181 results about "Coupling vibration" patented technology

The invention relates to a dynamic precision compensation control method based on an intelligent PCB drilling machine, and the method comprises the steps: collecting a dynamic parameter set in real time through a multi-source sensor group disposed on a drilling main shaft, the dynamic parameter set comprises displacement deviation caused by axial deformation of a main shaft, thermal deformation analyzed based on interlayer temperature gradient and frequency spectrum characteristics reflecting tool-material coupling vibration, and according to the multi-dimensional compensation vector and current drilling process parameters, a space trajectory correction instruction and a motion parameter optimization instruction are dynamically synthesized, so that the dynamic parameter set is obtained. Wherein the trajectory correction instruction reconstructs a real-time interpolation path through a B-spline curve, the motion controller receives a space trajectory correction instruction and a motion parameter optimization instruction, at least three times of compensation iteration are completed in a single drilling period, a linear motor and a spindle motor are driven to execute online precision compensation, and the execution delay of the compensation instruction is smaller than 2 ms.

The invention relates to the technical field of automobile glass film removal, in particular to a laser film removal control method and system based on dynamic environment compensation. The control method comprises the steps that a multi-source vibration monitoring network is constructed at key nodes of a galvanometer system base, a linear guide rail driving unit and a workpiece clamp of the laser film removing equipment, an original vibration signal set containing acceleration, angular speed and displacement is collected in real time through a three-axis acceleration sensor and a gyroscope set, and the sampling frequency is not lower than 10 kHz. According to the method, breakthrough improvement of curved surface laser processing is achieved through a full-link compensation mechanism, specifically, a three-axis sensor network is synchronously deployed at a motor flange, a lead screw bearing seat and a clamp interface, a differential anti-interference circuit is combined, coupling vibration characteristics of a mechanical transmission link are captured at the same time for the first time, and a data foundation is laid for accurate compensation.

The invention relates to the technical field of blade monitoring, in particular to a long flexible blade real-time monitoring and fault early warning method which comprises the steps that vibration signals of a long flexible blade in the running state are collected, and the vibration signals are subjected to the aerodynamic load, gravity and centrifugal force multi-factor coupling effect; constructing an overdetermined equation set containing a multi-source excitation characteristic based on the blade dynamic model; decomposing the vibration signal by adopting a sparse decomposition algorithm to obtain a signal decomposition result; based on the signal decomposition result, solving the overdetermined equation set to obtain modal parameters of each coupling vibration source; and determining a state monitoring result of the long flexible blade according to the modal parameters of the coupling vibration sources.

The invention relates to the technical field of signal processing, in particular to a high-speed unmanned aerial vehicle structure servo elastic coupling vibration suppression control method, system and device, a medium and a program product. Obtaining a target control loop causing resonance; spectral analysis is carried out, and double-center frequencies causing resonance are obtained; a cascade wave trap with double center frequencies is designed; and the servo elastic coupling vibration of the unmanned aerial vehicle structure is suppressed. According to the method, the problems of difficulty in structure modification, narrow notch frequency range and large low-pass filtering delay of an existing structure servo elastic coupling resonance solving method are solved, the performance of a control system cannot be reduced, and the flight safety is ensured.

The invention discloses a fast and accurate identification method for counter-rotating double-rotor unbalanced coupling vibration of a paddle fan engine. An unbalanced coupling signal separation method based on double-rotor micro-speed-difference waveform envelope is combined with an automatic balancing technology. Based on the characteristic of vibration coupling of inner and outer rotors of a micro-speed-difference double-rotor system, a vibration signal shows a beat vibration phenomenon. By extracting beat peak and beat valley characteristics of beat vibration signals, unbalanced vibration amplitudes and phase information of the inner rotor and the outer rotor are separated. And optimizing the separated vibration signals by adopting an unbalanced coupling signal separation method based on birotor parameter modeling and data fitting to obtain high-precision amplitude and phase parameters, and taking the high-precision amplitude and phase parameters as input parameters of an automatic balance control system. And combining a trial mass method and an influence coefficient method to calculate the unbalance magnitude and position of the inner and outer rotors. And finally, the automatic balance controller drives a counterweight disc in the actuator to move to a target position, the unbalance amount of the rotor system is counteracted, and dynamic balance of the system is achieved.

The invention discloses an adaptive control method and system for paying-off tension of a ground wire, particularly relates to the technical field of automatic control, and is used for solving the problem of control misalignment caused by incapability of distinguishing and stripping multi-span coupling vibration interference in an existing tension control method. Firstly, high-frequency fluctuation components are identified by monitoring frequency band energy distribution of tension signals, then state space trajectory similarity and causal network topology of multi-point vibration signals are cooperatively analyzed, and local or global coupling of vibration sources is accurately judged; then, extracting a dominant vibration frequency and a phase difference, and separating a vibration interference component from the original tension signal through a phase compensation adaptive filter according to the dominant vibration frequency and the phase difference; and finally, subtracting the interference component from the original tension to obtain a real tension value for closed-loop adjustment of the output of the tension equipment. Accurate identification and dynamic compensation of vibration interference are achieved, and the control precision of the pay-off tension and the system stability are remarkably improved.

The invention discloses a blower surface treatment method based on an intelligent multi-axis linkage technology, and relates to the technical field of intelligent manufacturing and automatic control. Comprising the following steps: S1, collecting a vibration signal in real time through a multi-source sensor network; s2, preprocessing the vibration signal to obtain a vibration component, and determining a dominant vibration source according to the frequency band energy of the vibration component; s3, generating a dynamic suppression strategy according to the dominant vibration source; and S4, nozzle track deviation is obtained in real time through a laser displacement sensor, and the proportional gain and the integral gain of a PID controller are adjusted. Frequency domain separation is carried out on multi-source coupling vibration signals, a leading vibration source is recognized from the signals, a suppression strategy is dynamically generated, meanwhile, the nozzle track deviation is corrected to be within 0.03 mm in real time through a laser displacement sensor, the problem of misjudgment caused by frequency spectrum aliasing in a traditional method is solved, and the method is suitable for large-scale popularization and application. And the track precision and the coating uniformity of special-shaped curved surface spraying are improved.

The invention relates to the technical field of unit gap vibration testing, in particular to a unit gap vibration testing method based on transient numerical simulation, and the method comprises the steps: building a multi-degree-of-freedom dynamic model through obtaining unit structure parameters and operation parameters, carrying out the global optimization of stiffness matrix and damping matrix parameters through employing a genetic algorithm, and generating a high-precision dynamic model; a thermal fluid coupling module is integrated in the model, a coupling weight factor is dynamically corrected in combination with a particle swarm optimization algorithm, a multi-physical-field unsteady-state coupling vibration response equation is generated, and a Pareto optimal solution set is solved in combination with a multi-objective genetic algorithm to optimize gap parameters. According to the invention, real-time evaluation of the vibration state and closed-loop output of fault early warning signals are realized. According to the invention, the problem of insufficient characterization of unsteady state multi-field coupling characteristics in the prior art is solved, and high-precision technical support is provided for online monitoring of rotating machinery.

The invention relates to a train-rail coupling vibration analysis method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: dividing a plurality of track units, constructing a motion differential equation of a steel rail in the track units in a frequency domain, and solving to obtain a relation between longitudinal displacement and frequency on nodes at two ends of the steel rail and a relation between stress and frequency on the nodes at the two ends of the steel rail; constructing a steel rail dynamic stiffness matrix for the steel rails in the rail units, and constructing a rail dynamic stiffness matrix for the rail units according to the steel rail dynamic stiffness matrix; assembling to obtain an integral dynamic stiffness matrix of the train-rail system, and constructing a transfer matrix of a rail; and determining a track irregularity excitation power spectrum, and solving to obtain a dynamic response index of the train-track system on each degree of freedom under the track irregularity excitation power spectrum according to the transfer matrix and the overall dynamic stiffness matrix. By adopting the method, the calculation efficiency of the dynamic response index can be improved.

The invention discloses a vibration and conventional fatigue load coupled nonlinear damage accumulation prediction method. The method comprises the following steps: analyzing and determining a peak stress at a dangerous point under the loading of a conventional fatigue load according to a finite element model of an engineering component; determining a stress amplitude probability density function at the dangerous point under random vibration loading according to structural dynamics analysis; searching a pre-generated material fatigue life curve; determining equivalent stress at the dangerous point under random vibration loading according to the fatigue life curve; calculating the ratio of the peak stress loaded by the conventional fatigue load at the dangerous point to the random vibration equivalent stress, and establishing a coupling damage parameter according to the vibration and conventional fatigue load coupling series; and establishing a nonlinear damage accumulation model of vibration and conventional fatigue load coupling. According to the nonlinear damage accumulation model provided by the invention, the influence of vibration, a conventional load sequence and a coupling series is considered, the parameter determination is simple, and high-precision prediction of structural damage evolution under complex load coupling can be realized.

The invention provides a coupled vibration analysis method for a tungsten wire rope in a silicon single crystal pulling system, and belongs to the technical field of silicon single crystal growth of integrated circuits. The method comprises the following steps: constructing a lifting model of a tungsten wire rope in a silicon single crystal lifting system, and obtaining various lifting parameters of the tungsten wire rope; constructing a nonlinear vibration equation of the tungsten filament rope by utilizing the Hamiltonian principle according to each lifting parameter; and performing discretization processing on the nonlinear vibration equation by using a Galerkin method to obtain a linear vibration equation, solving the linear vibration equation, and obtaining a coupled vibration analysis result of the tungsten wire rope by using a solving result. The vibration suppression of the silicon single crystal pulling system can be realized, and the quality of the silicon single crystal is improved.

The invention provides a method and system for simulating coupled vibration of a truss structure and a netting structure of a culture net cage, and the method comprises the steps: building a vibration model of the truss structure according to the material and physical parameters of the truss structure; establishing a vibration model of the netting structure according to the material and physical parameters of the netting structure; establishing a coupling vibration model of the truss structure and the netting structure according to the dynamic tension action between the truss structure and the netting structure; carrying out integral calculation on the coupled vibration model in a time domain to obtain a motion response of coupled vibration of the truss structure and the netting structure of the aquaculture net cage; and according to the motion response, analyzing the change of internal stress of the truss structure and the netting structure of the aquaculture net cage, and determining a dangerous connection point of the dangerous area and the netting structure so as to reinforce the netting and improve the safety and reliability of the netting.

The invention relates to the technical field of industrial equipment predictive maintenance and fault diagnosis, in particular to a multi-motor coupling vibration intelligent diagnosis method and system. According to the technical scheme, the method comprises the following steps: generating a coupled vibration simulation data set with an accurate fault tag through a parameterized fault simulation module based on collected vibration data of multiple motors in a normal operation state and physical parameters of motor equipment; according to the invention, cold start of the diagnosis system under the condition of no historical fault sample is realized; a deep reinforcement learning agent is used for processing a space-time coupling signal, and a layered reward mechanism is combined, so that the decoupling diagnosis precision and the early warning capability are remarkably improved; through the online self-adaptive learning module, the system can be finely adjusted in real time according to field feedback to quickly adapt to the state of individual equipment; and the simulation-model evolution module continuously optimizes the simulator and the diagnosis model by using the accumulated real data to form a self-iterative closed loop.

The invention discloses a crack strong-robustness time-frequency compressed sensing monitoring method, system, medium and equipment based on inter-blade tip timing, and the method comprises the steps: determining the installation number and installation positions of blade tip timing sensors, and carrying out the circumferential installation of the blade tip timing sensors on a rotor blade case; the blade tip timing sensors are used for obtaining a time sequence when the rotor blades reach the positions of the blade tip timing sensors; based on each time sequence and the rotor blade included angle, obtaining an inter-blade tip coupling vibration speed measured by each blade tip timing sensor; an undersampling vibration speed sparse representation model is constructed based on the inter-blade tip coupling vibration speed, dynamic frequencies of adjacent rotor blades are decoupled and extracted by using a sparse reconstruction algorithm, and non-baseline monitoring is performed on a crack propagation process according to the evolution of a vibration frequency difference between the blades.

The invention discloses a self-energized magneto-rheological vibration reduction system and method suitable for transverse and vertical coupling vibration of a high-speed normal-conducting maglev train, and relates to the field of magnetic suspension. The suspension surface current collection coil and the guide surface current collection coil are used for inducing magnetic field changes and generating induced electromotive force; the energy management system is used for rectifying, boosting and stabilizing the induced electromotive force and storing electric energy; the acceleration detection system is used for detecting transverse and vertical vibration accelerations of the vehicle body; the control system is used for outputting control current according to the vibration signal; and the transverse magneto-rheological damper and the vertical magneto-rheological damper are used for outputting variable damping force according to the control current and restraining transverse and vertical vibration of the vehicle body. According to the method, effective suppression and energy recovery of transverse and vertical vibration are realized without depending on current frequency division processing, so that the decoupling control problem caused by active control noise in a normal-conducting magnetic levitation system is solved.

The invention relates to a shaft system response calculation method considering gyroscope bending-torsion coupling, which comprises the following steps: establishing a gyroscopic effect model based on the gyroscopic effect and Euler angle decomposition absolute angular velocity of a rotor; hydraulic excitation and coupling torque generated by the hydraulic excitation are calculated; the total kinetic energy and the total potential energy of the shaft system including the gyroscopic effect are calculated, and a dynamic response model of the shaft system of the water-turbine generator set is established based on the Lagrange equation. According to the method, a bending-torsion coupled vibration nonlinear mathematical model containing a gyroscopic effect and hydraulic excitation is constructed, the influence of the gyroscopic effect on shafting vibration characteristics, the hydraulic excitation and coupling torque generated by the hydraulic excitation are considered, and total kinetic energy and total potential energy containing the gyroscopic effect are integrated; the problem that vibration coupling factors are not fully considered in the prior art is solved, and the shaft system power precision of the water-turbine generator set is improved. The method has important practical significance for preventing major vibration accidents of the hydropower station, and the operation stability of the water-turbine generator set can be improved.

The embodiment of the invention discloses a vibration control method and system for a steel-concrete combined box girder bridge, and the method comprises the steps: carrying out the vehicle-bridge coupling vibration analysis through building a space finite element model which accurately considers the interface slippage and shear hysteresis effect; an initial optimal parameter group of the multi-tuned mass damper is optimized and determined based on an analysis result, and installation tuning is carried out; in the operation stage of the bridge, vibration is monitored in real time through the sensor system, parameters of the damper are dynamically adjusted by the controller according to the deviation between measured data and a target value, and self-adaptive control is achieved. Thus, high-precision simulation, optimization design and intelligent control are combined, the problem that the control effect is poor due to model simplification and fixed parameters in a traditional method is solved, and vibration suppression accuracy and environmental adaptability are remarkably improved.

The invention discloses an axle coupling vibration response prediction method based on PIKAN, and the method comprises the following steps: carrying out the discretization of the time-space domain of a bridge and a vehicle according to the structure of the bridge and the running speed of the vehicle on a bridge floor; constructing an axle coupling control equation according to a discrete result; selecting proper internal and external univariate functions, and respectively constructing a KAN1 module used for bridge vertical displacement response prediction and a KAN2 module used for vehicle vertical displacement response prediction; and constructing a residual loss function based on an axle coupling control equation, conditional constraints and real observation data to train and optimize the KAN1 module and the KAN2 module. The method has the beneficial effects that the method provided by the invention has a relatively high calculation rate, has relatively good calculation precision on the premise of considering the calculation efficiency, and can be used as a substitute model for axle coupling finite element numerical simulation. And the bridge vibration response of a heavy-load vehicle not getting on the bridge can be calculated in real time, and the safety risk of the bridge structure is rapidly evaluated.

The invention relates to the technical field of equipment calibration, and discloses a collaborative directional calibration method and system, electronic equipment and a storage medium, and the method comprises the steps: obtaining the circumferential strain distribution data of a drill rod, and extracting the amplitude-frequency characteristics of a dominant vibration mode and the phase offset of an associated coupling vibration mode; generating an amplitude compensation coefficient according to the amplitude-frequency characteristics, generating a time-varying phase compensation factor in combination with the phase offset, and generating a dynamic vibration compensation parameter based on vibration energy distribution dynamic weighted fusion; based on a pre-trained nonlinear phase distortion compensation model, inputting a dynamic vibration compensation parameter and then outputting a gyroscope angular velocity signal after phase correction; performing vibration interference frequency band suppression processing on the accelerometer signal, and outputting the processed accelerometer signal; and performing iterative optimization on the corrected angular velocity signal and the processed accelerometer signal, and outputting a directional calibration result in combination with filtering smoothing processing. According to the invention, high-precision cooperative calibration of the inertial sensor in a multi-mode mechanical vibration environment can be realized.

The invention discloses a method for evaluating the influence of a large-span railway suspension bridge beam end corner on driving performance, and the method comprises the steps: building a three-dimensional finite element model of a large-span railway suspension bridge, coupling a suspension bridge beam end, a telescoping device and a track, and building a suspension bridge beam end-telescoping device-track coupling vibration model; the method comprises the following steps: establishing a vehicle model of a vehicle operated by a large-span railway suspension bridge, and forming a suspension bridge beam end-telescopic device-rail-train coupled vibration analysis system by taking a beam end corner or rail irregularity as external excitation; outputting a dynamic response index of the operating vehicle; dynamic response indexes of operating vehicles under different beam end corner working conditions are calculated, according to the design load of the suspension bridge, the amplitude of the beam end corner of the suspension bridge is calculated, and whether the beam end corner of the suspension bridge meets the requirement or not is evaluated. The dynamic response of the operating vehicle can be quickly obtained, and the mapping relation between the beam end corner deformation and the vehicle dynamic response index is established, so that the beam end corner rationality is more accurately evaluated according to the vehicle evaluation index.

The invention discloses a train rail coupling vibration control method, device and equipment and a readable storage medium, and is applied to the technical field of intelligent control, and the method comprises the steps: obtaining a nonlinear model considering a vibration mode of a rail based on a high-speed maglev train structure of a lap joint structure, a rail vibration equation and an electromagnet kinetic equation; determining motion characteristics of the nonlinear model to obtain a motion state space equation; determining a reference model corresponding to the nonlinear model, and determining a control law when the difference between the motion state space equation and the reference model is minimum; and determining target vibration control parameters by using a control law by taking the nonlinear model as a control object reference model as an ideal target. According to the method, the nonlinear model considering the vibration mode of the track is obtained through the high-speed maglev train structure based on the lap joint structure, the corresponding reference model and control law are designed, and due to the fact that the vibration mode of the lap joint structure is considered in the nonlinear model, the suppression effect on coupling vibration of the high-speed maglev train track is better.

The invention discloses a carrier roller fault diagnosis method and system based on coupled vibration analysis, and the method specifically comprises the steps: separating a phase-sensitive optical time domain reflection signal based on a physical parameter of a conveying system, separating the phase-sensitive optical time domain reflection signal into a direct vibration signal and a conveying belt conduction vibration signal, recording the direct vibration signal as a first frequency band signal, and recording the second frequency band signal as a second frequency band signal; recording the conveying belt conduction vibration signal as a second frequency band signal; calculating a feature vector of the first frequency band signal to obtain a first feature vector set; calculating a feature vector of the second frequency band signal to obtain a second feature vector set; and carrying out feature fusion on the first feature vector set and the second feature vector set, and obtaining probability distribution of fault categories based on fused features. According to the method, the physical phenomenon of'conveying belt-carrier roller coupling vibration 'is systematically utilized for the first time, the defects that an existing method is single in dimension and prone to being interfered are overcome through double-channel feature fusion analysis, and the accuracy and robustness of early fault diagnosis of the carrier roller of the long-distance belt conveyor are remarkably improved.

The invention discloses an electric reactor multi-field coupling vibration fatigue simulation method and system based on an S-N curve, and belongs to the technical field of electric power equipment fatigue simulation, and the method comprises the steps: obtaining structure parameters and material parameters of a target electric reactor, and building a parameterized physical model comprising an iron core, a winding and an insulation assembly; based on the parameterized physical model of the target reactor, simulating a time-varying mechanical force in the target reactor under the excitation of rated power frequency current; according to the time-varying mechanical force, calculating the vibration response of each part of the target reactor, and extracting the alternating stress distribution of the target reactor under the steady-state operation condition; and based on the material S-N curve of each component of the target reactor, analyzing the alternating stress distribution by adopting a linear cumulative damage theory, and calculating the failure cycle index and the fatigue life of each component under the preset cycle load. According to the method, through multi-field coupling simulation and S-N curve analysis, the fatigue life of the electric reactor is predicted, and a basis is provided for preventive maintenance.

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

This invention discloses a modeling method, equipment, and medium for a lumped parameter model of a harmonic reducer. The method includes the following steps: analyzing the interaction between the flexible wheel and the outer ring of the thin-walled bearing to obtain their interaction model; establishing a lumped parameter model of the entire harmonic reducer; analyzing the rotation law of the outer ring of the thin-walled bearing and its influence on the fault impact time interval; establishing a mathematical model of the excitation when the thin-walled bearing has an impact-type fault, as the input to the lumped parameter model; and establishing and solving the motion differential equations. This invention can accurately simulate the characteristic frequencies of the thin-walled bearing in a harmonic reducer during a fault, explains the formation of the vibration response frequency distribution during harmonic transmission, and fills the research gap of lacking an effective mechanism model for the coupled vibration of multiple components in a harmonic reducer.

The utility model provides a generator one-way coupling shock absorber suitable for high torque impact, which comprises a pivot, a belt wheel, a vibration isolation spring, an adaptive metal block and a plastic retainer, the pivot is coaxially arranged in the belt wheel, a bearing is arranged at one end of the pivot and rotatably supported between the pivot and the belt wheel, and the plastic retainer is arranged on the bearing. The plastic retainer is arranged on the inner side of the bearing, the outer ring of the plastic retainer is in interference fit with the inner wall of the belt wheel, a spigot is formed in the end face of the side, opposite to the bearing, of the plastic retainer, the adaptive metal block is arranged at the end of the spigot, the pivot is sleeved with the vibration isolation spring, and the end of the vibration isolation spring abuts against the adaptive metal block. According to the structure, an adaptive metal block structure is additionally arranged between the contact surfaces of the vibration isolation spring and the plastic retainer, so that the stress concentration condition borne by the retainer surface of the plastic clutch is reduced, the impact resistance of the retainer is improved, the service life of the damping belt wheel is prolonged, and the failure of the damping belt wheel is reduced.

The present application relates to a kind of theoretical detection methods for determining local void of monolithic track bed, comprising the steps of: obtaining train-monolithic track bed-lining-ground coupling vibration equation according to the control equation of rail, monolithic track bed and lining and the dynamic balance equation of train, the vertical acceleration of car body is calculated using Newmark algorithm;The Hilbert-Huang transform spectrum of the vertical acceleration of car body is obtained;According to the energy change of the Hilbert-Huang transform spectrum of the imf2 decomposition curve under the void state, the position of the local void area of monolithic track bed is judged.The beneficial effects of the present application are: the position of the local void area of monolithic track bed can be judged according to the energy value change of the Hilbert-Huang transform spectrum of the vertical acceleration of car body imf2;Whether there is track bed void and the starting position of void can be judged, and the severity of void length can be qualitatively estimated according to the length of energy value change, which helps to reduce the operation and maintenance cost of subway track.

The application discloses a kind of longitudinal unmanned helicopter transmission shaft and its design method, it is related to unmanned helicopter transmission system design field.The design method includes: initial parameter is entered including the rotation inertia of each component of system and multi-working condition load spectrum;Transmission shaft structure design is carried out and stress intensity check is completed;Local resonance is avoided by regulating single shaft frequency;Eight degrees of freedom transmission system torsional vibration dynamics matrix is constructed to check whole chain coupling vibration;Torsional angle-transmission ratio coupling model is used to solve and compensate actual deviation of front and rear rotor phase;Fatigue damage value of transmission shaft is quantitatively calculated based on Miner theory;Finally, according to multi-dimensional convergence criterion, the final parameter is output.The application can accurately predict coupling vibration, control the deviation of rotor phase within 3°, and quantify fatigue life, effectively improve the stability and service durability of transmission system.

The invention discloses an underwater electronic module anti-vibration structure which comprises a base plate and a center column, the center column is arranged on the base plate, a first fixing plate and a second fixing plate are connected to the center column, and an electronic module is arranged between the first fixing plate and the second fixing plate. The first fixing plate is connected with the chassis through a supporting column; and a clamping block is arranged on the central column and is clamped with the electronic module through a hoop so as to fix the electronic module. According to the anti-vibration structure of the underwater electronic module, the center column and the supporting column are arranged on the chassis, the first fixing plate and the second fixing plate are fixedly connected to the center column, the electronic module is fixed, and the bending strength and the torsional strength of the structure are improved by adding the design of the supporting column, flange embedding and the like; by adding the anti-vibration pad, the clamping block and the hoop, resonance between the vibration isolation system and the electrical system is avoided. On the basis of relieving the system coupling vibration effect, the operation stability of the electronic equipment is improved.

The application discloses a kind of balanced cutting adaptive control method, system and numerical control lathe, belong to numerical control machine tool technical field, solve double-spindle double-tool turret numerical control lathe in double-tool turret balanced cutting finishing stage, because of cutting fluid impact, servo response difference and temperature gradient cause cutting force-thermal deformation coupling vibration, lead to surface finish deteriorate, while conventional detection cannot be identified, finally cause precision parts batch scrapping problem.It includes the following steps: initialization and reference calibration step, determine the fixed parameters required for algorithm operation and store in numerical control system parameter table.The application is by collecting double-tool turret servo current and decoupling into high-frequency component and low-frequency component, using high-frequency component to adjust feed rate, using low-frequency component to offset radial position, to cut off the positive feedback coupling chain between cutting force fluctuation, chip shape change, cooling liquid jet deflection, temperature field distribution change and cutting depth fluctuation, suppress non-periodic dynamic vibration response, avoid machining surface finish deterioration.