497 results about "Vibration source" patented technology

The invention discloses a pump set vibration monitoring method and system based on distributed sensing. The method comprises the steps that vibration collection signals and real-time working condition parameters of distributed sensing nodes are obtained, multi-node clock synchronization correction is executed, and synchronous vibration data frames are formed; time-frequency feature extraction is carried out on the multi-channel vibration data set, abnormal channels are identified through inter-channel consistency analysis, a local fault correlation frequency band is extracted, and a vibration feature vector is constructed; associating the vibration feature vector with a real-time working condition parameter to form a working condition-feature mapping table, identifying a feature mutation rotating speed point for the feature baseline, adaptively dividing a rotating speed interval to generate an adaptive working condition threshold value, and implementing out-of-limit detection to generate an abnormal trigger identifier; determining a traceability analysis window based on the abnormal trigger identifier, and executing multi-measuring-point coherence calculation and energy attenuation gradient analysis to construct an energy transfer link diagram; and finally, vibration source position positioning is performed to form fault source probability distribution, a fault mode label is matched, pump set vibration monitoring is completed, and quantitative positioning of a fault source is realized.

The invention provides an adjustable damping capsule vibration isolation system based on electrorheological fluid, and belongs to the field of vibration isolation devices.The adjustable damping capsule vibration isolation system comprises a vibration isolation capsule, the vibration isolation capsule is filled with the electrorheological fluid, and the electrorheological fluid comprises solid particles; a pneumatic pump; a conduit; at least part of solid particles in the electrorheological fluid move to the guide pipe under the action of gravity; the pneumatic pump is configured to pump gas into the guide pipe based on the target gas flow so as to convey a target number of solid particles in the guide pipe into the vibration isolation bag body to change the concentration of the solid particles in the electrorheological fluid, and the electrorheological fluid is configured to perform vibration isolation treatment on elastic waves of the vibration source by using an electrorheological effect based on the concentration of the solid particles.

The invention provides a capsule vibration isolation system based on nanobubbles, and belongs to the field of vibration isolation devices. The capsule vibration isolation system based on the nanobubbles comprises a vibration isolation capsule, the vibration isolation capsule is filled with buffer liquid and solid particles, the nanobubbles are attached to the surfaces of at least part of the solid particles, and bubble attached particles are formed; wherein the bubble attachment particles are configured to collide under the action of elastic waves of the vibration source, so that nano bubbles on the surfaces of the bubble attachment particles are broken, and the bubble attachment particles generate internal energy based on collision friction and bubble breakage to increase energy dissipation of the elastic waves so as to perform vibration isolation treatment on the elastic waves of the vibration source; and the preparation device is configured to prepare the nano bubbles based on a target generation rate under the control of the far infrared control signal, and input the nano bubbles into the vibration isolation bag body through the lower surface of the vibration isolation bag body so as to change the concentration of the bubble attachment particles in the vibration isolation bag body.

The invention relates to the technical field of laser cladding repair, and provides a positioning and clamping system and method for repairing the surface of a large working roll of a steel mill based on laser cladding, a three-field coupling prediction model of a temperature field, a stress field and a displacement field is established, and a partial least squares regression algorithm is combined with a Kalman filter to realize multi-step prospective prediction. According to the predicted thermal deformation, self-adaptive compensation control is implemented through a three-layer cascade compensation mechanism composed of a hydraulic drive, a piezoelectric ceramic driver and a laser head adjusting mechanism. The system adopts a time domain, frequency domain and time-frequency domain joint analysis method to extract vibration characteristics, vibration types are classified and identified through a support vector machine, and an active-passive hybrid suppression strategy is adopted for different vibration sources. High-precision positioning and stable clamping of the large working roller in the laser cladding repairing process are achieved, and the thickness uniformity and the surface quality of a cladding layer are remarkably improved.

The invention relates to a site micro-vibration attenuation test measuring point determination method and system, belongs to the technical field of vibration test, and solves the problem that vibration test measuring point arrangement depends on vibration source load accuracy or artificial experience in the prior art. The method comprises the following steps: determining a basic measuring point based on a target site parameter, obtaining an actual measurement vibration response, and calculating an actual measurement response transfer ratio; establishing an initial finite element model of the target site, and applying a preset load to the initial finite element model to obtain an initial finite element calculation result; according to the basic measuring points, corresponding model calculation points and predicted vibration responses are extracted, and predicted response transfer ratios are calculated; and performing model parameter updating by using the actually measured response transfer ratio and the predicted response transfer ratio, obtaining a basic finite element model, generating a vibration transfer form curve, obtaining vibration transfer characteristics, and determining the number and the positions of the measuring points. The micro-vibration transmission characteristics are accurately determined without depending on the vibration source load, and the number and the positions of the vibration attenuation test points are reasonably formulated.

The invention discloses a dynamic calibration device and method for a visual vibration measurement system, the device comprises a dynamic standard vibration source, a calibration target, a laser Doppler interferometer, a data processing unit and a control unit, the dynamic standard vibration source outputs steady state, transient state and random vibration signals, the calibration target is fixed at the vibration output end of the dynamic standard vibration source, and the laser Doppler interferometer is fixed at the vibration output end of the dynamic standard vibration source. An acquisition target is provided for a calibration process; the calibrated visual vibration measurement system collects a dynamic image to obtain a vibration measurement parameter, and the laser Doppler interferometer synchronously obtains a standard vibration dynamic parameter; the data processing unit receives the dynamic vibration measurement parameters and the dynamic standard vibration parameters, and quantifies dynamic amplitude deviation, frequency tracking delay and phase difference; and the control unit generates calibration parameters of the calibrated visual vibration measurement system according to the type of the dynamic error under the condition that the dynamic error exceeds an error threshold value. According to the invention, quantitative evaluation and automatic calibration of the dynamic error can be realized, and the calibration precision and efficiency are improved.

The invention relates to the technical field of rail transit, and discloses a rail transit tunnel surface environment vibration assessment method, system and device and a medium. The method comprises the following steps: constructing a vehicle-rail-fastener dynamic model; calculating a fastener acting force frequency spectrum according to the vehicle-track-fastener dynamic model; constructing a 2.5 D finite element-basic solution solving model of tunnel-surrounding rock; solving the tunnel-surrounding rock 2.5 D finite element-basic solution solving model to obtain basic solution equivalent vibration source intensity; and calculating earth surface vibration according to the fastener acting force frequency spectrum, the basic solution equivalent vibration source intensity and the field layered soil body power transfer matrix model. According to the method, track vibration, tunnel vibration and site vibration are decoupled, the calculation method with the highest calculation efficiency is adopted in each subsystem, the advantages of each modeling method are fully combined, the calculation efficiency is extremely high, the obtained result is more accurate, the cost is low, and therefore the track traffic tunnel surface environment vibration condition is rapidly and accurately evaluated.

The application discloses a damping device and a damping method, which combines a friction generator with a damping component, so that the friction generator outputs an electric signal under the action of an external vibration source, and when the electric signal is transmitted to the damping component, the electric signal can adjust the inherent frequency of the damping component itself, so that the adjusted inherent frequency is different from the vibration frequency provided by the external vibration source, so that the damping component and the external vibration source cannot achieve resonance, thereby achieving the purpose of damping; and since the electric signal is provided by the friction generator, an external excitation power supply is not needed, the dependence on the external excitation power supply is reduced, and passive damping is achieved; in addition, the damping device does not need a complex structure, and only needs to combine the friction generator with the damping component to achieve damping, so that the structural complexity of the damping device is effectively simplified, the manufacturing cost of the damping device is reduced, and the manufacturing efficiency of the damping device is improved.

The invention relates to the technical field of bridge structure engineering, in particular to a new and old bridge joint vibration disturbance control method, which comprises the following steps: S1, arranging a sensor at a new and old bridge joint, and collecting vibration data of the part; according to the method, a multi-source information identification model is constructed by fusing a physical mechanism and deep learning, robust identification of a vibration source and dynamic reconstruction of a transmission path are realized in combination with vibration transmission entropy and Granger causal test, an accurate basis is provided for subsequent vibration reduction scheme design, and an adaptive scheme is screened based on vibration characteristics, so that the accuracy of vibration reduction is improved. A four-dimensional coupling model is constructed through finite element simulation, an improved genetic algorithm is adopted to solve a Pareto optimal solution under the constraint of cooperative work performance of new and old bridges, parameters are selected according to engineering priorities, and cooperative optimization of the vibration reduction effect, structural safety, cost control and durability is achieved. Therefore, the accuracy and engineering applicability of vibration disturbance control at the joint of the new bridge and the old bridge are remarkably improved.

The invention discloses a rotary machine dynamic balance optimization method based on an attitude performance correlation model, and relates to the technical field of rotary machine dynamic balance optimization. Comprising the following steps: S1, synchronously collecting rotor vibration signals and temperature field data through temperature and vibration sensors, carrying out real-time calibration on structure parameters, substituting a temperature compensation algorithm to calculate interference components, and outputting pure vibration deviation data subjected to temperature compensation; the structural parameters comprise a rotor thermal expansion coefficient, a bearing radial clearance temperature attenuation coefficient and inherent or dynamic characteristic parameters related to material properties, geometric dimensions and connection states of the rotary machinery. The method has the advantages that through deep combination of vibration and temperature, a temperature-frequency spectrum-amplitude three-dimensional coupling traceability matrix is constructed; multi-feature matching is achieved through a fusion algorithm, temperature-dominated vibration sources and mechanical-dominated vibration sources can be clearly distinguished, and the accuracy of the dynamic balance optimization direction is guaranteed.

According to the switch cabinet vibration signal positioning method and device, the storage medium and the computer equipment provided by the invention, in the operation process of the switch cabinet, the vibration signals generated by the switch cabinet are collected in multiple directions, amplitude detection is carried out after multi-channel time sequence data are formed, and signal segments with potential defects are extracted from the multi-channel time sequence data; further generating a vibration event data packet corresponding to each vibration signal so as to carry out targeted analysis; as the convolution iteration filtering algorithm has better anti-noise capability and higher time resolution, the method can be adopted to extract the signal first arrival time of each vibration event data packet more accurately; and directly performing time difference analysis on the first arrival time of each signal by using the mathematical relationship between the time difference and the vibration source point position established in the finite difference time domain simulation model to obtain the defect vibration source point position of the switch cabinet, so that large-scale disassembly or complex measurement of the switch cabinet is not needed, and the time difference analysis efficiency is improved. Therefore, the position of the defect vibration source point can be accurately determined.

The invention discloses a multi-scene distributed optical fiber acoustic sensing vibration data fusion early warning platform, and relates to the technical field of scene vibration early warning. A vibration analysis and sorting module analyzes collected vibration signals by using a multi-source data fusion algorithm, identifies and classifies the characteristics of vibration sources, automatically performs priority sorting on the vibration sources, and performs early warning on the vibration sources; an area with potential threats is selected for secondary analysis and real-time monitoring; and the strategy generation and early warning module automatically predicts the risk level of each region of the subway according to the vibration source identification and analysis result, and formulates a coping strategy based on the priority and the risk level. According to the early warning platform, through multi-sensor data fusion and an intelligent priority ranking mechanism, the precision and timeliness of vibration monitoring are remarkably improved, and real-time dynamic early warning and intelligent resource management are realized, so that efficient and safe operation of a subway system is ensured.

The invention relates to the technical field of electric connector weak light assembly vibration compensation alignment methods, particularly discloses an electric connector weak light assembly vibration compensation alignment method, and aims to solve the problems of low electric connector assembly positioning precision and high pseudo soldering rate caused by vibration in a weak light environment. The method comprises the following steps: monitoring the thermal radiation change of a vibration source in real time through an infrared thermal imaging sensor, and pre-judging a vibration acceleration vector in combination with a lightweight long-short-term memory neural network; synchronously triggering dual polarization angle imaging to respectively capture a housing reference mark and an enhanced terminal metal feature; the vibration data and the polarization image flow are fused in the field programmable gate array, a self-adaptive optical flow algorithm is adopted to resolve the displacement compensation amount, and a piezoelectric ceramic actuator is driven to carry out submicron order reverse displacement compensation; when the compensation amount exceeds a threshold value, a low-delay correction instruction is sent to the robot through an Ethernet control automation technology bus, and the steady-state error is ensured to be smaller than 0.3 micrometer by combining a strain gauge fine tuning feedback loop. According to the technical scheme, the assembling precision, efficiency and production line adaptability are remarkably improved.

The utility model discloses a noise reduction structure, a vibration assembly and a vehicle, and the noise reduction structure is used for being attached to the surface of a housing of a component with vibration excitation and comprises multiple layers of metal sheets; the number of the damping layers is multiple, and the multiple damping layers and the multiple metal sheets are arranged in a stacked mode. According to the noise reduction structure, the plurality of metal sheets and the plurality of damping layers are arranged and attached to the surface of the component with vibration excitation, so that the metal sheets and the damping layers are combined, the noise reduction structure has sound absorption, sound insulation and vibration reduction performance, and the effect of reducing radiation noise of the shell can be achieved; and the original part structure and material with a vibration source do not need to be changed.

The invention discloses a vibration test and state monitoring method and system for an in-operation high-voltage circuit breaker, and the method comprises the steps: carrying out the energy propagation time sequence test of a multi-measurement-point vibration signal, constructing an energy flow direction topological graph, and precisely positioning a vibration source region through energy ratio analysis and path backtracking; acquiring a response time constant by adopting an impact response attenuation test, and converting a vibration source into a fault space positioning coordinate through space grid division and rate matching; a frequency-space mapping relation is established based on a fault position, and vibration characteristics are comprehensively described through peak frequency time sequence tracking and nonlinear component identification such as frequency multiplication, modulation and transient state; performing dispersion analysis on the continuous action impact peak value to form an action consistency deviation, and fusing a nonlinear feature set to quantitatively evaluate the mechanical degradation degree; the grading test density is generated according to the degradation state, the time period test unit is determined, the state grading test benchmark is established to realize mechanical state grade judgment, and the equipment operation reliability and the monitoring efficiency are improved.

The invention relates to the technical field of energy collection systems, and discloses a combined low-frequency vibration energy collector which comprises a lower-layer structure and an upper-layer structure which are combined to form an upper-layer and lower-layer coupled structure. The lower layer structure is an arc-shaped flexible beam, and the arc-shaped flexible beam is used for collecting piezoelectric energy generated by bending deformation; the upper layer structure is a T-shaped cantilever beam, the T-shaped cantilever beam is used for responding to bending modes in different directions and realizing multi-point energy collection, and the energy collection efficiency is improved by introducing mass load to regulate and control structural dynamic behaviors; the first end of the arc-shaped flexible beam is used for being fixed to the edge of a base to conduct energy conversion, the second end of the arc-shaped flexible beam supports the upper layer structure through the first mass block and is combined to form an integrally-connected composite vibration system used for transmitting inertial response, and the first mass block is used for adjusting the inherent frequency to be matched with a low-frequency vibration source.

Provided in the present invention is a digital twin management and control method for an urban cable, the method comprising: constructing a digital twin model for an urban cable; acquiring monitoring images of monitoring data, recognizing in each monitoring image an object type and a relative distance to the cable, and generating object impact data; on the basis of temperature data, humidity data and an oxygen content, determining oxidation impact data; when vibration data is greater than a preset threshold, calling corresponding monitoring data on the basis of the digital twin model, so as to determine a vibration source, and, on the basis of the vibration source and corresponding current operating data, generating vibration impact data; on the basis of a cable demand power, the object impact data, the oxidation impact data and the vibration impact data, determining a cable power error range; generating a cable operating state; and, when the cable operating state indicates an operation anomaly, turning off the abnormally operating urban cable, and generating a cable regulation scheme. The present invention can improve the effect of urban cable management and control.

The application discloses an eddy current negative stiffness magneto-rheological elastomer vibration isolator, which comprises an eddy current damping structure and a negative stiffness magneto-rheological elastomer structure, wherein the eddy current damping structure comprises a U-shaped permanent magnet and a conductor, and the U-shaped permanent magnet and the conductor are annular; the bottom of the U-shaped permanent magnet is mounted on a bottom plate; the top of the conductor is connected with a top plate, and the bottom of the conductor is mounted in the U-shaped permanent magnet to move in a cutting magnetic induction line mode; the bottom plate and the top plate are respectively mounted on a vibration source and a vibration-isolated structure; one end of the negative stiffness magneto-rheological elastomer structure is arranged in an annular inner ring of the U-shaped permanent magnet and connected with the bottom plate; and the other end of the negative stiffness magneto-rheological elastomer structure is arranged in an annular inner ring of the conductor and connected with the top plate. The application can reduce the amplitude of the vibration isolation system when passing through a resonance region, improve the relative vibration isolation effect, and prevent the vibration isolation system structure from being adversely affected due to resonance.

The invention provides an anti-impact six-degree-of-freedom quasi-zero stiffness vibration isolation platform which comprises a first-stage vibration isolation layer and a second-stage vibration isolation layer and is characterized in that the first-stage vibration isolation layer is composed of four self-adaptive quasi-zero stiffness vibration isolation systems and used for supporting a panel and isolating vibration from equipment or the ground; the second-stage vibration isolation layer is composed of four active vibration isolation systems and used for further attenuating residual vibration and restraining internal motion disturbance of equipment. According to the quasi-zero-stiffness vibration isolator, the core problem that a traditional quasi-zero-stiffness vibration isolator cannot adapt to dynamic load changes and the anti-impact requirement is solved, a high-reliability and ultra-quiet environment is provided for high-end precision manufacturing, six-degree-of-freedom vibration control can be achieved, a vibration isolation belt is wider, vibration isolation of a 0.1-500 Hz vibration source can be achieved, the bearing capacity is large, the 20000 kg bearing requirement can be met, and the quasi-zero-stiffness vibration isolator is suitable for large-scale popularization and application. The device can adapt to precise instruments of different models, and is wide in application range and high in universality.

Provided in the present application are an analysis method and device for coffee particles. The device comprises: a vibration source configured to drive the coffee particles to vibrate at least twice; a camera configured to respectively capture images of the coffee particles after the at least two vibrations, obtaining a to-be-detected image set containing images of coffee particles with different distributions; one or more processors communicatively coupled to the camera; and a memory storing instructions executable by the one or more processors, wherein the instructions, when executed by the one or more processors, cause the one or more processors to: acquire initial recognition information of the coffee particles in each to-be-detected image of the to-be-detected image set; determine final recognition information of the coffee particles based on the initial recognition information of the coffee particles in at least some frames of to-be-detected images in the to-be-detected image set.

The utility model relates to the field of valves, in particular to an anti-shock steam control valve which comprises a valve body, a cage cover, a valve element, a valve rod and a gland, the cage cover is arranged in the valve body, the valve element is arranged in the cage cover and slides in the axial direction of the cage cover, the gland is fixedly connected with the valve element, and the valve rod is arranged in the valve body. The lower end of the valve rod penetrates through the gland and is arranged between the gland and the valve element, the valve rod applies downward driving force to the valve element, and the valve rod applies upward driving force to the gland; by adopting the structure that the valve core and the valve rod are separately connected, the valve rod and the valve core serving as a main vibration source are effectively isolated from each other in structural vibration transmission paths, so that most vibration energy generated by the valve core under the impact of high-flow-speed steam is mainly absorbed and buffered by the valve core and a guide structure; direct and rigid transmission to the valve rod is difficult.

To provide a seat that allows the occupant to recognize the location of the vibration source as accurately as possible. [Solution] The seat 1A comprises a seat portion 3 and a backrest 4, two pairs of vibrators 5L, 5R, 6L, 6R, and vibration absorbing materials 7 and 8, and constitutes the driver's seat of the vehicle. The vibration absorbing material 7 is disposed at the boundary between the first region E1 and the second region E2 of the seat portion 3 and is disposed in the middle of the pair of vibrators 5L and 5R. The vibration absorbing material 7 suppresses the propagation of vibrations of vibrator 5R to the second region E2 and the propagation of vibrations of vibrator 5L to the first region E1. The vibration absorbing material 8 is disposed at the boundary between the first region E3 and the second region E4 of the backrest 4 and is disposed in the middle of the pair of vibrators 6L and 6R. The vibration absorbing material 8 suppresses the propagation of vibrations of vibrator 6R to the second region E4 and the propagation of vibrations of vibrator 6L to the first region E3.

The invention discloses a belt conveyor safety online monitoring method and device, a medium and a product, and relates to the field of belt conveyor safety monitoring, and the method comprises the steps: collecting a multi-vibration-source signal and a temperature signal of a belt conveyor through a vibration reduction and sensitization acoustic vibration optical cable device; the vibration reduction and sensitization acoustic vibration optical cable device is of a multi-core optical fiber spiral winding structure, and a gradient vibration reduction layer is integrated on the outer layer. Sequentially carrying out wavelet packet decomposition, blind source separation and deep learning optimization on the multi-vibration-source signal, and determining a single-vibration-source signal corresponding to each part; performing time synchronization on the single vibration source signal and the corresponding temperature signal by adopting a dual-optical fiber redundant link and an optical fiber gyroscope; and performing multi-source data fusion diagnosis by adopting a D-S evidence theory according to the synchronized single vibration source signal and the corresponding temperature signal in combination with a sound signal, and generating a fault early warning signal. The distributed optical fiber monitoring accuracy and stability of the belt conveyor can be improved.

This application provides a method, apparatus, device and computer-readable storage medium for analyzing coffee particles. The method includes: controlling a vibration source to drive coffee particles to vibrate at least twice, collecting images of the coffee particles after at least two vibrations to obtain a set of test images of coffee particles having different distributions; obtaining initial identification information of coffee particles in each test image in the set of test images; and determining final identification information of the coffee particles based on the initial identification information of coffee particles in at least some of the frames of the test images in the set of test images.

The application relates to the technical field of blade monitoring, in particular to a long flexible blade real-time monitoring and fault early warning method, which comprises the following steps: collecting vibration signals of a long flexible blade in a running state, wherein the vibration signals are coupled by multiple factors including aerodynamic load, gravity and centrifugal force; constructing an over-determined equation set containing multi-source excitation characteristics based on a blade dynamics model; decomposing the vibration signals by using a sparse decomposition algorithm to obtain signal decomposition results; solving the over-determined equation set based on the signal decomposition results to obtain modal parameters of each coupled vibration source; and determining a state monitoring result of the long flexible blade according to the modal parameters of each coupled vibration source.

The present application relates to the field of belt material accumulation cleaning, in particular to a belt vibration beating sweeper and a beating amplitude generation method thereof. The belt vibration beating sweeper comprises a mounting hanger, a hoisting connecting rod, a vibration supporting plate and a vibration source. The mounting hanger is arranged above the return belt, the hoisting connecting rod is rotatably connected with the mounting hanger and the vibration supporting plate at two ends respectively, the length of the hoisting connecting rod is greater than the distance from the mounting hanger to the belt and the hoisting connecting rod is arranged obliquely, and the end connected with the vibration supporting plate is close to the downstream of the belt movement. The vibration source drives the vibration supporting plate to make the hoisting connecting rod reciprocate, and the vibration supporting plate is suspended above the belt, and the hoisting connecting rod is connected with the vibration supporting plate in a floating manner. This structure avoids strong restriction of the vibration force, prevents the increase of the local stress of the belt and the extrusion damage. Meanwhile, the vibration supporting plate is in contact with the belt surface, compared with the linear contact of the existing beating roller, the force area is large, the beating force is uniform, the bending stress is small, the damage to the brittle area of the belt can be avoided, and greater beating force can be applied without damaging the belt, so that the materials can be effectively shaken off.

This application discloses a multimodal rain-sensing wiper system for vehicles, comprising: a multimodal sensing module that collects first sensing data characterizing the state of rainwater on the glass surface and second sensing data characterizing the motion state of raindrops in the air; an intelligent control module that fuses the two types of data to generate a fused rainfall feature value and generates a wiping mode command accordingly; and a low-noise execution module composed of vibration-damping composite material and a buffer device that executes the wiping action and suppresses noise. This application solves the problem of low recognition accuracy of a single sensor by fusing optical and radar sensing data from different sources, achieving accurate determination of rainfall intensity; simultaneously, it utilizes the damping properties of the composite material and the buffer device to reduce noise from both the vibration source and the transmission path. Compared with existing technologies, this application improves rainfall detection accuracy and controls operating noise at a low level, significantly improving driving safety and comfort.

The invention relates to a coaxial rotating eccentric vibrator. A hydraulic motor drives two groups of eccentric blocks capable of reversely rotating around the same axis to rotate, and inertia force generated by rotation of the eccentric blocks is synthesized to enable a rotating shaft to generate linear vibration in a certain radial direction. The device is composed of a hydraulic motor 1, a flange plate 2, a box body 3 and an internal excitation part. A shaft output spline hole 17 of the hydraulic motor 1 is connected with a shaft head spline of the rotating shaft 5, and the hydraulic motor 1 is fixed to the box body 3. The flange 2 is fixed at the bottom of the box 3. The tool can be installed on the flange plate 2 to form a vibration tool for use. The vibrator can also be installed on other machinery equipment through the flange plate 2 to be used as a vibration source. The machine is compact in structure, easy to manufacture, concentrated in inertia force and suitable for the field with the requirement for linear vibration of inertia.

The application discloses a kind of vibration device for immunofluorescence method, belong to medical detection device field, the device adopts cavity, vibration unit, cooling device and sound insulation cotton, sound insulation cotton is used to reduce noise in experimental process, cooling device reduces the heat generated due to vibration, avoid the heat generated by vibration to cause the influence to sample;After energization, vibration unit forms a kind of vibration source, the vibration of slide in incubation box in cavity is driven by vibration, and then promote the exposure of fixed antigen / antibody epitope on slide, accelerate and antibody / antigen in incubation sample are combined, shorten incubation time, improve experimental efficiency.

The invention discloses a satellite vibration suppression system and method, a storage medium and a computer program product. The system comprises a passive vibration isolation module used for isolating first vibration generated by satellite vibration source equipment; the active suppression module is used for counteracting second vibration generated by the satellite vibration source equipment; wherein the second vibration is residual vibration except the first vibration isolated by the passive vibration isolation module, and the vibration frequency of the first vibration is higher than that of the second vibration. The technical problem that the effective load performance of a satellite is limited due to the fact that a traditional single passive or active vibration suppression method cannot effectively cover broadband vibration from high frequency to low frequency is solved.