126 results about "Body vibration" patented technology

The invention discloses a loss tuning method of a power transformer, which is applied to a transformer body sleeved with a winding and comprises the following steps: applying scanning current excitation containing fundamental waves and harmonic waves to the winding, synchronously acquiring a body vibration signal and converting the body vibration signal into a frequency spectrum; extracting a formant from the frequency spectrum, matching the formant with a theoretical electromagnetic force wave and a structure inherent frequency library, and identifying a coupling formant to be optimized; aiming at each formant, installing a vibration exciter in a corresponding area, sending out an anti-phase periodic pulse force, and dynamically and finely adjusting a pulse force parameter by monitoring a vibration response in real time and taking equivalent mechanical impedance minimization as a target; when the optimal damping state is achieved, the vibration exciter output rod is locked, and static pre-tightening force is formed; and after all formants are adjusted and optimized in sequence and the prestress is locked, final pressing and fixing of the transformer body are completed in the state that the pretightening force is kept. According to the invention, the dynamic loss source of the individual transformer can be actively inhibited and cured before assembly and curing, the operation loss and noise are effectively reduced, and the structural stability is improved.

The invention discloses an intelligent helmet control system based on an IMU (Inertial Measurement Unit), particularly relates to the field of riding monitoring, and is used for solving the technical problems that an existing intelligent helmet is high in collision misjudgment rate under strong road surface vibration and complex riding actions and is difficult to stably trigger a reliable rescue process. A helmet inertial measurement unit and a reference inertial measurement unit are respectively arranged on a helmet and a vehicle structural member, coordinate calibration and time synchronization are carried out, and a road vibration compensation model is constructed by using a frequency domain analysis result of the reference inertial measurement unit in a sliding time window. Road vibration and vehicle body vibration are separated from signals of the helmet inertial measurement unit, residual acceleration and angular velocity characteristics representing relative movement of the head are obtained, an accident confirmation signal is generated based on multi-threshold joint judgment, and a communication unit and a vehicle control interface are linked for execution.

The invention discloses a digital audio processing system based on a DSP, and relates to the field of digital audio processing, and the system comprises an acquisition module which is used for capturing vehicle body vibration sound waves, environment incoming noise and in-cabin original audio signals, and generating a multi-dimensional acoustic data stream through voiceprint feature extraction so as to output an original sound signal matrix; the analysis module is used for mapping the original sound signal matrix to a phase space, extracting singular attractor features of noise evolution through a chaos theory, and generating a noise dynamic model; according to the method, various sound waves can be accurately captured and converted into multi-dimensional data, deep analysis and targeted counteracting of noise are achieved on the basis, meanwhile, an acoustic adjustment scheme matched with the environment in the cabin can be generated, the acoustic environment can be dynamically optimized in combination with the physiological state of passengers, and potential noise is pre-judged in advance for suppression.

The invention belongs to the technical field of equipment state monitoring, and discloses a relay state monitoring and diagnosis method and system. Vibration time domain signals of all monitoring points in the working process of a relay are collected, a time delay characteristic matrix is constructed through segmented cross-correlation operation, and a near-field sound source candidate area is analyzed and recognized in combination with the spatial divergence of a time delay gradient vector field. A sound-vibration coupling propagation model is introduced, near-field sound source excitation and structure conduction vibration components are distinguished, multi-component signal decoupling is realized through spatial constraint and frequency domain sparsity constraint, and a relay body vibration signal is effectively separated. The method comprises the following steps: performing time-frequency decomposition on a body vibration signal, extracting a transient impact feature of a contact action and a steady-state vibration feature of coil excitation, constructing a multi-dimensional state feature vector, and realizing state diagnosis through similarity matching with a preset feature library. According to the invention, the early fault detection sensitivity and diagnosis accuracy of the relay are improved, and a reliable basis is provided for preventive maintenance.

The invention discloses a human body protection active suspension system control method, device and equipment and a storage medium, and the method comprises the steps: collecting vibration acceleration data of a vehicle body and an unsprung in real time after a human body protection function of a current vehicle is activated; converting the vibration acceleration into a vertical vibration frequency, and judging whether the vertical vibration frequency exceeds a preset vertical threshold value or not; when the vertical vibration frequency exceeds a preset vertical threshold value, the current of the active actuator is adjusted; the vehicle body vibration frequency can be effectively prevented from falling below the safety limit value, health risks caused by continuous exposure of pregnant women and other special groups to high-frequency vibration are avoided, it is ensured that the vibration environment in the driving process meets the human body tolerance standard, transmission of road surface vibration excitation is reduced through a calibration algorithm, the vehicle body vibration frequency is improved, and the driving safety is improved. The protection on the human body is enhanced, the human body is prevented from being exposed in a high-frequency vibration environment for a long time, and the control speed and efficiency of the active suspension system are improved.

The invention provides a passenger car body fatigue life prediction and early warning method fusing visual and frequency domain data. The method comprises the following steps: synchronously acquiring a car body vibration time domain signal and a road surface image; converting the time domain signal into a power spectral density curve, extracting frequency domain features, and combining image visual features to jointly identify the grade of the road surface; constructing and dynamically calibrating a digital twin simulation model based on the curve; fusing physical, frequency domain, virtual, visual and knowledge data, and predicting the residual fatigue life through a neural network; on the basis of the power spectral density curve, calculating equivalent fatigue stress through a Miller criterion to carry out fatigue evaluation, and calculating maximum quasi-static stress according to a criterion 3 to carry out static strength evaluation; and dynamically triggering and managing monitoring, early warning and emergency three-level closed-loop early warning according to the road grade, the fatigue damage value and the stress intensity ratio. Accurate sensing of working conditions, fatigue-strength collaborative evaluation and multi-stage dynamic early warning are realized, and the accuracy and practicability of passenger car body safety monitoring are improved.

The invention relates to the technical field of flow signal processing and leakage early warning, in particular to an oil engine intelligent monitoring system and method based on multi-source data analysis. A data acquisition unit acquires an oil return pipe flow pulse signal, an engine body vibration signal and an oil pump load rate parameter in real time; the vibration direction analysis unit distinguishes vertical and horizontal vibration dominant modes according to the load rate and outputs directional data and compensation and early warning signals, and the eddy current pseudo peak value detection unit is matched with a pulse template by means of wavelet decomposition, identifies the amplitude, frequency and dislocation characteristics of a pseudo peak value at a pipe diameter sudden change position, and outputs the directional data and the compensation and early warning signals. The dynamic baseline correction unit constructs a vibration and eddy current coupling factor model, compensates a pseudo peak lifting effect at a low load and corrects time sequence offset at a high load, the leakage judgment unit calculates corrected flow deviation degree and weighted residual energy distribution characteristics, leakage alarm is triggered when an alarm threshold value is exceeded, misjudgment caused by interference is eliminated, and the oil engine leakage monitoring accuracy is improved.

The application relates to a ship body vibration suppression parameter determination method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring a coupling finite element model of an equipment, a base and a ship body structure; performing power flow analysis on the coupling finite element model to obtain a power flow analysis result; identifying a key transmission path based on the power flow analysis result; and determining path stiffness matching parameters of path blocking and integrated frequency parameters of the equipment, the base and the ship body based on the key transmission path. The method can improve the vibration suppression effect and facilitate modification of the parameters in the later stage.

The present application relates to the field of medical informatics, and provides a tooth abnormal vibration signal detection system, comprising: an arc-shaped base body; a plurality of arc-shaped base body vibration sensors embedded in the arc-shaped base body, each arc-shaped base body vibration sensor corresponding to one of two sides of a predetermined implant implantation position of a user and being adjacent to a tooth, for real-time sensing of an external mechanical vibration signal acting on the arc-shaped base body and the two sides of the tooth; a bone conduction vibration sensor for sensing a bone conduction vibration signal conducted to the predetermined implant screw base through the jaw bone of the user; and a signal processing module for receiving the external mechanical vibration signal and the bone conduction vibration signal respectively, performing frequency domain conversion, calculating the similarity of first and second frequency spectrum characteristics, and outputting a same frequency judgment result. The present application improves the real-time detection accuracy of implant nail and tooth root collision, and improves the implant success rate and safety.

The embodiment of the invention discloses a vehicle seat adjusting method and device, equipment and a medium. The method comprises the steps of determining target relative data, and when the target relative data is smaller than or equal to a preset relative threshold value, obtaining target operation data and target object weight of a target vehicle; based on the target vehicle model, according to the target operation data and a preset model algorithm, determining a target vehicle body vibration frequency, and according to the target vehicle body vibration frequency and a preset damping configuration table, determining initial damping data; determining target damping compensation data according to the weight of the target object and a preset damping compensation table, and determining target damping data according to the initial damping data and the target damping compensation data; and the target valve opening degree is determined according to the target damping data and a preset valve opening degree table, the pre-adjusted target electromagnetic valve is adjusted again according to the target valve opening degree, and an adjusted target seat is obtained. And the accuracy and the timeliness of adjusting the vehicle seat are improved.

The invention discloses an image translation-based inclined view angle rotator vibration displacement measurement method. The method comprises the following steps of: performing cutting operation on an acquired rotator vibration image under a standard view angle and an acquired rotator vibration image under L random view angles; randomly extracting a preset number of random view angle cutting images and standard view angle cutting images of matched frames from the L random view angles, and taking the standard view angle cutting images as labels of the random view angle cutting images to construct a data set; training and verifying the image translation model through the training set and the verification set to obtain a trained image translation model; selecting one of the obtained rotating body vibration images of the preset time length under the L random view angles, inputting the selected rotating body vibration images into a trained image translation model, and obtaining a standard view angle image of a frame number corresponding to the preset time length; carrying out image splicing operation according to the standard view angle images with the frame number corresponding to the preset duration to obtain a spliced image; and performing edge detection on the spliced image, extracting an edge contour of the rotating body, obtaining sub-pixel-level displacement data, and converting the sub-pixel-level displacement data into a displacement value under a world coordinate system. According to the invention, the vibration displacement of the rotor can be effectively and accurately extracted from a plurality of shooting angles, and a more reliable and accurate scheme is provided for the measurement of the vibration displacement of the rotating body.

The utility model discloses a kind of EGR valve fixed support that can prevent vibration, it is related to EGR valve technical field, including mounting plate, EGR valve body, further include: adjusting assembly, set in the mounting plate, for adjusting the length of fixed support;Locking assembly, set in the mounting plate, for locking adjusting assembly;Mounting assembly, set in the adjusting assembly, for installing EGR valve body;Fixed component, set in the mounting assembly, for fixed mounting assembly;Damping component, set in the mounting assembly, for preventing EGR valve body vibration, by the cooperation of adjusting assembly, utilize the knob of rotation to drive screw rod rotation, so that screw rod drives adjusting plate movement, to make the sliding plate fixedly connected with adjusting plate slide along support shell, to reach the length of fixed support can be adjusted, so that fixed support can be installed on different vehicle models, expand the application range of fixed support.

The invention relates to an in-vehicle active noise reduction method based on coupling of a sound field base and engine frequency, and belongs to the technical field of noise control. The method comprises the following steps: acquiring working condition data, an in-vehicle noise signal and vehicle body vibration data, and integrating the data into a unified data frame; performing modal decomposition on an in-vehicle sound field based on a unified data frame, extracting modal features, constructing a dynamically updated sound field modal model, analyzing a response relationship between each order frequency of an engine and a sound field modal, and performing fitting to generate a coupling coefficient matrix; calculating an offset sound wave parameter according to a matrix weight ratio, synthesizing a global comprehensive offset signal, and combining with a real-time noise signal for dynamic correction; driving partition loudspeakers in the vehicle to output offset sound waves, and adjusting the output intensity of the loudspeakers to optimize energy consumption. Accurate coupling of the engine frequency and the in-vehicle sound field mode is achieved, the problem that noise reduction lags behind under the complex working condition in the prior art is solved, and noise reduction uniformity and working condition adaptability are improved.

The application provides a magnetic valve type static synchronous compensator fault diagnosis and state monitoring method and system, relates to the technical field of state monitoring of a compensator, and extracts a dynamic sensitivity characteristic value by calculating a derivative of instantaneous phase angle distortion and combining a nonlinear sensitivity amplification term; extracts a vibration energy characteristic value based on body vibration acceleration and a high-frequency impact penalty term, realizes accurate characterization of electromagnetic and mechanical two-dimensional characteristics, orthogonally maps the above cross-domain characteristics and connects them in time sequence, constructs a two-dimensional time sequence trajectory mapping set, and intuitively represents an electromechanical coupling dynamic evolution process; in combination with a safety boundary, intercepts an out-of-bound trajectory segment, solves a tortuosity and a return parameter, accurately filters power grid transient interference by using a two-channel logic of a phase space topological form, realizes high-sensitivity diagnosis and reliable isolation of a substantial internal fault of the compensator.

The application discloses a physiotherapy robot for whole-body rehabilitation conditioning, which comprises a bed body, a foot vibration physiotherapy device and a hip screening device. The foot vibration physiotherapy device is arranged at one end of the bed body and can generate vibration along the length direction of the bed body. The hip screening device is arranged on the bed body and located at one side of the foot vibration physiotherapy device, and can generate vibration along the width direction of the bed body. The physiotherapy robot can use the foot physiotherapy device to perform whole-body vibration physiotherapy on the human body, can use the hip screening device to perform whole-body vibration physiotherapy on the human body, can perform positioning and matching conditioning on the neck and lumbar spine, can massage the legs, can assist sleep through music and can assist heat therapy, and has perfect whole-body vibration function, sleep conditioning function and spine rehabilitation conditioning function.

This application discloses a motion data acquisition method, device, smart brooch, and storage medium, relating to the field of motion recognition technology. The method is applied to a smart brooch equipped with an inertial measurement unit and a vibration measurement unit. The method includes: acquiring acceleration data collected by the inertial measurement unit and acquiring body vibration data of the user collected by the vibration measurement unit; when valid values ​​in the acceleration data are missing, compensating the acceleration data based on the body vibration data, and analyzing the compensated acceleration data to obtain the user's motion data; when no valid values ​​are missing, determining the user's motion data based on the acceleration data. Compared to existing methods that rely on inertial measurement units to acquire motion data, this application can compensate for missing acceleration data using body vibration data, reducing discontinuities in motion data and thus improving the completeness and reliability of motion data acquisition.

The application relates to the field of anomaly detection, and discloses a high-pressure valve flow capacity anomaly detection and strength failure early warning system, which is used for accurately evaluating the thermodynamic and kinetic states of a valve. The system comprises the following steps: obtaining original parameters by synchronously measuring the fluid pressure, temperature, mass flow and valve body vibration acceleration of the inlet and outlet of the valve; calculating an entropy production health index for representing the abnormal degree of energy dissipation in the valve; simultaneously calculating a chaos index for representing the instability degree of the structure kinetic state; nonlinearly fusing the two indexes to generate a composite health index with higher sensitivity and an evolution track of the composite health index; constructing a random dynamic system evolution model based on the track; and projecting to obtain the failure probability of the future state of the valve. The application avoids relying on historical fault data and machine learning models, realizes deep measurement, accurate testing and intuitive indication of the health state of the high-pressure valve through chain processing driven by physical mechanism.

The utility model relates to the related technical field of transformers, in particular to a power transformer anti-seismic protection device which comprises a transformer body, a protection mechanism is arranged on the upper surface of the transformer body, and a cooling mechanism is arranged on the surface of one side of the transformer body. According to the anti-seismic protection device for the power transformer, by arranging the protection mechanism, when an earthquake occurs, seismic waves drive the transformer body to vibrate, at the moment, a protection plate can primarily buffer vibration borne by the transformer body under the elastic force effect of a first spring, and meanwhile, a swing block can swing under the elastic force effect of a second spring; and the fixing plate is pushed to swing through the connecting plate, vibration borne by the transformer body is further buffered, equipment displacement caused by stress concentration is avoided, and the safety and stability of operation of the transformer body are improved.

The invention discloses a multi-scene-oriented security robot intelligent inspection method and system, and relates to the field of intelligent security, and the method comprises the steps: collecting machine body vibration data generated by interaction between a robot and the ground in an environment with good visibility, and building a standard fingerprint band and a historical image; in a low-visibility environment, the robot collects a fuzzy visual image and vibration data in real time, generates a current inspection fingerprint and matches the current inspection fingerprint with a standard fingerprint band; and when deviation is detected, calling a visual memory library and determining the closest reference landmark by utilizing a deep learning visual matching network, so that the steering angle of the robot is adjusted, and the robot is enabled to be close to the central path of the fingerprint zone again. The method can be applied to industrial control software, is deployed on security robots of multiple models to realize process control of inspection, solves the problem that the security robots are unstable in inspection positioning in a low-visibility environment, and realizes path self-correction and intelligent inspection control based on vibration fingerprints and depth vision matching.

This invention discloses a biomimetic cheetah spine elastic energy storage high-speed gait mechanism, belonging to the field of biomimetic legged robot motion execution and efficient gait control technology. Currently, quadrupedal and humanoid robots generally suffer from low energy utilization, high overall motion power consumption, significant gait rigidity impact, and limited continuous long-distance high-speed movement capability under high-speed running conditions. Conventional rigid linkage structures are difficult to achieve the efficient conversion and recycling of kinetic and elastic potential energy during biological movement. This invention mimics the biological movement mechanism of a cheetah during high-speed running, characterized by periodic bending and extension of the spine accompanied by elastic energy storage and release through tendons. It designs a multi-segment biomimetic flexible spinal main structure, combined with high-modulus energy storage tendon components, joint damping buffer units, and a collaborative drive linkage mechanism. This enables the robot to recover, store, and release energy within the complete gait cycle of stepping, takeoff, and landing, thereby significantly improving running speed, reducing drive system load, minimizing body vibration and impact, and enhancing overall stability and endurance under high-speed movement conditions. This technical solution has a highly original structure and is significantly different from existing bionic gait mechanisms. It can be widely used in equipment such as high-speed quadruped robots, emergency rescue robots, outdoor inspection robots, and racing robot platforms.

The utility model relates to the sealing device field for door, especially prevent clamping prevent dragging rubber strip subassembly and door. Through the support limit top edge of inside and / or outside of sensitive element installation cavity of setting on at least one of the pair of two anti -pinch rubber strip, and the other anti -pinch cooperation in the front -back direction, in two anti -pinch rubber strip sealing cooperation state, through the support of support limit top edge, the pair of two anti -pinch rubber strip is limited in the front -back direction, can limit the distance between the sensitive element of one anti -pinch rubber strip and another anti -pinch rubber strip main part, avoid because the body vibration leads to two anti -pinch rubber strip to further close and misfire sensitive element, lead to misfire, so need not to carry out signal shielding to sensitive element, in the door closed state two anti -pinch rubber strip between clamping the situation such as belt or rope, sensitive element can also be triggered and deliver to vehicle controller signal, realize prevent dragging function.

The utility model relates to the technical field of building water supply and drainage, specifically relates to a hot water heat preservation type PPR water supply pipe, including PPR pipe, and the flange of fixed connection in PPR pipe outer end surface, prevent leakage mechanism, including be used for collecting the water storage subassembly of leakage of flange junction, the buoyancy of leakage in water storage subassembly can be with drive assembly, the junction of the flange can be sealed with the sealing assembly of the thrust of drive assembly to leakage, and be used for automatically locking the locking assembly of drive assembly and sealing assembly sealing state. The utility model discloses through setting prevent leakage mechanism, not only can in the junction of flange leak when, automatically drive two sets of sealing block to carry out sealing to leakage, still can automatically lock the sealing state of sealing block, prevent its because water supply pipe body vibration or water pressure fluctuation leads to sealing loose, to realize guarantee hot water delivery security while, ensure the effect of water supply pipe body use reliability.

The utility model discloses a vibration detection device for a tractor driving position. The vibration detection device comprises a test box, a bottom supporting structure, a counterweight supporting structure and a steering wheel conduction structure. According to the vibration detection device for the tractor driving position, the accelerometer, the gyroscope and the vibration acquisition sensor are used for performing real-time data acquisition in measurement of vibration parameters of the whole body of a tractor driver, and the controller uploads the data to a remote control center through the wireless communication module after the test is completed; the whole-body vibration combined weighted acceleration of the driver can be conveniently calculated; the bottom supporting structure, the balance weight supporting structure and the steering wheel conduction structure are used for carrying out multidirectional positioning and vibration conduction on the test box, a tester does not need to sit in a cab, and therefore unmanned testing is achieved; compared with a traditional measurement mode, the testing device is small in structure, automatic measurement of whole-body vibration parameters of the tractor driver under various road conditions and environments is facilitated, and the measurement efficiency is improved.

The invention belongs to the technical field of urban rail transit operation and maintenance, and discloses a metro vehicle abnormal jitter repairing method, system, device and medium, and the method comprises the steps: 1, collecting a vehicle body vibration signal, fusing passenger comfort feedback, and constructing a vehicle body abnormal jitter grading system related to objective indexes and subjective feelings; secondly, collecting static environment parameters and vehicle running dynamic environment parameters around the track, building a multivariable regression model, and quantifying the influence weight of each parameter on jitter; thirdly, main environmental factors are found out according to the influence weights, key vibration transmission points are determined through simulation of a vehicle body-track rigid-flexible coupling model and energy flow analysis of a vehicle body-bogie finite element model, and a fault source is positioned; and 4, generating a temporary protection and warehousing repair scheme according to the fault source, the temporary protection scheme being a speed adjustment curve optimized by a genetic algorithm, and the warehousing repair scheme being a personalized operation instruction based on a mapping library. The method can accurately diagnose the abnormal jitter reason of the vehicle body and generate an efficient repair scheme.

The application provides a vehicle body vibration positioning method and system, which comprises the following steps: pasting sensing optical fibers along a preset path on a vehicle body and setting optical markers on the optical fiber path at a predetermined number of calibration points; scanning the vehicle body provided with the optical markers to obtain three-dimensional coordinates of each optical marker point in a global coordinate system of the vehicle; applying mechanical excitation around each optical marker point, obtaining fiber coordinates of each optical marker point based on time domain reflection analysis, and constructing a coordinate relationship mapping table of the fiber-vehicle body according to the fiber coordinates of the optical marker points and the three-dimensional coordinates of the optical marker points in the global coordinate system of the vehicle; if a vibration signal is detected during the operation of the vehicle, the fiber coordinates of the vibration signal are extracted through signal analysis, and the source of the vehicle vibration signal is positioned based on the coordinate relationship mapping table of the fiber-vehicle body. Through the scheme, the efficiency and accuracy of vehicle vibration positioning can be improved.

The utility model discloses a damping device and a vehicle, the disclosed damping device comprises a fixed support, an inner layer elastic body, an outer layer elastic body and a plurality of elastic connecting ribs, the fixed support is used for being fixedly connected with a vehicle body, the inner layer elastic body is sleeved outside the fixed support, and the outer layer elastic body is sleeved outside the outer layer elastic body. The outer-layer elastic body is arranged outside the inner-layer elastic body in a sleeving mode, a gap is formed between the outer-layer elastic body and the inner-layer elastic body, the outer-layer elastic body is used for being fixedly connected with a vibration source, and the elastic connecting ribs are arranged in the gap and connected with the inner-layer elastic body and the outer-layer elastic body. According to the scheme, the problem that vibration of a vehicle body is large due to the fact that vibration of an engine is transmitted to the vehicle body through an air inlet pipeline in a vehicle in the related technology can be solved.

The utility model provides a kind of low-noise air purifier fan, belong to fan technical field.The low-noise air purifier fan, including purifier shell, the four walls of the purifier shell three sides are equipped with several groups of air inlet grating, the top end of the purifier shell is movably clamped with purifier top cover, the inside of the purifier top cover is provided with fan main body, the back of the fan main body is fixedly connected with motor, the four walls of the fan main body are all fixedly connected with damping device.The utility model has, when air purifier operates, by motor drive fan main body rotation, when fan main body vibration, the vibration of fan main body pushes limit rod to slide in transmission rod two inside, spring of limit rod outer wall sleeve joint absorbs vibration, and mutually offset keeps the stability of fan main body, avoid resonance, reduce mechanical noise, make purifier operate more quietly, reduce the interference to user daily life.

The present application relates to the technical field of pulverizer, and more particularly to a pulverizing equipment modular wear rack plate and a replacement method thereof, which comprises the following steps: acquiring the wear rate value, material hardness value, water content, body vibration amplitude value and original assembly gap value of each module wear rack plate in real time; judging whether there is a particle embedding risk based on the particle embedding risk coefficient; determining whether the embedded particles cause abnormal wear based on the material hardness value and the wear rack plate hardness; identifying whether there is local abnormal wear based on the wear rate mutation coefficient; deciding to execute a single module or group replacement strategy and generating an instruction based on the joint replacement urgency coefficient; calculating the replacement effect compliance coefficient after replacement to verify the replacement effect; and calculating the correction coefficient based on the effect compliance deviation to optimize the characteristic parameters in the replacement process. The present application solves the problems of damage of the split type wear rack plate caused by micro displacement due to particle embedding gap and accurate replacement of the wear rack plate.

The invention discloses a switch cabinet with a sensing locking function, and belongs to the field of switch cabinets. Comprising a switch cabinet body, a cabinet door is hinged to the switch cabinet body, at least three sets of wall bushings are installed on the side face of the switch cabinet body in a penetrating mode, the wall bushings are connected with bus copper bars through bolts, the ends of the bus copper bars are connected with connecting copper bars through bolts, and one ends of the connecting copper bars are connected with lightning arresters. The lightning arrester is connected with the installation support through a grounding part, and the side face of the bus copper bar is in elastic buffer connection with the locking assembly through the buffer assembly. According to the switch cabinet with the sensing locking function, cabinet body vibration and load fluctuation impact can be absorbed through the first buffer spring and the second buffer spring, relative displacement pulling force can be counteracted, direct pulling on the sensor can be weakened, and pulling stress at the joint of the sensor and the secondary line can be indirectly reduced; the fixing assembly protects the secondary wire in a whole process through placing, wire bunching and guiding units, and is in buffer linkage with a sensor end, so that the secondary wire is prevented from being pulled and damaged.

The application provides a gear wear uniformity identification method based on gear box vibration response characteristics. The constraint relationship in each element of the gear box in the actual operation process is analyzed, the description mode of the system boundary condition is determined, and a rigid-flexible coupling model containing the gear box body and the gear transmission system is established. The dynamic meshing stiffness of the uniform and non-uniform wear gears is calculated by using a numerical calculation method, a system dynamics calculation model is constructed, the influence degree of different wear modes on the gear meshing stiffness and the wear amount is quantitatively evaluated, the gear meshing force and the box vibration response law under the uniform and non-uniform wear are obtained in combination with the rigid-flexible coupling model, a simulation test bench is built, the gear box vibration signals are collected and the features are extracted, and the wear uniformity identification is realized. The gear box dynamic model is established by using the rigid-flexible coupling method and the numerical calculation comprehensive method, the change of the meshing stiffness and the wear amount and the mutual influence of the shell and the transmission system are considered, and the gear wear uniformity can be accurately calculated.