 170, 180, 190 are essentially undeformed in this intermediate position and the webs 130, 140, 150, 160 are elastically deformed.
- 5 shows the energy absorption device 100 in an elastically compressed state.
- Fig. 6 shows a schematic representation of the Energyabsorbtionsvor device 100 according to the invention in a deformed position in which the energy absorption device 100 is plas table deformed.
- the deformation zones 172, 174, 182, 184, 192, 194 are at least partially more difficult to deform from the second fastening element 120 to the first fastening element 110 than the preceding deformation zones 172, 174, 182, 184, 192, 194, so that the energy absorption device 100 has a progressive deformation characteristic.
- a deformation sequence of the deformation zones of the energy absorption device 100 is specified by the different degrees of deformation.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vibration Dampers (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019114514.7A DE102019114514A1 (en) | 2019-05-29 | 2019-05-29 | Energy absorbing device and vehicle |
PCT/EP2020/062269 WO2020239362A1 (en) | 2019-05-29 | 2020-05-04 | Detonation energy absorption device and vehicle equipped with same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3977039A1 true EP3977039A1 (en) | 2022-04-06 |
EP3977039B1 EP3977039B1 (en) | 2023-11-22 |
Family
ID=70554052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20724059.9A Active EP3977039B1 (en) | 2019-05-29 | 2020-05-04 | Blast wave energy absorption device and vehicle equipped with such a device |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP3977039B1 (en) |
AU (1) | AU2020284371B2 (en) |
CA (1) | CA3142087C (en) |
DE (1) | DE102019114514A1 (en) |
DK (1) | DK3977039T3 (en) |
ES (1) | ES2969453T3 (en) |
FI (1) | FI3977039T3 (en) |
HU (1) | HUE065437T2 (en) |
PL (1) | PL3977039T3 (en) |
SG (1) | SG11202113139SA (en) |
WO (1) | WO2020239362A1 (en) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4752058A (en) * | 1986-12-04 | 1988-06-21 | Weber Milton N | Shock-absorbing support rail |
US5280889A (en) * | 1991-04-08 | 1994-01-25 | Texas Instruments Incorporated | Shock isolator |
DE4341952B4 (en) * | 1992-12-18 | 2010-01-21 | Volkswagen Ag | Vehicle seat with a fully or partially folding backrest |
US5813649A (en) * | 1996-03-13 | 1998-09-29 | Simula, Inc. | Energy-absorbing deformable bracket |
US6394241B1 (en) * | 1999-10-21 | 2002-05-28 | Simula, Inc. | Energy absorbing shear strip bender |
DE10033340C1 (en) * | 2000-07-08 | 2001-10-25 | Daimler Chrysler Ag | Seat fixing device, for vehicle, has rail in which seat moves and at least one foot element connected between rail and vehicle floor and having deformation section to absorb energy in accident |
IL160939A (en) * | 2004-03-18 | 2010-11-30 | Plasan Kibbutz Sasa | Energy absorbing device for a vechicle seat |
FR2901750A1 (en) * | 2006-05-31 | 2007-12-07 | Jean Michel Ritter | Device for progressively absorbing an acceleration induced at an occupant seat of a vehicle with large wheels or a endless track, comprises panels that are preformed and assembled to deform itself progressively under the effect of crushing |
DE102007002576A1 (en) * | 2007-01-11 | 2008-07-17 | Rheinmetall Landsysteme Gmbh | Decoupled pedal unit in a mine protected, in particular military vehicle |
DE102008053152B4 (en) * | 2008-10-24 | 2012-05-31 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Deformation element for protecting a device, in particular a footrest plate, in a particular military vehicle |
DE102010052151A1 (en) * | 2010-11-22 | 2012-05-24 | Liebherr-Werk Bischofshofen Gmbh | Cabin, particularly vehicle driver's cabin for construction vehicle, particularly wheel loader, has hydraulically damped rubber mounting unit and rolling stabilizing unit at rear side of cabin |
DE102012103036A1 (en) * | 2012-04-10 | 2013-10-10 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Housing, especially against detonation protected vehicle housing |
DE102012109190B4 (en) * | 2012-09-27 | 2014-05-28 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Deformation element and method for producing a deformation element |
-
2019
- 2019-05-29 DE DE102019114514.7A patent/DE102019114514A1/en active Pending
-
2020
- 2020-05-04 ES ES20724059T patent/ES2969453T3/en active Active
- 2020-05-04 AU AU2020284371A patent/AU2020284371B2/en active Active
- 2020-05-04 PL PL20724059.9T patent/PL3977039T3/en unknown
- 2020-05-04 EP EP20724059.9A patent/EP3977039B1/en active Active
- 2020-05-04 HU HUE20724059A patent/HUE065437T2/en unknown
- 2020-05-04 FI FIEP20724059.9T patent/FI3977039T3/en active
- 2020-05-04 CA CA3142087A patent/CA3142087C/en active Active
- 2020-05-04 DK DK20724059.9T patent/DK3977039T3/en active
- 2020-05-04 WO PCT/EP2020/062269 patent/WO2020239362A1/en unknown
- 2020-05-04 SG SG11202113139SA patent/SG11202113139SA/en unknown
Also Published As
Publication number | Publication date |
---|---|
CA3142087C (en) | 2024-04-30 |
ES2969453T3 (en) | 2024-05-20 |
WO2020239362A1 (en) | 2020-12-03 |
EP3977039B1 (en) | 2023-11-22 |
SG11202113139SA (en) | 2021-12-30 |
DK3977039T3 (en) | 2024-01-29 |
DE102019114514A1 (en) | 2020-12-03 |
CA3142087A1 (en) | 2020-12-03 |
AU2020284371A1 (en) | 2021-12-23 |
AU2020284371B2 (en) | 2023-09-28 |
FI3977039T3 (en) | 2024-01-15 |
PL3977039T3 (en) | 2024-03-25 |
HUE065437T2 (en) | 2024-05-28 |
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