2433 results about "High frequency vibration" patented technology

The invention provides an intelligent sewage treatment process optimization method and system. The method comprises the following steps: continuously collecting the flux attenuation rate, transmembrane pressure difference and pollutant spectrum data of a ceramic membrane, carrying out time sequence analysis, constructing a pollution accumulation dynamic model, and predicting a critical threshold value; when a threshold value is reached, triggering an ultrasonic cavitation device, adjusting high-frequency vibration to generate a microbubble group, stripping pollutants by utilizing shock waves, and calculating membrane flux recovery data; fusing the spectral data and the recovery data to extract an actual pollution stripping efficiency value, and comparing a theoretical value to obtain a difference proportion; if the actual value is lower than the theoretical value, the cleaning period is shortened, the fluid pressure is increased to strengthen the stripping effect, and meanwhile, dynamic model parameters are reversely corrected based on the pressure adjustment amplitude to form closed-loop regulation and control. According to the invention, intelligent prediction, self-adaptive cleaning and closed-loop optimization of ceramic membrane pollution are realized, the sewage filtering efficiency is improved, and the energy consumption and cleaning cost are reduced.

The invention discloses a hydraulic motor fault diagnosis method and system based on heterogeneous asynchronous data fusion, and the method comprises the steps: collecting heterogeneous asynchronous data of a sensor network, carrying out the preprocessing of the data, inputting the data into a parallel dynamic pruning residual network, extracting features, and carrying out the preliminary fusion, thereby obtaining an initial feature plane; and inputting the initial feature plane into a multi-connection neural network, fusing data, extracting features, obtaining a final feature plane, using the fused feature data as a training set, and building a feature classification model to test and evaluate the performance of the feature classification model. According to the method, the limitation of a traditional fusion model in asynchronous processing of high-frequency vibration signals and low-frequency thermodynamic data of a hydraulic system is effectively overcome, the robustness of key fault features in a strong noise environment is remarkably improved, and rapid virtual-real mapping of bench test simulation data and online monitoring data is realized; typical faults such as plunger pair abrasion and valve plate cavitation of the hydraulic motor can be accurately supported, and safety guarantee is provided for equipment life prediction and safety control.

According to the drilling, sealing and injecting integrated anchor rod drilling intelligent monitoring system and method, a rod body is sequentially provided with a head-section wave-shaped threaded section, a middle-section large threaded section and a tail-section wave-shaped threaded section from the head end to the tail end, and a grouting channel is formed in the axis of the rod body; the drill bit and the round nut are respectively mounted at the head and tail ends of the rod body; the anti-shearing tray, the constant-torque pressing sheet and the hexagon nut are arranged on the outer side of the tail-section wave-shaped thread section in a sleeving manner; the built-in mixer is inserted into the grouting channel; the drilling machine is connected with the drilling, sealing and injecting anchor rod through a monitoring sensor arranged outside the hexagon nut in a sleeving mode. A strain type force sensor, a rotating speed sensor, a high-frequency vibration sensor, a well deviation instrument and a load sensor are arranged in the monitoring sensor. The method comprises the steps that a drilling machine rotates forwards to drive a drill bit to conduct drilling operation, deslagging operation is conducted synchronously, and in the drilling process, various sensors are used for collecting various parameters in real time; pre-tightening is conducted through reverse rotation of the drilling machine; a built-in mixer is used for grouting operation; and blocking treatment. According to the system and the method, the operation process can be intelligently monitored.

The invention discloses a rapid demolding device and method for a small prefabricated part, and relates to the technical field of prefabricated part production. The mold bearing table is mounted on the substrate of the demolding rack and is integrated with a multi-point temperature sensor and an acoustic vibration signal collector; the ejection demolding assembly is installed on the stand columns of the demolding rack in a liftable mode and comprises an ejection plate assembly, and an ejection force sensor and a high-frequency vibrator are arranged on the ejection plate assembly; the visual identification module is mounted on the demolding rack; and the controller is electrically connected with the multi-point temperature sensor, the sound vibration signal collector, the ejection force sensor, the high-frequency vibrator, the visual recognition module and a driving mechanism of the ejection demolding assembly. Multi-source sensing information is fused, the component condensation state and the demolding time are accurately judged, the ejection force and vibration in the demolding process are adaptively controlled, accurate and flexible control over the demolding time and process is achieved, and the demolding success rate and the component yield are remarkably increased.

The invention relates to the technical field of vibration and noise control, discloses a new energy automobile motor high-frequency vibration and noise active suppression system and method, and aims to solve the problems of poor high-frequency vibration and noise suppression effect, real-time performance, adaptive capacity and system cost complexity of an existing new energy automobile motor. The method comprises the following steps: acquiring and preprocessing motor operation state data, extracting high-frequency harmonic characteristics, and generating predicted harmonic characteristics in combination with working condition prediction; and superposing the self-adaptive compensation quantity to a motor voltage instruction, and driving an inverter through pulse width modulation to realize active suppression of high-frequency vibration and noise. The system comprises a data acquisition preprocessing module, a harmonic feature extraction module, a working condition sensing prediction module, a self-adaptive compensation quantity generation module and a pulse width modulation correction module. By the adoption of the technical scheme, efficient, real-time and self-adaptive suppression of high-frequency vibration and noise of the motor can be achieved, the level of the high-frequency vibration and noise is remarkably reduced, the driving comfort is improved, and the complexity and cost of the system are optimized.

The invention provides a precision injection mold data monitoring system, and relates to the technical field of data processing, and the system comprises a monitoring point positioning module which is used for setting a casting region monitoring point in an annular region with the radius of 5mm at the casting tail end of a mold, setting an ejection contact monitoring point in a circular region with the center diameter of 10mm of the contact surface of an ejection part, surface topography images of the area monitoring points and the ejection contact monitoring points are collected through an industrial camera, and contact pressure gradient data and high-frequency vibration energy signals are obtained. According to the method, the mold state is cooperatively analyzed, intelligent monitoring of the mold state and precision of maintenance decision are achieved, and the precision and efficiency of injection molding production and the mold life cycle management level are improved.

The invention relates to a permanent magnet synchronous motor optimization method and system based on a novel topological structure. The method comprises the steps that parametric modeling is carried out through preset magnetic pole block parameters, preset magnetic barrier groove geometric parameters and preset asymmetric air gap parameters, and a variable topology model library is generated; through multi-physics field coupling simulation, dynamic eddy current distribution, a local demagnetization risk coefficient and a high-frequency vibration mode of the permanent magnet synchronous motor are calculated; constructing a multi-target optimization model for optimization through dynamic eddy current distribution, a local demagnetization risk coefficient and a high-frequency vibration mode, and generating a Pareto optimal solution set; and based on the manufacturing tolerance sensitivity parameter and demagnetization risk coefficient distribution in the solution set, constructing a topology fault-tolerant structure and obtaining a dynamic current compensation strategy, and generating a final optimization scheme. According to the method, through comprehensive application of multi-physical field coupling simulation, multi-objective optimization and a dynamic compensation strategy, the precision and scientificity of motor optimization are improved, and effective technical support is provided for design and manufacturing of the motor.

The utility model relates to a device for quickly removing residual stress of a strong compression-resistant steel plate, which belongs to the technical field of metal material processing and comprises a fixing frame, bearing plates are fixed at the left end and the right end of the upper surface of the fixing frame, and a same top plate is fixed on the upper surfaces of the bearing plates. A vibration mechanism used for applying high-frequency vibration to the steel plate is arranged on the upper surface of the top plate, a fixing mechanism used for fixing the steel plate is arranged at the bottom of the right side of the fixing frame, and a controller is arranged on the left side of the fixing frame. And the fixing mechanism comprises a driving motor, a bidirectional screw rod, two screw sleeves, two connecting plates, two telescopic columns and two linkage blocks. According to the device for rapidly removing the residual stress of the high-compression-resistance steel plate, the technical problem of rapidly and efficiently removing the residual stress of the high-compression-resistance steel plate can be solved through the arranged fixing mechanism and vibrating mechanism, and meanwhile it is guaranteed that the performance of the treated steel plate is not affected; and the accuracy and the reliability of the processing process are ensured through the arranged real-time monitoring and controlling device.

The invention belongs to the technical field of cold-rolled sheet processing, and particularly relates to a physical defoaming alkali liquor circulation method which comprises the following steps: a foam capacitive monitoring array at the top of an alkali liquor tank generates a foam thickness gradient map in real time; real-time alkali liquor temperature, conductivity, circulating flow, strip steel running speed and historical foam thickness data are fused, a foam layer height prediction value is output, and when the prediction value exceeds a safety threshold value, a turbulence generator is automatically triggered to generate high-frequency pulse water flow; when the foam finally flows downwards to the top opening of the alkali liquor tank through the foam overflow pipe, the foam is crushed by high-frequency pulse water flow in the alkali liquor backflow pipeline and becomes alkali liquor to drop into the alkali liquor tank, the foam is physically crushed through fluid shear force and high-frequency vibration under the synergistic effect of the sectional type backflow pipeline and the capacitive foam monitoring array, the defoaming efficiency is high, and the defoaming effect is good. Dependent chemical defoaming agents are reduced, and the problems of strip steel surface residues and wastewater treatment are solved.

The invention discloses an anti-jamming coal mining drilling machine with drilling and multidirectional impacting functions and a using method thereof.The anti-jamming coal mining drilling machine comprises a drilling machine body, a high-pressure driving mechanism is arranged on the drilling machine body through a multidirectional guide rail mechanism, and a drilling assembly is connected with the high-pressure driving mechanism; when the drilling machine works, the high-pressure driving mechanism drives the drill rod and the drill bit to conduct rotary drilling, the high-frequency transverse vibration mechanism synchronously generates transverse high-frequency vibration, the high-pressure driving mechanism drives the drill rod and the drill bit to conduct rotary drilling, and the high-frequency transverse vibration mechanism drives the drill rod and the drill bit to conduct rotary drilling. The friction force between the drill bit and rock is reduced, debris accumulation is prevented, efficient deslagging is achieved, when hard rock or drill jamming occurs, the longitudinal vibration impact mechanism triggers longitudinal vibration, impact and drill jamming prevention functions are achieved through cooperative work of transverse vibration and longitudinal vibration, the drill jamming problem under the complex geological condition is effectively solved, the drilling efficiency and equipment reliability are improved, and the drilling cost is reduced. The device is suitable for drilling operation of mining roofs and baseplates, sides and the like.

The invention relates to the technical field of tailing mud treatment, and discloses a solid-liquid separator for treating tailing mud, which comprises a support frame, the top of the support frame is fixedly provided with a vertical plate I and a vertical plate II, the outer wall of the vertical plate II is fixedly provided with a fixed seat, and the top of the fixed seat is fixedly provided with a central control box; a cross beam is fixedly assembled between the first vertical plate and the second vertical plate, a sliding groove is formed in the outer wall of the cross beam, a filter plate is arranged on the outer wall of the cross beam, a circular groove is formed in the inner wall of the filter plate, and a solid-liquid separation assembly is arranged on the inner wall of the circular groove. An electric telescopic rod II is started under the control of a weighing display instrument, so that an arc-shaped plate can lift a lapping block to move up and down, a filter plate can perform high-frequency vibration, a filter cake can quickly fall off from the filter plate, discharging is more thorough, meanwhile, the cleanliness of equipment is improved, and the device is high in discharging speed and convenient to use. And the influence of filter cake residues on the next filtering process can be effectively avoided, and the discharging efficiency is improved.

The invention discloses a gas turbine running state data regression prediction method based on a fusion network, a plurality of sensors are arranged at different positions of a gas turbine, and the prediction method comprises the following steps: obtaining multi-source heterogeneous real-time data of the gas turbine in a current control period, the multi-source heterogeneous real-time data comprises sensor time sequence data, high-frequency vibration data, environment working condition data and control instruction log data, and constructing a unified data representation matrix of the multi-source heterogeneous real-time data; and based on the unified data representation matrix, a thermal efficiency prediction value and an emission concentration prediction value of the gas turbine in the next control period are obtained through a dynamic weight fusion network. By constructing the uniform data representation matrix of the multi-source heterogeneous real-time data and combining the dynamic weight fusion network, the problems of insufficient spatial-temporal characteristic difference processing of the multi-source data and rigid dynamic weight distribution in the prior art are effectively solved.

The invention provides a structure health early warning method and system based on space-time correlation characteristics and digital twinning, and relates to the technical field of data processing. The method comprises the following steps: acquiring multi-source heterogeneous data of a target structure; performing dynamic sampling alignment and wavelet packet decomposition on the multi-source heterogeneous data to extract energy features to obtain synchronous data, and performing abnormal data filtering on the synchronous data to obtain cleaned fusion data; performing wavelet decomposition on a high-frequency vibration signal in the fused data to obtain a damage impact feature, performing time sequence processing on low-frequency temperature data in the fused data to obtain a temperature time feature, and performing dynamic graph convolutional network processing on strain data in the fused data to obtain a spatial correlation feature; constructing an input vector; calculating a damage degree index; and according to the damage degree indexes, early warning grades are divided, and corresponding control instructions are triggered for different early warning grades. By implementing the technical scheme provided by the invention, the accuracy of structural health early warning can be improved.

The invention relates to a robot multi-frequency vibration composite suppression method and system based on inertia disturbance analysis. The method comprises the steps of obtaining dynamic operation data in the operation process of a robot; the operation data are input into an inertia disturbance analysis module, and a low-frequency vibration source caused by a mechanical structure and a high-frequency vibration source caused by a driving system can be accurately recognized; a disturbance frequency distribution diagram is generated, according to the distribution diagram, a self-adaptive filtering algorithm is adopted to suppress a high-frequency vibration source, a compensation algorithm based on model prediction control is adopted to suppress a low-frequency vibration source, the two strategies are cooperatively processed to generate a comprehensive control instruction, the advantages of the two algorithms are fully played, and effective composite suppression of multi-frequency vibration is achieved.

The invention discloses ultrasonic high-speed welding equipment and a welding method.The equipment comprises a rack, an electric control mechanism, an executing mechanism and a monitoring mechanism, and the executing mechanism comprises a first lifting assembly, a linear driving part, a welding executing assembly and a second lifting assembly; the linear driving piece is used for generating pressure for pressing the welding execution assembly on the to-be-welded piece, and the welding execution assembly is used for providing high-frequency vibration to achieve ultrasonic welding; the monitoring mechanism is used for monitoring the pressure of the linear driving part on the welding execution assembly, the pressure of the second lifting assembly on the bottom die, the real-time position of the welding execution assembly and the real-time position of the bottom die. The electric control mechanism is used for controlling the execution mechanism to operate according to a preset program and monitoring data obtained from the monitoring mechanism. According to the scheme, the welding efficiency can be improved, and pseudo soldering is reduced.

The invention belongs to the technical field of automobile vibration reduction, and provides a frequency-division double-closed-loop control method, system, medium and equipment for a vibration absorber, and the method comprises the steps that the vehicle body state of a vehicle is monitored in real time, and the vibration reduction state of the vehicle is determined based on the vehicle body state; if the vehicle is not in the vibration reduction state, a correction strategy is executed; dynamically capturing full-band vibration of the vehicle based on the correction strategy, obtaining a time domain signal and converting the time domain signal into a frequency domain signal; the frequency domain signal is processed, the current vibration type of the vehicle is determined, and a vibration reduction strategy corresponding to the current vibration type is determined based on the current vibration type; and the release current and the magnetorheological fluid state of the vehicle are regulated and controlled based on the vibration reduction strategy, and vibration reduction of the vehicle is completed. According to the invention, on the basis of effectively eliminating vibration invalid signals and eliminating interference energy, the limitation of low-frequency and high-frequency vibration dual suppression is reduced, broadband coverage is realized, the control precision is high, and the vibration reduction effect is good.

A battery cap welding machine comprises a base, and a welding mechanism and a cleaning mechanism are arranged on the base. The cleaning mechanism comprises an ultrasonic unit, a laser generator and a dust collection unit, and the ultrasonic unit, the laser generator and the dust collection unit cooperate to rapidly strip, gasify and remove welding slag; the ultrasonic unit makes contact with the welding position through the solid-state coupling piece and is used for generating high-frequency vibration so that welding slag can be preliminarily loosened and stripped from the welding face. The laser generator is used for focusing residual welding slag parts and instantly gasifying stubborn welding slag by using high energy of laser; and the dust suction unit sucks and cleans the welding slag stripped and gasified by the ultrasonic unit and the laser generator through a plurality of dust suction ports. According to the invention, through the ultrasonic, laser and dust collection units in the cleaning mechanism, the residual stubborn welding slag after the welding of the battery cap is removed in all directions, so that the welding slag cleaning efficiency and quality are greatly improved, the potential problems such as short circuit caused by the residual welding slag are reduced, the product yield is remarkably improved, and the battery production efficiency is improved.

The invention relates to the technical field of hemispherical harmonic oscillator assembly, in particular to a welding method and device for an assembled hemispherical harmonic oscillator, and the device comprises a vibration welding platform and a clamping assembly located above the vibration welding platform; the vibration welding platform is used for bearing the sensitive base and providing a thermal field and a vibration field needed by welding, and the clamping assembly is used for clamping the center shaft and sending the center shaft into a center hole of the base. A heating unit and a composite vibration ultrasonic transducer are arranged in the platform, and the platform is configured to apply high-frequency vibration formed by superposition of vertical longitudinal waves and horizontal torsional waves to the base. The high-frequency vibration thixotropic effect is used for reducing the viscosity of the molten solder, the ultrasonic cavitation effect is used for forcibly discharging bubbles at the bottom of the blind hole, and the sound radiation pressure generated by the vibration standing wave field is used for driving the center shaft to achieve friction-free self-centering in the hole. According to the device, the problems of air bolt pseudo soldering and rigid assembly clamping stagnation in the traditional process are solved, and the assembly coaxiality and the connection strength of the harmonic oscillator are remarkably improved.

The invention relates to the technical field of multi-axis cooperative motion control, and discloses a method for calculating acceleration and deceleration of each motion axis by stroke and vibration limitation, which comprises the following steps of: S1, acquiring stroke data (Sx, Sy) of each motion axis and a preset acceleration resultant vector limit value; s2, based on the stroke data of each shaft and the acceleration resultant vector limit value, determining the total motion time T meeting the requirement of multi-shaft synchronous start and stop; and S3, according to the total motion time T, calculating acceleration and deceleration time (Tx0, Ty0) corresponding to each motion axis, and verifying whether an acceleration resultant vector meets a limiting condition or not. By combining real-time iterative optimization of total motion time T and acceleration and deceleration time, instantaneous acceleration and braking caused by a stepped track under high-speed motion are effectively suppressed, structural resonance and noise are reduced, constant-speed stage time and acceleration abrupt change rate are limited, a speed curve is further smoothed, high-frequency vibration energy transfer is reduced, and the high-speed vibration performance is improved. Therefore, the equipment operation stability is improved and the mechanical life is prolonged.

The invention relates to the technical field of air conditioning, and discloses a control method of air treatment equipment. The filter screen device of the air treatment equipment comprises a filter screen body used for filtering air; the ultrasonic generator is connected with the filter screen body in a contactable manner so as to transmit vibration energy of the ultrasonic generator to the filter screen body. According to the self-cleaning filter screen device, high-frequency vibration of the ultrasonic generator is used for conducting vibration cleaning on dust attached to the filter screen body, almost no dust remains on the filter screen body, cleaning is thorough, the cleaning efficiency is high, noise is low when the ultrasonic generator works, energy consumption is low, and the use experience of a user can be effectively improved through the self-cleaning filter screen device. The vibration intensity and the vibration frequency of the ultrasonic generator are controlled according to the environment temperature and / or humidity, and the cleaning effect is ensured.

The invention discloses a catastrophe early warning system for a tunnel passing through an active fault zone, and relates to the technical field of tunnel early warning, the system comprises a multi-mode sensing layer used for obtaining micro-seismic wave, vibration, inclination and strain data along the tunnel fault zone, the multi-mode sensing layer comprises an optical fiber distributed sound wave sensing unit DAS, a data processing unit DAS and a data processing unit DAS, the optical fibers are arranged along the inner side of the tunnel lining at intervals of 10m and are used for monitoring tiny sound wave signals of a fracture surface in real time; the MEMS accelerometer arrays are arranged at four corners of each section and are used for detecting high-frequency vibration; gNSS and INS combined inclination strain sensors which are installed on the top plate and the side wall of the tunnel and are used for obtaining millimeter-level inclination and strain changes; and the acoustic cavity sensor is arranged in a near area of the sliding surface of the fault zone and is used for capturing an air sound wave precursor signal. According to the invention, through multi-mode fusion sensing, the function of capturing fracture micro-shock, vibration and deformation in all directions is realized, the problem of missed alarm and false alarm of single sensing is solved, the sensitivity order of magnitude is improved, and the false alarm rate is reduced.

The present application discloses a method and device for modeling and topological optimization design of a reinforced flat plate with an embedded acoustic black hole. The method includes: dividing the design domain into units based on design variables to construct a collaborative optimization model; dividing the reinforced area with solid units and the flat plate area with variable thickness shell units to simulate acoustic black holes; coupling the variable thickness shell units with the solid units and determining the stiffness matrix; introducing maximum size constraints and / or geometric non-interference constraints and / or geometric-topological non-interference constraints and / or draft constraints in the design process; solving the sensitivity of the design variables based on the optimization target combined with the stiffness matrix to obtain the optimization result; if the optimization result does not meet the convergence condition, redefine the design variables based on the sensitivity. It solves the problem that the existing vibration reduction means are difficult to efficiently realize the lightweight vibration reduction design of thin-walled structures. It takes into account the structural stiffness and the vibration and noise reduction characteristics of the medium and high frequencies, realizes the structure-function integrated design, and reduces the dynamic response of the thin-walled structure.

The invention relates to the technical field of fiber sizing treatment, and discloses an aramid fiber sizing device and method.The aramid fiber sizing device comprises a yarn unwinding device, a sizing tank, a yarn spreading and drying device and a winding device, the yarn spreading and drying device comprises a primary yarn spreading assembly, a drying roller and a secondary yarn spreading assembly, and the yarn spreading assembly comprises a first vibration roller, a conveying roller and a second vibration roller; the vibrating roller vibrates in the direction perpendicular to the fiber conveying direction. After being unreeled, fibers are sized through the sizing tank and fed into the yarn spreading and drying device to be subjected to wet broadening, mechanical damage to fiber bundles is reduced, and broken filaments are reduced. During primary yarn spreading, the vibrating roller vibrates at high frequency to enable fiber bundles to be dispersed and widened under the action of transverse friction force, extrusion mechanical damage of the fiber bundles is reduced, broken filaments are reduced, redundant size is removed, drying is facilitated, and adhesion between monofilaments is reduced. During secondary yarn spreading, fiber bundling force applied by surface tension of slurry does not need to be overcome, secondary spreading of fiber bundles is achieved under high-frequency vibration of the vibrating roller, and good monofilament dispersity is guaranteed.

The present invention relates to the technical field of coating machines, and discloses a multi-drying coating machine, which includes a support plate body, a base material roller, a composite dryer, and a discharge roller. The two ends of the support plate body are respectively rotatably connected with a base material roller and a discharge roller. A composite dryer is arranged between the base material roller and the discharge roller. A tension shaft is arranged between the base material roller and the composite dryer. A coating mechanism is arranged on one side of the tension shaft. The coating mechanism includes a transfer coating roller, a support base, and a comma knife. A coating base material is arranged between the transfer coating roller and the support base. The comma knife is arranged on one side of the transfer coating roller, and ultrasonic vibration modules are arranged on both the upper and lower sides of the comma knife. The ultrasonic vibration modules change the electromagnetic field around the comma knife to generate high-frequency vibration on the surface of the comma knife; the high-frequency vibration of the comma knife not only optimizes the distribution of the coating material, but also enhances the interaction between the coating material and the base material, effectively promoting the contact and penetration between the coating material molecules and the coated base material.

The invention discloses a GIS equipment shell vibration fault identification method and system based on a physical information neural network, and relates to the technical field of GIS fault diagnosis, and the method comprises the steps: collecting a vibration acceleration signal of the surface of a GIS shell; establishing a simplified physical model of the vibration system, and determining a control equation, initial conditions and boundary conditions of the vibration system; based on the HFT-MPINN or the RL-PINN, constructing a parameter inversion model; fusing physical constraint loss, experimental data loss and multi-parameter coupling loss of the vibration system to construct a composite loss function; training a parameter inversion model by using the vibration acceleration signal to obtain key physical parameters of the vibration system; time-frequency domain analysis and finite element simulation verification are combined, and the mechanical fault type and degree of the GIS equipment shell are recognized. According to the method, the modeling precision, the noise robustness and the multi-working-condition adaptability of the high-frequency vibration signals are improved, and reliable technical support is provided for intelligent fault diagnosis of GIS equipment.

The utility model provides a four-roll-shaft laser ultrasonic concrete paver, which relates to the technical field of concrete pavers and comprises a laser ultrasonic concrete paver assembly, and a cleaning assembly is arranged in the laser ultrasonic concrete paver assembly. A tamping and paving assembly is arranged on the side face of the laser ultrasonic concrete paver assembly, the laser ultrasonic concrete paver assembly comprises an auger material distribution shaft, a high-speed leveling shaft and a high-frequency vibration shaft, and the tamping and paving assembly comprises a fixing plate; according to the concrete surface rubbing device, the vibration motor works to drive the vibration rubbing plate to vibrate, so that the vibration rubbing plate vibrates and rubs the concrete surface, and tiny low-lying and uneven areas on the concrete surface can be conveniently filled; the undulation and wavy defects caused by insufficient extrusion of the roller shaft in the paving process of the concrete surface are effectively reduced, so that the concrete surface is smoother, the flatness and compactness of the concrete surface are improved, and the pavement quality is further improved.

The invention relates to the technical field of structural health monitoring, and discloses a high space-time sampling fusion method and system, a terminal and a storage medium, and the high space-time sampling fusion method comprises the steps: obtaining an event stream of a monitoring target, a grayscale image, and a visible light image in the same time dimension, the event stream and the grayscale image are homologous data, and the resolution of the visible light image is higher than that of the event stream; performing feature matching and affine transformation according to the gray level image and the visible light image to obtain a registration gray level image; event up-sampling is carried out according to the event stream and the visible light image, a matching event stream is obtained, and the resolution ratio of the matching event stream is consistent with that of the registration grayscale image; and generating monitoring data of the monitoring target according to the registration grayscale image and the matching event stream. According to the invention, high-frequency vibration capture and millimeter-level deformation analysis of the monitored target can be realized synchronously, and the monitoring effect is improved.

The invention relates to the technical field of vibration sensors, and discloses a high-precision vibration spectrum sensor, which comprises a shell, a sealing cover is embedded in the shell, the top of the sealing cover is flush with the top of the shell, and the shell and the sealing cover form a closed space; and the sensor mechanism is arranged in an inner space defined by the shell and the sealing cover, the sensor mechanism comprises an insulating cylinder, the outer wall of the insulating cylinder is fixedly connected with a connecting block, the insulating cylinder is fixedly connected to the inner wall of the shell through the connecting block, and the interior of the insulating cylinder is fixedly connected with a first electrode plate and a second electrode plate. The sensor is excellent in detection performance and capable of accurately capturing vibration signals, the core component is made of high-quality materials, the spring wire is stable in elasticity and resistant to corrosion, the ball body responds to high-frequency vibration rapidly, the electrode plates reduce signal loss, vibration is converted into electric signals through equivalent capacitance changes, various curves can be generated, early fault features can be recognized in an assisted mode, and the detection accuracy is improved. And the detection accuracy and completeness are ensured.

The invention relates to the technical field of unmanned helicopters, in particular to a carbon fiber reinforced rotor wing connecting piece numerical control lathe vibration suppression clamp which comprises a claw disc, a vibration suppression mechanism and an inner supporting mechanism. The clamping blocks make contact with the ends of the carbon fiber rotor wing connecting pieces. The vibration suppression mechanism comprises a clamping adjusting assembly penetrating through the top of the damping rod, the clamping adjusting assembly is in pressure communication with the pneumatic rail, the damping rod provides buffering and vibration suppression, and the inner supporting mechanism and the claw disc are coaxially fixed. The clamping pressure is adjusted in real time through the linkage design of the pneumatic track and the vibration suppression mechanism, the cutting force difference during asymmetric machining is effectively balanced and high-frequency vibration of a carbon fiber material is suppressed in combination with a multi-point supporting structure of the inner supporting mechanism, so that the dimensional precision and the surface quality of a workpiece are guaranteed, and the machining efficiency is improved. The device has the advantages of dynamically adjusting clamping pressure, balancing cutting stress, restraining high-frequency vibration and improving machining precision.

The utility model discloses a rolling device which comprises an installation frame, an upper roller and a lower roller, a crack for a pole piece to pass through is arranged between the upper roller and the lower roller, two ends of the upper roller are respectively connected with a first bearing seat, the two first bearing seats are installed on the installation frame in a sliding mode, two ends of the lower roller are respectively connected with a second bearing seat, and the second bearing seats are installed on the installation frame in a sliding mode. The two second bearing seats are installed on an installation frame, the upper roller and the lower roller are in transmission through a gear transmission mechanism, an ultrasonic transducer is arranged on the installation frame, the output end of the ultrasonic transducer is connected with the first bearing seat, and the ultrasonic transducer is used for driving the first bearing seat to vibrate up and down. According to the rolling device disclosed by the utility model, under the action of inertia force generated by high-frequency vibration of the upper roller, the pole piece is rolled and generates plastic deformation, particles in a coating displace, and pores are reduced, so that the surface density of the pole piece is increased.