EP3977039B1 - Detonationsenergieabsorbtionsvorrichtung und damit ausgestattetes fahrzeug - Google Patents

Detonationsenergieabsorbtionsvorrichtung und damit ausgestattetes fahrzeug Download PDF

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Publication number
EP3977039B1
EP3977039B1 EP20724059.9A EP20724059A EP3977039B1 EP 3977039 B1 EP3977039 B1 EP 3977039B1 EP 20724059 A EP20724059 A EP 20724059A EP 3977039 B1 EP3977039 B1 EP 3977039B1
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EP
European Patent Office
Prior art keywords
vehicle
energy absorption
absorption device
deformation
securing 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.)
Active
Application number
EP20724059.9A
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German (de)
English (en)
French (fr)
Other versions
EP3977039A1 (de
Inventor
Kevin Lehmann
Ralf Koch
Martin Berg
Roland Niefanger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
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Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP3977039A1 publication Critical patent/EP3977039A1/de
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    • 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 which can be connected to a vehicle chassis or a vehicle tub and a second fastening element which 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 relates to a vehicle with such an energy absorption device.
  • a cabin for a construction vehicle which has at least one hydraulically damped rubber bearing means and at least one roll stabilizing means in the rear area of the cabin. This results in improved spring comfort in the cabin during faster transport journeys.
  • the suspensions of construction machinery cabins pursue completely different objectives - they do not offer any protection against detonations - than the suspensions of military vehicles, so they are not comparable.
  • the FR 2 901 750 already describes a device for protecting a vehicle seat against detonations according to the generic term.
  • the invention is based on the object of creating an energy absorption device for a vehicle, in particular a military vehicle, which is small in size 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 includes a first fastening element that is connectable to a vehicle chassis or a vehicle tub and a second fastening element that is connectable to the vehicle element to be protected.
  • At least two webs are arranged between the first and second fastening elements. 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, 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, for example, a wheeled or tracked vehicle.
  • the tracked vehicle can be, for example, a recovery vehicle, an engineer tank, a mine clearing vehicle, an armored personnel carrier or a main battle tank.
  • the wheeled vehicle can be, for example, a heavy truck, a tractor-trailer, a crane or a wheeled tank.
  • the energy absorption device creates a small-sized energy absorption device which, on the one hand, provides elastic support for the vehicle element that can be connected to it and, at the same time, can absorb high energy in the form of deformation 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 base plate, 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 can be caused, for example, 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 be damaged.
  • the webs have at least one deformation zone.
  • the at least one deformation zone is a zone in which the webs deform plastically when they are deflected to a correspondingly strong extent. This happens due to the design of the energy absorption device, which requires that the webs first deform 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 deform first 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 the second fastening element.
  • the fastening elements and the webs of the energy absorption device are arranged in an accordion-like manner in a common plane, so that a small energy absorption device is created.
  • the webs are designed to be flexible, so that the energy absorption device resiliently supports the vehicle element.
  • flexurally stiffened transition zones are formed between the fastening devices and the respective adjacent webs.
  • 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.
  • bend-stiffened, in particular substantially bend-resistant, corners are formed between the webs.
  • the deformation zones are formed adjacent to the bending-stiffened corners.
  • the deformation zones from the second fastening element towards the first fastening element are at least partially designed to be more difficult to deform than the previous deformation zones, so that the energy absorption device has a progressive deformation characteristic.
  • the thickness of the webs increases from the second fastening element towards the first fastening element, so that the energy absorption device has a progressive spring characteristic.
  • the spring characteristic can be degressive.
  • the webs are arranged in a zigzag manner in an alternating direction.
  • inner radii between the webs are formed in rigid corners and/or inner radii 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 stress and also the limit at which the deformation occurs can be adjusted by 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 become larger.
  • the deformation sequence is set specifically so that a deformation from the second fastening element to the first fastening element occurs gradually.
  • 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 to become larger. This ensures that the notch stresses within the deformation zones are highest directly on the second fastening element and the deformation occurs first in the vicinity of the vehicle element.
  • Fig. 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 similar act.
  • At least one energy absorption device 100 which supports the vehicle element 10 on the vehicle 1, is arranged between the vehicle element 10 and the vehicle chassis 2.
  • the energy absorption device 100 serves to protect the vehicle element 10 from a detonation effect and is described in more detail in the 4a to 6 shown.
  • the energy absorption device 100 according to 4a to 6 can be found in all vehicles Fig. 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 mounted on the vehicle chassis 2 of the vehicle 1 by means of at least one energy absorption device 100.
  • the vehicle element 10' is arranged within a cabin or a driver's cab.
  • Fig. 3 shows a third vehicle 1" according to the invention with a vehicle tub 2'.
  • a vehicle element 10" is mounted within the vehicle tub 2' by means of at least one energy absorption device 100.
  • the vehicle element 10" can be, for example, a vehicle interior or a protective space. Deviating from this Fig. 3
  • the vehicle element 10" can also be a floor or intermediate floor.
  • the vehicle element 10′′ is connected to the vehicle tub 2′ by several energy absorption devices 100 and is stored within it.
  • Fig. 4a shows a schematic representation of an energy absorption device 100 according to the invention in a starting position, i.e. a position in which the energy absorption device 100 is not deformed.
  • the energy absorption device 100 includes a first fastening element 110, which can be connected to the vehicle chassis 2 or the vehicle tub 2 'of the vehicle 1.
  • the first fastening element 110 is designed as a plate or sheet metal and is connected to the vehicle chassis 2 or the vehicle tub 2 'in the installed state.
  • the energy absorption device 100 includes a second fastening element 120, which can be connected to the vehicle element 10 to be protected.
  • the second fastening element 110 is preferably also designed as a plate or sheet metal and is connected to the vehicle element 10 in the installed 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 different ways. Like in the Fig. 1 shown, the first fastening element 110 can 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 second fastening elements 110, 120.
  • four webs 130, 140, 150, 160 are shown.
  • 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 such that they are one above the other in a common plane E are arranged, the common plane E being perpendicular to the two fastening elements 110, 120.
  • the webs 130, 140, 150, 160 are alternately arranged one above the other in a zigzag manner in different directions. In other words, the webs 130, 140, 150, 160 are arranged one above the other in an accordion-like manner.
  • 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.
  • the different lengths of the webs 130, 140, 150, 160 ensure that they can deflect elastically to different degrees and result in a defined bending pattern of the energy absorption device 100 in the event of an elastic deformation.
  • a bending figure as a result of an elastic deformation is, for example, in Fig. 5 shown.
  • Bending-stiffened corners 170, 180, 190 are formed between the webs 130, 140, 150, 160.
  • the bend-stiffened corners 170, 180, 190 are designed in such a way that they essentially do not bend and ensure that when the webs 130, 140, 150, 160 are elastically deformed, the bend-stiffened corners 170, 180, 190 ensure that the Webs 130, 140, 150, 160 cannot be folded together due to deformation of the corners 170, 180, 190. This ensures that, in addition to elastic deformation in the event of a With greater deflection, 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 bend-stiffened corners 170, 180, 190.
  • flexurally stiffened transition zones 112, 122 are formed. These have a comparable effect to the bend-stiffened corners 170, 180, 190.
  • transition deformation zones 115, 125 are formed adjacent to the flexurally stiffened transition zones 112, 122.
  • inner radii R2, R3, R4 are formed between the webs 130, 140, 150, 160 in the deformation zones 172, 174, 182, 184, 192, 194 and/or inner radii R1, R5 in the transition zones 112, 122.
  • Fig. 4a are the inner radii R2, R3, R4, which are formed between the webs 130, 140, 150, 160 in the rigid corners 170, 180, 190, increasing from the second fastening element 120 to the first fastening element 110.
  • a fourth radius R4 between the third web 150 and fourth web 160 is largest.
  • a third radius R3 between the second web 140 and the third web 150 is smaller than the fourth radius (R3 ⁇ R4).
  • a second radius R2 between the first web 130 and the second web 140 is smaller than the third radius R3.
  • the thickness t1, t2, t3, t4 of the webs 130, 140, 150, 160 can be made larger from the second fastening element 120 towards 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 t1 to t4: t1 ⁇ t2 ⁇ t3 ⁇ t4.
  • Fig. 4b clearly illustrates the location of level E again, with level E marked by hatching.
  • the plane E lies 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.
  • Fig. 5 shows the energy absorption device 100 in an elastically compressed state.
  • Fig. 6 shows a schematic representation of the energy absorption device 100 according to the invention in a deformed position in which the energy absorption device 100 is plastically deformed.
  • the deformation zones 172, 174, 182, 184, 192, 194 are designed to be at least partially more difficult to deform from the second fastening element 120 to the first fastening element 110 than the previous deformation zones 172, 174, 182, 184, 192, 194, so that the energy absorption device 100 is a has 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)
EP20724059.9A 2019-05-29 2020-05-04 Detonationsenergieabsorbtionsvorrichtung und damit ausgestattetes fahrzeug Active EP3977039B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019114514.7A DE102019114514A1 (de) 2019-05-29 2019-05-29 Energieabsorbtionsvorrichtung und Fahrzeug
PCT/EP2020/062269 WO2020239362A1 (de) 2019-05-29 2020-05-04 Detonationsenergieabsorbtionsvorrichtung und damit ausgestattetes fahrzeug

Publications (2)

Publication Number Publication Date
EP3977039A1 EP3977039A1 (de) 2022-04-06
EP3977039B1 true EP3977039B1 (de) 2023-11-22

Family

ID=70554052

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EP20724059.9A Active EP3977039B1 (de) 2019-05-29 2020-05-04 Detonationsenergieabsorbtionsvorrichtung und damit ausgestattetes fahrzeug

Country Status (11)

Country Link
EP (1) EP3977039B1 (da)
AU (1) AU2020284371B2 (da)
CA (1) CA3142087C (da)
DE (1) DE102019114514A1 (da)
DK (1) DK3977039T3 (da)
ES (1) ES2969453T3 (da)
FI (1) FI3977039T3 (da)
HU (1) HUE065437T2 (da)
PL (1) PL3977039T3 (da)
SG (1) SG11202113139SA (da)
WO (1) WO2020239362A1 (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025203132A1 (en) * 2024-03-26 2025-10-02 Waage Bjarki V Vehicle body comprising an inner body unit suspended within an outer body unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023115117A1 (de) * 2023-06-09 2024-12-12 Thyssenkrupp Ag Plastisch aufgehängte Delaborationsvorrichtung

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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 (de) * 1992-12-18 2010-01-21 Volkswagen Ag Fahrzeugsitz mit einer ganz oder teilweise klappbaren Rückenlehne
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 (de) * 2000-07-08 2001-10-25 Daimler Chrysler Ag Sitzbefestigungsvorrichtung
IL160939A (en) * 2004-03-18 2010-11-30 Plasan Kibbutz Sasa Energy absorbing device for a vechicle seat
FR2901750A1 (fr) * 2006-05-31 2007-12-07 Jean Michel Ritter Base de siege a capacite d'absorption des ondes de chocs
DE102007002576A1 (de) * 2007-01-11 2008-07-17 Rheinmetall Landsysteme Gmbh Entkoppelte Pedaleinheit in einem minengeschützten, insbesondere militärischen Fahrzeug
DE102008053152B4 (de) * 2008-10-24 2012-05-31 Krauss-Maffei Wegmann Gmbh & Co. Kg Deformationselement zum Schutz einer Einrichtung, insbesondere einer Fußauflagenplatte, in einem insbesondere militärischen Fahrzeug
DE102010052151A1 (de) * 2010-11-22 2012-05-24 Liebherr-Werk Bischofshofen Gmbh Kabine für ein Baufahrzeug
DE102012103036A1 (de) * 2012-04-10 2013-10-10 Krauss-Maffei Wegmann Gmbh & Co. Kg Gehäuse, insbesondere gegen Detonationswirkung geschütztes Fahrzeuggehäuse
DE102012109190B4 (de) * 2012-09-27 2014-05-28 Krauss-Maffei Wegmann Gmbh & Co. Kg Deformationselement und Verfahren zur Herstellung eines Deformationselements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025203132A1 (en) * 2024-03-26 2025-10-02 Waage Bjarki V Vehicle body comprising an inner body unit suspended within an outer body unit

Also Published As

Publication number Publication date
ES2969453T3 (es) 2024-05-20
PL3977039T3 (pl) 2024-03-25
CA3142087C (en) 2024-04-30
AU2020284371B2 (en) 2023-09-28
WO2020239362A1 (de) 2020-12-03
AU2020284371A1 (en) 2021-12-23
DE102019114514A1 (de) 2020-12-03
EP3977039A1 (de) 2022-04-06
HUE065437T2 (hu) 2024-05-28
SG11202113139SA (en) 2021-12-30
DK3977039T3 (da) 2024-01-29
FI3977039T3 (fi) 2024-01-15
CA3142087A1 (en) 2020-12-03

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