1245 results about "Vibration isolation" patented technology

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 a four-body coupling vehicle base vibration noise prediction optimization method and system, and relates to the technical field of rail transit operation and maintenance optimization, and the method comprises the steps: obtaining a vehicle base multi-physics field correlation monitoring data set; carrying out system level assembly in a multi-physics field co-simulation environment to generate a coupled system state parameter matrix; generating sound ray bending trajectory data; loading the vehicle operation condition time sequence data to a wave equation solver, and outputting vibration noise propagation characteristic field distribution data; building a network topology structure to form a prediction model, and executing a back propagation algorithm to train network parameters to a convergence state; designing a vehicle scheduling scheme chromosome coding structure to generate a candidate solution population; and performing selection, crossover and variation genetic operations on the primary solution set, and outputting a vehicle base operation and maintenance scheduling real-time optimization scheme. The method has the beneficial effects that the precision and generalization ability of vibration noise prediction in the future time period are greatly improved, and the fundamental transformation from passive vibration isolation treatment to active prediction optimization is realized.

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 industrial environmental protection, in particular to a double-hearth lime kiln low-emission collaborative dust removal system and a control method. The control method comprises the steps that a flue gas sensing module collects real-time flue gas parameters and kiln body working condition data; the working condition linkage regulation and control unit dynamically adjusts operation parameters of the dust removal equipment through a fuzzy PID working condition matching algorithm; the regional collaborative dust removal assembly performs differential dust removal according to flue gas characteristics and treatment requirements of different dust raising points, and flue gas flow guide is performed through a double-hearth time sequence valve group during kiln body switching; the noise elimination and vibration isolation cooperation unit adjusts the noise elimination amount and the vibration isolation damping according to the rotating speed of the draught fan and controls noise and vibration. The tail gas deep purification unit evaluates the dust removal state through a flue gas and dust coupling model, carries out deep treatment on the dedusted tail gas and controls the tail gas emission concentration; the anti-blocking optimization unit carries out cooperative anti-blocking through dynamic rapping and airflow purging based on historical operation data and real-time working conditions. Therefore, the problems of poor dust removal stability, high operation energy consumption and the like in the prior art are solved.

The invention relates to the technical field of environmental vibration reduction and isolation control, and discloses a vibration isolation pile, a row pile structure and a construction method of the vibration isolation pile, the vibration isolation pile comprises sleeves arranged between a subway tunnel and a basement, at least two sleeves are sequentially nested from outside to inside, and an annular filling space is formed between every two adjacent sleeves; a core filling space is formed in the inner cavity of the innermost sleeve; the annular filling space and the core filling space are divided into a plurality of vibration isolation sections in the height direction of the annular filling space and the core filling space, and each vibration isolation section corresponds to a soft soil layer or a hard soil layer on the outer side; in each vibration isolation section, the annular filling space and the core filling space are each internally provided with a rigid vibration isolation layer or a flexible vibration isolation layer, and the rigid vibration isolation layers and the flexible vibration isolation layers are alternately arranged in the radial direction of the casing pipe. The technical problems that in the prior art, the vibration isolation effect of a vibration isolation pile is the same, vibration isolation cannot be conducted according to vibration propagation characteristics and vibration isolation requirements of different soil layers, and the vibration isolation effect of the vibration isolation pile is poor are solved.

The embodiment of the invention discloses a damper, a vibration isolation device and semiconductor equipment, relates to the technical field of vibration isolation, and solves the problem that a measurement frame in existing high-precision semiconductor equipment cannot realize good vibration isolation and good instantaneous stability at the same time. The damper comprises a first fixing support, a second fixing support, a supporting structure, at least one damping structure and at least one pre-tightening adjusting structure. The supporting structure is connected with the first fixing support or the second fixing support. Any damping structure comprises at least one shape memory alloy damping wire. All the shape memory alloy damping wires in any damping structure are connected with the first fixing support. In any damping structure, at least one shape memory alloy damping wire diffracts on the supporting structure in the opposite direction and is connected with the second fixing support. And the at least one pre-tightening adjusting structure is connected with the shape memory alloy damping wire in the at least one damping structure. And the pre-adjusting structure adjusts the pre-tightening force of the corresponding shape memory alloy damping wire.

The invention discloses a flexible three-degree-of-freedom platform with attitude adjustment, impact resistance and vibration isolation functions, and relates to the technical field of heavy-load precision assembly and attitude adjustment, the flexible three-degree-of-freedom platform comprises a fixed base, a movable platform and a plurality of branch chains connected between the fixed base and the movable platform, the branch chains are flexible branch chains, and each flexible branch chain comprises a composite flexible hinge, a plurality of flexible connecting rods and a plurality of flexible connecting rods, the two ends of the composite flexible hinge are connected with the fixed base and the movable platform respectively, and the composite flexible hinge comprises a metal core and a composite material jacket wrapping the metal core; the transmission rod is in transmission connection with the composite flexible hinge; the hydraulic buffers are integrated in the flexible branch chains and used for absorbing impact loads; the buffering assembly is installed on the fixed base and used for buffering the movable platform through the flexible branch chains; by arranging the composite flexible hinge, the strength of metal and the anti-fatigue characteristic of a composite material are combined, the fatigue problem of a metal hinge is avoided, the service life of the platform under the heavy-load working condition is prolonged, and the reliability of the platform under the heavy-load working condition is improved.

Disclosed is a multi-modal and multi-degree-of-freedom piezoelectric active vibration isolation platform and a working method therefor. The piezoelectric active vibration isolation platform includes an upper platform, a lower platform, a control module, and four vibration isolation modules, where the vibration isolation module includes a passive vibration isolation unit and an active vibration isolation unit; the passive vibration isolation unit includes an upper connector, a lower connector, a cross Hooke hinge, and a first acceleration sensor; the active vibration isolation unit includes a fixed beam, a pre-tightening bolt, a second acceleration sensor, and a driving component; the platform can provide active vibration isolation for the longitudinal (axial) vibration and the bending vibration in any radial direction of a vibration isolation object, and has the advantages of fast response, resistance to electromagnetic interference, and light weight.

The embodiment of the utility model provides an objective lens damping device which comprises an objective lens damper, a flexible hinge structure is adopted in the objective lens damper, and the flexible hinge structure provides elastic support when external vibration or temperature changes so as to buffer vibration transmission and reduce stress caused by a thermal expansion effect; the upper layer of the objective lens damper is an objective lens contact end; the lower layer is a frame contact end and is provided with an interface connected with a frame; the middle layer is of a flexible hinge structure, necessary flexible supporting is provided, and therefore vibration isolation and thermal stress buffering are achieved. According to the utility model, the objective lens damper is arranged between the objective lens and the frame, so that the objective lens and the frame are flexibly connected through the scalability of the flexible hinge instead of being rigidly connected through a screw, a better protection effect on the objective lens is achieved, and the designed objective lens damper belongs to passive vibration reduction, so that the service life of the objective lens damper is prolonged. Only through mechanical design, the vibration isolator is easy to achieve, and vibration isolation and thermal decoupling are well achieved.

The invention discloses a vibration isolation building horizontal force transmission device, belongs to the technical field of civil engineering, and aims to solve the problems of an existing underground structure horizontal force transmission device. Comprising a mirror surface stainless steel plate and a steel box, a plurality of inner anchor bars are arranged on one side of the mirror surface stainless steel plate, a sliding block set is arranged on the other side of the mirror surface stainless steel plate, a plurality of outer anchor bars are arranged on one side of the steel box, a notch is formed in the other side of the steel box, a retainer is arranged in the notch, and the retainer and the stainless steel plate are oppositely arranged; a vertically-arranged sliding groove set and a plurality of segment-shaped notches are formed in the end face of the side, facing the stainless steel plate, of the retainer, the balls are arranged in the notches in a one-to-one correspondence and rolling mode and abut against the stainless steel plate in a rolling mode, the sliding block set is in sliding fit with the sliding groove set, the inner anchor bar is embedded in the edge beam, and the outer anchor bar is embedded in the outer wall. Vertical sliding is allowed between the outer force transmission piece and the inner force transmission piece, horizontal force transmission can be achieved, and the vibration reduction and isolation effect of the vibration isolation system is not affected.

A bicycle seat suspension can include one or more movable body members. The one or more movable body members can be configured to be operatively connected to a bicycle saddle. The one or more movable body members can be configured to change configuration when a load is applied to the bicycle saddle. The bicycle seat suspension can also include a vibration isolator. The vibration isolator can be configured to exhibit a non-linear stiffness profile including a region of quasi-zero stiffness. The vibration isolator can be operatively positioned such that, when the one or more movable body members change configuration responsive to a load being applied to the bicycle saddle, the one or more movable body members can engage the vibration isolator. As a result, the vibration isolator can isolate a person seated on the bicycle saddle from vibrations transferred through the bicycle saddle.

The invention discloses a vibration isolation support parameter dynamic correction method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining the vibration monitoring data of a building structure, carrying out the modal recognition based on the vibration monitoring data, obtaining the actual measurement modal parameters of the building structure, building a building structure finite element model containing a vibration isolation support, and carrying out the dynamic correction of the vibration isolation support. The vibration isolation support is simulated in a building structure finite element model by using a support unit with an initial rigidity parameter set according to a preset standard, the actual rigidity parameter of the vibration isolation support is inversely identified by adjusting the rigidity parameter value of the support unit and performing finite element calculation based on an actually measured modal parameter as a target, and the actual rigidity parameter of the vibration isolation support is calculated according to the actual rigidity parameter of the vibration isolation support. And establishing a time-varying stiffness model of the vibration isolation support according to the actual stiffness parameter and the change rule of the actual stiffness parameter along with time, and dynamically updating the stiffness parameter of the support unit in the building structure finite element model by using the time-varying stiffness model to obtain the updated stiffness parameters at different time points so as to predict the performance degradation trend of the vibration isolation support.

The invention discloses an optical path active vibration isolation system used in an in-situ measurement environment and an automatic calibration method, and relates to the technical field of in-situ measurement. The optical path active vibration isolation system comprises a measurement interferometer and a reference interferometer. The measurement interferometer is illuminated by a white light source through a tunable filter, the tunable filter is used for filtering light emitted from the white light source and selecting a set wavelength, so that the camera generates an interferogram generated only by the set wavelength, and light with different wavelengths sequentially passes through the tunable filter, so that the camera captures a series of interferograms with different wavelengths; the absolute optical path difference is calculated in real time by analyzing the interferogram; the reference interferometer and the measurement interferometer share the same optical path, are illuminated by an infrared super light emitting diode, and are used for observing and compensating environmental noise. According to the invention, the problem of noise interference measurement in application scenes such as large-scale manufacturing workshops is solved.

The invention relates to the technical field of unmanned aerial vehicles, in particular to a fixing support for a camera carried by an unmanned aerial vehicle and the unmanned aerial vehicle. The lower module comprises a bearing plate and a support main body, the bearing plate is arranged on the upper module, the support main body is arranged on the bearing plate, and the support main body is used for bearing a camera and adjusting the position of the camera; the adjusting module comprises a supporting assembly, a damping assembly and an adjusting assembly, the supporting assembly is arranged on the support body, the adjusting assembly is arranged on the bearing plate, the damping assembly is connected with the supporting assembly and the adjusting assembly, and the adjusting assembly is used for driving the damping assembly to move on the bearing plate. Therefore, the acting force arm of the damping assembly is changed. The vibration isolator has the effect of improving and considering the high-frequency vibration isolation performance and the low-frequency anti-interference performance under different working conditions.

The invention relates to the technical field of head-up display optimization, in particular to an operation noise control method and device for a vehicle-mounted head-up display, and the method comprises the steps: carrying out the bench noise and vibration testing of a target vehicle-mounted head-up display, so as to collect the body operation noise and vibration data in a bench state; the body operation noise and vibration data in the rack state are compared with a preset threshold value, and under the condition that the body operation noise and vibration data in the rack state are larger than the preset threshold value, motor or vibration isolation optimization is conducted on the target vehicle-mounted head-up display; and under the condition that the body operation noise and the vibration data in the rack state are smaller than a preset threshold value, performing a whole vehicle vibration test on the target vehicle-mounted head-up display to collect vibration data in the whole vehicle state, and optimizing the target vehicle-mounted head-up display according to the vibration data in the whole vehicle state. Therefore, noise generated in the self-checking process of the HUD assembly is effectively reduced, and the sound quality of the whole vehicle is improved.

The invention discloses a longitudinal bending composite type six-degree-of-freedom piezoelectric active vibration isolation platform and a working method thereof. The vibration isolation platform adopts a modular structural design, a vibration isolation connecting platform and a base platform are sequentially arranged from top to bottom and are connected through four uniformly distributed vibration isolation modules, and each vibration isolation module forms a multi-stage vibration transmission structure through a fixed base, a transducer base, a piezoelectric transducer, an amplitude-change pole, a pre-tightening bolt and a small flexible hinge. The control module collects feedback signals of a first acceleration sensor arranged on the vibration isolation connecting platform and feedforward signals of a second acceleration sensor arranged on the base platform, and outputs 12-channel control signals to the piezoelectric transducers of the vibration isolation modules after signal processing. The piezoelectric transducer is driven to generate a composite motion mode of longitudinal vibration and multidirectional bending vibration, and active suppression of longitudinal vibration and radial bending vibration in any direction of a vibration isolation object is achieved. The device has the advantages of multi-degree-of-freedom vibration isolation, compact structure, lightweight design, independent control, high stability and the like, and has important application value in the fields of space reflecting mirrors, micro-nano manufacturing equipment vibration control and multi-degree-of-freedom vibration isolation systems.

The invention belongs to the technical field of building vibration isolation, and particularly relates to a vibration isolation construction method for an upper building of a subway tunnel. The method comprises the following steps that the form and size of a building foundation and the relative position of the building foundation and a tunnel are surveyed; according to the obtained vibration data, the vibration response characteristics of the building are analyzed, the main vibration frequency range and the vibration transmission path are determined, the influence degree of the existing vibration level on the safety of personnel, equipment and structures in the building is evaluated, and a targeted vibration isolation scheme is formulated according to the analysis and evaluation result; according to the formulated vibration isolation scheme, appropriate vibration isolation materials and equipment are purchased; a vibration isolation device is installed between the building foundation and the structure; after the vibration isolation device is installed, micro-vibration actual measurement is conducted on the building again, vibration data before and after the vibration isolation device is installed are compared, whether the vibration isolation effect reaches an expected target or not is evaluated, and if the vibration isolation effect is not ideal, reasons are analyzed, and a vibration isolation scheme is adjusted and optimized till the satisfactory vibration isolation effect is achieved. The invention provides a vibration isolation construction method for an upper building of a subway tunnel.

The invention relates to the technical field of grain loss monitoring, in particular to a wheat harvesting loss monitoring system and method, and the system comprises an unmanned aerial vehicle monitoring module, a multi-mode sensor array, a signal processing module, an intelligent control module and a man-machine interaction terminal. The unmanned aerial vehicle monitoring module is used for scanning a field parcel, identifying a lodging area and a high-density area and generating a loss risk thermodynamic diagram, the loss risk thermodynamic diagram is imported into a harvester navigation system, and the high-risk area is harvested preferentially; the multi-mode sensor array comprises a piezoelectric grain sensor and an image sensor; the piezoelectric type grain sensor is mounted at the tail part of the cleaning sieve, adopts a vibration isolation device (such as a rubber pad) to reduce mechanical vibration interference, and detects a grain impact signal through a piezoelectric element; the image sensor is arranged on a header and a threshing outlet and is used for identifying missed cutting of wheat ears and damaged grains based on a deep learning algorithm; the intelligent control module comprises a loss rate calculation unit and a parameter optimization unit; the precision and the real-time performance are improved.

The invention discloses a device for ultrasonic-assisted additive manufacturing of a metal workpiece, and relates to the field of laser additive manufacturing, the device comprises a circular base plate, a plurality of transducers, a synchronous stretching mechanism, a supporting box, a vibration isolation mechanism, a bearing air cylinder, a first driving motor and an ultrasonic generator, the supporting box is rotationally installed on the vibration isolation mechanism, the first driving motor is used for driving the supporting box and the circular base plate fixed to the supporting box to rotate, and the bearing air cylinder is installed on the equipment base and located on the inner side of the vibration isolation mechanism. The piston end of the bearing air cylinder penetrates through the supporting box and then is connected with the synchronous stretching mechanism through a thrust bearing, the energy converter is installed at the movable end of the synchronous stretching mechanism through a floating constant force connector, and the energy converter is connected with an ultrasonic generator through a high-frequency coaxial cable. The mechanical property of the annular rotary part during laser additive manufacturing can be improved by synchronously changing the position of the transducer.

The invention discloses a self-adaptive vibration suppression vortex shedding flowmeter and a method. The self-adaptive vibration suppression vortex shedding flowmeter comprises a flowmeter shell, a pipe connecting flange, a vortex shedding generator and a piezoelectric sensor, the piezoelectric sensor is embedded into the damping device, the damping device restrains measurement vibration of the piezoelectric sensor, the free end of the piezoelectric sensor is connected with a detection probe, and the detection probe prevents a medium in a flow field from making contact with the root of the detection probe through a joint ring; an inner cavity is formed in the vortex street generating body, and a temperature sensor is integrated in the inner cavity to sense the temperature of fluid flowing through the vortex street generating body in real time; according to the invention, the temperature sensor is integrated in the vortex street generator, so that accurate sensing and real-time compensation of the temperature of a core flow field are realized; multi-stage vibration isolation is constructed through the damping device, the vibration isolation pad, the damping device protection shell and the top base at the same time, and vibration interference is reduced. Due to the optimal design of the detection probe, the durability is improved, and the adverse effect of vibration on signals can be reduced; and the applicability in a complex environment and the reliability of long-term operation are obviously enhanced.

The invention discloses an optical thermostat with comprehensive vibration reduction and low-temperature in-situ displacement functions, which adopts upper and lower opposite vibration absorbers and a large-mass base to realize first-order to second-order inertial vibration absorption, and further realizes thorough decoupling with an optical platform in a suspension type non-contact manner, and the vibration transmissibility can be reduced to be less than 10%. Resonant frequencies of two systems (a sample table system and a cold head system) are designed to achieve vibration decoupling. The technical problems that in the prior art, the high-grade vibration isolation capacity is insufficient, refrigerator noise is easily coupled to a measuring light path, the low-temperature in-situ precision displacement capacity is lacked, and the contradiction between heat isolation, convenience and cost is difficult to balance can be solved. Under the support of a conventional GM refrigerator, the comprehensive requirements of ultralow basic vibration, strong decoupling of a measurement light path, low-temperature in-situ micron-sized displacement, convenient sample replacement and efficient refrigeration / thermal control are met at the same time.

The invention provides a direct disturbance suppression method for a vibration isolation system based on driving force feedforward and linear active disturbance rejection control, and belongs to the technical field of active vibration isolation. The problems that existing active control methods such as feed-forward control and iterative learning control are limited by model dependence, nonlinear adaptation is poor, and aperiodic disturbance processing capacity is weak are solved. The method comprises the steps that a dynamic model of a vibration isolation system is established, the vibration isolation system comprises a vibration isolation platform and a motion platform, and the dynamic model is used for quantifying direct disturbance force caused by motion of the motion platform; a feedforward compensator is designed, and feedforward compensation force is generated in real time according to a motion instruction of the motion platform; introducing a linear active disturbance rejection controller; and superposing the feed-forward compensation force with a compensation force generated by the linear active disturbance rejection controller to obtain a total compensation force, and applying the total compensation force to the vibration isolation system to realize disturbance suppression. The method is mainly used in the field of precision manufacturing and measurement.

The invention belongs to the technical field of active vibration isolation, and particularly discloses an active vibration isolation method and system based on prediction and adaptive control. Comprising the following steps: carrying out multi-degree-of-freedom dynamic modeling on a vibration isolation system, taking the pose of a load as system output, taking the control quantity of an execution mechanism as system input, and uniformly expressing unknown dynamics caused by structural nonlinearity and disturbance as a nonlinear term; constructing an adaptive neural network state observer based on the kinetic model, and estimating a state which cannot be directly measured; the method comprises the following steps: acquiring historical operation data of a vibration isolation system, preprocessing the data, constructing an input time sequence and an output time sequence, and training a long-short-term memory neural network prediction model to generate a prediction signal representing future position information; and designing an adaptive control law according to the state estimation result and the prediction signal, obtaining a feedback control quantity, and superposing the feedback control quantity with a feedforward control quantity obtained based on the prediction signal to form a control instruction for driving an execution mechanism.

The invention discloses a digital twinning-based vibration isolation trench vibration reduction effect virtual simulation method. The method comprises the following steps of 1, constructing a virtual simulation data set; 2, constructing a three-dimensional digital twinborn model, and completing spatial discretization and physical parameter configuration; 3, performing wave field propagation simulation on the three-dimensional digital twinborn model by using a finite difference time domain method; 4, constructing an objective function and calculating to obtain an objective function value; step 5, constructing a jump structure optimizer; sixthly, reverse optimization is conducted on the target function through a jump structure optimizer, and optimized vibration isolation trench design parameters are output; 7, updating the three-dimensional digital twinborn model, and repeatedly executing the step 3 to the step 6 until the target function meets a preset convergence condition; and 8, outputting an optimal vibration isolation trench design parameter combination, and generating a vibration response distribution diagram. According to the method, digital twin modeling and a jumping structure optimizer are fused, and virtual simulation and optimization of the vibration reduction effect of the vibration isolation trench are achieved.

The invention relates to a laser interference surface type measurement method using random mechanical disturbance for resolving. The method comprises the following steps: acquiring an interference image of a measured element by using a surface type measurement device based on laser interference; applying random mechanical disturbance to the surface type measuring device to cause the change of the relative pose between the reference mirror and the measured element so as to acquire N frames of interference images in different disturbance states; and processing the acquired interference images through a natural phase decoding algorithm to obtain the surface topography of the measured element. Compared with the prior art, high-precision measurement of the surface type of the measured element can be realized without vibration isolation equipment and a high-precision phase shifter, and the method has the advantages of low cost, low system complexity and high adaptability.

The application relates to the technical field of shaped steel column, in particular to a shaped steel column structure capable of shock isolation, which comprises a column body assembly, a shock isolation assembly and a connecting assembly; the column body assembly comprises a cross plate and four groups of connecting plates connected to the cross plate, the top of the cross plate is provided with a cross groove, the bottom of the cross plate is provided with a cross mounting groove, the connecting assembly capable of being arranged in the cross groove and the cross mounting groove is arranged in the cross groove, the shock isolation assembly is arranged at the bottom of the cross plate, the shock isolation assembly comprises a protection box and a mounting plate, X-direction sliding buffer pieces and Y-direction sliding buffer pieces are arranged in the protection box; the X-direction sliding buffer pieces and the Y-direction sliding buffer pieces are matched in the application and can move within a certain range, the influence of external vibration on the shaped steel column as a whole is reduced, the influence of passive stress of the building system is reduced, and the adjacent column body assemblies can be stably spliced.

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.

The utility model relates to the technical field of track structures, in particular to a frame type embedded track structure which comprises a base body, a transverse groove is formed in the base body, a noise reduction mechanism is arranged in the base body, the noise reduction mechanism comprises a vibration isolation supporting plate, the vibration isolation supporting plate is fixedly connected to the top of the inner side of the transverse groove, and the vibration isolation supporting plate is fixedly connected to the top of the inner side of the transverse groove. The top of the vibration isolation supporting plate is fixedly connected with a damping rod, the outer wall of the damping rod is sleeved with a spring, the top of the damping rod is fixedly connected with an elastic plate, the top of the elastic plate is fixedly connected with a rubber pad, the top of the rubber pad is fixedly connected with a boss, and the back of the boss is fixedly connected with a cross beam. The vibration isolation supporting plate is used for isolating vibration, the rubber pads are used for buffering and supporting, the two transverse grooves are formed in the left side and the right side of the interior of the base body, and the train noise can be reduced when a train passes through the train noise reduction device, so that the situation that the life of residents is affected due to the fact that the train noise is too large is avoided.

The utility model belongs to the field of equipment vibration isolation technology especially relates to a modularization instrument frame vibration isolation platform, including support column one, table board one and roof etc.

This utility model discloses a vibration device bracket and electronic device. The vibration device bracket includes: a bracket comprising a first accommodating cavity, a handle and a limiting block disposed on the top of the first accommodating cavity, and multiple fixing posts and multiple elastic arms disposed on both sides of the first accommodating cavity, the first accommodating cavity accommodating the vibration device; a top cover comprising a second accommodating cavity for accommodating the bracket, the second accommodating cavity having a first clearance hole corresponding to the position of the limiting block; and multiple vibration isolation elements, each having a first part and a second part, the first part being disposed between the bracket and the vibration device, and the second part being disposed between the top cover and the bracket. This utility model's vibration device bracket, on the one hand, utilizes vibration isolation elements to change the rigid connection between the vibration device and the bracket, and between the bracket and the top cover, into an elastic connection, thereby isolating or reducing the transmission of vibration energy; on the other hand, it utilizes the yielding deformation of the elastic arms on the bracket to absorb and dissipate vibration energy, reducing the impact of the vibration device's vibration on the chassis body.