41 results about "Energy impact" patented technology

An entropy-function-based motion planning method for a welding device. The method comprises: by means of energy-consumption parameter indicators, constructing energy influence factors of a gantry shaft, a horizontal shaft and a robot body shaft; on the basis of the energy influence factors, constructing corresponding energy entropy functions; constructing an initial motion planning path; on the basis of the running process of the initial motion planning path, calculating a time entropy, and then in combination with a gantry-shaft energy entropy function, a horizontal-shaft energy entropy function and a robot-body energy entropy function, calculating a motion entropy of a single welding operation motion process; and for the calculated motion entropy, adjusting entropy influence factor coefficients of the gantry shaft, the horizontal shaft and the robot body shaft on the basis of a certain step size, and re-planning a motion planning path and calculating a motion entropy. The minimum energy consumption and the optimal operation during welding are achieved, and the high efficiency welding and the minimum energy consumption of welding by a device are achieved. Further provided are an entropy-function-based motion planning system for a welding device, and a computer device and a computer-readable storage medium.

This invention discloses a welding stud punching mechanism, comprising a main disc and a secondary disc, which rotate synchronously in opposite directions. The workpiece is detachably mounted on the main disc. A protrusion is located on the annular side surface of the secondary disc. The protrusion and the workpiece rotate on the same horizontal plane, with the protrusion's movement trajectory forming a first circle and the workpiece's movement trajectory forming a second circle. An intersection area is provided between the first and second circles. The mechanism includes a limiting block, a piston block, and an interference component. The piston block reciprocates vertically, the limiting block reciprocates horizontally, and the interference component transfers the kinetic energy of the piston block to the limiting block. The beneficial effects of this invention are that it changes the existing stamping method; the main and secondary discs punch holes at the workpiece ends through extrusion, reducing energy impact and effectively reducing vibration and noise. The piston block adjusts the distance between the limiting block and the intersection area, thus accommodating workpieces of different lengths. The left and right chucks allow for clamping workpieces of different diameters, improving compatibility.

The utility model provides a kind of light-emitting circuit, comprising: light-emitting component, switch component and buffer component, light-emitting component can emit light, light-emitting component is at least provided with two, multiple light-emitting components are connected in parallel;Switch component is arranged between light-emitting component and driving power supply, for selectively control one or more light-emitting components and driving power supply between the loop established;Buffer component is arranged at light-emitting component, for when the loop established by light-emitting component and driving power supply is cut off, absorbing the energy released by driving power supply to the light-emitting component.The utility model discloses light-emitting circuit, it is provided with buffer component, can absorb the energy, avoid light-emitting component directly bears above-mentioned energy impact, also avoid light-emitting component from the flicker phenomenon of this energy, guarantee the stability, reliability of light-emitting component, also greatly prolong the service life of light-emitting component.The utility model also provides a kind of lamp.

The invention discloses defective NH2-Ni-MOF as well as a preparation method and application thereof, and belongs to the field of piezoelectric electro-catalytic hydrogen production. The method comprises the following steps: firstly, synthesizing a precursor NH2-Ni-MOF through a solvothermal method, putting the NH2-Ni-MOF material and a grinding ball into a ball mill together by a seller, and grinding to obtain defective NH2-Ni-MOF; and the grinding ball is a mixture of five large balls with the diameter of 10 mm and fifteen small balls with the diameter of 5 mm. The D3-NH2-Ni-MOF prepared by mixing and grinding the grinding balls in a specific proportion realizes the synergistic effect of high-energy impact and high-frequency grinding, and successfully introduces lattice defects with the maximum concentration. The defect structure can effectively promote separation and migration of photon-generated carriers and enhance the piezoelectric polarization effect of the material under the ultrasonic action, so that the piezoelectric synergistic photocatalytic performance is remarkably improved. Under the combined action of sun illumination and ultrasonic vibration, the D3-NH2-Ni-MOF catalyst is dispersed in a methanol aqueous solution, and efficient and stable water decomposition hydrogen production activity can be achieved.

The invention relates to a device for dissipating energy in the event of a crash-related energy impact on a commercial vehicle. The invention further relates to a commercial vehicle with such a device. The device (6) comprises a deformation device (10) which can be deformed in the event of a crash, thereby dissipating impact forces, as well as a first receiving element (20) and a second receiving element (20) for fastening the deformation device (10) to the two longitudinal frame members (3) of the commercial vehicle (1). The deformation device (10) is connected to the first receiving element (20) at a first end region (10a) and to the second receiving element (20) at an opposite second end region (10b). The first receiving element (20) and the second receiving element (20) are designed such that the first receiving element (20) and the second receiving element can each be fastened to one of the longitudinal frame members.Furthermore, the deformation device (10) and the first and second receiving elements (20) are designed such that, when the receiving elements (10) are each fastened to the frame longitudinal members (3), the deformation device (10) extends above and transversely to the frame longitudinal members (3). The deformation device can have one or more tubular crash struts (11). The deformation device (10) arranged in this way offers, in particular, protection for a component arranged between the frame longitudinal members, e.g., a high-voltage component, in the event of a crash-related collision of the commercial vehicle with a trailer traveling ahead.

The present application relates to the field of shield machine testing equipment, specifically is a kind of shield machine component performance testing equipment, including the base frame of L-shaped structure, the horizontal section of base frame is slidably connected with support plate left and right, its vertical section is rotatably connected with U-shaped frame, U-shaped frame and support plate are provided with pseudo mechanism for impacting and wearing test of cutter on it, limiting mechanism for limiting cutter is arranged on U-shaped frame, the rotating cylinder of the present application is intermittently driven by driving assembly, drives the impact ball at the end of swing rod to rise to set height, by the way of accumulating gravitational potential energy and converting into kinetic energy, impact ball violently impacts cutter surface in the form of free swing, this process highly simulates the instantaneous, high-energy impact working condition of falling stone on cutter blade circle in tunneling, effectively reveals the real damage mode of micro-crack, collapse or structural failure caused by impact load to cutter, significantly improves the pseudo of impact test.

The invention discloses a prefabricated horizontal member joint construction structure and a construction method thereof, and relates to the technical field of building member connecting structures. According to the method, a throwing-out anchor bar and a connecting steel bar do not need to be reserved, the construction operation difficulty is reduced, and the quality problem caused by inaccurate positioning is avoided; a steel plate wrapping edge is arranged on the outer side of prefabricated concrete, the rigidity of the steel plate wrapping edge is increased, the steel plate wrapping edge is consistent with steel beam deformation, a left side prefabricated concrete plate and a structural steel beam are in an inserted connection relation to form a sliding support, and during shaking, the left side prefabricated concrete plate moves outwards to buffer structural shaking energy impact and cope with structural collapse caused by earthquake deformation; the joint design is reasonable, the strength, the rigidity and the stability are improved, and meanwhile the plastic deformation space is enlarged.

The invention discloses a method and system for measuring recovery resistance of a carbon ceramic resistor after transient energy action. The measuring system comprises a controllable high-voltage direct-current charging power supply, a transient energy impact discharging power supply, the carbon ceramic resistor, a control power supply, a carbon ceramic resistor transient energy and recovery resistance measuring unit and a computer measurement and control management unit. An energy storage capacitor C in the transient energy impact discharge power supply is charged through the controllable high-voltage direct-current charging power supply, transient injection of set voltage / energy of the carbon ceramic resistor is achieved, and the temperature and distribution of the carbon ceramic resistor are obtained through the transient energy measuring unit; the recovery resistance of the carbon ceramic resistor after transient energy injection is obtained through the recovery resistance measuring unit, the rule that the conduction chain of the carbon ceramic resistor changes along with the temperature after transient energy injection is disclosed, and a theoretical basis and a data support are provided for optimization of a material formula and a manufacturing process of the carbon ceramic resistor.

The invention discloses a CFRP low-energy impact damage multi-scale analysis method, which belongs to the field of CFRP laminated plate damage analysis, and comprises the following steps: constructing a microscale unit cell model, introducing a periodic boundary condition, endowing a material with a main direction, predicting the equivalent elastic property of a unit cell, and constructing a macroscopic homogeneous laminated plate model based on the equivalent elastic property. A three-dimensional Hashin failure criterion and a bilinear cohesion model are introduced into the homogeneous model, low-energy impact simulation is carried out, and mechanical response and damage morphology in the impact process are simulated. The reliability of the evaluation method is verified by comparing a simulation result with an experimental result. According to the method, the damage behavior of the CFRP laminated plate under low-energy impact can be effectively simulated, and a reliable technical means is provided for damage evaluation and design optimization of a composite material structure.

The invention discloses an intelligent energy complementing system integrating battery grouping management and self-balancing control, which belongs to the technical field of vehicle wireless energy complementing and energy management, and comprises a self-balancing power module, a wireless charging receiving module, a grouping battery system, an auxiliary support device and an intelligent energy complementing controller, according to the invention, the grouped battery system is divided into the working battery pack and the energy storage battery pack through a battery grouping management mechanism, and the wireless charging receiving module charges the battery pack only when the self-balancing power module is in a power-off state, so that the risk of generating power-off impact or reverse electromotive force on the control moment gyroscope is avoided; safety decoupling of the energy complementing process and the self-balancing control process is achieved, the wireless energy complementing safety and the system reliability are improved, meanwhile, the energy impact and degradation risk of the battery system under the high-risk working condition is reduced, and the method is suitable for the two-wheeled vehicle with the self-balancing function and related intelligent mobile equipment.

The utility model relates to a prestress type graded energy-absorbing anti-beam-falling device which comprises an inhaul cable assembly, one end of the inhaul cable assembly is sequentially sleeved with a first anchor bearing plate, a multi-step energy absorber and a nut from inside to outside, and the other end of the inhaul cable assembly is sequentially sleeved with a second anchor bearing plate, a prestress type buffering energy-absorbing device and a wedge-shaped nut. The multi-step energy absorber is a reducing cylinder with a center hole, and a plurality of annular grooves are formed in the outer side face of the multi-step energy absorber to form a step type appearance. The prestress type buffering energy-absorbing device comprises an energy-absorbing buffering assembly, a pre-pressing type spring and a prestress stirrup, the energy-absorbing buffering assembly comprises an energy-absorbing elastic body and a pre-bending spring steel sheet assembly, and the pre-bending spring steel sheet assembly is composed of a bottom plate and a plurality of pre-bending spring steel sheets. The device adopts a multi-step type energy absorption structure and is provided with a prestress type buffer energy absorption device, when a large earthquake occurs, energy generated by the earthquake to the beam body can be absorbed step by step and released in a graded energy dissipation mode, and therefore the anti-falling beam body is protected against energy impact caused by instant bearing of huge earthquake waves.

The hydraulic compaction device comprises an equipment base and a stand column, the stand column is fixedly installed on the top end surface of the equipment base, a hydraulic rod is installed on the top end surface of the stand column, a connecting plate is installed at the extending end of the hydraulic rod, and an assembling shell is installed on the outer side surface of the stand column; according to the invention, the compaction rod with threads is ingeniously designed to integrate the functions of impact compaction and rotary drilling, and is matched with the assembly shell driven by the hydraulic rod and the rotating mechanism driven by the speed reducing motor, so that efficient and flexible drilling can be performed on a foundation on the same set of equipment; the composite reinforcing effect of rotary pore-forming compaction and then high-energy impact compaction is achieved, so that the defect that in the prior art, when high-energy vertical impact compaction needs to be conducted on backfill materials so as to further improve the pile body strength and the inter-pile soil compactness, independent heavy hammer compaction equipment needs to be replaced is overcome; the construction process is tedious, and the whole construction period is prolonged.

The invention discloses a method and a system for measuring dynamic resistance and recovery resistance of a carbon ceramic resistor under the action of transient energy. The measuring system comprises an adjustable direct-current high-voltage charging unit, a transient energy impact discharging unit, a carbon ceramic resistor, a control unit, a carbon ceramic resistor transient energy, dynamic resistance and recovery resistance measuring unit and a computer measurement and control management unit. Injection of different transient energy of the carbon ceramic resistor is realized by regulating and controlling the controllable direct-current high-voltage charging power supply; the transient energy amp is passed; the dynamic resistance measuring unit measures the voltage at the two ends of the carbon ceramic resistor and the flowing current. The computer measurement and control management unit obtains the relation between transient energy and the thermal state minimum dynamic resistance of the carbon ceramic resistor through the processing and analysis of voltage and waveform data. And the relationship between the recovery resistance of the carbon ceramic resistor and the temperature drop change after transient energy injection is determined, so that a theoretical basis and data support are provided for optimization of a carbon ceramic resistor material formula and a manufacturing process.

The utility model relates to an aero-engine pipeline support, which comprises an inner layer support, a comb tooth structure, the comb tooth structure comprising a plurality of comb teeth located in the same plane, and an outer layer support having a tooth groove on the side facing the inner layer support, which is matched with the comb teeth. The comb teeth are adapted to be embedded in the tooth groove to form an integrated structure with the inner layer support and the outer layer support. The material hardness of the outer layer support is greater than that of the inner layer support. The aero-engine pipeline support can effectively absorb the vibration load of the aero-engine and improve the impact resistance under high-energy impact load.

This invention relates to the field of engineering machinery safety technology, specifically disclosing a load stability prediction system for telescopic boom forklifts based on the force exerted by the boom. The system collects motion sensing data and stress wave sensing data at the boom hinge; calculates a cross-spectral coherence function based on the motion data to generate a hinge coherence disorder index; performs time-frequency transformation on the stress wave data and automatically identifies energy impact patches, extracting their peak energy, center frequency, and duration; and generates a transient collision intensity spectrum index based on sensitive frequency band mapping and aggregation; constructs a time-series comprehensive feature vector from the two indices, inputs it into a pre-trained multi-layer gated recurrent unit structure for nonlinear dynamic system identification, and outputs a fused stability assessment state quantity; maps this state quantity to a virtual potential energy surface for multi-step forward extrapolation, calculates the dynamic stability margin value, and issues an early warning when the margin is lower than an adaptive threshold; this invention achieves early and accurate prediction of nonlinear jump instability.

The utility model discloses a plate-type resistor which comprises a resistor body, the resistor body comprises a plurality of layers of alloy plates which are coaxially arranged, the alloy plates are detachable, the distance between every two adjacent layers of alloy plates is adjustable, each layer of alloy plate is provided with a ceramic ring and a conducting ring, the ceramic rings serve as insulation structures between the layers of alloy plates and are used for separating the plurality of alloy plates, and the conducting rings are used for conducting the plurality of alloy plates. The conducting rings serve as electrical connection structures between the alloy plates and are used for communicating the alloy plates. According to the plate-type resistor disclosed by the utility model, the alloy plates with a multi-layer structure are adopted, the number, the layer distance and the arrangement mode of the alloy plates can be adjusted according to actual pre-charging conditions so as to adapt to working conditions of different energy grades, the suitability is improved, and meanwhile, the whole resistor participates in the energy absorption process as the multi-layer alloy plates are used as the resistor, so that the energy absorption efficiency is improved. And the mass of the alloy plate is relatively large, and the mass of the resistor body formed by the alloy plate is also relatively large, so that the high-energy impact resistance is relatively high.

The present disclosure relates to an energy dissipation device and system, comprising a hollow cylinder adapted to be filled with solid balls, and a longitudinal member / shaft having short rods protruding radially therefrom. The shaft having rods is movably disposed of within the hollow member and solid balls are filled and secured in the cylinder thereafter, such that two ends of the longitudinal member extend outside of the hollow member, and the rods and solid balls remain within the hollow cylinder. The ends of the device may be configured with structures or equipment. The movement of the shaft along a longitudinal axis of the cylinder, upon receiving an energy impact in an event of seismic activity, wind loads, and / or man-made vibrations, results in friction between the solid balls and the rods of the shaft, which facilitates dissipation of the received energy.

The utility model discloses a drop hammer assembly and a drop hammer impact testing machine, and relates to the technical field of drop hammer impact testing machines, the drop hammer assembly comprises an upper panel, a hammer body plate, a hammer head, a side panel, a limiting rod, a balancing weight and a lifting block, the hammer body plate is located below the upper panel, the hammer head is connected to the bottom of the hammer body plate, and the side panel is located below the side panel. The side panel is detachably connected with the upper panel and the hammer body plate, the limiting rod is detachably connected to the hammer body plate and located between the upper panel and the hammer body plate, the balancing weight is placed on the hammer body plate, the balancing weight is provided with a limiting groove, the limiting rod is matched with the limiting groove, the locking piece is connected with the limiting rod, and the bottom of the locking piece abuts against the balancing weight to lock the balancing weight. The lifting block is configured to be detachably connected to the top of the upper panel or detachably connected to the top of the hammer body plate, the weight of the drop hammer assembly can be adjusted by adjusting the balancing weight, and the drop hammer assembly has two combined states and can be switched between a high-energy impact state and a low-energy impact state.

This invention discloses a test device and method for the impact performance of an engine conical wall structure, belonging to the technical field of aero-engine structural strength testing. The device includes: a hammer for generating a falling impact; a transition assembly for an interference fit connection with the front end of the conical wall structure; a bracket for a fixed connection with the rear end of the conical wall structure; a protective assembly positioned along the hammer's descent path and on the side of the conical wall structure to catch the hammer after the conical wall structure fractures; and a protective box positioned directly below the conical wall structure to receive the failed falling conical wall structure. The method includes static load calibration and dynamic impact testing steps. This invention can meet the requirements for both split and integrated installation of conical wall structures, achieving a stable connection and dual safety protection under high-energy impacts. It can simultaneously complete static load calibration and dynamic impact integrated testing, ensuring safe and reliable testing.

A method for the efficient solubilization of carbon dioxide in water using high-energy impacts is described. The method may optionally include mixing carbon dioxide and water to form an annular dispersed flow, accelerating both fluids before collision, and providing a retention net to collect the carbonated water flow. Systems and apparatus for implementing this method are also described.

The invention relates to a battery module, a battery system and electric equipment, and relates to the technical field of batteries, the battery module comprises a shell, a top liquid cooling plate and a bottom liquid cooling plate, the liquid cooling plates are connected to two sides of the shell respectively, the liquid cooling plates and the shell jointly define a containing cavity, and inner cavities of the top liquid cooling plate and the bottom liquid cooling plate are both communicated with the containing cavity; and enabling the plurality of battery cells to be in an immersed liquid cooling environment. The battery cell is arranged in the containing cavity and provided with a weak end, the weak end is arranged towards the bottom liquid cooling plate, and the bottom liquid cooling plate forms an avoiding part at the corresponding position. When the thermal runaway of the battery cell occurs, the weak end is broken through under the driving of the internal pressure, and the discharged object enters the pressure relief cavity on the battery system box body through the avoiding part, so that the directional discharge is realized. According to the structure, thermal runaway gas is discharged along a preset path by limiting the breaking direction of the battery cells, so that high-energy impact on the liquid cooling plate and the adjacent battery cells is reduced, and the safety and the structural reliability of the immersed liquid cooling module under extreme working conditions are improved.

The invention discloses an efficient energy absorption and shock wave attenuation protection structure based on a chain A framework, and relates to the field of protection structures and impact energy absorption, in particular to the efficient energy absorption and shock wave attenuation protection structure based on the chain A framework. The problems that a traditional rigid armor cannot be attached to human joints, the motion freedom degree is limited, energy absorption of a soft material is insufficient under high-speed impact, and the damage risk of a bionic material is high under low-energy impact are solved. The panel is composed of a panel body and a chain A type array. The chain A type array is composed of a plurality of chain A type grillwork units, and the chain A type grillwork units are connected through interlocking points. And the panel covers the impact incident side of the chain A type array. The invention is applied to the field of armor protection.

The invention discloses a power supply system for wind power yaw motor control, particularly relates to the field of wind power yaw motor power supply control, and is used for solving the stability problem of servo shutdown triggered by bus voltage drop and energy impact when a plurality of motors are synchronously started. The isolation converter pre-charges and stores energy to construct a flexible bus, then adaptively regulates and controls a current limiting slope by using a starting stability coefficient trained by a voltage drop rate and a peak width duration, and dynamically awakens a motor in a segmented manner; the energy is recharged to synchronously supplement the energy storage capacitor and stabilize the follow-up voltage fluctuation, and the terminal feeds the regenerated energy to the low-voltage load in the cabin according to the priority and resets the threshold value; the closed cycle of energy storage, impact reduction and complementary energy utilization is completed in one wind direction switching period in the whole process, so that the bus voltage drop is maintained in a safety window, the driving shutdown risk is remarkably reduced, the yaw response time is shortened, the tower fatigue peak value is reduced, meanwhile, the regeneration energy utilization rate is increased, and the heat dissipation pressure is relieved.

A multifunctional dynamic load impact test platform based on spring energy storage and drop hammer energy supply relates to the technical field of impact performance detection equipment and comprises a double-drop-hammer high-energy impact mechanism, an external support protection frame and a mobile assembly mechanism. The double-drop-hammer high-energy impact mechanism comprises a guide supporting polished rod, a high-strength spring energy storage mechanism, a double-drop-hammer impact mechanism and a sample fixing mechanism, the movable assembly mechanism is installed behind the external supporting protection frame, the bridge type supporting frame is a parallel bridge type platform formed by assembling square stand columns and cross beams, and bottom base plates are laid at the bottoms of the stand columns and fixed to the ground; a symmetrical structure formed by the double drop hammers can realize a shear impact simulation test; the supporting and protecting frame is erected outside the double-drop-hammer high-energy impact mechanism; the movable assembling mechanism is used for assembling test mechanism components before the impact test is completed, and the test platform can flexibly adapt to the impact performance test from small test pieces to large-size components, covers samples of different shapes and materials, and simulates impact responses under various complex working conditions.

This invention relates to the field of breakwater technology and discloses a composite floating breakwater using concrete and bamboo wave-dissipating structures. The invention features multiple guide elements at the bottom of the pontoon, arranged obliquely from low to high along the direction of the ocean current. This creates a gradually rising stepped or sloping structure extending from the rear end to the front end of the current. This arrangement allows the current to be naturally guided upwards or along the slope when passing through the guide structure, thus dispersing it and generating effective flow-around effects such as vortices and backflows. This helps to disperse the energy of the current over a wider area, reducing the energy impacting the breakwater, extending its service life, and reducing damage and maintenance costs caused by current impacts.

The invention relates to the technical field of photovoltaic recovery, and discloses a non-destructive photovoltaic module separation method and system, and the method comprises the steps: cleaning a glass surface of a photovoltaic module, and dismounting a junction box and a frame, and obtaining a photovoltaic laminated part; for the photovoltaic laminated piece with a fluorine-containing back plate, one side of the glass surface of the photovoltaic laminated piece faces the xenon lamp irradiation module, the xenon lamp irradiation module is adopted to irradiate the photovoltaic laminated piece for the first time, and the back plate of the photovoltaic laminated piece and the EVA adhesive film and the copper-tin soldering strip adjacent to the back plate are stripped; a xenon lamp irradiation module is adopted to irradiate the photovoltaic laminated piece with the back plate stripped off for the second time, the cohesiveness of the EVA adhesive film adjacent to the glass is damaged, and a light shock wave is utilized to enable the battery piece to be separated; stripping the EVA adhesive film adjacent to the glass layer, and recycling the clean glass; the technical problems that a fluorine-containing back plate is prone to being decomposed due to high-energy impact due to fixed single irradiation, and the follow-up stripping difficulty is increased due to back plate breakage are solved.

The application discloses a melting method of an ultralow micro-bubble quartz crucible, which comprises the following steps: obtaining spherical synthetic quartz sand with a preset particle size range; stacking the quartz sand into a gradient accumulation structure with gradually decreasing particle size from the bottom layer to the inner surface, and fixing the quartz sand through centrifugal force and electrostatic adsorption; starting an electrode arc; entering a low-speed heating stage to remove adsorbed gas; entering a transparent layer melting stage, using the power provided by the first power surge to provide energy impact, so that the fine particles on the inner surface are rapidly melted and spread to form a uniform liquid film; entering a high-temperature maintaining stage, using the power provided by the second power surge to promote the interface fusion of quartz particles; entering a continuous heat preservation stage, and suddenly reducing the power to make the melt begin to cool down under controlled conditions; stopping melting and protecting the gas flow, demolding, cooling to room temperature, and obtaining the ultralow micro-bubble quartz crucible. The method can effectively inhibit the density of micro-bubbles in the micro-transparent layer, improve the purity, density and smoothness of the inner surface of the crucible, and make the crucible have higher crystal yield.

The efficient forming guide roller for the paper machine comprises a shaft body and a roller body, a cavity is formed in the middle of the interior of the shaft body, a connecting rod is fixedly connected between the two inner side walls of the cavity, a plurality of damping blocks are fixedly connected to the outer wall of the periphery of the connecting rod, arc-shaped plates are fixedly connected to the top ends of the damping blocks, and the arc-shaped plates are fixedly connected to the roller body. Springs are fixedly connected between the arc-shaped plates and the connecting rods, an aerogel heat insulation groove is formed in the position, close to the outer end of the cavity, in the roller body, couplings are fixedly connected to the positions, close to the two sides of the roller body, of the shaft wall of the shaft body, and a glue inlet pipe is embedded in one side of the inner wall of the aerogel heat insulation groove. According to the guide roller, the situation that the shaft body is damaged due to the fact that energy impact is large when the guide roller operates is avoided, the phenomenon that the guide roller is locally abraded and deformed is reduced, and the paper forming quality is improved.

The application discloses a new energy receiving capacity evaluation method and system for frequency safety caused by voltage drop, and the voltage drop degree of new energy and the voltage drop degree of load are calculated, and then the system short-time energy impact caused by voltage drop, that is, the active power change of new energy and the active power change of load, is evaluated; the maximum kinetic energy change amount allowed by the system is combined; the current power flow mode is evaluated as the minimum starting mode and the maximum receiving capacity, so that the new energy receiving capacity evaluation method for the system short-time power impact scene caused by voltage drop is realized, and the research on the new energy receiving capacity evaluation under the frequency safety and stability constraint is further improved.

The invention discloses a shock absorption performance testing device for a shock absorber, and belongs to the technical field of shock absorption testing, the shock absorption performance testing device comprises a testing mechanism used for testing the shock resistance and shock resistance of the shock absorber, and the testing mechanism is provided with a mounting mechanism used for mounting the shock absorber and a recording mechanism used for recording the shock condition of the shock absorber; in a vibration test, continuous and irregular bumping excitation on a real road surface is simulated through irregular and staggered bulges on the vibration wheel, and in an impact test, an instant and high-energy impact load is simulated through cooperation of a semi-eccentric wheel and a strong spring. The two excitation modes can more truly reflect the mechanical environment faced by the shock absorber in actual use, in addition, the shock absorber is simulated into an actual installation state in a test, namely the bottom is jacked up, the top is fixed, and the stress form of the shock absorber is consistent with the working state, so that the effectiveness and the reliability of test data are ensured.