13971results about "Non-rotating vibration suppression" patented technology

The invention relates to the technical field of water quality detection, and discloses a water quality pollutant detection method, system and equipment based on spectral analysis, and the method comprises the following steps: carrying out real-time spectral data acquisition on a water body sample in a vehicle driving process through a multispectral sensor array in a vehicle-mounted water quality detection device; obtaining a water body spectrum three-dimensional data cube; carrying out anti-vibration wavelength calibration and ambient light source interference elimination processing to obtain a preprocessed spectrum data set; performing standard multivariate decomposition processing and horizontal local constraint optimization of a pollutant target wave band on the preprocessed spectrum data set to obtain enhanced feature fingerprint spectrums for different types of water quality pollutants; and inputting the enhanced feature fingerprint spectrum into a deep belief network model to perform pollutant feature matching analysis to obtain various pollutant types and corresponding concentration values in the water body sample, thereby effectively eliminating ambient light changes and other background interferences, not only determining the pollutant types, but also accurately quantifying the concentration values.

The invention relates to a low-frequency vibration isolator with a wide quasi-zero stiffness interval. The low-frequency vibration isolator comprises a bearing platform, a base, a first negative stiffness assembly, a second negative stiffness assembly and a linear vibration isolation assembly. The bearing platform and the base are arranged in parallel and are both provided with bolt holes and limiting holes; a linear vibration isolation assembly is installed between the bearing platform and the base. The first negative stiffness assemblies are symmetrically distributed with the center point connecting line of the bearing platform and the base as the symmetry axis. The top of the first negative stiffness assembly is connected with the bearing platform, and the bottom of the first negative stiffness assembly is connected with the base. The two ends of the second negative stiffness assembly are connected with the two first negative stiffness assemblies correspondingly. The low-frequency vibration isolator has the characteristics of high static rigidity and low dynamic rigidity, the contradiction between the bearing capacity and the vibration isolation performance of a linear vibration isolation system is effectively solved, and the effective low-frequency vibration isolation effect on a vibration-isolated object is achieved while the bearing capacity of the vibration isolator is guaranteed.

The invention belongs to the technical field of cable installation, and particularly relates to a cable suspension damping rack in a tunnel, the cable suspension damping rack comprises a suspension assembly and a clamping assembly, the suspension assembly comprises a flange device and a suspension device, and the clamping assembly comprises an adjusting device and a clamping device; the flange device comprises a flange plate and a fixed anchor rod arranged on the flange plate; the suspension device comprises a T-shaped mounting rod and a connecting rod; an adjusting groove is formed in the upper portion of the T-shaped mounting rod in a penetrating mode, the connecting rod is inserted into the adjusting groove, mounting pieces are symmetrically arranged at the two ends of the connecting rod, mounting piece bodies are L-shaped, and nuts are mounted at the bottoms of the mounting pieces; an extrusion spring column is arranged above the adjusting groove, and the bottom end of the extrusion spring column is mounted on the connecting rod; according to the scheme, the cable suspension damping rack in the tunnel is efficient in damping, convenient to install, stable and durable; vibration energy, including longitudinal displacement, transverse shaking and high-frequency resonance, in the tunnel can be effectively absorbed through a multi-stage composite damping structure of the extrusion spring columns, the corrugated pads and the filling rubber.

The invention discloses a semi-submersible wave energy-wind energy integrated power generation platform and a damping regulation and control method of a damping regulation and control system of the semi-submersible wave energy-wind energy integrated power generation platform. The platform comprises a semi-submersible wind driven generator platform, a wind driven generator set, a wave energy power generation device, an energy storage system, a sea area detection system and the damping regulation and control system. The wave energy power generation devices are divided into two groups on the inner side and the outer side of the platform, each wave energy power generation device comprises a platform inner side wave energy power generation device and a platform outer side wave energy power generation device, and each wave energy power generation device comprises a swing arm floater, a universal hinge, a connecting arm and a damping adjusting module. The semi-submersible wind power generation device and the wave power generation device are combined, and offshore renewable resources are comprehensively utilized; the six-buoy design is adopted, buoyancy is dispersed, stability and safety are improved, and meanwhile space is provided for a wave power generation device; the floaters are symmetrically arranged in a hexagonal shape and carry a damping regulation and control system, and the whole structure is more easily stabilized by adjusting the damping of the floaters in all directions.

The invention discloses a gravimeter active vibration isolation control method, and belongs to the technical field of gravimeter active vibration isolation, and the control method comprises the steps: S1, presetting a three-axis acceleration sensor and a gravimeter bearing platform, and detecting a space vibration signal of the gravimeter bearing platform in real time through the three-axis acceleration sensor; s2, the signal processing unit performs frequency domain decomposition on the space vibration signal; s3, establishing a feedforward control unit, a feedback control unit and a synthesis unit; s4, a multi-degree-of-freedom actuator is preset, and reverse compensation force is applied in the X-axis direction, the Y-axis direction and the Z-axis direction through the multi-degree-of-freedom actuator according to the composite control signal; and S5, the preset state monitoring unit samples the vibration suppression rates in three continuous sampling periods. The high and low frequency vibration components are dynamically divided according to the frequency-band energy accumulation proportion, the vibration interference model is established in combination with the high and low frequency vibration components, and compensation failure caused by model mismatch under complex working conditions is avoided.

This application provides a wind-resistant, stable power generation agricultural-solar hybrid system, including pillars, beams, photovoltaic supports, and photovoltaic panels erected in farmland. The photovoltaic panels are equipped with a buffer mechanism and an overload release device. The buffer mechanism effectively absorbs kinetic energy and reduces the swaying amplitude and speed of the photovoltaic panels through its elasticity, and automatically resets the photovoltaic panels after strong winds. The overload release device protects the photovoltaic panels from damage caused by strong winds. This application overcomes the technical defects of existing static wind-resistant systems, reduces system wind resistance, can withstand super typhoons, provide stable power generation and irrigation, and promote agricultural production.

The invention relates to the technical field of vibration control, and discloses a quasi-zero stiffness vibration isolator imitating an insect jumping foot structure, which comprises a base and a bearing table between which a vertical spring is arranged, the two sets of connecting rod mechanisms are arranged between the base and the bearing table, each set of connecting rod mechanism comprises two lower connecting rods, two upper connecting rods and two middle connecting rods, the two lower connecting rods are hinged to the top face of the base, the two upper connecting rods are hinged to the bottom face of the bearing table, and the two middle connecting rods are distributed in an X shape; two ends of the two middle connecting rods are respectively hinged with the lower connecting rod and the upper connecting rod; the transverse springs are arranged at the hinged positions of the two lower connecting rods and the two middle connecting rods and the hinged positions of the two upper connecting rods and the two middle connecting rods correspondingly. The vibration isolator is simple in structure, small in transverse size, convenient to assemble and disassemble and easy to adjust, quasi-zero-stiffness vibration isolation is achieved through the special mechanical property of the overall structure, vibration energy can be efficiently absorbed, and the vibration isolator has wide application prospects in the field of low-frequency vibration control.

The invention relates to the technical field of excavator bucket rods, and provides a bucket rod composite damping device and an excavator. The device comprises a shell composed of a base, an outer shell and a stress shell; the magneto-rheological buffer device is installed in the shell and composed of a lattice structure made of magneto-rheological elastomer materials and magneto-rheological fluid filled in gaps corresponding to the lattice structure, and a plurality of sound absorption holes are formed in each cell element wall in the lattice structure; the electromagnetic device is located in a containing cavity formed in the lattice structure and is composed of a magnetic core and an electromagnetic coil; the anti-vibration pad and the stress plate are embedded in the top of the shell and are in contact with the stress plate; the damping springs are arranged on the periphery of the shell and fixedly connected between the stress plate and the base; the vibration monitoring module is used for collecting vibration data of the bucket rod in real time and transmitting the vibration data to the intelligent control module, and the intelligent control module is used for adjusting the output magnetic field intensity of the electromagnetic coil according to the vibration data so as to adjust the viscosity of the magnetorheological fluid in real time.

The invention discloses a damping shell easy to assemble and a kitchen waste processor using the damping shell. The damping shell comprises a shell body, an upper end cover is fixedly connected to the upper portion of the shell body, a plurality of supporting cushion blocks are fixedly connected to the upper portion of the bottom end of the shell body, and a plurality of fixing rod pieces are fixedly connected to the periphery of the upper end cover downwards; the top surface of the vibration isolation base is upwards and fixedly connected with hoisting rod pieces corresponding to the fixed rod pieces, and the hoisting rod pieces are respectively fastened and mounted on the corresponding fixed rod pieces through corresponding locking assemblies, so that the vibration isolation base is positioned on the upper side of the supporting cushion block to form suspension mounting; the vibration isolation supporting assembly comprises a rotating plate rotationally installed on the bottom side of the vibration isolation base, the periphery of the rotating plate extends outwards to be provided with supporting parts, and the bottom sides of the supporting parts are fixedly connected to the upper sides of the corresponding supporting cushion blocks in an abutting mode; provided is a vibration reduction and energy absorption device. The vibration reduction effect can be effectively and obviously improved, and the machine core of the kitchen garbage processor can be conveniently installed.

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 relates to the technical field of cable bridges, and discloses a cable bridge with expansion joints, which comprises two cable bridge main bodies, expansion joint main bodies are slidably connected to the outer walls of the two cable bridge main bodies, and three air pressure sleeves are fixedly connected to the tops of the expansion joint main bodies. First air pressure cavities are formed in the inner walls of the three air pressure sleeves correspondingly, air in the first air pressure cavities and the second air pressure cavities is extruded by the extrusion assembly under the influence of the weight of the cable, so that air at the top and the bottom of a piston rod is in a high-pressure state, and when the cable at the main body part of the expansion joint vibrates, generated vibration is transmitted to a supporting plate; by means of compressibility of high-pressure gas on the two sides of the piston rod, vibration generated by the cable is absorbed, the vibration amplitude of the cable is reduced, and the situation that flexible connection between the expansion joint body and the cable bridge body easily causes increase of the vibration amplitude of the cable at the position, large pulling force is applied to the cable at the position, and the cable is easily damaged is effectively prevented.

The utility model discloses a horizontal crusher, which relates to the technical field of processing equipment and comprises a base, vibration motors are symmetrically mounted at the bottom end of the base, a collecting box is mounted at one end of the base, a shell is fixedly connected to the upper end of the base, a feed hopper is mounted at the upper end of the shell, vibration plates are symmetrically mounted at the upper end of the interior of the shell, and a feeding hopper is mounted at the lower end of the shell. The opposite ends of the vibrating plates are provided with vibrating strips, the bottom ends of the vibrating plates are provided with a U-shaped screening cover and a sliding mechanism, one end of the shell is provided with a driving motor, the output end of the driving motor is rotationally connected with a rotating rod through a rotating shaft, and the outer side of the rotating rod is symmetrically provided with crushing hammers; and elastic lock mechanisms are symmetrically installed on the outer sides of the rotating rods, and a dust removal mechanism is installed at one end of the shell. Due to the adoption of the structure, the crusher is convenient for a user to use, and the crushing effect and efficiency are improved.

The invention discloses a centrifugal pump rotor curved surface profile tolerance detection device and method, and relates to the technical field of curved surface profile tolerance detection. The device comprises a base, four conveying belt wheel supports are fixedly installed on the base, two conveying belt wheels arranged in parallel are rotationally installed on the four conveying belt wheel supports, the two conveying belt wheels are in transmission connection through two conveying belts arranged in parallel, and a gap is formed between the two conveying belts; a supporting sliding plate is arranged in the middle of the conveying belt, and the upper surface of the supporting sliding plate is in sliding fit with the conveying belt for supporting the conveying belt; an arch-shaped frame is further fixedly installed on the base, a top clamping electric cylinder and a bottom clamping electric cylinder which are symmetrically arranged are rotationally installed on the arch-shaped frame, and an external expansion extrusion clamping head and an extrusion conical head are fixedly installed at the end of a telescopic rod of the top clamping electric cylinder and the end of a telescopic rod of the bottom clamping electric cylinder correspondingly in a convenient-to-disassemble mode; a three-dimensional laser measuring and scanning assembly used for detecting the curved surface contour of the centrifugal pump rotor is further movably installed on the arch-shaped frame.

The invention discloses a screen structure, an intelligent ground screen, a monitoring method, a medium and a computer product. The stress layer is suitable for being in contact with a target object, the circuit board layer is arranged below the stress layer, the force conducting layer is arranged below the circuit board layer, the force sensing layer is arranged below the force conducting layer, the force sensing layer comprises a pressure sensor, the force sensing layer abuts against the force conducting layer so as to be suitable for monitoring pressure from the force conducting layer, and the force sensing layer is connected with the base. Wherein the stress layer comprises a mask structure and a force conduction structure, the force conduction structure is provided with two opposite ends in the direction from the base to the stress layer, the first end is connected with the mask structure, the second end is connected with the force conduction layer so that the pressure of the mask structure can be conducted to the force conduction layer, the circuit board layer is provided with a through hole, and the force conduction structure penetrates through the through hole. According to the invention, the motion state of the target object can be accurately monitored in real time, and a high-sensitivity and high-precision circuit system can be protected from being damaged in frequent high-load motion detection.

The invention discloses a garbage inspection robot based on wheel type four feet, and belongs to the field of artificial intelligence, the garbage inspection robot comprises an inspection robot main body, the upper surface of the inspection robot main body is provided with a computer assembly, and the left end and the right end of the median line of the upper surface of the inspection robot main body are both provided with inertial measurement units. The inspection robot body can be moved according to four feet, operation in flat and structured road scenes can be completed, the inspection robot can also be suitable for garbage inspection and sweeping operation in steps, corridors, mountain roads and depression scenes, the garbage cleaning efficiency can be improved, and meanwhile the adaptive capacity of the inspection robot body in the complex environment is improved; through the arrangement of the driving rollers, the device can move in a wheel mode in a flat or semi-structured environment; on the ground surface such as a lawn and a slate road, four-foot moving movement is adopted, so that the friction loss generated during movement can be effectively reduced, and the cruising ability of the inspection robot main body is improved.

The invention provides an active and passive combined type universal vibration isolation base and a vibration suppression method.The vibration isolation base comprises a base shell, a friction wall face, a transverse buffering mechanism, a high-strength elastomer and an axial buffering mechanism, the bottom of the base shell is connected with a vibration source, the friction wall face is installed on the inner wall of the base shell, and the transverse buffering mechanism abuts against the inner wall of the friction wall face; the vibration isolation object is connected to the top of the transverse buffering mechanism, the upper portion of the high-strength elastomer is elastically connected with the bottom of the transverse buffering mechanism, the lower portion of the high-strength elastomer is elastically connected with the top of the axial buffering mechanism, and the bottom of the axial buffering mechanism is connected to the bottom of the base shell. The transverse buffering mechanism and the axial buffering mechanism form a passive damping mechanism, and a magneto-rheological body adjusting structure arranged on the transverse buffering mechanism and a friction damping adjusting structure arranged on the friction wall face form an active adjusting mechanism. Through a passive damping mechanism and an active adjusting mechanism, efficient isolation of full-band vibration and multi-direction vibration can be achieved.

The invention provides a quasi-zero-stiffness base and an adjustable quasi-zero-stiffness local resonance super-structure vibration isolation device, belongs to the field of environmental vibration reduction and isolation in traffic engineering and civil engineering, and aims at solving the problems that in the prior art, a spring quasi-zero-stiffness structure is complex in installation structure and poor in structural stability. The device comprises a bottom plate, a plurality of first beams with a positive stiffness effect, a plurality of second beams with a negative stiffness effect and a plurality of regular triangular prisms, the first beam, the second beam, the regular triangular prism and the bottom plate are integrally formed, on one hand, it is ensured that all connecting pieces are in rigid connection, the situation that connecting points affect the stability of the structure is avoided, on the other hand, the assembling process can be simpler, and the assembling efficiency is improved.

The invention discloses a manganese-copper alloy with high damping performance and a preparation method and application thereof. The preparation method comprises the steps that manganese-copper alloy powder is subjected to laser layer-by-layer scanning printing through a laser powder bed melting technology, and then the printed manganese-copper alloy is subjected to direct aging treatment. Obtaining a result parallel to the construction direction by regulating and controlling printing processes such as a laser scanning strategy, a layer thickness, a scanning interval and a substrate temperature; 001gt, 001gt; and the manganese-copper alloy is manufactured through strong texture additive manufacturing. Owing to lt; 001gt, 001gt; the oriented grains have more twin-crystal martensite variants, and twin-crystal martensite is easier to move under the action of external stress, so that the manganese-copper alloy has higher damping performance. The vibration reduction component is prepared by utilizing the special advantages of forming hollow, hollow-out, thin-wall and other complex structures of laser additive manufacturing, combination of manganese-copper damping alloy material vibration reduction and structure vibration reduction can be effectively achieved, and the manganese-copper damping alloy material can be widely applied to the field of vibration reduction and noise reduction of satellites, ships, rail transit, high-precision machine tools and other high-end equipment.

The invention discloses a disc type negative stiffness damper which comprises a base plate, a sliding block is fixedly installed on the base plate, and a rack-shaped sliding rail is horizontally installed on the sliding block in a sliding mode. A large gear and a small gear are rotationally installed on the base plate through a supporting structure, one position of the large gear is externally meshed with the small gear, the other position of the large gear is externally meshed with a rack on the sliding rail, the center of the small gear is fixedly connected with a small gear shaft, and a damper is further fixedly connected to the small gear shaft. A first connecting piece is arranged on the edge of the large gear, a second connecting piece is arranged on the base plate, the first connecting piece is connected with one end of a pretension spring, the other end of the pretension spring is connected with the second connecting piece, and the first connecting piece, the second connecting piece and the pretension spring form a negative stiffness mechanism. The negative stiffness effect is generated by the pre-tensioning spring, and compared with a pre-pressing spring, the pre-tensioning spring cannot be bent; and meanwhile, compared with the magnetic negative stiffness, the magnetic negative stiffness has a larger stroke.

The present invention relates to a compaction monitoring device and method that integrates 3D scanning and image perception. The device comprises a sensing component comprised of a 3D road surface texture scanning module, a camera, a vibration damping module, and a locator; a data analysis component, which performs image positioning, image stitching, time synchronization, and calculation of a compaction index based on texture features; and a control strategy component, which controls the number of compaction attempts based on the surface distribution of the compaction index. Compared to existing technologies, this invention introduces a new information source and evaluation basis for road compaction, enabling dynamic, real-time monitoring and feedback control of compaction levels, improving the quality of road construction projects and enabling compaction monitoring based on 3D scanning and image perception.

The invention relates to the technical field of intelligent control, and discloses a magneto-rheological damper regulation and control method and system based on machine learning, and the method comprises the following steps: S1, collecting the multi-dimensional state parameters of a system where a magneto-rheological damper is located in real time, the multi-dimensional state parameters comprising a vibration excitation parameter, a damper output parameter and an environment influence parameter; s2, a magneto-rheological damper dynamic characteristic mapping model based on deep learning is constructed, the mapping model takes multi-dimensional state parameters collected historically and corresponding control currents as training samples, and key characteristic weights are strengthened through an attention mechanism; and S3, based on the currently collected multi-dimensional state parameters. The time-varying hysteretic characteristics of the magnetorheological fluid are accurately modeled through an improved LSTM network fused with an attention mechanism, and a collaborative decision-making mechanism of reinforcement learning and model prediction control is combined, so that the problems of nonlinearity and time-varying characteristics which are difficult to deal with by a traditional control method are effectively solved.

A bicycle component for an at least partially muscle-powered bicycle, including a seat post device adjustable between two positions, with two support members telescopically movable relative to one another in the axial direction namely, a first support member and a second support member. The bicycle component includes an anti-twist protection with a clamping element that non-rotatably couples the support members together, and which is displaceably received in a guiding groove, so that rotational movement of the first support member relative to the second support member can be at least partially blocked. The anti-twist protection includes a spline device with a spline unit that can be pressed against the clamping element in the axial direction. By pressing the clamping element and the spline unit together, the clamping element and / or the spline unit can be moved relative to the guiding groove in the peripheral direction.

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 discloses an adjustable support frame for solar photovoltaic power generation construction, and belongs to the technical field of solar photovoltaic power generation. The photovoltaic panel connecting assembly comprises a photovoltaic panel assembly and an installation connecting assembly. A buffer spring is damped; and a correction protection mechanism. Through the combined design of the sliding frame and the transparent glass, direct damage of an outdoor severe environment to the surface of the photovoltaic panel can be avoided, illumination is not shielded, and normal power generation of the photovoltaic panel is guaranteed; various connection modes (detachable, sliding and rotating) of the sliding frame are suitable for different use scenes, and installation, cleaning and maintenance are convenient; according to the correction protection mechanism, through linkage of a volute spiral spring and a limiting assembly, when faults such as breakage of a connecting rod occur, a clamping correction plate can be automatically driven to fix a lifting sleeve, the position is locked through a lifting limiting rod, the photovoltaic panel is prevented from being toppled and damaged, meanwhile, the angle can be temporarily corrected to maintain the basic power generation function, and losses caused by sudden faults are reduced.

Disclosed are an intelligent vibration isolator and a control method thereof. The intelligent vibration isolator includes a base, a vibration isolation mechanism disposed inside the base, and a controller; the base includes a bottom plate and a supporting sleeve disposed on the bottom plate; the vibration isolation mechanism includes a load platform, a supporting platform, a magnetorheological elastomer and an electromagnet which are sequentially and coaxially disposed from top to bottom; the vibration isolation mechanism is provided with at least three negative stiffness mechanisms that are uniformly distributed in a circumferential direction of the supporting platform; a strain detection device is disposed on an outer wall of the magnetorheological elastomer; and the controller adjusts and controls a magnitude of current of the electromagnet according to a received strain magnitude to control vertical stiffness of the isolator, and make the intelligent vibration isolator always be in a quasi-zero stiffness state.

The invention provides an innovative design of a corrugated pipe damper integrated on a sliding main bearing aiming at the problems of transmission system abrasion and fatigue damage caused by vibration energy accumulation of the wind power main bearing under a complex wind load, and belongs to the technical field of wind power generation equipment. A traditional main bearing damping structure is low in energy absorption efficiency, insufficient in dynamic response and difficult to effectively suppress vibration. Through collaborative design of a corrugated pipe multi-stage laminated structure and a fluid energy dissipation channel, a composite mechanism for dynamically dissipating vibration energy is formed. The core of the damping device is composed of a corrugated pipe assembly, damping cavities and a main shaft adaptive structure, impact energy is absorbed through axial flexible deformation of the corrugated pipe, vibration attenuation is achieved in combination with reciprocating flowing of damping fluid in the multiple cavities, and low-frequency swing and high-frequency harmonic waves of a main bearing are synchronously restrained. According to the design, the bearing capacity is guaranteed, vibration transmission is remarkably reduced, the service life of the main bearing is effectively prolonged, the operation reliability of a unit is improved, and the damping requirement of a core transmission system of a high-power wind turbine generator is met.

According to the present invention there is provided an active vibration control system comprising: an electromagnetic actuator and a control element, the electromagnetic actuator being operable to apply a force on a base structure to which the active vibration control system is attachable such that vibrations of the base structure are actively controllable by the application of said force, wherein the electromagnetic actuator and control element are relatively moveable such that the active vibration control system has at least two modes of vibration, and wherein movement of the electromagnetic actuator causes movement of at least a part of the control element.

The invention discloses a valve body structure for vehicle thermal management, and belongs to the technical field of vehicle thermal management, the valve body structure comprises a vehicle thermal management valve body, the bottom of the vehicle thermal management valve body is provided with a buffer mechanism, and the top of the vehicle thermal management valve body is provided with a filter screen detection mechanism; according to the invention, the filter screen detection mechanism is arranged, impurity particles in cooling liquid are efficiently intercepted through the filter screen, the abrasion and blockage risks of impurities to an internal channel and key parts of the valve body are remarkably reduced, and continuous cleaning of the filter screen is realized in cooperation with the automatic cleaning function of the anti-blocking brush driven by the guide vane; flow blockage and system performance reduction caused by dirt accumulation of a traditional filter screen are avoided, the service life of equipment is prolonged, in addition, the arranged extrusion ring and extrusion block early warning mechanism can monitor the blockage state of the filter screen in real time, maintenance personnel are reminded in time by triggering an alarm, and system faults and cooling efficiency reduction caused by blockage are avoided.