190 results about "Energy absorbing" patented technology

The invention discloses a composite protective structure resistant to blast shock which is mainly a point truss honeycomb integral protective structure formed by a honeycomb tensile layer and a lattice truss-type compression resistance layer through welding spots and connecting keys, and a foam energy absorbing layer is added on the outer layer. According to the composite protective structure, theforce transmission path of a concrete protective structure under the action of blast is innovatively optimized, the resistance level of the protective structure can be greatly improved, and the structure ductility is improved; and the dispersion of concrete fragments in the structure can be restrained, and the phenomenon of blast and explosion-induced collapse of similar traditional concrete protective structures is eliminated.

The utility model relates to the technical field of expressway guardrails, in particular to an expressway anti-collision guardrail which comprises a fixed stand column, a movable stand column and an anti-collision device. The wave-shaped beam plates are continuously arranged along the edge of the road and are parallel to the fixed stand columns; and the horizontal connecting beam stretches across the corrugated beam plate and the fixed stand column, one end of the horizontal connecting beam is rotationally connected with the corrugated beam plate through a rotary connecting sleeve, and the other end of the horizontal connecting beam is rotationally connected with the fixed stand column through a buffer connecting sleeve. Through the arrangement of the rotary connecting sleeve and the buffer connecting sleeve, the wave-shaped beam plate can generate plastic deformation to absorb energy during collision and can also translate towards one side of the fixed stand column, and the translating motion drives the buffer connecting sleeve to rotate around the fixed stand column, so that the fixed limiting block sequentially collides with the limiting buffer plates; therefore, the energy absorption capability of the whole system is greatly enhanced.

A support plate and reinforcement member may be mounted within a hollow side sill between a rocker and crossmembers for a vehicle framework. The support plate may include flanges along either edge and a straight, projecting face between the flanges. The reinforcement member, mounted on the support plate proximate to an outer surface of the side sill, may include flanges along either edge and a wavy projecting face between the flanges. Contact portions of the projecting face for the reinforcement member may contact an interior of the side sill at regions aligned with where the side sill mounts to the crossmembers, with intervening portions of the projecting face, in areas adjacent energy absorbing crush cans, extending less far from the flanges. The intervening portions may also be laterally offset from the contact portions, to provide larger weld areas.

The invention discloses a landslide buffering and energy absorbing device based on a positive and negative Poisson's ratio alternating material, which comprises a protection plate I and a protection plate II which are oppositely arranged, and a positive and negative Poisson's ratio alternating layer is clamped between the protection plate I and the protection plate II; the positive and negative Poisson's ratio alternating layers comprise positive Poisson's ratio honeycomb layers and negative Poisson's ratio honeycomb layers which are alternately arranged in the transverse direction; the elastic modulus of the negative Poisson's ratio honeycomb layer material is not less than that of the positive Poisson's ratio honeycomb layer material; the positive Poisson's ratio honeycomb layer and the negative Poisson's ratio honeycomb layer are connected through a connecting rod layer, and the connecting rod layer is connected with the positive Poisson's ratio honeycomb layer and the negative Poisson's ratio honeycomb layer on the two sides in an attached mode. By reasonably arranging the positive and negative Poisson's ratio alternating layers, the problems of energy absorption and protection of the landslide blocking structure and insufficient rigidity of a single negative Poisson's ratio material are solved, and the blocking structure can be effectively reinforced by applying the positive and negative Poisson's ratio alternating layers to the head-on collision side of the landslide blocking structure.

Method for storing and / or transporting temperature-sensitive materials. In one embodiment, the method involves predicting whether a given passive thermal shipping system will maintain a payload within a desired temperature range over its entire transport / delivery route. To this end, thermal capacitance data is compiled for the shipping system at a plurality of temperatures spanning a broad range of potential ambient temperatures to which the shipping system may be exposed. In addition, forecasted ambient temperature data is obtained for a plurality of time intervals spanning the transport / delivery route. An effective ambient temperature, based on the forecasted ambient temperature, as well as rolling and cumulative averages, is then determined at each of the various time intervals. Using the effective ambient temperature, the thermal capacitance is determined from the compiled data and is compared to the cumulative absorbed energy. The shipping system fails when the cumulative absorbed energy exceeds the thermal capacitance.

The invention relates to a universal circuit breaker energy absorption device, and the device comprises a housing which is of a hollow structure; the moving contact mechanism comprises a supporting seat, and the lower end of the supporting seat is rotatably arranged at the bottom of the inner side of the shell; the energy absorption structure is made of a high-temperature-resistant viscoelastic material and is arranged at the front end of the inner side of the shell; when the universal circuit breaker is switched off, the supporting seat rotates around the rotating axis at the lower end to a switching-off position, the front end of the supporting seat is in collision contact with the energy absorption structure, the energy absorption structure is made of a high-temperature-resistant viscoelastic material, friction and lag deformation are generated after the energy absorption structure is stressed, kinetic energy is converted into heat energy, and the energy absorption structure is in contact with the energy absorption structure. The collision kinetic energy between the supporting seat and the inner side of the shell is reduced, so that the resilience force converted from the collision kinetic energy is reduced, the resilience distance is obviously reduced after the supporting seat collides with the shell, and the possibility of electric arc reignition is greatly reduced.

The invention discloses high-performance brittle-crack-resistant steel for nuclear power pressure-bearing equipment and a manufacturing method of the high-performance brittle-crack-resistant steel. The high-performance brittle-crack-resistant steel comprises the following chemical components: 0.16%-0.24% of C, 0.20%-0.40% of Si, 1.25%-1.60% of Mn, less than or equal to 0.010% of P, less than or equal to 0.005% of S, 0.25%-0.45% of Cr, 0.25%-0.40% of Cu, 0.30%-0.50% of Ni, 0.005%-0.008% of Ca, 0.65%-1.25% of Mo and 0.04%-0.08% of V. The manufacturing method comprises the steps of smelting, continuous casting, heating rolling and heat treatment. The thickness of the steel plate is 30-120 mm, and through hardening and tempering and simulated postweld heat treatment, the normal-temperature tensile yield strength is larger than or equal to 620 MPa, the tensile strength is larger than or equal to 770 MPa, the 360-DEG C high-temperature tensile yield strength is larger than or equal to 518 MPa, the tensile strength is larger than or equal to 618 MPa, the impact absorption energy at the temperature of-40 DEG C is 195 J or above, the non-ductility transition temperature is smaller than or equal to-52 DEG C, and the grain size is larger than or equal to 8.5 grades. The steel provided by the invention has good mechanical properties and brittle crack resistance, and fully meets the requirements of steel for pressure-bearing equipment of a nuclear power unit.

The invention relates to a lunar soil microwave heating effect evaluation method. The method comprises the following steps: establishing a microwave cavity model enclosed by a metal boundary; calculating electric field distribution of the lunar soil according to the magnetic conductivity and the complex dielectric constant of the lunar soil; a plurality of sampling bodies are arranged in the target area, and microwave energy absorbed by each sampling body is calculated according to electric field distribution of lunar soil; determining the specific heat capacity of the lunar soil along with the temperature change, and calculating the temperature change rate in each sampling body according to the microwave energy; calculating the standard deviation and the average value of the temperature change rates of all the sampling bodies, and obtaining a variable coefficient along with the temperature change; and when the temperature of the lunar soil is balanced, judging the microwave heating uniformity of the lunar soil according to the variable coefficient. In the process of analyzing the lunar soil microwave heating effect, starting from the first principle, the characteristic that the specific heat capacity of the lunar soil changes along with the temperature is considered, the physical reality that the lunar soil absorption energy changes along with the temperature in the process of converting the lunar soil absorption energy into the temperature is fitted, and the accuracy of lunar soil microwave heating effect analysis is improved.

Miniature lighting device characterized in that it consists of one or more elements made entirely or partially of phosphorescent material, wherein these elements absorb energy during exposure to natural or artificial light and release it again in the dark in the form of visible afterglow.

A lattice structure buffer energy absorption performance equivalent evaluation method for a pyrotechnic device, which is a lattice structure buffer energy absorption performance evaluation method using small sample multi-rate equivalent load application, comprehensively considers the influence of loading rate on the mechanical behavior of the lattice structure, calculates the lattice structure calculation model parameters under different conditions by presetting the loading rate, and then according to the lattice structure calculation model parameters, the current impact speed is calculated, based on the densification load and the maximum energy absorption characteristic parameters, and the calculation results are used to evaluate the buffer energy absorption performance of the lattice structure under the specified mass and speed impact.

The application provides a multi-source power disturbance rock burst combined supporting prevention and control system and method, relates to the rock burst disaster prevention and control technical field, and comprises a stress release hole, a wave absorbing grouting hole, an energy absorbing anchor rod and a passive pressure bearing structure; the stress release hole is arranged in a rock burst high risk area of tunnel surrounding rock; the wave absorbing grouting holes are arranged staggeredly around the rock burst high risk area, the wave absorbing grouting holes are filled with wave absorbing grouting materials, and a three-dimensional wave absorbing grouting area is formed; the energy absorbing anchor rod is arranged in the three-dimensional wave absorbing grouting area; the passive pressure bearing structure comprises a rapid setting concrete layer, a rubber particle containing concrete layer, a steel arch and a steel fiber concrete layer, the rubber particle containing concrete layer is arranged behind the steel mesh, the steel arch is arranged behind the rubber particle containing concrete layer, and the steel fiber concrete is arranged behind the steel arch. The four-level combined supporting system of pressure relief-wave absorbing-energy absorbing-passive pressure bearing is constructed, and the safety and adaptability of the supporting system of the rock burst high risk area are remarkably improved.

This invention relates to an aluminum composite panel with impact resistance and sound insulation properties, its preparation method, and its application. The invention incorporates sound insulation and impact-resistant materials into the core layer of the aluminum composite panel, avoiding potential interface defects or weak adhesion between the sound insulation and impact-resistant layers, simplifying the core layer structure, and improving the overall stability of the core layer material. The butyl rubber contained in the core layer can undergo elastic deformation under impact to absorb energy. The addition of stearic acid promotes the uniform dispersion of butyl rubber to improve its performance. The addition of graphite and vermiculite powder enhances the impact resistance and sound insulation properties of the composite panel. The added polystyrene foam has a porous structure, and together with the composite filler, it further strengthens the impact resistance and sound insulation effects. The components in the core layer synergistically improve the impact resistance and sound insulation properties of the aluminum composite panel.

The invention relates to a sacrificial composite part (1, 10, 100) that absorbs the energy released at the time of a vehicle collision with an impacting object (2), said part consisting of an assembly of a plurality of cells (3, 30, 300), each cell comprising a wall (5, 50, 500) connecting a first end (6, 60, 600) and a second end (7, 70, 700) of said cell, the direction of penetration (8) of the impacting object into said part going from said first end to said second end. Said sacrificial composite part of the invention is characterized in that that peripheral wall of each cell has a decreasing thickness (e) from said first end towards said second end of said cell, in the direction of penetration of the impacting object.

In the energy-absorbing member (10), a first plate section (41) and a pair of second plate sections (42, 42) constitute a base unit (20) having a U-shaped cross-section, the base unit (20) comprising a press-molded article. An inner surface (21) and an outer surface (22) of the basic unit (20) configured in the U-shaped cross-section are contours that do not have an undercut shape in a direction along a reference line (CL2). The first plate section (41) and the pair of second plate sections (42, 42) have imaginary parallelograms (90) that are offset about an axis (CL1) from a first end surface (51) to a second end surface (52) of the base unit (20). At least one of the two diagonal lines (91, 92) of the virtual parallelogram (90) is formed by a fold line.

The invention provides a corrugated compensator with an energy-absorbing and buffering assembly, which comprises a corrugated compensator body, a foaming assembly is arranged at one end of the leakage corrugated compensator body, and the leakage foaming assembly comprises an outer ring plate, an inner ring plate, an energy-absorbing and buffering assembly and an energy-absorbing and buffering assembly, the outer side of the upper inner ring plate is fixedly mounted on the lower side of the outer ring plate, and lower inner ring plates matched with the upper inner ring plate are symmetrically and fixedly mounted on the lower side of the upper inner ring plate; and the foaming piece is arranged on the front side of the corrugated compensator body, the leakage foaming piece comprises a shell installed on the lower side of the upper inner ring plate, an inner cavity is formed in the leakage shell, and a foaming layer used for generating a foam material is arranged in the leakage inner cavity. The leaked liquid flows into a collecting cavity in the bottom plate under the action of gravity. When accumulated liquid makes contact with the isolation layer, the isolation layer can be dissolved, raw materials stored on the two sides are promoted to be mixed and have a chemical reaction, foam is generated and fills a gap between a pipeline and the compensator body, and blocking is achieved.

The utility model relates to the technical field of traffic facility engineering, in particular to an energy-absorbing end head structure, which comprises a support mechanism, a plurality of frames and two connecting rods, the connecting rods are connected among the frames, and the two connecting rods are respectively connected to the bottoms of two sides of the frames; the guardrail mechanism comprises a corrugated plate arranged on one side of the frame and an end plate connected with the corrugated plate. The energy absorption mechanism comprises a guide pipe penetrating through the interiors of the frames and an energy absorption pipe arranged in the guide pipe in a sleeving mode and close to the end, a plurality of notches in the same extending direction as the guide pipe are formed in the end, facing the end, of the guide pipe, and the energy absorption pipe is arranged in the direction facing the end plate; the inclined strut mechanism comprises an inclined rod connected between the side, away from the end, of the guide pipe and the ground, and a fixing column connecting the other end of the inclined rod to the ground. The fixing mechanism comprises a base connected with the connecting rod and a stand column which is connected with the base and extends into the ground. And through the multi-stage energy absorption and stable structure design, the collision impact force is effectively relieved, and the safety and impact resistance of the end area are improved.

A multi-stage honeycomb vibration reduction and energy absorption device with vibration resistance and multi-directional impact resistance relates to the technical field of vibration reduction and comprises a metal shell, a pored hard rubber structure is arranged in the metal shell, a corrugated honeycomb structure is arranged in the pored hard rubber structure, and the corrugated honeycomb structure is formed by uniformly arranging a plurality of honeycomb cells in a common-edge manner; the honeycomb cell is formed by stacking and cementing a plurality of layers of small corrugated honeycomb cells, each small corrugated honeycomb cell comprises six corrugated thin plates, and the six corrugated thin plates are interwoven to form an outer framework of each small corrugated honeycomb cell. The perforated hard rubber structure has good damping performance and transverse impact bearing capacity, impact energy can be effectively dispersed and absorbed, and internal parts are protected. The corrugated honeycomb structure improves the transverse bearing capacity and can cope with external impact in any direction and angle, energy is effectively absorbed, and damage is reduced.

The utility model relates to the technical field of glass fiber reinforced plastic composite pipes, in particular to a shock-resistant and pressure-resistant glass fiber reinforced plastic composite pipe which comprises a lining layer, a core mold arranged on the outer wall of the lining layer, a buffer layer arranged on the outer wall of the core mold, a plurality of triangular grooves formed in the buffer layer, and a transition layer arranged on the outer wall of each triangular groove. A structural layer is arranged on the outer wall of the transition layer, and a plurality of honeycomb grooves are formed in the structural layer. By utilizing the characteristics of the triangular grooves and the honeycomb grooves, energy can be dispersed and absorbed through the unique geometrical shapes of the triangular grooves and the honeycomb grooves, so that the influence of vibration on the structure is reduced, the anti-seismic property is improved, the honeycomb structure is very high in strength in the thickness direction, and due to the existence of an air layer in the structure, the weight is relatively light; therefore, shock resistance and compression resistance of the glass fiber reinforced plastic composite pipe are improved, and damage caused by external impact is prevented.

The utility model belongs to the technical field of excavating equipment, and particularly relates to an excavator bucket tooth, which comprises a bucket tooth mounting part, a connecting part and a connecting part, an inserting block matched with the inserting groove is arranged at the tail end of the bucket tooth main body; the energy absorption part is arranged in the bucket tooth main body and is used for absorbing impact received in the action process of the bucket tooth; the guide part is arranged on the surface of the bucket tooth main body and is used for guiding materials to move; wherein the inserting block and the inserting groove are both provided with screw holes, the bucket tooth body is connected to the bucket tooth installation portion through matching of the inserting block and the inserting groove and fixed to the bucket tooth installation portion through matching of the screw rods and the screw holes, and compared with the prior art, the service life of the excavator bucket tooth is effectively prolonged, and operation loads are reduced.

A crash cushion for absorbing energy when impacted by a vehicle includes a number of supports, a number of energy absorbing modules, a front anchor structure, a rear anchor structure, and a pair of elongated rails extending from the front anchor structure to each of the plurality of supports and to the rear anchor. Each of the energy absorbing modules includes first and second longitudinally extending plates positioned between a pair of the support plates and a first laterally extending plate positioned between and attached to the first and second longitudinally extending plates. The first and second longitudinally extending plates and the first laterally extending plate each have a hinge section about which they compress or stretch to absorb impact forces.

The embodiment of the utility model provides a front-end energy absorption structure and a vehicle with the front-end energy absorption structure, and the front-end energy absorption structure is used for the vehicle and comprises a front anti-collision beam assembly, a rear anti-collision beam assembly and a rear anti-collision beam assembly, the front longitudinal beam extends in the front-back direction, and the front end of the front longitudinal beam is connected with the rear end of the front anti-collision beam assembly; the upper edge beam is an integrated piece and extends in the front-back direction, the upper edge beam is located on the side, facing the outside of the vehicle, of the front longitudinal beam, the rear end of the upper edge beam is located above the front longitudinal beam, the front end of the upper edge beam is connected with the rear end of the front anti-collision beam assembly and the front end of the front longitudinal beam, and the rear end of the upper edge beam is connected to a lower A column of the vehicle. According to the front-end energy absorption structure, the reliability and stability of the front-end energy absorption structure can be improved, the force transmission path is optimized, it is guaranteed that the front anti-collision beam assembly is completely crushed, extrusion of a passenger compartment is relieved, the assembling time can be shortened, the assembling cost can be reduced, and light weight is facilitated.

The utility model discloses a excimer laser energy absorption device and optical shutter with reflecting device, and the outer sleeve one end opening constitutes the laser entrance window for laser incidence, and the inner chamber cavity wall of outer sleeve is conical platform and constitutes the first reflection surface of can reflect laser, and the outer sleeve is equipped with the reflection cone of conical body, and the second reflection surface is constituted to the reflection cone outer peripheral surface, and the vertex of reflection cone points to laser entrance window. The utility model discloses still a kind of optical shutter using the absorption device, and laser entrance, first laser exit and second laser exit are equipped on the shell, and laser entrance is communicated with second laser exit, and the shell is rotatably connected with mirror assembly, when mirror assembly is in second position, laser is emitted from first laser exit, when mirror assembly is in first position, laser is emitted from second laser exit to excimer laser energy absorption device after being reflected by mirror assembly. The utility model absorption device absorption is good, and optical shutter can realize higher industrial production efficiency.

The invention provides a finite element numerical simulation method based on photo-thermal lens spectrum insulating oil furfural detection, and relates to the field of numerical analysis of an insulating oil detection technology. The method comprises the following steps: constructing a geometric model comprising insulating oil containing trace furfural, an optical window and a detection plane to obtain a pump beam and a probe beam; the refractive index in the pump beam propagation process is solved; presetting extinction coefficients corresponding to the furfural with different concentrations, and obtaining photothermal effect data of the multi-concentration furfural; calculating the temperature distribution after the insulating oil absorbs energy, and describing the change relation of the refractive index along with the temperature through a thermo-optical coefficient; insulating oil temperature distribution and pump beam propagation characteristics in a steady state are obtained; solving the thermal stress of the insulating oil to the optical window sheet under the excitation of the pumping light beam; non-isothermal flowing and fluid-solid coupling behaviors of the insulating oil under the thermal lens effect are simulated, and fluid solving is carried out; the influence of the thermal lens effect on probe beam propagation is solved; and light spot distribution of the detection probe light beam is obtained.

The utility model relates to the technical field of composite aluminum plates, in particular to a composite aluminum plate with a reinforcing mechanism, a plurality of empty grooves are formed in the inner side of a fixing frame, cushion blocks are arranged at the bottoms of the empty grooves, a fixing block is arranged in the middle of the upper end of a base plate body, a plurality of reinforcing plates are arranged on the peripheral side of the fixing block, clamping grooves are formed in the cushion blocks, and the reinforcing plates are arranged in the clamping grooves. Clamping blocks inserted into the clamping grooves are arranged at the outer ends of the reinforcing plates, and through a reinforcing structure composed of the fixing blocks, the reinforcing plates and the tough plates, when the composite aluminum plate is subjected to bending force, all the components cooperate to disperse stress. The tough plate made of the glass fiber material resists deformation while absorbing energy, the reinforcing plate made of the aluminum alloy material provides rigid support, and the tough plate and the reinforcing plate are matched with each other, so that the bending resistance of the composite aluminum plate is greatly improved. When the composite aluminum plate is used as a curtain wall material, the influence of deformation on building beauty can be effectively avoided, the service life of the composite aluminum plate is prolonged, and the maintenance cost is reduced.

An energy absorbing structure of a vehicle includes an energy absorbing structure including a plurality of interconnected structural members positioned at the vehicle. The energy absorbing structure is selectably transformable between a stowed position and a deployed position, and the plurality of interconnected structural members are configured to absorb an energy of an impact event by one or more of deformation and fracture of at least one structural member of the plurality of interconnected structural members.

The invention relates to the technical field of intelligent manufacturing, in particular to an intelligent optimization system for an aluminum alloy blank forming process. Comprising a workpiece initial state sensing unit used for collecting geometric data and spectral reflection data of an aluminum alloy blank and generating a processability index; the curing energy demand prediction unit is used for generating personalized total curing energy in combination with the processability index generated by the workpiece initial state sensing unit and preset reference curing energy; the absorbed energy tracking unit is used for comparing the personalized total curing energy generated by the curing energy demand prediction unit and generating real-time energy deviation; and the heat flow power correction control unit is used for correcting the heating power of the curing oven in response to the real-time energy deviation generated by the absorbed energy tracking unit. The problem that the curing effect is not uniform due to the difference of the initial states of the blanks is solved, and the consistency and reliability of the coating quality of a final product are improved.

The invention provides a fingernail integrated system for monitoring cardiovascular health of a human body, which is characterized in that firstly, a photoelectric detector device performs matching between energy bands to construct a built-in electric field through different energy band structures of materials, when light irradiates a light active layer, electron absorption energy jumps to a conduction band to generate electron-hole pairs, and the energy of the conduction band of an electron transport layer is relatively low, so that the electron-hole pairs are generated; electrons flow to the electron transport layer and are conducted away by the electrode, and holes left in a valence band flow to the hole transport layer and are conducted away by the electrode, so that the device can generate current under the condition of not applying voltage, which indicates that the photoelectric detector can operate under the condition of low power consumption; meanwhile, due to the vertical structure and the self-powered characteristic of the photoelectric detector, the area of the device can be greatly reduced, a patterned electrode can be designed, the size of the electrode can be freely adjusted, and therefore personalized and miniaturized electrode preparation is achieved.