185 results about "Mechanical energy" patented technology

This invention discloses a vibration-damping pile foundation for offshore wind power equipment installation, relating to the field of wind power equipment technology. The invention includes a platform base, with a stabilizing column installed at the bottom and a reinforcing column installed at the top. A base column is positioned at the top of the reinforcing column, and a connecting assembly is positioned at the bottom of the base column. Through the cooperation of the structural damper in the connecting assembly and the telescopic column and piston rod in the damping assembly, this invention can adaptively adjust the buffering direction when the pile foundation is subjected to multi-directional vibrations, significantly improving the response accuracy and reliability of the vibration damping system. Through the synergistic action of the turbine blades, shaft, gear set, and generator in the kinetic energy transmission assembly, the hydraulic energy of the flowing oil is converted into mechanical energy and ultimately used for power generation and recovery, achieving efficient utilization of vibration energy. Simultaneously, the oil flow resistance and the generator electromagnetic resistance together constitute a damping effect, simultaneously enhancing the vibration damping effect during power generation, thus balancing structural stability and energy reuse.

The invention relates to the technical field of crossing of mechanical engineering and thermodynamics, in particular to novel intermittent piston equipment. The device is characterized by comprising a gas-liquid cylinder system, a piston system, a feeding system, a discharging system and a cooling system, wherein the gas-liquid cylinder system comprises a plurality of partition plates with holes and can further comprise a plurality of monitoring control assemblies, and the piston system comprises a plurality of piston push plates with holes and a plurality of piston driving mechanisms and can further comprise a plurality of monitoring control assemblies. The cooling system comprises a plurality of thermal contact modules, a plurality of heat transfer modules and a plurality of heat dissipation terminals, and can further comprise a plurality of monitoring control assemblies. A perforated partition plate, a perforated piston push plate and a monitoring control assembly are additionally arranged in an existing piston equipment technology, meanwhile, piston pushing and cooling system cooling integrated intermittent operation is adopted, the position of a piston and fluid pressure are monitored in real time, a driving signal is dynamically adjusted, and the working efficiency is improved. Efficient conversion between mechanical energy and gas pressure energy, hydraulic energy or fluid heat energy and precise control over the fluid temperature are achieved, the compression, expansion and mass transfer and heat transfer efficiency of fluid in equipment is greatly improved, the technical application scene is wide, and the technical application value is high.

The invention discloses a high-efficiency energy-saving motor, and belongs to the technical field of motors, the high-efficiency energy-saving motor comprises a casing and an operation mechanism arranged in the casing, and a main shaft penetrating through the inner walls of the two ends of the casing is arranged in the operation mechanism; the rotating mechanism is arranged on the two sides of the operating mechanism and comprises two bearings installed on the outer wall of the main shaft in a sleeving mode, two positioning rings are fixedly installed on the outer wall of the main shaft located between the two bearings, the positioning rings and the blades are arranged on the outer wall of the main shaft, and I-shaped wheels are rotatably installed in movable grooves of the outer rings of the blades and embedded into the rails; lateral stress borne by the bearing can be effectively dispersed, bearing dislocation is avoided, and the problem that friction force is increased due to dislocation is solved; meanwhile, a lubricating mechanism is arranged, a main channel on the inner wall of the main shaft is connected with branch channels among all parts, and under centrifugal fit during rotation of the main shaft, a bearing, an I-shaped wheel and the like can be continuously lubricated, the situation that friction force is increased due to lack of maintenance is reduced, then mechanical energy loss is reduced, heat generation is reduced, and energy conservation and consumption reduction are achieved.

The present application relates to the field of engineering machinery, and discloses a hydraulic walking system, a control method of the hydraulic walking system and a hydrostatic loader, the system comprising: a plunger pump, a front axle motor, a rear axle motor and a shunt collector valve; the plunger pump is used for forward movement or reverse movement based on hydraulic oil; the shunt collector valve is connected with the plunger pump and is used for adjusting the flow direction of the hydraulic oil, so that the hydraulic oil flows into the front axle motor and the rear axle motor in parallel or in series; the front axle motor and the rear axle motor are connected with the shunt collector valve and are used for converting the hydraulic energy of the hydraulic oil into mechanical energy. The present application can realize the forward and reverse rotation of the hydraulic walking and the series and parallel connection of the motor, flexibly adjust the flow direction of the hydraulic oil, thereby providing different walking speeds and tractive forces, so that the small hydrostatic loader can normally operate under different working conditions.

The utility model discloses a hard alloy cutting device, which belongs to the technical field of hard alloy and comprises a water tank, semi-closed guide plates are fixedly connected to the front end and the rear end of the right side of the top of the water tank, an alloy body is placed on the inner sides of the two semi-closed guide plates, and an electric telescopic rod is fixedly connected to the inner side of the water tank. One end of the electric telescopic rod is fixedly connected with a connecting column, and one end of the connecting column is fixedly connected with a connecting plate. The motor is started, electric energy is converted into mechanical energy through the motor, the cutting blade is driven to rotate, when the alloy body makes contact with the cutting blade, the alloy body is cut through the cutting blade, meanwhile, the water pump is started, water in the inner cavity of the water tank is sucked through the water pump, and the water is conveyed to the second pipeline; and water is conveyed to the spraying cover through the second pipeline, and is sprayed to the cutting position through the spraying cover, so that the cutting position is cooled, and the cutting quality is improved.

This invention relates to the field of robotics, and discloses a method and system for adaptive torque control of robot transmission components. The method includes: acquiring input electrical parameters and motion state parameters; determining energy characterization values ​​and mechanical energy changes; calculating the energy balance deviation between the energy characterization values ​​and mechanical energy changes; accumulating the energy balance deviation to obtain a cumulative deviation value; identifying the evolution characteristics of the cumulative deviation value to determine the current state of the actuator; and adjusting the output torque control parameters of the actuator based on the evolution characteristics only when the current state is determined to be an external load change state, to compensate for the influence of the external load on the actuator. This invention intelligently distinguishes between external load changes and internal vibration / dissipation by monitoring the "imbalance" of energy flow, and performs torque compensation only when an external load change is confirmed, thereby achieving more precise and robust adaptive control.

The utility model discloses an efficient sealing oil hydraulic cylinder, and relates to the technical field of oil hydraulic cylinders, the efficient sealing oil hydraulic cylinder comprises a cylinder body, a cylinder cover and a plug rod, the plug rod used for outputting mechanical energy is installed in the cylinder body, a piston head is installed on one side of the plug rod, and the cylinder cover is arranged at the joint of the plug rod and the cylinder body; a sealing structure is arranged at the communication position of the cylinder cover and the piston rod, a lower rubber layer is arranged at the contact position of the sealing device and the piston rod, an inner lip is arranged above the lower rubber layer, a supporting layer is arranged on the side, away from the piston head, of the inner lip, and an upper rubber layer is arranged below the cylinder cover. An outer lip connected with the supporting layer is arranged below the upper rubber layer, and an oil filling layer for buffering oil pressure is arranged between the inner lip and the outer lip. By means of double sealing of the inner lip and the outer lip and the design of the double-layer rubber ring, hydraulic oil leakage is effectively prevented, and the sealing performance is improved.

The invention provides a rail vehicle front end energy absorption protection system, which belongs to the technical field of rail vehicles, and is characterized in that various modules are integrated at the front end of a rail vehicle, a multi-source sensing module is started, and information such as front obstacles, vehicle vibration and rail magnetic field signals is collected; the intelligent control module performs cross validation on the multi-source signal, calculates a collision probability and estimated collision time, and outputs a corresponding collision level; during low-load collision, the bionic energy absorption unit is unlocked; during medium load collision, the electromagnetic hydraulic buffer and the particle damping module are started; during high-load collision, the anti-climbing device and the shape memory alloy restraint layer are overlapped and started; the energy recovery module converts hydraulic energy into mechanical energy. According to the front-end energy absorption protection system for the railway vehicle, different load requirements are met through graded energy absorption, the high-risk protection effect is enhanced through auxiliary protection, economical efficiency and practicability are improved through energy recovery and automatic reset, and the reliability of collision protection is remarkably improved.

The present application relates to a kind of multi-stage gravity potential energy driven water tunnel test device, belong to water tunnel test technical field.The multi-stage gravity potential energy driven water tunnel test device is divided into main drive flow channel and auxiliary energy release flow channel from the water body of high-level reservoir;Water body that flows through auxiliary energy release flow channel drives the mechanical energy generated by energy extraction mechanism, is transmitted to energy injection mechanism by transmission mechanism, and is converted into the propulsion work to the water body in main drive flow channel, to realize the gravity potential energy of auxiliary energy release flow channel water body is transferred and superimposed to the water body in main drive flow channel, finally from test pipeline obtains the flow velocity higher than single gravity potential energy driven can reach.The device by the gravity potential energy of auxiliary energy release flow channel water body is transferred and superimposed to main drive flow channel, additionally increases the kinetic energy for the water body in main drive flow channel, to make test pipeline obtain the flow velocity higher than only by single gravity potential energy driven can reach, overcome the flow velocity of traditional gravity type water tunnel limited bottleneck.

The utility model discloses a damping plate double-sided gluing device, which belongs to the technical field of damping plate production and comprises a base box and a dispensing head, vertical plates are fixedly connected to two sides of the top of the base box, a motor is fixedly mounted on the top of the base box and located on the outer side of the left vertical plate, and the output end of the motor is fixedly connected with a concave frame. The inner wall of the top of the concave frame is in threaded connection with a pressing plate, the bottom of the pressing plate is movably connected with a second bearing, the bottom of the second bearing is fixedly connected with a fastening bolt, and the concave frame on the inner side of the vertical plate on the right side of the top of the base box is movably connected with a first bearing through a rotating rod. Electric energy is converted into mechanical energy through the motor, the concave frame is driven to rotate, the damping plate is driven to rotate through the concave frame until the other face of the damping plate is turned over and then stops moving, the other face of the damping plate can be glued again, limiting of the damping plate does not need to be relieved, the damping plate can be turned over, and the production efficiency is improved. And the working efficiency is improved.

A horizontal axis rotational force generator is introduced, utilizing fluid flow to drive motion. The system includes one or more rotating mechanisms, each with multiple blades positioned at equal phase angle intervals. These blades revolve around a horizontal shaft while simultaneously rotating around parallel sub-shafts when exposed to fluid pressure, producing torque on the main shaft. A support structure holds the shaft and allows stable axial rotation at designated heights. A gear interlocking unit adjusts angular velocities, shifting blade revolution speeds to half their value in the opposite direction, and transfers the result to the main shaft. As blades pass vertically above the shaft, their orientation is controlled so that surfaces align horizontally or vertically relative to the shaft. This ensures blades consistently generate maximum rotational force on the horizontal plane, efficiently converting fluid flow into usable mechanical energy.

The invention relates to the technical field of part polishing, in particular to a precision mechanical part machining polishing machine which comprises a base and a rotating base arranged in the center of the base, and four clamping assemblies are connected to the outer side of the rotating base; the clamping assembly comprises a driving seat connected with the rotating base, and a left clamping plate and a right clamping plate which can move oppositely to clamp a workpiece are arranged on the driving seat. Through cooperation of the rotary base and the four-station design, continuous automatic production of feeding, polishing, detecting and discharging is achieved, and the production efficiency is improved; through the speed reduction transmission device structure, the polishing roller can be synchronously driven to rotate at a high speed and indirectly drive a workpiece to rotate at a low speed only through a single driving motor, efficient polishing is achieved through the rotating speed difference, the number of power sources is reduced, and the equipment manufacturing cost is reduced; through mechanical cooperation of the energy storage assembly and the arc-shaped sliding rail, mechanical energy in the polishing process is stored and released in the detection stage, and a workpiece is driven to rotate at a constant speed so as to complete high-quality detection.

The invention discloses a combined type self-adaptive variable-diameter supporting wheel mechanism for pipeline detection. The combined type self-adaptive variable-diameter supporting wheel mechanism comprises a base, an elastic assembly, a fork rod and an odometer wheel, the fork rod and the base are arranged in a relative sliding mode and connected through an elastic assembly. The odometer wheel is arranged at one end of the fork rod away from the base. A complex electric control system is abandoned, the pure mechanical passive self-adaption principle is adopted for the first time, the core driving force of the mechanism directly comes from interaction force between the inner wall of the pipeline and the supporting wheels, and through the spring which is a simple elastic element, the self-adaption function is achieved. The mechanical energy of pipe diameter change and obstacle impact is directly converted into the adaptability and obstacle crossing action of the mechanism, the crossing from the need of intelligent control to the natural mechanical intelligence is realized, the structure is fundamentally simplified, the control delay is eliminated, and the stability under severe working conditions is greatly improved.

The invention discloses a steam extraction and condensation type steam turbine stable in operation, and belongs to the field of steam turbines.The steam extraction and condensation type steam turbine stable in operation comprises a base, a bearing shell is fixedly connected to one side of the top of the base, a steam input pipe is fixedly connected to the top of the bearing shell, a bearing seat is fixedly connected to one side of the bearing shell, and a rotating shaft is rotationally connected to the interior of the bearing seat; a stabilizing assembly used for reducing vibration of the steam turbine is fixedly connected between the top of the base and the bearing shell and comprises a plurality of fixing columns fixedly connected into the stabilizing assembly at equal intervals. A pure mechanical stable assembly composed of a fixing column, a sliding balance weight sleeve, a damping ring and a spring is arranged and is in linkage with a rotating shaft or a bearing shell through a connecting arm, a reciprocating plate and the like, harmful vibration needing to be dissipated in a traditional design is converted into reciprocating mechanical energy capable of being utilized, an external power source or complex control is not needed, and the energy consumption is reduced. Therefore, the real-time and self-adaptive suppression of the vibration of the rotor can be realized.

The application discloses an intelligent load matching electro-hydrostatic actuator and a control method thereof. The device comprises a controller, a variable speed motor, a constant displacement pump, an oil supply module, an actuator module, and a liquid control check valve, an electric control throttle valve and a pressure sensor symmetrically arranged on two load oil paths. The core is that the controller can judge the working condition of the actuating cylinder in the forward load or reverse load according to the pressure signal difference detected by the two pressure sensors, and independently control the opening of the two electric control throttle valves. In the forward load working condition, the mechanical energy of the load is converted into the heat energy of the hydraulic oil to be discharged by adjusting the opening of the non-driving side throttle valve. The application effectively solves the problems of large volume and difficult heat dissipation of the controller caused by the built-in discharge resistor, reduces the volume and size of the controller of the electro-hydrostatic actuator, and realizes the miniaturization and intelligentization of the device.

A rotating electric machine (100) in an internal rotor design for converting mechanical energy into electrical energy or vice versa, comprising: - a stator (2), - a rotor (4) inside the machine (100) which is enclosed by the stator (2) and is or can be arranged non-rotatably on or attached to a rotatably mounted drive / output shaft (5) such that the drive / output shaft (5) including the rotor is rotatable about an axis of rotation R, and - a rotor cooling device designed to guide cooling medium along at least a part of the inner surface and / or through at least a part of the interior of the rotor (4) for heat dissipation mainly by thermal convection or to bring it close to the inner surface of the rotor (4) for heat dissipation by thermal radiation, wherein the drive / output shaft (5) has a free shaft end (5a) and the rotor (4) is or can be fitted onto the free shaft end (5a) and the rotor (4) is cup-shaped.wherein the rotor cooling device further comprises a stationary hollow cooling nozzle (3) extending in the direction of the rotational axis R of the rotor (4) from the open side of the cup-shaped rotor (4) into the interior of the cup and having, at its end (3a) facing away from the rotor (4), connected or connectable to a cooling medium source for supplying cooling medium, and having a cooling medium outlet (19) for discharging the cooling medium to the outside of the machine, wherein the end (3b) of the cooling nozzle (3) facing the rotor (4) is open and rib- or blade-like projections (7) and a vane (8) for forced cooling are located on the outside (3c) of the cooling nozzle (3).

A turbine unit (674) captures energy from a fluid flow (244). It includes at least one turbine (100) arranged along a turbine stack axis (454), each turbine (100) having a central portion (102) and blades (104) extending radially and rotating about the central portion (102). Each blade (104) includes at least one airfoil (116) movable between open and closed configurations; in the closed configuration, the airfoil forms a surface oblique to the fluid flow (244) to convert kinetic energy into rotation. A gearbox assembly (979) coupled to the turbine (100) converts rotation into mechanical power and includes an input shaft, gears responsive to a first control signal to vary gear ratio, and an output shaft. At least one sensor (983) generates operational data used by a control system (981). A fluid-flow control element (666) near the turbine (100) regulates fluid flow (244) in response to a second control signal.

The permanent magnets repel like poles and attract unlike poles to another permanent magnet, which is the inherent attribute of the permanent magnets, the generated attraction and repulsion force does not need to consume energy, and the permanent magnets can do work outwards. However, acting is single, and extra energy consumption is needed when the magnetic force is used for repeated acting after the magnetic force is separated. A shear separation scheme is designed to reduce energy consumption, continuously reciprocating attraction and repulsive force is obtained to serve as power of the device, mechanical energy is output outwards, and energy conservation of a shear separation system and energy conservation of magnetic force acting of the device are analyzed from the perspective of physics and belong to two systems respectively. Power of the magnetomotive device comes from magnetic force of a permanent magnet and is not directly related to system input energy, external output mechanical energy is far larger than the system input energy, technical prejudice is overcome, technical means abandoned by people due to the technical prejudice are adopted, and the magnetomotive device free of environmental pollution is invented to do work. The principle that the energy conservation law is not violated is explained through the mass energy conservation law, and a novel energy development scheme free of environmental pollution is provided.

This invention discloses a road vehicle kinetic energy recovery and power generation system, comprising a housing, a main shaft assembly, a load-bearing component, a generator, and a cover plate. The main shaft assembly includes a main shaft unit, with multiple main shaft units arranged in series. Each main shaft unit includes a unit base, a main shaft cover plate, a main shaft, and a one-way swing assembly. The main shaft is rotatably mounted on the unit base, and the main shaft cover plate is mounted on the unit base. The main shaft and the one-way swing assembly are circumferentially fixed. The load-bearing component is mounted on the main shaft cover plate and is displaced downwards under external loads, driving the one-way swing assembly to swing. The generator input shaft is connected to the output end of the main shaft assembly. The cover plate is mounted on the housing. This invention converts the excess kinetic energy generated by vehicle rolling and vibration into mechanical energy, which is then converted into electrical energy by the generator, achieving waste energy recovery and utilization, thus saving energy and protecting the environment. The components are compactly assembled, the structure is highly reliable, and it has good practical value and prospects for promotion.

The invention relates to the technical field of valves, in particular to a pressure recovery type overflow valve which comprises a valve shell, an oil inlet and an oil outlet are formed in the valve shell, and the oil outlet is communicated with a pressure recovery assembly; the pressure recovery assembly comprises a recovery cavity communicated with the oil outlet, a rotating element capable of being driven by pressure oil to rotate is rotationally installed in the recovery cavity, a plurality of blade tooth pieces capable of being pushed by the pressure oil are arranged on the rotating element, and the rotating element is synchronously connected with an output shaft. According to the overflow valve, the pressure recovery assembly is arranged, during pressure relief, high-pressure oil drives the rotating element to rotate and drives the output shaft to output mechanical energy, the mechanical energy can drive a generator or an auxiliary hydraulic pump or other devices, energy recycling is achieved, and the system energy efficiency is remarkably improved.

The intelligent windshield capable of being automatically adjusted according to the expressway crosswind strength comprises a baffle and supports fixed to the two sides of the baffle, supports are arranged at the tail ends of the lower sides of the two supports correspondingly, fixing rings are fixed to the front portions of the upper sides of the supports, and glass is fixed to the middle of the lower side of the baffle. And fixing bases are fixed to the middles of the upper end and the lower end of the position, where the glass is located, of the rear side of the baffle correspondingly, a sleeve is fixed to the middle of the upper side of the fixing base on the lower side, and a rotating shaft is movably connected to the middle of the lower side of the fixing base on the upper side. Wind energy is directly converted into mechanical energy for driving the adjusting plate to move transversely and is converted into rotating potential energy of the rotating shaft through gear and rack transmission, the problem that an existing intelligent windshield depends on power supply, a sensor and an electronic control system is solved, and the device can still work stably in outdoor severe environments such as highways and the like. And the maintenance cost and the failure rate are greatly reduced.

The utility model provides an efficient and energy-saving axial flow single-wing impeller, which relates to the technical field of axial flow single-wing impellers and comprises a hub, multi-angle blades, blade connecting plates, first blade connecting sections, second blade connecting sections and third blade connecting sections. The multi-angle blades are fixedly connected to the edge of the upper end of the hub in a 120-degree uniform distribution mode, the multi-angle blade bodies comprise the blade first connecting sections, the blade second connecting sections and the blade third connecting sections, the mounting angles of the blade first connecting sections, the blade second connecting sections and the blade third connecting sections are gradually increased, the design better adapts to the speed gradient change of axial flow fluid, the flowing track of the fluid is optimized, and the flow speed of the fluid is increased. According to the impeller, fluid forms a smooth flowing layer on the surfaces of the blades, generation of vortexes is reduced, energy consumption is reduced, mechanical energy can be more effectively converted into kinetic energy and pressure energy of the fluid through the acting force between the blades and the fluid, and therefore the energy conversion efficiency of the whole impeller is improved.

The utility model discloses a shock-absorbing transmission shaft for a lifting table, which relates to the technical field of transmission shafts and comprises a coupler body, a transmission shaft is inserted into one end of the coupler body and comprises a connecting shaft, an input shaft, an output shaft, a fixing block and a rubber pad I. Two ends of the connecting shaft are fixedly connected with a rubber pad II respectively. The fixing block is movably connected to one end of the connecting shaft, the input shaft is fixedly connected to the center of the outer wall of the fixing block, a telescopic groove is formed in the connecting shaft, a limiting sliding groove is formed in the outer wall of one end of the connecting shaft in a penetrating mode, and a movable rod is movably connected to the inner wall of the limiting sliding groove. When the lifting table vibrates in the lifting process or due to external factors, the first rubber pad and the second rubber pad in the transmission shaft can deform, mechanical energy of vibration is converted into elastic potential energy, vibration transmission is reduced, and transmission of the lifting table is more stable.

The check valve belongs to the technical field of valves and comprises a valve body, the outer side of the valve body communicates with a water inlet pipeline and a water outlet pipeline, a damping mechanism is arranged in the valve body, a valve clack is hinged to the interior of the valve body through the damping mechanism, and the valve clack covers one end of the water inlet pipeline; a support is fixedly installed at the position, located at the water inlet end of the water outlet pipeline, in the valve body, two sets of fan blades are rotationally connected to the two sides of the support correspondingly, and fixing rings are installed in the valve body and the water outlet pipeline. Fluid impacts the multiple sets of fan blades to enable the fan blades to rotate under the action of the fluid, kinetic energy of the fluid is converted into mechanical energy for rotation of the fan blades, force unloading is effectively conducted on the fluid, meanwhile, the fluid is dispersed to be close to the fixing ring under the action of the fan blades, the multiple sets of balls are driven to rotate in the fixing ring, fluid energy is further dispersed, and the energy efficiency is improved. The impact of fluid backflow on the valve clack, the valve body and the water outlet pipeline is reduced, the safety and the stability during operation are facilitated, and the service life of the device is prolonged.

The invention relates to a sand vibration isolation foundation of a medium-high speed engine test bed, and belongs to the field of engine test bed foundations. The device sequentially comprises a concrete cushion layer, a concrete shell foundation, a sand vibration isolation layer, a balancing weight, a sizing block and a cast iron bottom plate. A brick mold and an outer waterproof layer are arranged on the outer side of the concrete shell foundation, an inner waterproof layer is arranged on the inner side of the concrete shell foundation, trenches are formed between the two sides of the balancing weight and the concrete shell foundation, a steel cover plate is arranged above the trenches, and a slope is made at the bottom of the trenches to facilitate liquid collection; the sand vibration isolation layer is further provided with a composite geomembrane and a steel mold, and liquid on the upper portion is isolated from permeating into the sand vibration isolation layer. Vibration mechanical energy transmitted from the upper portion is converted into heat energy to be dissipated by arranging the sand vibration isolation layer, vibration wave energy penetrating through the sand layer is reduced, compared with a common engine test bed foundation vibration isolation method, the excavation depth is reduced, the comprehensive manufacturing cost is reduced, the overhaul frequency is reduced or overhaul is avoided, and the construction cost is reduced. And meanwhile, the method can be adapted to a rack vibration isolation foundation form for transforming a built engine rack foundation to the maximum extent.

This invention discloses a power supply system and method for auxiliary equipment inside a smart tire, relating to the field of vehicle auxiliary equipment power supply technology. The system includes a housing, a piezoelectric energy harvesting component, an energy management module, and a backup power supply. The housing contains upper and lower limit positions that are radially opposite to each other along the smart tire, and the piezoelectric energy harvesting structure is located within the limit gap. During the non-grounded phase of the smart tire, centrifugal force causes the piezoelectric structure to press against the lower limit position and store elastic potential energy. During the grounded phase, the equivalent centripetal acceleration decreases, causing it to release and rebound, generating electricity. The generated AC power is converted by a rectifier module and then stored and preferentially utilized by the energy management module. When the self-powered supply is insufficient, it automatically switches to the backup power supply. By efficiently capturing grounding impact energy and combining it with hybrid power supply management, the efficiency of in-tire mechanical energy utilization and power supply continuity are significantly improved. Simultaneously, bidirectional limit protection enhances the reliability of the piezoelectric structure.

The invention provides a distributed compressed air energy storage system based on an abandoned mine. The distributed compressed air energy storage system comprises an air storage and heat management unit, a compression and expansion power unit, an intelligent detection and control unit and a multi-scene energy interface unit. The air storage and heat management unit is used for achieving efficient storage of air and recovery, storage and dynamic distribution of heat energy in the compression or expansion process. The compression and expansion power unit is used for completing air compression energy storage and expansion energy release, and conversion between mechanical energy and electric energy is achieved. The intelligent detection and control unit is used for collecting system parameters in real time, constructing a digital twin model and generating a control strategy; and the multi-scene energy interface unit is used for dynamically adjusting output pressure, flow, voltage grade and temperature according to different scene requirements. The system provided by the invention solves the problem that an existing system cannot realize adaptive load change intelligent regulation and control. The invention further provides a method applied to the system.

The invention relates to a reinforcement (1) configured to interact with a smooth wheel arch of a motor vehicle. The reinforcement (1) comprises a base (11) with a generally doubly curved shape, defining a concavity that allows it to couple with the wheel arch by analogy of shape, and a plurality of stiffening elements (12) all extending straight along the transverse axis (Y). The stiffening elements (12) are distributed over the surface of the base (11) and along the longitudinal axis (X), so as to increase the stiffness of the base (11) along a transverse axis (Y) of the reinforcement (1) without increasing the stiffness of the base (11) along the longitudinal axis (X) of the reinforcement (1). Along the longitudinal axis (X), the stiffening elements (12) form structures for dissipating the mechanical energy resulting from a frontal impact, by accordion-like compression. Figure to be published with the abbreviation: Fig. 1

The I-shaped steel component with the damping material comprises a steel part integrally formed by a web plate and a wing plate, anti-vibration assemblies are arranged on the two sides of the web plate, and each anti-vibration assembly comprises a damping layer attached to the side face of the web plate and a restraining plate bonded to the outer surface of the damping layer through an adhesive layer; and the damping layer is sleeved and positioned with a positioning column protruding from the side surface of the web plate through a sleeving hole in the damping layer. The I-shaped steel component with the damping material aims to overcome the existing defects, mechanical energy of structural vibration is efficiently converted into heat energy through a restraint layer damping structure formed by the damping layer and the restraint plate, the heat energy is dissipated, vibration and noise of a ship engine room are effectively restrained, and the service life of the ship engine room is prolonged. Through the design of the positioning columns and the sleeving holes, rapid and accurate positioning of the damping layer is achieved; the adsorption magnets provide reliable temporary fixation, hands of operators are liberated, gluing and subsequent installation are facilitated, and the device is particularly suitable for high-altitude or narrow space operation.

The invention relates to a working head for thermally and / or mechanically working workpieces, which extends along a longitudinal axis L, the working head comprising a front part and a rear part, wherein the front part comprises at least one nozzle having an opening from which thermal and / or mechanical energy for workpiece working emerges during operation, the rear part is or can be connected to operating-medium supply devices, and the rear part and the front part can be releasably connected to each other and can be disconnected from each other, characterized in that the rear part and / or the front part have / has a drive device, the drive device or drive devices being designed to move the front part (200) at least partly along the longitudinal axis L relative to the rear part (300) for connection and in the opposite direction relative to the rear part for disconnection.