Device for control of level of force in energy absorber for aircraft

FIELD: machine building.

SUBSTANCE: device consists of case, of regulating element (801), of regulating plate (803) and of energy absorbing element (1). Plastic deformation of the energy absorbing element (1) occurs within boundaries of the case. Radius of the element for energy absorbing is smoothly regulated by means of regulating element (801). At actuation of regulating element (801) regulating plate (803) is transferred into direction of the energy absorbing element (1) so, that element of energy absorbing element moves along surface of contact of the regulating plate (803).

EFFECT: smooth regulation of force in energy absorber.

8 cl, 32 dwg

 

The scope of the invention

The presented invention relates to energy absorbers for aircraft. In particular, the invention relates to the regulation of the level of effort in the energy absorber for aircraft and such regulation efforts in the energy dampers on the plane.

Technological background of the invention

In aircraft use the brackets or fasteners for fixing and fastening equipment inside the aircraft, such as a headliner, overhead racks or power elements. Rigid fastening of the fastening elements is often unfavorable, especially when there is intense accelerations, such as those that may occur in case of strong turbulence, or, for example, in case of emergency landing, so that the resultant acceleration force is transmitted directly from the frame of the airplane through the brackets attached to onboard devices. Like all force or acceleration acting on the device inside the plane, passed through the brackets or mounts directly to the frame of the aircraft.

The sizes of existing brackets and on-Board devices, which they attach, can be calculated on the basis of static load or the maximum working load. There is a possibility of breakage of the bracket, e.g. is initiated by the on-Board device from excessive force acceleration which can lead to the destruction of the bracket, the on-Board unit or frame of the aircraft and, as a consequence, the risk for passengers in terms of injury or, at the worst, forced evacuation.

If the weight of on-Board devices is changed (for example, depending on the load), then the resulting force and the load may vary.

The purpose of this invention is to show how level management efforts in the energy absorber for aircraft, which provides flexible adjustment of the level of effort.

In accordance with the exemplary embodiment of the present invention is the device level management efforts in the energy absorber for aircraft, comprising a housing and an adjusting element, in turn, the energy absorber contains an element of repayment of energy to absorb the energy of acceleration, resulting in a plastic deformation, and plastic deformation of an element of repayment of energy occurs in the case where, by means of the adjusting element, the bend radius of an element of repayment of energy in the body is smoothly adjustable.

So, it might provide a flexible, customizable level adjustment efforts, which is achieved by a simple adjustment of the current load.

In accordance with the exemplary embodiment of the present invention device to regulate the Finance level efforts also contains adjustment plate, which moves under the action of the adjusting element in the direction of element absorption of energy in such a way that the element of maturity energy moves on the contact surface of the adjustment plate.

In accordance with the exemplary embodiment of the present invention the device level management efforts also contains a second adjusting element to move the adjustment plate, and the second adjusting element can be actuated independently of the first adjusting element.

Thus, it can be provided by increasing or decreasing characteristics of the efforts.

In accordance with the exemplary embodiment of the present invention the adjustment plate has a contact surface shaped element maturity energy curves under the action of the adjusting element in the area of the contact surface.

Through the element of repayment of energy, which is combined at least partially with the housing, the mechanical load on-Board device, which is connected through the energy absorber to the frame of the aircraft and which can represent, for example, a Luggage rack above the passengers may be limited. For example, the energy absorber can be designed to absorb energy acceleration resulting from motion of sa is Oleta. By absorbing the energy of the acceleration transmission from the frame of the airplane to the onboard device or from the onboard device to the frame can be reduced. This leads to increased passive safety in the cabin. In addition, when using the damper energy presented the invention with the elements of maturity of energy on-Board device can be constructed with minimal use of material and minimal weight, which reduces the maximum occurring stress. This allows to optimize the weight of all items included in the load characteristic (for example, an onboard device brackets and frame). Moreover, at the steady state static, the system allows a uniform load distribution, in particular with the structure deformed by the load.

By using the compound energy dampers, which are arranged parallel to each other and disposed flatwise on top of each other, the level of effort can be reduced. At the same time, the available space can be used more effectively and differently spaced elements repayment of energy (e.g., stacked) may have a more favorable stress distribution on the tiers, due to the presence in this case of two power lines.

Thus, with the quencher energy predstavlennoj the invention, the pulse power, produced in the collision with an obstacle, such as those that may arise in case of emergency landing, can be at least partially absorbed. Consequently, the resulting impulse force is transmitted not fully on-Board device, additionally, it significantly or partially extinguished until the specified level, which can avoid the problem.

In accordance with the law of plastic deformation, in the later absorption of multiple shock pulses directed both forward and in reverse. In other words, the energy absorber can operate in two directions (namely, through changes in the housing and thus to absorb the pulses in different directions.

In accordance with a further implementation of the present invention, the second element of repayment of energy superimposed on the first element of repayment of energy.

This ensures a better distribution of absorbed efforts in the case.

In accordance with a further implementation of the present invention, the energy absorber includes a third element of repayment of energy and the fourth element of repayment of energy, and in accordance with this, the third and fourth elements repayment of energy adjacent to the first and second element of repayment of energy so that both pairs of energy dampers are interconnected lane is the displacement of the rolling. The action of external forces can be reduced so that (in the case of a suitable structure) separate housing can be excluded, being made integral with the element to which it is attached (e.g., honeycombs with Luggage rack).

If this is not surface exposed to friction.

In accordance with a further implementation of the present invention, the frame includes a first plate, a second plate and a rigid support for the second element of repayment of energy and the first element of repayment of energy.

In accordance with a further implementation of the present invention the first element of repayment of energy is a longitudinal section, and the housing has an intermediate wall, which is mounted in the given section.

Thus, by longitudinal cutting of the sheet and dividing the housing intermediate wall into compartments became possible to significantly reduce the effort on the tiers.

In accordance with a further implementation of the present invention, the energy absorber includes a first section of the interconnection and the second section of accession. The first section of accession is intended for attachment of the energy absorber to the frame, and a second section joining is intended for attachment of the energy absorber to the onboard device.

Lots of accession may provide the th for example, a simple installation. In this case, the energy absorber may first be rigidly attached to the surface of the fuselage, a floor or the supporting elements of the frame. Then the airborne unit is permanently connected with the second connecting part of the energy absorber.

In accordance with a further embodiment of the present invention attaching the energy absorber to the frame or the onboard device manufactured by power or force connection.

Consequently, this ensures, for example, easy installation of the energy absorber. The first section of accession, moreover, may be relevant, for example in the form of a Cam, which is inserted into the rectangular portion of the mounting bracket. In this case, the Cam device may be constructed, for example, in such a way that, by means of this insertion, the quencher energy is captured by the bracket so that its fixed weight is held. For the final fixing of damper energy it can then be fixed by means of screws, rivets or self-blocking splints.

In accordance with a further embodiment of the present invention, the energy absorber has a regulating element. The adjusting element can change the bend radius item repayment of energy and, consequently, the lever arm. Thus the m ensured the required level of effort (regulated as different levels stable modes efforts, and increasing and decreasing modes).

Thus, the level of effort can be easily adjusted by moving the adjustment plate.

Moreover, the characteristic stress/displacement" can be adapted individually by modifying the profile of the adjustment plate. In addition, the energy absorber can be structured or profiled so that individually adjust to the characteristic stress/displacement".

For example, the adjustment plate may have a thickening or ledge, which contributes to additional bending element repayment of energy, which also affects the level of effort.

In accordance with a further embodiment of the present invention, the energy absorber has a direction energy absorption, in accordance with which, after exceeding the minimum effort (stress limit), which acts in the direction of energy absorption, energy absorption occurs through the absorber of energy.

Internal equipment (or similar), in the case of the minimum loads may be rigidly fixed, which can satisfy normal Board operation. During high load, such as from much of the nutrient pulse power, provides damping, in which the energy absorber is extended from the housing in the direction of the damping (or retracts into the body). Thus, intensive power pulses effectively extinguished.

In accordance with a further embodiment of the present invention provides the use of the energy absorber on the plane.

In accordance with a further embodiment of the present invention a method of energy dissipation in an aircraft includes pulling the first element of repayment of energy and the second element of the maturity of energy from the body and energy absorption acceleration through plastic deformation of the first element of repayment of energy and the second element of the maturity of energy inside the body during extrusion, where the second element of the repayment of energy arranged in parallel to the first element of repayment of energy and is located at him flatly.

Hereinafter the invention will be described in more detail for specific examples with reference to the drawings.

Figa is a schematic cross-section of the energy absorber.

FIGU is a schematic representation of the energy absorber Figa in the plan.

Figa is a schematic cross-section of the energy absorber.

Figv is the following schematic image is depicting the cross section of the energy absorber Figa.

Figa is a schematic cross-section of the energy absorber.

Figv following is a schematic cross-section of the energy absorber Figa.

Figa is a schematic cross-section of the next quencher energy.

Figv following is a schematic cross-section of the energy absorber Figa.

Figa is a schematic cross-section of the energy absorber.

Figv following is a schematic cross-section of the energy absorber Figa.

Figa represents the energy absorber in schematic cross section.

Figv following is a schematic cross-section of the energy absorber Figa.

Figs is an enlarged view of the energy absorber Figa.

Figa is a schematic cross-section of the energy absorber.

Figv following is a schematic cross-section of the energy absorber Figa.

Figa is a schematic cross-section of the energy absorber in accordance with one example implementation of the present invention.

Figv following is a schematic cross-section of the energy absorber Fig is.

Figs is the characteristic stress/displacement" of the energy absorber in accordance with the design shown on Figa, 8B.

Fig.8D is the quencher energy Figa, 8V with powered adjustment element.

File is a corresponding curve is the characteristic stress/displacement" of the energy absorber in accordance with the design shown in Fig..8D.

Figa represents the energy absorber with an adjusting element in accordance with the following sample implementation of the present invention.

Figv is the corresponding characteristic stress/displacement" of the energy absorber in accordance with the design shown on Figa.

Figs is the quencher energy Figa, in which the adjusting elements are powered differently.

Fig.9D is the corresponding characteristic stress/displacement" of the energy absorber in accordance with the design shown on Figs.

Figa represents the energy absorber with an adjusting element in accordance with the following exemplary embodiment of the present invention.

Figv is the following image of the cross section of the energy absorber Figa.

Figs is the corresponding characteristic stress/displacement" of the energy absorber in accordance with the design is the tion, depicted on Figa, 10V.

Fig.10D is the quencher energy Figa with powered adjustment elements.

File is the corresponding characteristic stress/displacement" of the energy absorber in accordance with the design shown on Fig.10D.

Figa represents the energy absorber with powered adjustment items in accordance with the following exemplary embodiment of the present invention.

Figv is the corresponding characteristic stress/displacement" of the energy absorber in accordance with the design shown on Figa.

Figs is the following energy absorber with powered adjustment items in accordance with the following exemplary embodiment of the present invention.

Fig.11D is the characteristic stress/displacement" of the energy absorber in accordance with the design shown on Figs.

In the following description of the drawings the same reference signs are used for similar or identical elements.

The image on the drawings are schematic, without reference to the scale.

Figa is a schematic cross-section of the energy absorber in accordance with the exemplary embodiment of the present invention. The energy absorber 100 includes the lower the actu housing 101 and the upper part of the housing 102, between which the anchor member repayment of energy.

The energy absorber 100, which has this element of repayment of energy 1 essentially consists of a so-called separate tiers of the many plates or sheets placed on each other and called composite layers with two or more leaves are opposite each other (which, in turn, can contain multiple sheets placed on each other).

So, multiple sheets can be nested into each other, for example, to optimize the load on the covering layer, more efficient use of space or alignment of increased load.

In addition, the energy absorber 100 includes a rigid support 103 for repayment of power 1 and power fasteners 105-112, 115.

Figv represents an image of a damper energy Figa, rotated by 90. The upper part of the hull or double plate 102 has a hole 113 for fastening, for example to the frame of the aircraft. Item repayment of energy 1 has a hole 114 for attachment, for example to plot the on-Board unit of the aircraft. If the force acts on the body in the direction of arrow 116, and an element of repayment of power 1 in the opposite direction 117, then the element of redemption, through plastic deformation, is extended from the housing when exceeding the known mini is social efforts. Thus, energy is extinguished.

Absorption also occurs in the opposite direction, namely, when the element of repayment of energy 1 is pressed into the housing. The first power nodes from 105 to 112 and 115 are, on the one hand, to the connection pads 101, 102, and to distribute the resulting efforts (shown power line arrows 118 and 119, 120).

The design presented in figure 1 shows the basic variant of a single-layer performance. Furthermore, the element of maturity energy 1 is sandwiched between the plates 101, 102 and undergoes transformation when reaching the efforts of the operation.

Figa, 2B are schematic cross-sections of the energy absorber in accordance with the following exemplary embodiment of the present invention. This design basically follows the design shown in figure 1. Due to the presence of slits in the sheet 1 and the division of the body (102, 101) intermediate partitions 202 compound compartments, the force can be effectively reduced or evenly distributed. The reference position 201 indicates a cut in the sheet, which is located intermediate partition 202.

Figa, 3B represent the image of the next energy absorber in accordance with the following exemplary embodiment of the present invention in two cross sections. This design can be considered as works is the one on the principle of independent deformation. In this case, however, only one element of repayment of energy 1 can undergo deformation, thus, this construction applies to single. The sheet passes zigzag through a system of rollers 301, 302, 303, 304, 305, 306, 307. The design of the rollers may provide their rotation, to minimise the effects of friction.

Figa, 4B represent the energy absorber in accordance with the following exemplary embodiment of the present invention, which relates to a "two-tier" structure.

In this case, the first element of repayment of energy 1 is pressed from one side to the pad 102. The second presents an element of repayment of energy 3 is pressed with the other hand to the base plate 101. The elements of maturity of power 1, 3 are subjected to deformation when reaching efforts positives and pulled together with each other.

Figa, 5B represent the energy absorber in accordance with the following exemplary embodiment of the present invention. This design is made according to the design principle shown in figure 4. By placing two or more sheets 1, 2, or 3, 4 design can withstand a higher level of effort. For example, can absorb large loads. At the same time, the design of more efficient use of the space, and different spaced sheets contribute to the favorable force distribution on the pads 11, 102 using existing in this case, two power lines 118.

Figa, 6B, 6C are following the implementation of the energy absorber. In this case, accordingly, two (or more) of the sheet placed on each other(1, 2; 3, 4; 5, 6 or 7, 8). In addition, different groups lining sheets are placed respectively above each other. A pair of sheets 1, 2 are clamped so that they can move by rolling with a couple of sheets 3, 4, and a pair of sheets 5, 6 are clamped so that they can move by rolling with a couple of sheets 7, 8.

Constructive space in this case is used very efficiently. Numerous leaves, lying on each other in their structure the role of the covering sheets, and, thus, can reduce the force acting on the pads 101, 102.

In addition, due to the adjacent location of these sheets, the thickness of the energy absorber 100 (i.e. placing the two plates 101, 102), when the characteristic of the permanent force, can be reduced. This allows the ability to build energy absorber, for example in the form of a laminated plate, which, in turn, decrease the body.

Figa, 7B represent the energy absorber in accordance with the following exemplary embodiment of the present invention. This design is characterized by fine design. In this case, the individual elements of the maturity of energy , 2, 3, 4, 9, 10 are connected to each other via a Central tie strap 701. Razorabotannye leaves can promote favorable force distribution on the pads 101, 102 through three power line 1181, 1182, 1183, existing in this case.

Figa-9D represent the energy absorber with an adjusting element in accordance with the following exemplary embodiment of the present invention.

Characterization effort can be adjusted continuously changing the position of the adjustment plate. Such regulation can be used in single-stage and two - or multi-tiered structures.

The adjusting device consists of a first adjusting element 801, the second adjusting element 802 and the adjustment plate 803, the location of which can be changed by actuating both of the adjusting elements 801, 802.

The actuation of the adjusting elements 801, 802 adjusting plate 803 may be moved so that the element of repayment of energy 1 is compressed more or less strongly.

The designs presented in Figa, 8B, may be provided with a uniform, substantially constant characteristic stress/displacement", shown in Figs.

In the situation presented on Fig.8D (where the adjusting elements 801, 802 b is more strongly screwed, so the adjustment plate 803 stronger compresses the element of energy absorption 1)may be characteristic stress/displacement", shown in Fig.8D (at a higher level than Pigs).

In the situation presented on Figa, where the adjustment plate 803 is inclined, can be provided with the characteristic shown in Figv. In this case, after overcoming the minimal effort force characteristic variable, several waning pull the plate 1. Conversely, the power characteristic increases as the retraction of the plate.

The adjustment plate 803 may also be of various shapes, for example with the influx or thickening of the 808, which leads, in addition, additional bending of the sheet 1 in the area 809, thus altering the characteristics of the force/displacement".

In the design presented on Figs, provided the inverse power dependence (see Fig.9D), in which pulling the sheet 1 effort is perceived, therefore, increases (and Vice versa).

Figa-11D represent the two-tiered system with adjusting elements 801, 802, 805, 806, and the adjusting plates 803, 807.

Power characteristics for structures Figa, 10V presented on Figs. In this case, the power characteristic constant pulling or drawing sheet 1, 3.

If re is lirovidnye elements 801, 802, 805, 806 screwed (see Fig.10D), provides enhanced power characteristics (see File).

If the adjusting elements are screwed stronger, in a special way, as shown on Figa provides power characteristic, decreasing by pulling (see Figv).

In contrast to the design Figa, if the adjusting elements are screwed, as shown in Figs, pull the plates 1, 2 is the growing power characteristic (see Fig.11D).

Instead of bolts for the position of the adjusting elements can also be used rods of hydraulic, eccentric washers or adjusting the drive (see Figa and 11C).

Thus, the level of effort damping can be adjusted to the same very quickly and/or automated for each individual case.

Of course, it is possible to use other materials, such as flexible, deformable plastic or other flexible, deformable material/ combination of materials.

Presents the energy absorber can also be used as an absorber of energy in the so-called connecting rods. Other possible applications may be, for example, the following.

The energy absorber in the connecting rods system overhead bins. Special effect is the transfer of force h is bogdanich brackets on the Luggage racks, situated ahead, and this is the potential redundancy of this principle hold. Essentially, these principles can be applied in cases where you must force the accession of the tight-fit (determined kinematically).

The energy absorber to the chassis.

The damper energy drive systems.

The energy absorber in the steering joints for large ailerons and rudders.

The damper energy for the seats.

The damper energy for stowage.

Embedding energy dampers in the attachment points of the power elements.

The energy dampers for the APU, in particular for attaching the APU (Auxiliary Power unit").

The damper energy for cubicles or aircraft restraint nets.

The level of effort may vary by changing the configuration of the energy absorber, bend radius and material properties. In addition, the level of effort is adjusted by changing the location of the adjustment plates. There is a constant frictional connection. The system may be susceptible to external conditions. In addition, the system may not be susceptible to diagonal tension (that is diagonal with respect to, for example, the arrow on Figa), which may occur when the destruction of the deformation of the frame. This may be a relative offset is their items/parts and as a result, the deviation in the direction of extrusion.

1. The device controlling the level of effort of the energy absorber (100) for an aircraft, comprising:
the housing (101; 102);
the first adjusting element (801);
adjustment plate (803);
moreover, the energy absorber contains an element of repayment of energy (1) energy absorption acceleration through plastic deformation;
plastic deformation of an element of repayment of energy (1; 2) occurs within a housing (101; 102); and
in which the first adjusting element (801) bend radius item repayment of energy (1) in the housing is smoothly adjustable;
moreover, the adjustment plate (803) by actuation of the first adjusting element (801) moves in the direction of an element of repayment of energy (1) so that an element of repayment of energy (1) moves along the contact surface of the adjusting plate (803).

2. The device according to claim 1, additionally containing a second adjusting element (802) to move the adjusting plate (803); and the second adjusting element (802) is driven independently from the first adjusting element (801).

3. The device according to claim 1, in which the adjusting plate (803) has a contact surface shaped element repayment of energy (1) is bent in the area of surface contact when the introduction in action of the second adjusting element (802).

4. The device according to claim 1, additionally containing the second element of the repayment of energy (2); and housing (101; 102) includes a first cover plate (101), a second plate (102) and a rigid support (103; 104) for the second element of repayment of energy (2) and the first element of repayment of energy (1).

5. The device according to claim 1, in which the first element of repayment of energy (1) has a longitudinal section (201); and housing (101; 102) further comprises an intermediate wall (202), which is mounted in the cut.

6. The device according to claim 1, additionally containing:
the first section of accession (113);
the second section of the connection (114);
the first area connection (113) is designed for attaching the energy absorber (100) to the frame of the aircraft; and
the second section of the connection (114) is designed for attaching the energy absorber (100) to the onboard device.

7. The device according to claim 1, in which the mounting bracket to the frame or the onboard device is carried out by means of screws, rivets or locking pins.

8. The device according to claim 1, wherein the energy absorber has a direction of energy absorption; and in which, after exceeding the minimum effort, acting in the direction of repayment of energy, energy absorption occurs through the energy absorber.



 

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1 dwg

FIELD: transport engineering; car protective devices.

SUBSTANCE: invention relates to device aimed at protecting cars in case of collisions, and it can used in form and rear bumpers of cars, microbuses and other vehicles. Buffer is divided into central and side sections, the latter being turned backwards at preset angle, and it includes bumper and energy-absorbing devices connected to bumper and arranged uniformly lengthwise at a distance from each other. Two central energy-absorbing devices of buffer, being mirror reflection of each other, are installed adjoining each other. Each energy-absorbing device includes definite number of adjoining energy-absorbing members, each being mirror reflection of adjacent one, is made integral from cut of round metal rod and it includes base, jumper and brace, all arranged in relatively perpendicular planes. Bases of energy-absorbing members are connected to outer surface of bumper, jumpers of energy-absorbing members are arranged coaxially for interaction with outer surface of bumper. Bases and braces and braces of energy-absorbing members are arranged horizontally, and jumpers, vertically. Each energy-absorbing device is provided with leaf springs and movable base plate, braces of all energy-absorbing devices of left-hand and, accordingly, right-hand halves of buffer are pointed to different sides at preset angle in directions from middle to edges of bumper. Buffer includes outer sheath provided with metal strip sections connected to its inner surface which guarantees regulated destruction of sheath in preset places. Invention provides protection at high energy-absorbing capacity and stability of shock-absorbing characteristics of car at collision with obstacle or other car.

EFFECT: improved protection of cars.

3 cl, 9 dwg

FIELD: transport engineering; car protective devices.

SUBSTANCE: invention relates to devices aimed at protection of cars in case of collisions and it can be used to protect side surfaces of cars, microbuses and other vehicles together with front and rear bumpers. Proposed buffer contains two protective sections arranged at one level with bumpers, each being connected to car body load-carrying members and provided with support surface in form of U-shaped section, and energy-absorbing devices connected to U-shaped section being uniformly arranged over its length at a distance from each other. Each energy-absorbing device includes definite number of adjoining energy-absorbing members, each being mirror reflection of adjacent one, made integral from cut of round metal rod and includes base, jumper and brace located in relatively perpendicular planes. Bases of energy-absorbing members are connected to outer surface of U-shaped section. Jumpers of energy-absorbing members are arranged coaxially and they interact with outer surface of section. Bases and braces of energy-absorbing members are arranged horizontally, and jumpers, vertically. Each energy-absorbing device is furnished with movable base plate made integral with leaf spring. Braces of all energy-absorbing devices of buffer sections are tilted at preset angle, respectively, in direction from front to rear bumper. Each section of buffer includes also foamed shock-absorbing material units placed in spaces between adjacent energy-absorbing devices, and outer sheath connected to bent off parts of U-shaped section and it can be additionally provided with safety strip connected to its outer surface. Invention provides protection of car body side surface at collision with obstacle to other car. It provides high energy-absorbing capacity and stability of shock-absorbing characteristics of car.

EFFECT: improved protection of cars.

3 cl, 7 dwg

Damper // 2245469

FIELD: mechanical engineering.

SUBSTANCE: damper comprises flexible members and bearing plates assembled in a structure with interference. The flexible members are made of a system of flexible half-rings and flexible damper interposed between the bearing plates and clamped with at least one guiding column and threaded joint, which allows the value of interference and rigidity of the damper to be adjusted. The ends of the flexible half-rings abut against the bearing plates. The cylindrical surface of the half-rings faces toward the interior of the damper and abut against the flexible damper.

EFFECT: enhanced damping capabilities.

13 cl, 7 dwg

FIELD: rail vehicles and different industries.

SUBSTANCE: proposed device contains energy absorbing part, movable and stationary support plates. Energy absorbing part can be made up of metal plate members, thickness from 2 to 10 mm, extreme ones being secured on support plates with flat section and camber section and forming cellular structure in section consisting of great number of hexahedrons in section by planes passing through vector of external resultant force with provision of impact energy absorbing owing to flexural strains in metal plate members mainly on chamber sections. Energy absorbing part can contain great number of cells, each formed by two flat metal plates, thickness from 2 to 10 mm, arranged square to external force vector, and two metal plates, thickness from 2 to 10 mm, placed in between, with initial camber in direction square to vector of external force and thrusting against middle of flat metal plates of adjacent cells. Extreme metal plates are secured to support plates with provision of absorption of impact energy owing to flexible strains of metal plates in places of maximum camber and flexural strains of flat metal plates in places of butt-joining of metal plates. Energy absorbing part can be made in form of cellular structure consisting of great number of rectangles made up of metal plate members, thickness from 2 to 10 mm, extreme ones being secured on support plates. Some metal plate members coincide with direction of external force and thrust against middle of metal plate members of adjacent cells arranged square to vector of external force with provision of impact energy absorbing owing to flexural strains in units of intersection of metal plate members. Device provides absorption of impact energy of the order of 0.5-2.5 MJ.

EFFECT: provision of effective absorption if impact energy at relatively uniform overloads to which passengers are subjected.

4 cl, 3 dwg

Ring damper // 2259504

FIELD: mechanical engineering.

SUBSTANCE: ring damper comprises flexible cylindrical rings secured to the housing. The housing is made of panel whose face grooves receive cylindrical rings fitted with interference so that the projecting parts of the flexible cylindrical rings from both sides of the panel define flexible bearing arcs of the damper which are in a contact with the surfaces of the object to be damped and bearing surfaces of the vehicle or construction structure, or foundation. The heights of the flexible bearing arcs are controlled by means of flexible semirings that are set with interference in the space between the flexible bearing arcs of the flexible cylindrical rings and panel surfaces. The peripheral planks secured to the panel prevent the flexible cylindrical rings and flexible semirings against falling out of the face grooves.

EFFECT: improved and simplified structure and expanded functional capabilities.

15 cl, 12 dwg

FIELD: transport engineering; trucks.

SUBSTANCE: proposed energy-absorbing buffer of truck relates to collision protective means of vehicles and it can be used in front and rear bumpers of trucks, buses and other vehicles of different types. Buffer connected to front of rear bumper is arranged lower than bumper and includes energy-absorbing devices united into sections arranged at a distance from each other. Energy-absorbing devices in each section are butt-joined and connected to each other. Each energy absorbing device consists of two energy-absorbing members, being mirror-like relative to each other, made integral of tubular blank cut and including bases, bridges and main and additional struts located in relatively perpendicular planes. Bases of energy-absorbing members are connected to outer surface of bumper, bridges of energy-absorbing members are arranged coaxially relative to each other, some engaging with outer surface of bumper, and others, with support plate. Each energy-absorbing device is furnished with leaf-springs and members made of elastic material arranged around additional struts which are united in each section by C-shaped section. Invention prevents getting of passenger car under truck frame, thus providing passive safety. It is reusable device featuring high energy-absorbing properties and stability of shock-absorbing characteristics which can be set within wide ranges. It has simple design and reduced aerodynamic drag which provides economy of fuel.

EFFECT: improved safety, reduced aerodynamic drag and fuel consumption.

3 cl, 7 dwg

FIELD: mechanical engineering; seismic protection.

SUBSTANCE: proposed device contains deformable plastic member. Said member is made in form of frame made of channel elements connected, with flanges outwards, with formation of upper and lower support planes furnished with fastening units arranged on opposite sides of each plane. Fastening units are provided with cone-like elements, for instance, cone-like washers adjoining support plane and orientated towards each other by narrow part.

Fastening units of one support plane are displaced relative to fastening units of other plane through 90°.

EFFECT: protection of equipment from seismic shocks of 15-20 g and higher in any direction.

2 dwg

FIELD: transport engineering; automobile protection means.

SUBSTANCE: proposed bumper connected to load-bearing structure of automobile includes two sections arranged at a distance from each other and energy-absorbing device adjoining each other. Each energy-absorbing device consists of two interconnected energy-absorbing members, each being mirror image of the other and made as integral part from cut of round metal bar including base, additional base, near, additional and far bridges interconnected by main and additional braces and located in relatively perpendicular planes. Bases of energy-absorbing members are arranged vertically and connected to support surface, bridges of energy-absorbing members are arranged horizontally coaxially relative to each other, main and additional braces of energy-absorbing members of each section are arranged lower than support surface being inter connected by rigid plates. Each section of bumper is provided with guard made up of interconnected vertical and horizontal tubular members connected to additional bases of energy-absorbing devices and shock-absorbing devices connected to tubular members of guard and load-bearing structure of automobile and made integral of two leaf springs. Bumper includes outer sheathing with thinning sections to provide order destruction in preset places and elastic resilient members in form of cylinders connected to tubular members of guard.

EFFECT: simplified design, provision of high energy-absorbing properties and stability of shock absorbing, possibility of repeated use of structure.

3 cl; 6 dwg

FIELD: mechanical engineering.

SUBSTANCE: shock-absorbing device comprises housing made of a closed chamber filled with deformable members. The deformable members are made of hollow unclosed members whose strength is less or equal to that of the housing and glass hollow microscopic spheres. The inner spaces of the closed chamber and hollow members are filler with the glass hollow microscopic spheres.

EFFECT: enhanced efficiency.

1 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to collision protective devices and it can be used as front and rear bumpers of different passenger cars, minibuses and other vehicles. proposed buffer to be connected to bearing structure of car has common outer sheathing and central and side sections whose support surfaces are connected to each other through connecting energy-absorbing devices with leaf springs. Main energy-absorbing devices are connected to support surfaces of sections being uniformly spaced and including definite number of interconnected absorbing mirror-like members. Each energy-absorbing member is made integral from section of round metal bar and provided with base, bridge and brace arranged in relatively perpendicular planes. Braces of main energy-absorbing devices are arranged horizontally, being connected to plates of movable bases made integral with leaf springs. Braces of main energy-absorbing devices of left-hand and right-hand parts of buffer are pointed to different sides, respectively, in directions from middle to edges of buffer. Buffer is furnished additionally with energy-absorbing devices made in similar manner, connected to bearing structure of car and interacting through braces with rear surface of corresponding side section of buffer.

EFFECT: high energy absorbing capacity and stability of shock absorbing characteristics with possibility of repeated use.

3 cl, 8 dwg

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