DK1464915T4 - Mine protection arrangement - Google Patents

Mine protection arrangement Download PDF

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Publication number
DK1464915T4
DK1464915T4 DK03007323.3T DK03007323T DK1464915T4 DK 1464915 T4 DK1464915 T4 DK 1464915T4 DK 03007323 T DK03007323 T DK 03007323T DK 1464915 T4 DK1464915 T4 DK 1464915T4
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layer
protection
mining
functional layer
layers
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DK03007323.3T
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Danish (da)
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DK1464915T3 (en
Inventor
Gerd Kellner
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Krauss Maffei Wegmann Gmbh & C
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H7/00Armoured or armed vehicles
    • F41H7/02Land vehicles with enclosing armour, e.g. tanks
    • F41H7/04Armour construction
    • F41H7/042Floors or base plates for increased land mine protection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00Armour; Armour plates
    • F41H5/02Plate construction
    • F41H5/04Plate construction composed of more than one layer
    • F41H5/0442Layered armour containing metal

Description

Description
The invention relates to a '' polyvalent '' mining protection device according to claim 1.
The protection of armored vehicles, especially of their passengers and crew against both explosion and projectile-forming mines, has become increasingly important, since armor mines, especially when deployed in crisis areas, are expected. Therefore, as far as possible, efforts should also be made to protect lighter vehicle weight classes as effectively as possible against mining threats. This applies not only to the development of new vehicles, but also to the later equipment of systems already introduced.
Regarding the effect of a mine explosion, two criteria must first be taken into account: first, a blow or pressure wave resulting from the detonation of explosives, and secondly, the impact of projectiles formed by '' flat charge mines ''. In addition, hole charging mines exist, such as the German mine AT II, the impact of which is so great that the bottom of a vehicle - including a possible mine protection - can be broken. Therefore, a good mine protection should at the same time be well suited for - in penetrating the mine protection with the aid of a HL beam - to induce a small explosive cone or to confine the explosive cone to the area inside the vehicle.
When blasting the floor area of an armored vehicle, such as a firing or combat armor vehicle, by means of a pressure mine (eg with an explosive charge in the range of 5 to 10 kg TNT equivalent), due to the explosion effect, a dynamic deflection or a deflection of the vehicle bottom within a period of time of approx. one millisecond. The amplitude then depends on the mass of the explosive charge, the distance of the charge from the well structure and the thickness of the vehicle bottom and its mass respectively. In the case of armored vehicles, the dynamic deflection usually ranges from 200 mm to 300 mm. In addition, the speed at which the bottom of the vehicle is pressed out can reach top speeds in excess of 300 m / s. In addition, the dynamic deflection of the vehicle bottom will result in a corresponding dynamic deformation of the sidewalls, so that attached equipment is torn out of the equipment's holders and uncontrolled will fly through the interior space. Therefore, it would be technically optimal to have a protective measure against such mining loads, which prevents - or at least sufficiently restricts - the dynamic deflection of the vehicle bottom and thus also the load on the sidewalls. US 4,404,889 discloses a composite armor for armored vehicles, and in particular concerning the bottom of the vehicle; The armor consists mainly of seven layers and five basic materials: an outer armor steel plate, a "honeycumb" structure, a thin steel foil, a ballistic protective layer of Kevlar, another thin steel foil, balsa wood and an inner armor steel plate. The "honeycumb" structure can also be filled with materials that also enhance the ability to absorb an explosion effect. The balsa tree will be compressed in conjunction with a dynamic deflection of the composite structure due to the explosion effect, thus providing a deformation space for the pre-placed ballistic Kevlar protective layer. DE 197 34 950 C2 discloses a mining protection device consisting of a layer construction, the main component of which is a structural element plate which, in conjunction with the other metallic and non-metallic layers, can impair the dynamic deflection of a vehicle's bottom and impair its bottom. plastic deformation.
From DE 29 34 050 A1 is known a compound plate for armor ring of internal vehicle compartment, which has a construction with two armor steel plates and a filling layer of hard foam or wood and intermediate layer of GFK.
Also in DE-OS 22 01 637 (basis of claim 1) a multilayer structure is described, where there is between a two layers of steel a composite body of steel fiber web and polyurethane foam. The steel fibers may in this connection also be embedded in various other plastics or blend polymerisates.
As a state of the art, it must therefore be assumed that sandwich designs of the various materials and in connection with many devices are known. Admittedly, these devices only concern the purpose of averting the threat of an explosion mine or of minimizing the impact of this mine on the armored vehicle.
The opposite is the effect of an equally widespread type of mine, the so-called "flat charge" mines (FL mines) or mines consisting of projectile forming charges (P charge mines), which primarily have a high impact force through a the blast formed projectile which - when a mine detonates - is formed by a '' mine insert ''. These posts consist e.g. of soft iron or other metallic materials which allow a pyrotechnic conversion to form a projectile. For such FL mines or P charge mines, the ballistic impact of the vehicle's bottom is more localized than for pure explosive mines. Here, the load is determined primarily by the dimensions, contour and impact velocity of the projectiles formed. Due to the very high projectile velocity, which is on the order of from 1,800 m / s to over 2,000 m / s, such threats fail in the ordinary mining protection devices intended only to act against the explosion threat.
In addition, U.S. Patent No. 5,905,225 discloses a mine protection device with a layer structure which is intended to be particularly effective against projectile-forming mines. Thus, this print shows a typical composite armor with two steel plates between which an absorbent layer is provided. This intermediate layer is formed by means of a brittle material, e.g. glass or ceramic, which is known in the art to be effective in absorbing energy from projectiles by being scattered. In addition, to be able to intercept the dynamic bulge resulting from an explosion wave - and this by means of a rear metal layer - this layer of construction is arranged so that it has a great distance to the vehicle floor to be protected.
The object of the present invention is to provide a polyvalent mining protection device which is designed not only to compensate to a great extent for the threat of armor-defense mines with explosion and projectile effects, but also to ensure that the deformed target surface become as small as possible and that the dynamic deflection as well as the persistent bulge also becomes as small as possible.
This object is achieved by means of a mining protection device having the features set forth in claim 1. Advantageous embodiments and further embodiments of the invention are set out in the subclaims.
In the development of the mine protection device according to the invention, the inventor has assumed the following considerations.
A polyvalent mine protection must in essence combine two characteristics: it must, as far as possible, compensate for the energy or impulse transfer caused by the explosion wave to the vehicle structure, ie. the mine protection must be in accordance with the present '' structure '' and must be capable of capturing the impact of the projectiles formed by the P-charge insert. In addition, in the case of mining protection, it must of course be assumed that the statement about the conservation of energy and the statement about the conservation of the impulse remain valid.
The above-mentioned requirements must in the main be fulfilled by means of homogeneous plates with ideal elastic-plastic conditions, ie. that a growing mining threat had to be confronted solely with an increasing plate thickness (mass) or structural "strength". The lack of ideally proportionate materials and limited mass readiness for a reduced design depth for the vehicle to be protected require technical / physical viable solutions, especially in the case of polyvalent mining protection - due to the different Species of Threats - Requires mastery of complex ballistic contexts. In this connection, it must also be borne in mind that in the case of homogeneous plates, a load of plates in connection with P charges leads to so-called "punching" impacts, which not only results in an energy-efficient favorable armor impact, but in the main thing is also associated with very large spreads. Therefore, behind the actual required thickness, another security body should be connected. Since the depth of penetration and the penetration depth, respectively, increase at least linearly with the '' force of force '' in connection with a threat, a separation of homogeneous solutions corresponding to the above considerations is seen. At the same time, the range of possible threats is arbitrarily large. A polyvalent mine protection must therefore also be largely independent of a few threat-specific parameters. It must still be possible to finance such mining protection, ie. could be used commonly and as far as possible independently of the system. Due to the restriction on masses and thicknesses, an effective mining protection must exhibit a superior structure to the homogeneous plate and at the same time reduce the final ballistic impact result compared to armor steel. However, in recent years by counter-penetration using KE penetrators (penetrating parts) relatively large mass factors have been sought (the coefficient between the equivalent armor steel to be broken compared to the mass to be broken at the considered target) of the order of 2, which, however, can only to a limited extent be transferred to the final ballistic performance of projectile-forming mines. On the other hand, these are extremely short disk-like penetrating parts, which, especially because of their high velocity when they hit, produce large peak dynamic loads on large surfaces. It is therefore important to deprive the striking P-charge projection some speed and at the same time quickly make the affected surface larger. In addition, it should be able to maintain the 'counter-force' to the target for as long as possible in order to optimize the energy-absorbing effect and to extend the transmission of the impulse over time; and all of this, provided as far as possible a small dynamic and also plastic bulge on the inside of the vehicle to be protected. The latter requirement therefore - in addition to the physical / technical procedures described above - also assumes a great deal of underlying protective effect or structural strength.
This has defined the criteria to be taken into account in the construction of a polyvalent mining protection. The present invention translates these considerations into a technically particularly effective way, referring to the individual protection criteria described above, essentially three '' working plans '' or '' functional layers '', which must be optimally adapted to the existing technical progress.
When loading a vehicle's bottom due to an explosive charge exploding or a projectile leaving a flat charge mine, it is explained as above: the mass inertia of the primarily loaded or dynamically involved structural parts, the propagation of a shock or shock load, the individual the plastic deformation capability of the protective components, the "working path" (deflection) of the vehicle bottom due to the large dynamics of the movement and the permanent plastic deformation - which constitute the determining parameters;
According to the above considerations, at the beginning of the dynamic load or immediately after a impact - both in explosion and P charge mines, the effect of the mine (the striking '' plate '' in connection with P charge mines) should in the main event be able to withstand large mass, either via a corresponding thickness or a sufficient thickness of the initially affected material layer. In addition, one must be aware of the dynamic '' connection '' of the subsequent masses or layers, which usually happens with the wave propagation rate of the materials concerned. A key role in transferring the load between the shock waves here plays the so-called acoustic impedance, the product p x c, where p is the density of the material in question and c is the sound propagation speed. In this connection, the coefficient (ρϊ x Ci / p2 x c2) predicts something about the energy transmitted or reflected between the two layers 1 and 2.
Thus, according to the impulse conservation theorem, in connection with a mine plate "of steel of a certain thickness and by means of a friction layer (first functional layer or anterior mine protection plate) of steel - a certain thickness can be calculated by means of a wear layer (first functional layer or anterior layer) mine protection sheet) of steel of the same thickness and that the speed is approximately halved, e.g. from 2,000 m / s to 1,000 m / s. However, since it is a desire to extend the penetration procedure and dynamically engage the largest possible surface mass, the thickness ratio: first functional layer / impingent '' mining plate 'should, however, be greater than 1, thus due to vehicle-specific differences as far as possible between 1 and 3. Thus, the speed will be of the total projectile, which consists of the striking mining projectile and the co-accelerated mass of the first functional layer, will be reduced in the same ratio.
Plastic work (internal friction) can be provided either by a homogeneous component, e.g. a thick plate with sufficient dynamic-plastic conditions, or by means of constructive measures. These procedures are associated with the second function layer. From this, the projectile reshaped by the first functional layer arranged in front of it will be intercepted, whereby the energy supplied will dissipate or the impulse will be distributed over time. In this way, the subsequent support plan (the third functional layer) - under certain conditions of the vehicle bottom - can absorb the deformation energy still present. In connection with the '' collection path '' respectively the loaded target depth plays time and the mass minimized - ie. power optimized - the use of the materials concerned plays the crucial role. Therefore, in the context of mining protection, fiber-reinforced materials will be frequently used, especially against P-charge mines. In addition, it must be borne in mind that such substances, such as polymeric materials, can be dynamically very high at high loading rates. Dynamic hard substances usually undergo a major disturbance if it is a large surface, such as a hard surface. in connection with homogeneous armor steel plates (however, compare the other remarks concerning homogeneous mine protection structures).
The polyvalent mine protection device according to the invention may be stationary connected to the vehicle and be designed as a so-called integrated solution. Alternatively, the mine protection device may also be designed as an adaptable mine protection which is only attached to a vehicle when needed. This has the advantage that the vehicle and the mine protection device can be logistically treated separately and that the vehicles are first provided with the mine protection device when they are to be used in an area plagued by mines. Such a modular, adaptable construction method also allows for short-term adaptation to changing requirements or technical new developments. However, the mine protection according to the invention may also consist of a '' mixed '' device, i.e. of an externally adapted and at the same time integrated device of the vehicle structure, so that to a certain extent can be taken into account given conditions in connection with a predetermined vehicle structure; or any necessary retrofits may be taken into account for existing vehicles.
Further details will be apparent from the following description of the drawing which shows examples of the invention. The figures show only the essential features of the invention, therefore they are greatly simplified. In the drawing, Figure 1 shows a schematic overall view, Figure 2 is a section through substantially of a mining protection device according to the invention, Figure 3 is a polyvalent mining protection device operation, Figure 4 is a section through a mining protection device in the form of an adapted device, Figure 5 is a section through a mining protection device. FIG. 6 is a section through a mine protection device with a vehicle "tub" bottom as the third functional layer; and FIG. 7 is a section through a split mine protection device. In Figure 1, the structure of a mining protection together with the corresponding threats is greatly simplified. One considers vehicle floor 1 as an example of a wall intended to protect an object and which is exposed to a mining threat; a mine protection device 2 is inserted in front of it. This will be affected by an explosion wave 5 and / or a P-charge projectile 6 caused by a P-charge or explosion threat 4. The arrows 7 and 8 symbolize The propagation path 5 or 6. of the threat is shown in Figure 2. The mining protection device according to the invention is shown in its principle construction, so that it can handle both types of threat: explosion mines and P-charge mines. A first functional layer 9 located on the load side, i.e. an outer wall and thus facing the mine in the mine protection device 2, e.g. of a steel plate. This first functional layer 9 should at least be selected such as the '' system offsets '' in connection with the vehicle floor e.g. requires against stone or wear. In this connection, it is sufficient if you work with non-armor steel with a thickness of 4 mm to 6 mm and a hardness of 400 to 500 HB. At the same time, the first layer of function fulfills an important function of the protective effect of the entire mining protection device, namely a speed reduction (see the above comments). Of course, other, very powerful materials may come up in this regard as well. However, it must be assumed that high quality steel armor plates can provide the best cost / benefit ratio. Generally, the first functional layer 9 should be of an armor plate or metal alloy of very high tensile strength and with a thickness of at least the "steel equivalent" thickness of an insert in a '' projectile forming 'mine 4, preferably 4 mm to 12 mm. Figure 3 shows the operation of a centrally located second functional layer 10 and the associated first and third functional layers 9 and 11 (in connection with the vehicle floor 1); the example shows a case where there is a threat from a P-charge projectile. Due to the co-acceleration that a plate section 15 - serving as erosion or wear layer at the functional layer 9 of the projectile 6 - has, the energy shown by the symbolic motion game 8 (Figure 2) will be reduced radially and simultaneously radially ( symbolized by the arrows 8A). At the same time, in the second functional layer 10, a pressure field propagates (see arrow 8B), which then propagates the energy in the radial direction and the subsequent third functional layer 11 (minus the energy fraction used by the second functional layer 10 for the time considered). According to the principle that action is equal in response, the 'invading bodies' will be exerted at roughly equal '' delaying forces ''. Some arrows 16 symbolize the dynamic / mechanical counter-force of the third layer 11, possibly enhanced by the "support force" from the ground 1. In a further embodiment of a mine protection device according to the invention, some supporting layers 12, 13 between the functional layers 9, 10 and 11 may also be designed as sliding planes 12A, 13A. Such sliding planes or guiding layers are provided by simply laying the planes against each other or placing fabrics that support sliding. In the middle second functional layer 10, the actual final ballistic capture of the P-charge projectile or explosion occurs. The second functional layer must therefore be regarded as the central functional layer that acts against the way the P charge works. This second functional layer 10 consists of a material which under high dynamic load remains plastically liquid or mechanically erosive; thus, this layer has optimum end-ballistic protective properties. Such materials can e.g. be metals or metal alloys. However, they can also be made using olefins, grease or wax. Due to the above mentioned properties of the second functional layer 10 and the relatively low thickness of this layer, thermoplastics or elastomers (eg nylon, PC, PE, PP, Teflon, rubber or polymers) or amorphous substances such as . glass, talk. In connection with the last two materials, after a projectile loading or deceleration, there may be degradation in the target by a solution or '' delamination '' of energy (however, compare the above comment regarding the dynamic hardness of such substances).
For the second layer 10, metal layers of aluminum or magnesium alloys, soft iron, copper and all the way to Tantal are also suitable. Molded materials, due to their special properties of damping and sliding conditions, may also be of interest in connection with the second functional layer 10. For the sake of completeness, it should also be mentioned that the second functional layer 10 may be composed of several layers, e.g. be made up of a combination of the materials mentioned above.
Between the first and second functional layers 9 and 10 there may be a '' surface connection layer '' 12. This can partly connect the functional layers so that they remain connected with each other during the dynamic deflection, but can also provide a dampening of the explosion effect, cf. the above explanation, and limit the punching effect of the projectile. As advantageous for the staple, when something hits the mine, a rubber layer 12 has been found to be capable of speaking, since the connection between the individual functional layers (here 9 and 10) can then be made by vulcanizing a special CR rubber jug. With the aid of this surface connection layer 12, a large dynamic load can result in large lateral tensile forces which are absorbed as a result of the deflection of the individual functional layer, whereby the mass of the target can be dynamically engaged laterally. Generally, the use of polymeric materials such as junction layer 12 permits many '' recipe properties '' - a high degree of adaptability to the given structure.
However, suitable for said connection layer 12 are also other plastics, e.g. thermoplastics. It is also conceivable that the junction layer 12 may be made of thin metallic or non-metallic layers / films which exhibit a particularly favorable impedance ratio.
Thus, the second functional layer 10 primarily fulfills the purpose of preventing a '' punching '' or '' punching '' of the mining protection by means of the FL projectile and - as far as possible - to increase the loaded surface. The second function layer distributes, due to its flowability - especially at high dynamic load, ie. when the P-charge projectile is in a velocity range with accelerated '' target masses' of 1,000 m / s to 500 m / s - the load over an even larger surface. This is associated with a further reduction in penetration rate.
After the first and second functional layers 9 and 10 (with the connecting layers 12 and 13 and 12A and 13A respectively), a third functional layer 11 serving as a support layer or additional energy compensation layer is provided (cf. the explanation given above). Here, the mass, hardness and dynamic-mechanical properties of the material play a crucial role in the subsequent bulging. The third functional layer will preferably be formed of high tensile armor steel or metal alloys and constitute the end formed by the vehicle on the mine protection device according to the invention.
Between the second and third functional layers 10 and 11, a second connecting layer 13 may be arranged which can take on the same function as the connecting layer 12. may be necessary if the mining protection device was manufactured as a custom '' sandwich '' (the connecting layer to the subsequent third functional layer 11). It may be appropriate in certain circumstances if the two - and possibly additional "tensile surface" joint layers 12, 13 - are made of different materials and wall thicknesses, depending on whether the damping or the transmission of the respective connecting layers plays a greater role. In addition, the connecting layers 12A and 13A may be of materials with good sliding properties; this to support the '' spread '' in the functional layer.
Determining a viable polyvalent structure of the mining protection device is due to the required load (eg 8 kg TNT equivalent) of the necessary steel equivalent mass. In this mass, the predetermined bottom structure 1 provided by the vehicle may be at least partially contained. Due to experimental '' performance values '', for the mining protection device with a construction according to the invention, distinct advantages over the hitherto used, yet in development and explosion optimized mine protection devices could be ascertained. Thus, in similar experiments with externally placed (custom) mine protection structures, both threats with comparable dynamic values of deflection and movement of the vehicle bottom could be mitigated by a factor of 1.5 to 1.8 inferior "total protective masses" compared to a pure steel solution.
Also, an increase in the threat from flat-loading mines, e.g. from "performance-enhanced" mines of type TMRP 6 with increased projectile velocity, can be mitigated and this by means of a corresponding optimization of the mining protection device 2 according to the invention, especially the second functional layer 10, by making a relatively small increase in mass. This cannot be achieved in the designs used so far within the weight limit limits applicable to armored vehicles. In addition to Figure 2, Figure 4 shows a section through a mining protection device 2 adapted to the vehicle bottom 1. A connecting surface 14 between the mining protection device and the vehicle bottom 1 can here be a side force transmitting layer or a clean interface between the mining protection device and the vehicle bottom. In this case, the functional layers 9 to 11 shown in Fig. 2 are arranged in front of the vehicle bottom 1. Such an adapted layer construction can be fixedly connected to the vehicle floor 1 or first in front of the '' place 'by means of a simple mechanical' 'center'.
The adapted device described in connection with Fig. 4 may in the main be replaced by a adapted / integrated device (Fig. 5), where a part of the functional layers is placed behind the loaded side, ie. behind the outer vehicle bottom 1 in the interior of the vehicle (integrated), while the remaining part of the functional layer of the exterior is placed on the bottom of the vehicle 1 (adapted). In this case, at least the first functional layer (wear layer) 9, the connecting layer (attenuation) 12 and the second functional layer 10 should be located outside the vehicle bottom 1, while the third functional layer (the energy compensation layer) 11 is placed behind the vehicle bottom 1. Such a device is particularly advantageous if the vehicle bottom, which is made of armor steel, is relatively thin and the third functional layer 11 can be applied without problems on this bottom.
All the details shown in the figures and in the description are important to the invention. In this connection, it should be mentioned that a feature of the invention is that all the said details can be combined in any way - single or multiple - and thereby achieve an individually tailored polyvalent mining protection. In Figure 6, the bottom of the vehicle constitutes both a support and an energy compensation plane, so that the third functional layer 11 can lapse. In this example, the first functional layer is divided into an outer power transmission layer 9A and a subsequent inner advance 9B. Such a device can serve to improve the "co-acceleration" of the structural parts, preventing an early punching. This embodiment of a mine protection device is not an object of the present invention and serves merely to provide a better understanding of the invention.
Finally, Figure 7 shows a section through a split mine protection device 2, where a gap 17 exists between the bottom 1 of the vehicle and the third functional layer (the energy compensation layer) 11, e.g. in the form of an ordinary intermediate layer which can accommodate or allow a dynamic bulge in the third functional layer 11. This example is representative of the conditional advantages (advantages) of the vehicle. Such spaces 17 can be planned to be accommodated so that the described overall function of the mining protection device according to the invention is not seriously disturbed. You may need to take constructive extra measures here.
In addition, it is possible that spaces between the functional layers can be provided in which supporting devices or layers / materials are preferably arranged so that the performance of the mining protection device is further improved. In all of the embodiments described above, the surface constructed in the mining protection device according to the invention may consist of one or more parts. Furthermore, there is the possibility that the surface constructed by the mining protection device may be flat, curved or angular, extending parallel to the wall or outer contour of the object or thereby forming an angle and / or determining an uneven / step-like thickness distribution.
List of designations 1 Bottom of a vehicle 2 Mining protection device 3 Earth 4 Mining threat 5 Explosion wave 6 P charge projectile 7 Explosion wave propagation direction 8 Direction of action of P charge projectiles 8A Arrows of the penetrating P charge projectile
8B Arrows showing the 2 spreading pressure field conditional on 8A 9 First functional layer (wear layer) 9A Outer wear layer 9B Internal advance 10 Second functional layer 11 Third functional layer (support and energy compensation layer) 12 Layer or surface between 9 and 10 12A 9 and 10 13 Layers or surfaces between 10 and 11 13A Applicable layers between 10 and 11 14 Interfaces between 1 and 11 15 Using 6 '' co-accelerated 'plate segment of 9 16 Arrows, support effect from vehicle bottom symbolically relative to 2 17 Spacings

Claims (15)

  1. A mining protection device for protecting an object against a threat to mines (4), consisting of a multi-layer layer construction and a first-function layer (9) of the armor steel plate facing the threat or a very strong metal alloy having a thickness of at least steel equivalent. the thickness of an insert in the projectile forming mine, a homogeneous middle second functional layer (10) of a material which becomes dynamically fluid or mechanically erodible under dynamic loading, and a subsequent third functional layer (11) of an armor steel plate or a steel equivalent device of various materials and wherein the layer structure (2) is arranged or can be placed at a threat-facing wall (1) at the object and the third functional layer (11) together with the object wall has a steel equivalent thickness of at least 25 mm.
  2. Mine protection device according to claim 1, characterized in that the layer structure (2) is firmly connected or integrated with the object to be protected and the wall (1) of the object, respectively.
  3. Mining protection device according to claim 1, characterized in that the layer structure (2) is at least partially formed as a separate structural part and is fixed or releasably integrally integrated with the object to be protected or its wall (1), respectively.
  4. Mine protection device according to one of claims 1 to 3, characterized in that the complete layer of construction (3) is arranged or can be placed on the side of the wall (1) which is threatened.
  5. Mining protection device according to one of claims 1 to 3, characterized in that a part (11) of the layer structure (2) is arranged on or can be placed on the side facing away from the wall (1), while another part (9, 10) ) is mounted on or may be placed on the threat-facing side of the wall (1).
  6. Mine protection device according to one of claims 1 to 5, characterized in that the first, second and third functional layers (9, 10, 11) are connected by elastomers, tensile forces transmitting connecting and damping layers (12 and 13), respectively.
  7. Mining protection device according to one of claims 1 to 5, characterized in that there are guiding layers (12A, 13A) between the functional layers (9, 10, 11).
  8. Mining protection device according to one of claims 1 to 7, characterized in that the second functional layer (10) consists of metallic materials, molded metallic materials, elastomeric fabrics or of thermoplastic, liquid or pasty materials or a combination of several of these materials.
  9. Mine protection device according to one of claims 1 to 8, characterized in that the first functional layer (9) and the second functional layer (10) are designed to have one or more sub-layers.
  10. Mining protection device according to one of claims 1 to 9, characterized in that the third functional layer (11) consists of steel, light metal or other material with high dynamic stiffness.
  11. Mining protection device according to one of claims 1 to 10, characterized in that between the third functional layer (11) and the wall (1) of the object to be protected there is an intermediate layer (17) which accommodates or allows a dynamic bulge of the third functional layer (11).
  12. Mining protection device according to one of claims 1 to 11, characterized in that there are spaces between the functional layers.
  13. Mining protection device according to claim 12, characterized in that supporting devices or layers / materials are provided in the spaces.
  14. Mining protection device according to one of claims 1 to 13, characterized in that the surface formed by the layer structure (2) is formed by one or more parts.
  15. Mining protection device according to one of claims 1 to 14, characterized in that the surface of the layer structure (2) is flat, curved or angled, extends parallel to the wall (1) or to the outer edge of the object or forms an angle thereof and / or exhibiting an uneven, stepwise thickness distribution.
DK03007323.3T 2003-04-01 2003-04-01 Mine protection arrangement DK1464915T4 (en)

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DK1464915T4 true DK1464915T4 (en) 2015-09-07

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EP (1) EP1464915B2 (en)
DK (1) DK1464915T4 (en)
ES (1) ES2391267T5 (en)
NO (1) NO333308B1 (en)
WO (1) WO2004088238A1 (en)

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DE102009012251A1 (en) 2009-03-07 2010-09-09 Rheinmetall Landsysteme Gmbh Protective device for protecting an object against projectile-forming mines
DE102009033563A1 (en) 2009-07-16 2011-01-20 Rheinmetall Landsysteme Gmbh mine protection
US8413567B2 (en) * 2010-06-23 2013-04-09 International Truck Intellectual Property Company, Llc Vehicle armor
US9146080B2 (en) * 2012-05-31 2015-09-29 Foster-Miller, Inc. Blast/impact mitigation shield

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NO20055069L (en) 2005-12-29
ES2391267T5 (en) 2015-08-10
ES2391267T3 (en) 2012-11-22
EP1464915B2 (en) 2015-06-03
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EP1464915B1 (en) 2012-07-11
NO20055069D0 (en) 2005-10-31

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