355results about How to "Avoid resonance" patented technology

The utility model discloses an oral cavity cleaning device and an oral cavity cleaner.The oral cavity cleaning device comprises a machine shell, a motor, a pump mechanism and a support assembly; the motor, the pump mechanism and the support assembly are all arranged in an inner cavity of the machine shell, an output shaft of the motor is provided with a first flow channel penetrating through the output shaft, and the support assembly is connected with the inner shell wall of the machine shell. The pump mechanism comprises a liquid inlet end, a liquid outlet end and a power end, and the pump mechanism can enable liquid to be pumped into a pump cavity of the pump mechanism from the liquid inlet end and pumped out from the liquid outlet end; wherein the liquid outlet end is integrated on the support assembly, and the support assembly is provided with a second flow channel communicated with the liquid outlet end and the first flow channel. The oral cavity cleaning device and the oral cavity cleaner have the advantages of avoiding resonance, reducing noise and improving connection stability.

The invention discloses a wave energy integration device based on multi-resonance motion control, and belongs to the technical field of offshore power generation, the wave energy integration device comprises a semi-submersible platform, the semi-submersible platform comprises a plurality of buoys and a central stand column, each buoy is divided into an upper buoy and a lower buoy, the bottom of each buoy is provided with a base, and the central stand column is arranged on the base. A floating fan is arranged on the central stand column, the buoys and the central stand column are connected through a truss, a water tank is arranged in the lower buoy, a water pump is arranged at the bottom of the water tank, a guide rail is vertically arranged in the water tank, and a heaving wave energy device is arranged on the guide rail through a transmission device. By the adoption of the structure, complementary power generation of wind energy and wave energy can be achieved. Triple resonance of the liquid in the water tank, the built-in heaving wave energy device and the balancing weight is achieved, the wave energy power generation efficiency can be improved through multi-resonance motion control, meanwhile, heaving motion of the platform is reduced, and therefore the power generation stability of a draught fan and the safety of an integrated system are improved.

The invention discloses a metal corrugated pipe modal and flow-induced vibration test device, which belongs to the technical field of low-temperature fluid transmission, and comprises an adjustable corrugated pipe system, a circulating pipeline system and signal acquisition equipment, the circulating pipeline system comprises an upstream pipeline, a downstream pipeline and a load loading mechanism; liquid is extracted from the water tank in the upstream pipeline, and gas is introduced into the pipeline by the air compressor; an adjustable corrugated pipe system in the downstream pipeline is connected to the left side of a T-shaped three-way pipe, and a pipeline outlet is formed in the lower side of the T-shaped three-way pipe and communicated with the water tank; the load loading mechanism is connected to the right side of the T-shaped three-way pipe and is used for applying an axial load; the adjustable corrugated pipe system is used for fixing a corrugated pipe test piece and adjusting the effective length of the corrugated pipe test piece; and the signal acquisition equipment is used for collecting data of the corrugated pipe test piece under different working conditions. By simulating the internal flow effect and the modes and flow-induced vibration characteristics of the corrugated pipe in different bending and stretching states, various actual working conditions of the corrugated pipe for transmitting the low-temperature fluid can be simulated.

The invention discloses a high-efficiency cutting device for producing aluminum alloy thin-walled parts, which is used for high-efficiency cutting of ⊥-shaped aluminum alloy thin-walled parts, and includes a machine platform, on which a positioning device for positioning the ⊥-shaped aluminum alloy thin-walled parts is installed, and the positioning device includes a through-hole frame seat arranged on both sides of a cutting area, a rotating ring is installed on the through hole of the through-hole frame seat, and a conveying mechanism for conveying the ⊥-shaped aluminum alloy thin-walled parts is installed on the rotating ring, and a positioning mechanism for positioning the ⊥-shaped aluminum alloy thin-walled parts is installed at both ends of the conveying mechanism, and a driving mechanism for driving the positioning mechanism to rotate is also installed on the through-hole frame seat, and a cutting device for cutting the ⊥-shaped aluminum alloy thin-walled parts at the cutting area is installed on the machine platform. The present application makes the cutting amount and friction effect of the ⊥-shaped aluminum alloy thin-walled parts more uniform and stable, and at the same time, the heat dissipation effect during the cutting process is greatly improved.

The invention designs a linear heave compensation device based on a double-piston double-rod type energy accumulator, which belongs to the technical field of ocean engineering equipment, adopts the double-piston double-rod type energy accumulator as a coupling device of compensation power, is provided with a plurality of functional cavities, and connects a high-pressure gas cylinder group with a passive compensation gas cavity of the double-piston double-rod type energy accumulator to form a high-pressure gas cylinder group. Therefore, a passive compensation force is provided on the piston rod of the energy accumulator; the two-way variable pump is connected with two active compensation liquid cavities of the energy accumulator, active compensation force capable of controlling the magnitude and the direction is provided on a piston rod of the energy accumulator through a closed variable pump speed control and regulation loop, the passive compensation force and the active compensation force jointly overcome the load of the energy accumulator, and the piston rod of the energy accumulator is driven to move. And finally, the compensation cylinder is indirectly driven to realize a heave compensation function. In addition, the deepwater high-pressure environment pressure acts on the end portions of the energy accumulator load pressure liquid cavity piston rod and the compensation cylinder piston rod at the same time, and the deepwater pressure compensation function is achieved through pressure interaction offset. According to the invention, a plurality of operation modes and functions such as passive compensation, active compensation and water pressure compensation are realized, operation under different working conditions such as overwater, underwater and deepwater areas can be realized, and the device has the characteristics of novel structure, compact system, integration of multiple functions, high compensation precision and the like.

The invention discloses motor control equipment and a motor control method for a sine wave filter. The motor control method comprises the following steps: compensating a current feedback vector output by a driver through a filter state compensator to obtain a motor current feedback signal; a motor current feedback signal and a given signal are synchronously input to a motor controller for operation, a motor stator voltage given vector is obtained and output to a filter state compensator for further processing, and a driver output given voltage vector is obtained and serves as a voltage signal to control the bus voltage of the sine filter. According to the method, only the direct-current bus voltage and the three-phase output current of the driver are collected, the problem of hardware compatibility does not exist, the motor is controlled to run along with the given signal through external filter state compensation, high current control response bandwidth can be achieved, resonance is avoided, and stable running of the motor is guaranteed.

The utility model provides a self-propelled mowing and flattening machine, which belongs to the technical field of agricultural and animal husbandry machinery equipment, and comprises a frame assembly and a rear axle assembly arranged at the rear end of the frame assembly, the rear axle assembly comprises a main beam welding piece and a vertical pull rod, one end of the vertical pull rod is hinged with the middle part of the main beam welding piece, and the other end of the vertical pull rod is hinged with the middle part of the main beam welding piece. The other end of the spiral spring penetrates through the frame assembly and is limited through the spring pressing plate matched with the vertical pull rod, and the spiral spring is arranged on the vertical pull rod in a sleeving mode and located below the frame assembly; the two second shock absorbers are arranged at the two ends of the vertical pull rod respectively, one ends of the second shock absorbers are hinged to the main beam welding piece, and the other ends are connected with the frame assembly; axle parts are symmetrically arranged at the two ends of the main beam welding part, and rear wheels and friction dampers used for limiting random swinging of the rear wheels are arranged at the ends of the axle parts. The rear axle assembly comprises a spiral spring and a second shock absorber, impact on a rear axle is reduced, rear wheels are provided with friction dampers, random swinging of the whole machine along with the terrain is reduced, and driving safety is improved.

The invention relates to the technical field of inspection robots, in particular to a rail type inspection robot capable of automatically adjusting clamping force, which comprises a camera and an I-shaped rail, a mounting plate is arranged below the I-shaped rail, and two walking devices are rotationally arranged on the upper side of the mounting plate; and the walking device comprises a bottom plate rotationally connected to one end of the upper side of the mounting plate, two side plates are fixed to the two sides of the bottom plate, and supporting shafts are rotationally connected to the upper ends of the two side plates in a penetrating mode. Through the guide mechanisms on the two sides of the walking device, when the walking device moves, the multiple guide wheels of the guide mechanisms on the two sides roll along the side face of the I-shaped rail, the multiple guide wheels of the two guide mechanisms are attached to the surfaces of the two sides of the I-shaped rail correspondingly, and transverse supporting force is provided for the walking device during moving; when the walking device moves along the linear section of the I-shaped rail, the walking device can be prevented from generating transverse deviation, and the moving stability of the walking device is improved.

The invention provides a motor vibration noise control method and system based on modal resonance frequency prediction, and belongs to the field of motor control. The method comprises the following steps: acquiring each order of intrinsic mode frequency of the permanent magnet motor; a cost function parameter, a current constraint condition and a control target are set, and a model prediction control method is adopted to drive an inverter to operate, specifically, the current operation state quantity of the permanent magnet motor is collected; predicting a state response in a future finite time domain based on the operation state quantity; constructing a value function, and evaluating and optimizing a state change result; and selecting an optimal voltage vector, generating a pulse signal to drive an inverter to execute, obtaining a motor high-frequency electromagnetic force wave distribution condition, comparing the motor high-frequency electromagnetic force wave distribution condition with the intrinsic mode frequency of the permanent magnet motor, and optimizing an optimal voltage vector selection logic. The problems that harmonic waves are concentrated and resonance is easily caused by a fixed switching frequency modulation method in the prior art, and a passive suppression method is high in cost and poor in flexibility are solved.

The utility model belongs to the technical field of rust removal devices, and discloses a rust removal device for a steel structure, which comprises a support frame, a servo motor, a conveying roller, a transmission gear, a transmission rack, a sliding rail, a support sliding rod, a lifting mechanism, a connecting rod, a rotating motor, a polishing rust removal block, an adjusting mechanism and a rust slag collecting assembly, the conveying roller is arranged in the supporting frame and movably connected with the supporting frame, the right side of the conveying roller is fixedly connected with the left side of the transmission gear, the surface of the transmission gear is in meshed connection with the inner surface of the transmission rack, and the output end of the servo motor is fixedly connected with the right side of the transmission gear. The problems that when an existing rust removal device of a steel structure conducts polishing and rust removal on a component made of a steel structure material, the position of rust removal equipment cannot be adjusted, and when the short-point steel structure component is polished and derusted, the steel structure component shifts, so that rust removal on the component is affected are solved.

The invention discloses a wind power blade provided with liquid dampers and a preparation method of the wind power blade. 10-20 fish-shaped sheet type liquid dampers are arranged in series in the axial direction of an inner cavity of the blade in a section 10-20 m away from a blade tip, and the fish-shaped sheet type liquid dampers equivalently replace original blade webs in the section; the fish-shaped sheet type liquid dampers and the blade skin are bonded together through structural adhesive, and every two fish-shaped sheet type liquid dampers are bonded together through structural adhesive. The fish-shaped sheet type liquid damper is a sheet type prefabricated part with a fish-shaped section, the outer contour of the fish-shaped sheet type liquid damper is the clearance size of an inner cavity of the wing-shaped section of the blade, a flow guide partition plate perpendicular to the chord line of the blade is arranged in the fish-shaped sheet type liquid damper, and the inner cavity of the fish-shaped sheet type liquid damper is divided into zigzag and roundabout thin and long damping liquid flow channels by the flow guide partition plate. According to the blade provided with the liquid damper, vibration of the blade in the shimmy direction can be effectively restrained in the blade operation and shutdown states.

The invention relates to the technical field of particle detection, and discloses a device for detecting particle filling saturation based on artificial intelligence, which comprises a driving box, an ultrasonic transmitter, an ultrasonic receiver and a detection box, the ultrasonic transmitter and the ultrasonic receiver are fixedly connected to two sides of the top of the driving box, and the top of the driving box is fixedly connected with the detection box. The interior of the detection box is fixedly connected with an L-shaped mounting shell, the interior of the driving box is provided with a vibration assembly, the interior of the L-shaped mounting shell is provided with a deflation assembly, the interior of the driving box is provided with a limiting assembly, and the vibration assembly and the limiting assembly are matched for use, so that the tank body is fixed through the limiting assembly; the driving motor drives the cam to rotate through the driving rod, the cam drives the extension rod to move through the knocking disc, when the cam does not make contact with the knocking disc any more, the spring is not stretched by the extension rod any more and then recovers to the original shape, vibration generated by the spring is transmitted to grain in the tank body through the containing groove, and therefore the effect of avoiding resonance is achieved.

The invention discloses an aerostatic spindle rotation error simulation method under the influence of a speed effect, which considers the influence of centrifugal force, gyroscopic effect and other speed effects on spindle rotation errors, and establishes an aerostatic bearing-rotor system dynamic model under the influence of the speed effect to obtain a spindle rotation trajectory to research the spindle rotation errors. The method comprises the following steps: establishing an air static pressure bearing-rotor system model according to the structure and working principle of an air static pressure main shaft; establishing a dynamic matrix model of the aerostatic bearing-rotor system under the influence of the speed effect according to the vibration characteristics of the main shaft; processing the vibration signal to obtain an amplitude-frequency curve of the main shaft system under the influence of the speed effect; the translation displacement and deflection angle of the spindle vibration are superposed, a rotation track of a bearing-rotor system under the influence of the speed effect is established, and then the influence of the speed effect on the rotation error of the aerostatic spindle is researched according to the result.

The invention relates to the technical field of household appliances, and discloses a pipeline system which comprises a refrigerant pipe, a fixing rubber block, an air pressure adjusting mechanism, a vibration sensor, a compressor frequency determining module and a controller assembly. The controller assembly is connected with the air pressure adjusting mechanism, the vibration sensor and the compressor frequency determining module and used for controlling the air pressure adjusting mechanism to adjust the air pressure of the air bag for fixing the rubber block according to the vibration frequency, detected by the vibration sensor, of the pipeline system and the compressor operation frequency obtained by the compressor frequency determining module. The air pressure of the air bag is adjusted according to the frequencies of the refrigerant pipe and the compressor, so that the vibration frequency of the pipeline system avoids the frequency of the compressor, resonance between the refrigerant pipe and the compressor is avoided, the vibration amplitude of the refrigerant pipe can be effectively reduced, noise is reduced, and the overall stability of the pipeline system is improved. The invention further discloses a control method for preventing resonance of the pipeline system.

The utility model discloses a composite vibration isolation module structure which comprises a vibration reduction mechanism and a steel plate spring installed in the vibration reduction mechanism. Connecting mechanisms are arranged on the left side and the right side of the vibration reduction mechanism correspondingly, and one side of each connecting mechanism is connected to the bottom end of the base in an attached mode. The damping mechanism comprises a base, limiting grooves are formed in the left side and the right side of the top of the base, and first springs are fixedly connected to one sides of the interiors of the two limiting grooves. One end of the first spring is fixedly connected with a sliding block, and the bottom of the sliding block is slidably connected with the limiting groove. The ends, away from the first springs, of the sliding blocks are fixedly connected with particle dampers, the ends, away from the sliding blocks, of the particle dampers are fixedly connected with the limiting grooves, the vibration isolation and noise reduction requirements of vibration source equipment can be met through the vibration reduction mechanism, and resonance can be well avoided; and by arranging the connecting mechanism, the damping mechanism can be quickly disassembled and assembled without using any tool, so that the working efficiency is improved.

The invention provides an air conditioner control method and device, electronic equipment, a readable storage medium and an air conditioner, and is applied to the technical field of air conditioner control. The air conditioner control method comprises the steps that the running frequency and running time of a compressor of the air conditioner are obtained; under the condition that the operation frequency and the operation time meet the stable operation condition, the outdoor environment temperature of an outer fan of the air conditioner is obtained; determining the resonance speed of an outdoor fan of the air conditioner according to the operation frequency of the air conditioner; according to the outdoor environment temperature, the first initial rotating speed range of the outdoor fan is determined, and the initial rotating speed ranges corresponding to different outdoor environment temperatures are different; according to the resonance rotating speed and the first initial rotating speed range, the target rotating speed of the air conditioner is determined, the air conditioner is controlled to operate at the target rotating speed, and the target rotating speed is obtained by shielding the resonance rotating speed in the first initial rotating speed range. According to the air conditioner, the resonance condition can be avoided, the purpose of reducing noise of the outdoor fan is achieved, the frequency output continuity of the compressor can be improved, and stable operation of the air conditioner is guaranteed.

The invention discloses a random detuning type track vibration reduction system and a design method thereof.The structure comprises track pieces and vibration reduction units, the track pieces are arranged on a track plate in groups at intervals, the multiple vibration reduction units are arranged on the inner sides and the outer sides of the track pieces or on the track plate, and the multiple vibration reduction units on the same side of the track pieces are distributed corresponding to the longitudinal periodicity of the track pieces; the vibration reduction units on the two sides of the rail piece are symmetrically arranged or arranged in a staggered mode. The main frequency of the vibration reduction unit is close to the band gap frequency of the track structure, the vibration mode of the vibration reduction unit and the vibration mode of the track structure are mutually coupled, so that the resonance structure of the vibration reduction unit and the ballastless track structure generate a coupling effect, the band gap range is enlarged, and the mass, rigidity and installation position parameters of the vibration reduction unit are designed to be randomly distributed. According to the random detuning type design method, the vibration reduction range can be further widened, vibration of the track structure cannot be increased, the vibration reduction unit does not need to be replaced along with service time prolonging or environment changing, and the vibration reduction capacity is effectively improved.

The invention relates to the technical field of household appliances, and discloses a pipeline system which comprises a refrigerant pipe, a fixed rubber block, a rubber block adjusting mechanism, a vibration sensor, a compressor frequency determining module and a controller assembly. The controller assembly is connected with the rubber block adjusting mechanism, the vibration sensor and the compressor frequency determining module and used for controlling the rubber block adjusting mechanism to adjust the hardness of the fixed rubber block according to the vibration frequency, detected by the vibration sensor, of the pipeline system and the compressor operation frequency obtained by the compressor frequency determining module. The hardness of the fixed rubber block is adjusted according to the frequency of the refrigerant pipe and the compressor, so that the vibration frequency of the pipeline system is kept away from the frequency of the compressor, resonance between the refrigerant pipe and the compressor is avoided, the vibration amplitude of the refrigerant pipe can be effectively reduced, noise is reduced, and the overall stability of the pipeline system is improved. The invention further discloses a control method for preventing resonance of the pipeline system.

The present invention relates to the technical field of steel structure bridge construction, and proposes a reinforced steel structure bridge, including abutment supports, bridge piers, steel structure bridge decks and guardrails, wherein the lower ends of the abutment supports are fixedly installed on the front and rear sides of the upper ends of the piers by expansion bolts, and the upper ends of the abutment supports are fixedly installed on the front and rear sides of the lower middle part of the steel structure bridge deck by expansion bolts. The shock waves generated by the vibration of the steel structure bridge deck are absorbed by the transverse and longitudinal absorption components, and the longitudinal shock waves of the diagonal support seat are counteracted by springs four and three, thereby counteracting and weakening the longitudinal shock waves generated by the longitudinal steel structure bridge deck vibration, and counteracting the oblique shock waves generated by the steel structure bridge deck vibration, further realizing multi-directional counteracting and weakening of the shock waves generated by the steel structure bridge deck, thereby interfering with the shock waves of the steel structure bridge deck and avoiding resonance.

The invention relates to the technical field of household appliances, and discloses a rubber block for fixing refrigerant pipes, which is used for fixing a plurality of refrigerant pipes and comprises a rubber block main body and an expansion module. The rubber block main body is fixedly connected with a plurality of refrigerant pipes; the expansion module is arranged in the rubber block body and can extrude the rubber block body through expansion to adjust the structural rigidity of the rubber block body. The vibration frequency of the refrigerant pipe can avoid the frequency of the compressor, resonance between the refrigerant pipe and the compressor is avoided, the vibration amplitude of the refrigerant pipe can be effectively reduced, the stress risk of the whole pipeline system is reduced, and the whole stability of the pipeline system is improved. The invention further discloses a pipeline system.

The invention discloses a vibration reduction process method based on combination of a liquid medium and a double-mass sphere, and particularly relates to the technical field of machining, which comprises the following steps: step 1, by utilizing the principle that the sphere can freely float in the liquid medium, placing two kinds of spheres with different densities in the liquid medium, under the action of centrifugal force generated by rotation of the workpiece, the ball body is attached to the inner surface of the workpiece to form a layer capable of absorbing vibration energy, and the vibration energy of the workpiece is transmitted to a liquid medium and a machine tool system; 2, the high-density balls mainly absorb vibration impact energy, and the low-density balls efficiently transmit self vibration displacement to a liquid medium in a liquid volume discharging mode (displacement) mainly by means of the large density difference between the low-density balls and the liquid medium. The problems caused by vibration in precision machining of the hollow thin-wall slender shaft are solved.

The utility model discloses an electronic device capable of balancing internal air pressure, which comprises an electronic device shell and a sounding main body arranged in the electronic device shell, a first cavity is arranged in the electronic device shell, the electronic device shell is characterized in that the sounding main body comprises a loudspeaker shell and a loudspeaker unit arranged in the loudspeaker shell, and the first cavity is arranged in the first cavity. A first cavity is formed in the loudspeaker shell, a second cavity is formed in the loudspeaker shell, a plurality of balance holes are formed in the loudspeaker shell, the balance holes are used for communicating the first cavity with the second cavity, a waterproof breathable film is arranged on the loudspeaker shell, and the waterproof breathable film is used for covering the balance holes. According to the utility model, air pressure balance between the inside and the outside of the electronic equipment can be kept all the time, resonance or noise of the casing is prevented, and the use experience is improved.

This invention relates to the field of single-phase circuit fault location technology, specifically to a method and system for tracing single-phase circuit fault points. When measuring distributed capacitance, this application generates a rectangular oscillating wave, output to the capacitor under test, and uses an integrating circuit to measure the voltage value. The capacitance value is then confirmed based on the voltage value. Since distributed capacitance exists between conductors and its value is related to the conductor length, by measuring the distributed capacitance, the length of the conductor can be determined, i.e., the distance to the fault, thereby determining the fault location. This application can accurately locate fault points in wall-buried or underground circuits, reducing operating costs, and has the functions of accurately locating line fault points and testing the length of broken wires.

The present invention is applicable to the technical field of electric power facilities, and provides a transformer, including a voltage transformer body; a spiral groove is provided on the outer peripheral side of the voltage transformer body; an upper spiral baffle and a lower spiral baffle adapted to the spiral groove are fixed on the outer peripheral surface of the voltage transformer body; a spiral conveying channel is formed between the spiral groove and the upper spiral baffle and the lower spiral baffle; a magnet ball adapted to the same is rolled in the spiral conveying channel; connectors are fixedly connected at both ends of the spiral conveying channel; a launch assembly is fixed between the two connectors by fastening bolts. The magnet ball of the device rolls downward in the spiral conveying channel under the action of gravity, and the magnet ball rolls into the launch assembly, and re-enters the spiral conveying channel through the launch assembly, and the magnet ball continuously rolls around the voltage transformer body to demagnetize the voltage transformer body, effectively avoiding ferromagnetic resonance, and improving the service life of the equipment.

This application belongs to the field of semiconductor processing technology, specifically relating to a backlight reflective layer printing device and its application. This application effectively controls the vibration generated during the printing process by optimizing the mechanical structure and position design of the frame, support plate device, and multi-axis spindle, reducing the deviation between the actual operating path and the planned path of the piezoelectric jet valve. This significantly improves the stability of the piezoelectric jet valve operation and the printing accuracy. Furthermore, this application, by setting up a micro-adjustment device, a positioning system, an inkjet calibration system, and a needle alignment device, and utilizing their coordinated relationship, can precisely correct printing parameters such as the jetting position or jetting volume of the piezoelectric jet valve. Therefore, based on the aforementioned stable printer body structure, the coating quality of the backlight reflective layer obtained by piezoelectric jet printing will be further improved. Thus, the backlight reflective layer prepared using this invention has better thickness uniformity and a better reflective effect.

The present invention discloses a liftable rubber bearing with an air spring, belonging to the technical field of bridge shock absorption. It includes an upper pier and a lower pier arranged oppositely, and the upper pier and the lower pier are connected by support columns. The support columns include connecting cylinders, rubber bonding blocks and a number of air elastic columns. The connecting cylinder is provided with a number of uniformly distributed air elastic columns penetrating along its circumferential direction. The air elastic columns can extend or shorten along the axis direction of the support column, and the connecting cylinder is filled with the rubber bonding blocks. By arranging a number of air elastic columns that can expand and contract along the axis direction of the support column in the circumferential direction of the support column, using the elastic characteristics of the air elastic columns, as the vibration load of the rubber bearing increases, the bearing capacity of the rubber bearing increases, and the air elastic columns can suppress the vibration amplitude and avoid resonance. When the impact load increases, the stiffness also becomes larger, ensuring a good vibration isolation effect.

The application provides a parameter optimization method and system of an integrated inductance filter, a terminal and a storage medium, relates to the technical field of regulator parameter optimization, and comprises the following steps: obtaining an inductance temperature parameter, a filter capacitance value and an actual voltage value; analyzing the inductance temperature parameter and the filter capacitance value to determine a filter cutoff frequency and an effective inductance value; analyzing the actual voltage value, the filter cutoff frequency and the effective inductance value to determine an inductance adjustment amount; obtaining an initial proportional gain and a current output current; analyzing the inductance adjustment amount, the effective inductance value, the initial proportional gain and the current output current to determine regulator optimization parameters; and controlling a preset regulator to work according to the regulator optimization parameters. The application has the effect of ensuring the stability of regulator operation.

This application discloses a method for calculating the vibration isolation of ship vibration isolation devices based on isolator type spectrum data, relating to the field of ship vibration isolation design. The method includes: acquiring the type spectrum data and impedance test data of the target isolator; determining the stiffness and damping parameters of the target isolator based on the type spectrum data and impedance test data; constructing a finite element model of the ship vibration isolation device; inputting the stiffness and damping parameters of the target isolator into the finite element model for calculation, and obtaining the vibration isolation calculation results of the target isolator. This method can efficiently utilize isolator type spectrum data to conduct vibration isolation calculation and evaluation of ship vibration isolation devices during the ship design phase, avoiding resonance between the natural frequency of the vibration isolation device and the excitation frequency of the equipment, and improving the vibration isolation effect.

The invention provides a power assembly and a vehicle with the power assembly, the power assembly comprises an integrated shell and a stator rotating mechanism, the integrated shell is internally provided with a containing cavity, the containing cavity is internally provided with a motor shaft, a first motor unit and a second motor unit, the first motor unit and the second motor unit are both arranged on the motor shaft, and the stator rotating mechanism is arranged in the containing cavity. The first motor unit and the second motor unit are arranged in the axial direction of the motor shaft in a spaced mode. The stator rotating mechanism is connected with a stator of the second motor unit, and the stator rotating mechanism is rotatably arranged relative to the side wall of the containing cavity so as to adjust the stator angle of the second motor unit. By designing the stator rotating mechanism, the circumferential angle of the stator of the second motor unit is adjusted, and noise and resonance of the motor are reduced.

The application discloses a heat treatment device and method for photovoltaic module recycling, and belongs to the field of photovoltaic module recycling, and comprises a heat treatment room, a vibrating platform, a lifting mechanism, a clamping mechanism and a fixing seat. The photovoltaic module can be placed on the fixing seat, the heat treatment room can heat the area where the fixing seat is located, and the heating temperature of the heat treatment room can make the EVA adhesive film become a solid jelly-like film. The adsorption mechanism can adsorb the glass layer or the back plate of the photovoltaic module and drive the glass layer or the back plate to move upwards. The EVA adhesive film in the photovoltaic module is adjusted to a solid jelly-like film by low temperature, the vibrating platform causes intense relative movement between the back plate and the battery plate and between the battery plate and the glass layer, thereby breaking the EVA adhesive film in the middle, and the glass layer, the battery plate and the back plate are disassembled. After disassembly, the high-pressure blowing mechanism is used to remove the EVA adhesive film remaining on the glass layer, the battery plate and the back plate. In the whole process, the EVA adhesive film is not dissolved and harmful gas is not generated.