103 results about "Wave pressure" patented technology

This invention provides a gas wave pressure regulation method and apparatus, gaseous wave pressure regulator (GWPR), associated with a pressure energy recovery system which can be used in the processes of petrochemical and liquid natural gas (LNG) industries to recover the lost energy in a regulating process where a pressure regulation is needed to reduce the pressure level fitting the operating conditions, but the spontaneous temperature is undesirable. The said method and apparatus employ a mechanism creating a unsteady periodic flow by means of gaseous wave resonant interactions to convert the energy between the pressure drop into the form of heat without using any moving parts. The said heat is reused inside the GWPR to eliminate or diminish the temperature drop associated with the pressure regulation. The said pressure energy recovery system comprises a primary GWPR followed by a primary heat exchanger, and a secondary GWPR linked by a secondary heat exchanger operated in series. The GWPR in the present invention consists of a flow rate controlling unit, a flow induction unit, and a pressure energy converting unit. The operation of the GWPR is based on gaseous wave interactions between shock wave in high speed jets and longitudinal oscillation of gas column in resonant tubes by which the pulsating flow production can recover the pressure energy lost in the regulating process.

The invention discloses a reverse arc-shaped bulwark. The bulwark comprises a front wall and a square caisson structure, wherein the front wall is of a continuous semicircular-cylinder-shaped arc-shaped wave-ward surface structure, and the square caisson structure is arranged behind the front wall. According to a computing method for total horizontal wave force of the reverse arc-shaped bulwark, computing is performed through the following formulas that P=KPPZ, and the correction factor KP=0.91. The reverse arc-shaped bulwark has the advantages that the reverse arc-shaped bulwark is similar to a straight wall type bulwark in vertical pressure distribution, the position nearby the static water level belongs to triangular distribution, and the position below the static water level belongs to parabolic distribution; according to annular pressure distribution of the reverse arc-shaped bulwark, when a wave crest acts, the wave pressure intensity of central section of each arc is the maximum and decreases with the increase of the angle of each arc; when a wave trough acts, the wave pressure intensities are basically equal and are evenly distributed. A revised Goda formula should be adopted for computing the total horizontal wave force of the bulwark, and computing and analysis show that the total horizontal wave force of the reverse arc-shaped bulwark is about 10% smaller than the wave force of the straight wall type bulwark of the same size.

The invention discloses an effect target device for shock wave pressure measurement of a target of a moving explosive field. The effect target device is characterized by comprising a base, an intermediate body, a response diaphragm, a cover plate, a sealing hole, a pressure leading hole, compression bolt holes, compression bolts, an auxiliary hole, and an auxiliary plate. When an external shock wave is applied to the effect target device, the wave is applied to five working areas of the response diaphragm through the pressure leading hole of the cover plate to cause plastic deformation and recession into the sealing hole below; a maximum deflection value is measured; and according to a dose-effect relationship between diaphragm deformation and an impact shock effect, an impact wave pressure peak value is obtained. According to the invention, the effect target device has the following advantages: the effect target device with the light weight is easy to arrange; the sealing performanceis good; the interference of the shock wave diffraction is eliminated; the effective range is wide; the pressure range capable of damaging the target is covered basically; a measurement problem of a large shock wave pressure changing range of the target of the moving explosive field is solved; the precision and reliability of the target pressure measurement in the moving explosive field are improved; and the need of the shock wave pressure measurement of the target of the moving explosive field is met.

The invention discloses an effect target structure for measuring a peak value of an impact wave pressure of a movable target and a testing method, and belongs to the field of impact wave pressure testing. Specifically, the structure can be used for measuring the impact wave pressure of a blast field of the movable target. The structure mainly comprises a pressure response membrane installation substrate (1), a central body (2), a pressure response membrane (3), a cover plate (4), a pressure response membrane sealing groove (5), a pressure response membrane pressure leading hole (6), a bolt installation hole (7), a compression bolt (8), and a fastening connection hole (9). The invention also discloses a method for measuring the impact wave pressure and mean load of the movable target. According to the invention, the effect target structure is installed on the movable target for measuring the impact wave pressure in a target region, and obtains the impact pressure and mean load of six points in a 500mm*126mm region according to a deformation value of the pressure response membrane (3).

The invention relates to the technical field of battery experimental facilities, and in particular relates to a device for testing the combustion performance of a power battery. The device is characterized in that after a battery is fixed on a test platform, the combustion testing is carried out through a double-way combustion hole, the gas flow can be controlled through a gas valve, further, the flame intensity is controlled, and thus the comparison test requirement on different batteries is met. Meanwhile, explosion impact wave pressure sensors are arranged on two sides of the batteries and in the direction of an anti-explosion valve, so that the sizes of impact waves generated in different directions when the batteries explode are tested, and the combustion performances of the batteries are compared quantitatively. The device can be used for quantitatively comparing the combustion performances of the different batteries; meanwhile, double-way combustion can enhance the testing speed, and increase the efficiency. During the testing process, the batteries can be charged and discharged, and the process that during use of the batteries on a vehicle, some batteries are on fire so as to cause influences on the safety performances of the other batteries under charge and discharge is simulated.

The invention discloses a wave pressure based method for measuring wave parameters and tide level of a sea-spanning bridge construction sea area. The method comprises specific steps as follows: step 1, a test point is selected in the construction sea area, a plurality of wave pressure sensors are annularly arranged on the outer surface of a steel pipe pile located in the test point at intervals, and the wave pressure sensors are located in the position 2-4 m lower than a mean water level of the low tide level; step 2, a wave pressure time travel curve corresponding to each wave pressure sensor is generated according to wave pressure values collected by the wave pressure sensor; step 3, one wave pressure sensor with the maximum wave pressure value in a certain time period is selected as a reference wave pressure sensor, and the wave pressure time-travel curve of the reference wave pressure sensor is taken as a reference wave pressure time-travel curve; step 4, the wave parameters and the tide level are calculated according to the reference wave pressure time-travel curve. The structure is simple, and the method is used for comprehensively measuring the wave parameters and the tide level.

The present invention relates to the field of laser processing, particularly to a metal crack repair method. According to the present invention, mainly based on metal device surface cracks, a microcapsule adhesive is used to fill the crack, and then a laser shocking peening method is used to repair the metal surface crack, wherein a repair agent microcapsule and a curing agent microcapsule are completely mixed according to a volume ratio of 15:2 to prepare the microcapsule adhesive; when the laser shocking peening is performed on the metal crack filled with the microcapsule adhesive and the surrounding area, the capsule wall of the microcapsule adhesive is broken under the effect of the laser shocking wave pressure and the repair agent and the curing agent outflow so as to adhere the crack and achieve the ideal adhesion effect; with the laser shocking effect, the crack and the surrounding area are strengthened, the surface layer structure is compact, and the mechanical property is significantly improved so as to effectively prevent the crack diffusion and the generation of the new crack; and the dual effect is provided.

This invention provides an array copper-manganese thin film super-high pressure sensor and its process method and its characters are that it comprises N pressure sensitive parts of array structure and thin film copper-manganese 2 and inorganic material sealed film 4 and the sensor adopts all thin film process. The sensor in this invention eliminates seal material high pressure sideway effect, which can make the sensor measurement accuracy at three to five percents and respond time reduces to twenty to forty ns. The sensor in this invention is mainly used to measure strong impact wave pressure such as in the measurement of armor or nuclear weapon explode impact wave pressure.

The invention discloses a high-impact wall pressure measuring device, which is mainly characterized in that the pressure measuring device is composed of a mounting seat, an isolation ring, a base, a compression screw, and a sensor; the sensor is installed in the central through hole of the mounting seat, The mounting seat is connected with the base and the compression screw through the isolation ring, and the compression screw is pressed into the base, and the base and the wall are fastened; when the shock wave or wall vibration causes the base to vibrate, the vibration of the mounting base is caused. However, due to the two polyethylene isolation rings, there is a non-rigid contact between the base and the mounting seat, which effectively isolates the transmission of vibration to the mounting seat. The remarkable advantage of the present invention is that it can isolate the propagation of the base vibration to the mounting base, effectively eliminate the influence of the base vibration of the explosion field on the performance of the sensor, realize the purpose of obtaining a complete and accurate shock wave pressure change curve, and meet the wall shock wave pressure of the internal explosion field Test requirements.

1. The Horizontal Fin is a marine vessel mechanism. It manufactures propulsion without the use of an engine, moving parts, or fuel. This assistance reduces human paddling labor.

2. The Horizontal Fin is also a marine vessel stabilizing mechanism. It accumulates equalizing water pressure to resist equal amounts of side to side wave pressures. Rough water and waves have mercilessly challenged the ability of the surfer to stand or fall. This will significantly “tip” the odds in favor of a successful ride.

The invention relates to a parameter optimization method for an air wave pressure massager based on a deep learning algorithm, relates to parameter optimization methods for air wave pressure massagers, and solves the problems of low accuracy and high retraining cost which are caused by the fact that existing deep learning is only trained once. The parameter optimization method for the air wave pressure massager based on the deep learning algorithm comprises the steps that 1, blood pressure and pulse data of a user is collected; 2, a deep learning structure model is established on a server; 3,a trained deep learning structure model is obtained; 4, the blood pressure and pulse data of the user is collected and input into the trained deep learning structure model, and massage intensity, massage frequency and massage positions of the air wave pressure massager are adjusted according to the output parameters of the air wave pressure massager; 5, the obtained trained deep learning structuremodel is trained through time T to obtain a new model; the deep learning structure model trained in step 4 is replaced with the new model, and step 4 is repeated. The parameter optimization method for the air wave pressure massager based on the deep learning algorithm is applied to the technical field of medical treatment.

The invention discloses a power module containing a special power terminal, comprising a chip, an insulating substrate, a heat dissipation plate, a power terminal and a shell, wherein the power terminal is welded on the insulating substrate in the manner of soldering or ultrasonic wave pressure welding. Because the power module comprises the power terminal in a special structure, the rigidity and the resistance of the power terminal can be balanced very well, and the reliability of a welding point is increased.

The invention discloses a simulation experiment device and a simulation experiment method for impact of landslide surges on piers. The simulation experiment device and the simulation experiment methodrelate to the technical field of pier wave pressure impact simulation experiments. The simulation experiment device for impact of landslide surges on piers comprises a water tank, piers, a sliding groove, a side bridge, a high-speed camera, pressure sensors and wave height sensors, wherein bank slopes are arranged on the inner walls of the water tank, the piers and the sliding groove are fixed onthe bank slopes, the side bridge is arranged between the piers and the sliding groove, the plurality of pressure sensors are arranged on the piers, the pressure sensors transmit acquired informationto a PC terminal by means of a multifunctional signal acquisition device, the wave height sensors and the high-speed camera are arranged on the side bridge, the wave height sensors detect the wave heights of surges, and the high-speed camera shoots the climbing of the surges on the piers and the change conditions of waves. By changing the positions of the piers, the simulation experiment device and the simulation experiment method can precisely simulate the geographical environment and distance of a landslide occurred in reality, and can simulate the similarities and differences of landslide impact pressure on the piers in various shapes in reality more flexibly.

The invention relates to an ultrasonic pressure sensor and an atmospheric pressure monitoring device using the ultrasonic pressure sensor. The ultrasonic pressure sensor comprises a pipe body provided with an air inlet, an ultrasonic transmitter arranged at one end of the pipe body and used for transmitting ultrasonic waves, an ultrasonic receiver arranged at the other end of the pipe body, and an outer shell which contains the pipe body, the ultrasonic transmitter and the ultrasonic receiver. The ultrasonic receiver receives an ultrasonic wave transmitted through air in the pipe body, and according to the received ultrasonic wave, outputs sinusoidal voltage, the amplitude of which is in proportion with the atmospheric pressure in the pipe body. The atmospheric pressure monitoring device can effectively detect barometric fluctuation with the amplitude ranging from 0.1Pa to 50Pa and the frequency ranging from 0.02Hz to 2Hz, and display in various direct-viewing manners the barometric fluctuation with negative impacts on the human body.

The present invention discloses a water permeability concrete barrier board and a preparation method thereof, and belongs to the field of hydraulic engineering and marine engineering. According to the water permeability concrete barrier board, the large doping amount fly ash cementing material or composite cementing material is adopted as the substrate, the nanometer bentonite modified potassium magnesium phosphate cement protection reinforcing steel bar or FRP bar is adopted as the reinforcement material, the reinforcing steel bar matching and protection surface parameter is calculated according to the used environment, and the water permeability concrete edge beam, the concrete floor protection plate and the water permeability concrete grid are subjected to cast-in-site and partial or whole precast so as to obtain the water permeability concrete barrier board, wherein the surface roughness is increased, and the water permeability effects of the communication hole between the edge beam and the internal of the grid is provided, such that the levee protection surface structure can be endowed with the water permeability energy dissipation, the maximum forward direction wave pressure intensity can be weakened, and the wave climb performance can be limited; and the 28 day compressive strength of the water permeability concrete of the water permeability concrete barrier board is more than 40 MPa, the levee top wave overtopping of the water permeability concrete barrier board is reduced by 15-25% compared with the ordinary barrier board, and the water permeability concrete barrier board can be used for the protection surface structure of the river bank, the sea bank and the training jetty of the sea bank, wherein the integrated precast barrier board can be reused.

The invention provides an integrated device for air wave pressure therapy and dynamic monitoring of pulse and blood pressure, relates to the field of medical equipment and aims to solve the problem that the function of an existing air wave pressure therapy instrument is monotonous, an electronic sphygmomanometer has difficulty in dynamic measurement of pulse and blood pressure. The inner side of afirst cuff is provided with a first airbag and a second airbag which are parallel, an air outlet passage of a micro air pump is divided into two channels, the two channels are connected with the first airbag and the second airbag through three-way control valves, and an air pressure sensor is arranged on the air outlet passage and used for measuring air pressure in the first airbag or the secondairbag; a main controller is used for controlling the three-way control valve to make the airbags communicate with the micro air pump or the external atmosphere, inflating or deflating of the airbagsis achieved, and the main controller also is used for receiving a pressure signal, calculating the pulse number and blood pressure according to the pressure signal and sending the pulse number and blood pressure to the outside. According to the device, air wave pressure therapy and pulse and blood pressure measurement are combined, and the device is used for massage therapy and dynamic monitoringof health data.

Disclosed is a simulation method for the pore pressure response of the sediment under the wave action. Included is a simulation device. The process of the simulation test comprises a preparation stepand a test step. The preparation step is to firstly, determine hydrodynamic parameters and a sediment type according to the requirements of working conditions of the simulation test and then completethe preparation and laying of a sediment sample, equipment installation and connection, the hydrodynamic parameters including the simulated water depth, wave type and wave parameters; and secondly, pre-load a water body in a chamber, turn on a stirring mechanism, pour the sediment sample for the simulation test into the chamber while stirring, add water into the chamber, seal the chamber, and thenstatically consolidate the sediment. The test step includes simulation of the working conditions and data acquisition. The simulation method of the invention improves the accuracy of the water tank test and reduces the error caused by scaling down; and simplifies the complicated wave motion process into the change in the volume of water to control the change in the wave pressure on the surface ofthe seabed, thereby greatly reducing the volume and cost of the traditional water tank.

The invention provides an air wave pressure device comprising multiple airbag bags; the airbag bag is provided with an air storage chamber on the side close to the human body, and the airbag bag is provided with a flexible air pipe on the other side away from the human body, and an inner wall of the air storage chamber is provided with an interface; one end of the flexible air pipe is provided with an air connecting pipe, wherein an air pipe of one of the airbag bags is detachably inserted into the interface of the other airbag bag; a one-way pressure valve connecting the flexible gas pipe andthe gas storage chamber is installed in the middle of the flexible gas pipe; the airbag bag covering the foot area has the highest gas pressure, and the gas pressure covering the calf area, the kneearea, and the thigh area is sequentially reduced; the airbag bag is also provided with a gas flow valve. The invention realizes the massage effect of inflating and pressing the foot to the calf region, the knee region and the thigh region in order to form a pressure difference, thereby improving the effect of the remote ischemic preconditioning caused by the air wave pressure device.

The invention provides a centrifugal model test wave cyclic loading simulating device and a testing method thereof. The simulating device is composed of a control part, a drive part and a force output part. An industrial personal computer of the control part is connected with a signal conditioning part through a data collecting card and is connected with a drive power amplifier through an adaptor. A drive power source of the drive part is connected with two exciters through the drive power amplifier. The two exciters of the force output part generates a wave acting force which is exerted to a research target in a non-contact mode through an armature hung on the center of the lower portion of a top cover of a model casing. The two exciters are provided with a horizontal displacement laser displacement sensor and a settling laser displacement sensor respectively. A force sensor is mounted in each exciter, and the output ends of all the sensors are connected with the industrial personal computer. The simulating device can simulate waves which are large in force amplitude and have the waveform being a sine wave (half-wave), can simulate wave pressures and wave suction forces with any proportion, and is long in duration; wave force can be conveniently regulated and controlled, arrangement of geotechnical centrifugal models is facilitated, operation is safe, and precise control is achieved.

The invention provides a breakwater model with a variable slope angle and an experimental system of the breakwater model. The breakwater model comprises a bottom supporting structure, a stress slope hinged to one end of the bottom structure, a top plate arranged at the other end of the stress slope, and a lead screw, one end of the lead screw is hinged to the stress slope, the other end of the lead screw is fixed to the bottom supporting structure, a through hole is formed in the top plate, and the lead screw penetrates through the through hole. During an experiment, the slope surface can be conveniently subjected to continuous adjustment of any angle from 20 degrees to 90 degrees through the lead screw so as to facilitate researching on the influence of angle change on the wave pressure distribution law, the wave pressure maximum value and the action position of the wave pressure maximum value, meanwhile, the climbing and crushing effects of waves on slopes of different angles can beobserved, and a foundation is provided for breakwater design.

The invention discloses an annular slit non-shaped-charge-cover type air gap energy concentration blast charging method based on detonation wave waveform modulation. In order to overcome the limitation that a conventional annular energy concentration device needs to be provided with a shaped charge cover and can only be used for special blasting, on the basis of the annular slit detonation wave waveform modulation technology, during common industrial explosive column charge detonation, an annular slit air gap energy concentration mechanism with the unlimited ring number is constructed, column waves different from waves formed by conventional columns charging detonation are generated, multi-stage annular detonation wave air gap energy concentration jet flow is formed along the charge axis, complex impact wave waveforms are generated in rock soil, the impact wave pressure and pulling(shearing) effect is remarkably enhanced so as to enhance the explosive detonation local damage capability, the charge annular explosive energy concentration degree and the adjacent blast hole charge explosive impact wave mutual effect are improved, and the purposes of improving the rock soil breaking effect and increasing the explosive energy utilization rate (or the blast hole utilization rate) are achieved.

The invention discloses a liftable type breakwater with a power generating function. The liftable type breakwater comprises a frame body, a transverse plate, a front wall, a power generating mechanism, a wave pressure sensor, a gas inlet valve, a water valve and a controller, wherein the front wall is fixedly connected with the front end of the frame body; the front wall is of a water permeable structure; the wave pressure sensor is fixedly arranged on the front wall from top to bottom; the transverse plate is transversely and fixedly connected in the frame body for dividing the frame body into an upper chamber and a water storage chamber; the power generating mechanism is fixedly arranged in the upper chamber; the front side wall of the upper chamber is of a gas permeable structure; the gas inlet valve is fixedly arranged in the upper chamber; a gas outlet of the gas inlet valve extends into the water storage chamber; the water valve is fixedly arranged on the water storage chamber; the water valve communicates with the inner part of the water storage chamber; and the controller is separately connected with the power generating mechanism, the wave pressure sensor, the gas inlet valve and the water valve. The liftable type breakwater has the advantages of being simple in structure, high in energy conversion rate and great in power generation amount, and can realize controllabletype lifting of breakwater to regulate elevation of a gas chamber, so that the breakwater reaches relatively high generating capacity to adapt to use under different wave conditions.