222 results about "Potential energy" patented technology

The invention relates to the technical field of wind-solar storage power station operation control, and discloses a wind-solar storage multi-energy complementary power station cooperative operation method and system. The method comprises the following steps: constructing a wind-light fluctuation rate phase plane, defining a coupling stable elliptical region and generating a multi-source coupling state tag; an energy storage response performance plane is constructed, a dynamic dead zone threshold parameter is calculated, a dynamic respiration hexagonal boundary is established, and the penetration depth is calculated to generate an energy storage effective action instruction; and constructing a virtual energy gravitational potential energy field by utilizing an energy storage effective action instruction, calculating virtual potential energy heights of independent physical nodes and nonlinear flow resistance characteristics of a virtual energy transmission pipeline, and analyzing a virtual potential energy height difference and a virtual energy flow velocity to obtain a final power distribution scheme. Precise classification of fluctuation modes is achieved through geometric topology, the dynamic breathing hexagon is utilized to consider battery life and stability control requirements, the problem of lagging of multi-target optimization calculation is solved based on the physics field theory, and the operation efficiency of a power station and the friendliness of a power grid are remarkably improved.

The invention discloses an injection-production regulation imbalance quantitative diagnosis method based on fluid potential energy, and the method comprises the steps: extracting a streamline track space coordinate sequence and corresponding point oil reservoir parameters based on a dynamic permeability field, a pressure field and an injection-production streamline field; constructing a three-dimensional fluid potential energy field model in the injection-production unit, and dividing dominant seepage, a retention zone and a transition zone based on the injection-production unit through potential energy gradient tensor; establishing a seepage potential index LS by taking the flow line penetrating pore volume as a stability weighting factor and combining the potential energy gradient intensity; on the basis of LS sorting, a potential energy-volume two-factor accumulation curve is constructed, the development non-equilibrium degree is represented through curve form parameterization, and the envelope area of the accumulation curve is calculated and used for representing the oil reservoir flow field development non-equilibrium degree and the development effect of each type of injection-production unit. According to the method, fluid potential energy and a two-factor cumulative distribution concept are introduced into computational logic, and unified and quantitative characterization of an oil reservoir flow field and an injection-production unit is realized in combination with a seepage mechanism of the injection-production unit.

The invention discloses a stern shaft sealing device for a ship, and relates to the technical field of ship equipment. The device comprises a tail shaft barrel, a tail shaft, a sediment intercepting assembly, a first sealing unit and a pipeline system. And a sealing structure is arranged in a gap between the stern shaft and the stern shaft barrel. The first sealing unit comprises four sealing leather cups which are arranged in the axial direction and divide the interval into a first installation cavity, a gas cavity, a second installation cavity and a cooling liquid cavity, and the pipeline system is communicated with the gas cavity and the cooling liquid cavity so as to maintain pressure. The core is a buffer structure in the first mounting cavity and the second mounting cavity, and the buffer structure comprises a sealing ferrule, an adjusting assembly and an abutting assembly. When the seawater pressure suddenly increases, the buffer structure converts impact kinetic energy into elastic potential energy and gas compression potential energy through elastic deformation, pressure conduction and the like, pressure buffering is achieved, meanwhile, the sealing performance is dynamically enhanced, seawater backflow is prevented, the ship navigation safety is guaranteed, and the reliability and stability of the sealing device are improved.

The invention discloses a tethered satellite system dynamics modeling method considering perturbation factors. The tethered satellite system dynamics modeling method comprises the steps that a geocentric coordinate system, an orbital coordinate system of a Kepler orbit where a tethered satellite system is located and a body coordinate system of a unit satellite are established; according to the movement of the centroid of the tethered satellite system on the orbit, the generalized coordinates are the distance from the centroid of the system to the earth center and the true anomaly of the orbit, the Lagrange function of the centroid of the system is obtained; according to the movement of the unit star relative to the centroid, the generalized coordinates are the distance between the unit star and the centroid, the relative first rotation angle and the relative second rotation angle, the relative Lagrange function of the unit star is obtained; comprehensively considering perturbation factors to obtain non-spherical earth, third gravitational force and solar pressure perturbation potential energy; establishing a system kinetic equation considering comprehensive perturbation factors; and obtaining a complete Lagrange equation of the tethered satellite system. The error problem caused by the fact that the master satellite directly serves as the mass point of the system and the influence of comprehensive perturbation on system motion is not considered is solved, and the number of the slave satellites is not limited.

The invention relates to the technical field of composite material structure dynamics analysis, and provides a method and system for predicting the inherent frequency of a three-phase functionally graded composite material conical plate, and the method comprises the steps: employing an improved Halpin-Tsai model to calculate the equivalent parameters of a GPL-containing two-phase composite matrix, solving the equivalent parameters of a three-phase composite layer, and calculating the inherent frequency of the three-phase composite material conical plate. The method comprises the following steps: constructing a nonlinear geometrical relationship between a displacement field and a strain field, calculating a stiffness coefficient of each layer, constructing kinetic energy of the three-phase composite material conical plate, calculating an energy coefficient according to the stiffness coefficient of each layer, constructing potential energy of the conical plate according to the energy coefficient, and constructing a modal displacement function by adopting a Chebyshev polynomial and a boundary function. And establishing a characteristic equation based on a minimum potential energy principle and solving to obtain the inherent frequency of the three-phase composite material conical plate. According to the method, efficient calculation of the inherent frequency of the three-phase composite material conical plate is achieved, and the reliability and engineering application value of structural dynamics analysis are remarkably improved.

The invention discloses a magnetic performance dynamic compensation method of a magnetic latching relay suitable for a wide temperature range environment, and relates to the field of magnetic performance dynamic compensation, and the method comprises the steps: obtaining the real-time temperature data and real-time load voltage data of the relay, outputting a basic driving energy parameter, and obtaining the real-time temperature data of the relay based on the real-time temperature data; constructing a three-dimensional rigidity potential energy curved surface dimension reduction solution equivalent rigidity coefficient, predicting mechanical collision kinetic energy at the moment that a movable contact is closed, generating a critical rebound energy threshold value, constructing an ideal convergence track meeting physical deceleration constraint, executing inverse dynamics solution, generating a composite step driving waveform instruction, and performing dynamic deformation on the composite step driving waveform instruction. A relay coil is driven by executing the composite step driving waveform instruction, the motion state vector of a movable iron core is calculated in real time through a flux linkage observer, mechanical rebound is recognized, active magnetic damping adjustment is triggered, the movable iron core is forcibly clamped in a magnetic maintaining balance area, a movable contact can be forcibly locked at a conduction position, and the magnetic field is controlled. And a false pull-in fault is thoroughly avoided.

The application provides a kind of ionic liquid electric spray micro force calculation method, device and electronic equipment, it is related to data processing field, the method is carried out original molecular dynamics simulation in the negative gradient calculation of position to atomic potential energy and obtains the force model, the micro force decoupling of ionic liquid electric spray under molecular dynamics simulation is executed;Based on the micro force model, the molecular dynamics trajectory data is recalculated by modifying the molecular dynamics simulation code parameters, the pre-data of different micro forces is obtained, and the atomic force calculation result is output based on the pre-data of different micro forces;The atomic force calculation result corresponding to the steady state part of system is calculated by time and space average, and the spatial distribution calculation result of micro force and electric field is obtained;After a spatially uniform distribution of constant electric field is applied to the system, the first external electric field received by the charged atom is calculated using the above scheme, and the applied electric field and the calculated electric field are consistent, which verifies that the scheme is executed without error.

The invention relates to the technical field of flowmeter calibration, and discloses a tandem type gas flowmeter calibration device which comprises a main body, and a plurality of connectors are fixedly connected to the top of the main body. Thrust is applied to the spring at the top of the sliding plate in the sliding process of the sliding plate, potential energy is accumulated while the spring shrinks after the spring is subjected to the thrust, then the sliding plate cannot continue to move at the moment after the spring completely shrinks, the measuring rod stops moving after the sliding plate stops moving, and therefore positioning of the measuring rod is completed. The situation that when a worker pushes the measuring rod to move towards the interior of the main body to meter subsequent gas, the worker excessively pushes the measuring rod in the installation process, so that a detection block at the bottom of the measuring rod collides with the inner wall of the main body is reduced; therefore, errors of the measuring rod during metering can be reduced, and the calibration quality can be improved at the same time.

The embodiment of the invention discloses a simulation calculation method and device for a thin shell transient jump behavior, a medium and equipment. The method comprises the steps that a thin shell finite element analysis model is established; performing time sequence simulation analysis on the transient jump behavior of the thin shell, and in each time step, calculating a strain change rate characteristic value spectrum, and obtaining a nonlinear strength index and a local stiffness spectrum radius of each unit; when the non-linear criterion index of the unit is greater than a threshold value and the local stiffness spectrum radius is greater than the threshold value, dividing the unit into an explicit domain unit and improving the calculation precision by adopting a sub-step size control technology, otherwise, dividing the unit into an implicit domain unit; a self-adaptive step length technology is adopted, and the calculation efficiency is improved through large-step-length propulsion; calculating an incremental potential energy function, and judging whether the thin shell is about to enter a deformation bifurcation point or not by adopting a stability criterion; and constructing a deformation tentative displacement vector by adopting the fastest descending direction of the potential energy function, and accurately capturing real physical paths of jumping behaviors under various working conditions.

The invention relates to the technical field of computer vision, and discloses a public resource transaction behavior intelligent supervision and early warning system based on deep learning, which utilizes kinetic energy gating and a speed potential energy field to accurately lock an object keeping rigid motion with a hand, and fundamentally avoids the risk that a static background is misjudged as an operation target; meanwhile, through reverse optical flow reconstruction and gradient direction structured residual verification, a real entity with a three-dimensional volume and a shadow virtual image are accurately distinguished by utilizing a material shielding effect, and interference of dynamic shadow and reflection is thoroughly eliminated; and finally, on the basis of a risk potential field and kinetic energy flux accumulation mechanism, microscopic pixel motion is converted into macroscopic physical action quantity, a substantive transport process along an illegal path is accurately quantified through space-time integration, random jitter and withdrawing actions are effectively filtered, and high-confidence intelligent early warning of high-risk transaction behaviors is realized.

The application relates to the technical field of precision measuring instruments, and particularly discloses a multi-axis laser leveler automatic leveling system for decoration construction, which adopts an intelligent leveling mechanism based on a magneto-rheological fluid in view of the deficiencies of traditional leveling methods in speed, precision and environmental adaptability; through modules such as unconstrained posture platform generation, real-time horizontal signal acquisition, non-uniform guide magnetic field generation and rigid support structure formation, fast switching from coarse adjustment to fine adjustment is realized; and through the phase change of the magneto-rheological fluid between the liquid state and the semi-solid state, large-range passive self-leveling is realized through gravity potential energy, high-precision active leveling is realized through the non-uniform magnetic field guidance, finally, a rigid integrated support structure is formed to isolate vibration, and a high-stability reference laser line is projected; the application significantly improves the leveling efficiency and the anti-interference capability, reduces the manufacturing cost, and is suitable for high-precision positioning and leveling requirements in complex construction environments.

The invention relates to the technical field of light atmosphere, and discloses a light atmosphere effect generation method, which comprises the following steps: generating an initial wave function according to an intensity field, deducing on the basis of a potential energy field to obtain a first wave function, performing intensity calculation and phase extraction from the first wave function to obtain a second wave function, updating the direction field based on the second wave function to obtain an updated direction field and an enhanced optical flow field; three core advantages of light atmosphere generation are realized, firstly, deep coupling of quantum optics and neurocognition is realized, real response of human eyes is simulated through a phase-sensitive light response model, and light atmosphere distribution is enabled to conform to quantum propagation rules and human visual cognition characteristics in combination with a cognition attention focusing mechanism of a DQN model; and 2, a dynamic self-adaptive mechanism runs through the whole process, and a light current coefficient and object motion data are adjusted in real time through the pupil diameter to feed back a new light flow field so as to ensure that the environment change can be quickly responded.

The invention discloses a measuring system applied to a multi-parameter demonstration device, and particularly relates to the technical field of measuring devices.The measuring system applied to the multi-parameter demonstration device comprises a liquid cylinder, a guide rod, a guided wave radar liquid level meter, a water outlet pipe, an electrode pool and an electrode, one end of the water inlet pipe away from the electrode pool is communicated with the liquid cylinder; the floating plate is coaxially clamped to the liquid cylinder in a sliding mode, the floating plate is provided with a penetrating hole allowing the guide rod to freely pass through, the floating plate is provided with an exhaust hole in a through hole form, the upward face of the floating plate is provided with an exhaust unit, and the exhaust unit and the exhaust hole are used in a matched mode; and the elastic unit is arranged on the guide rod and endows the floating plate with potential energy for downward movement. According to the guide wave radar liquid level meter, downward elastic abutting acting force is generated on the floating plate through the elastic unit, then the floating plate can generate an extrusion effect on cleaning liquid in the liquid cylinder, the water surface of the cleaning liquid is not prone to generating a large flowing state, and the influence on the detection precision of the guide wave radar liquid level meter is avoided.

The utility model discloses a walking beam potential energy recovery energy-saving hydraulic system, and belongs to the technical field of hydraulic pressure. The system comprises a control system, a hydraulic pump, an oil cylinder, an energy accumulator set and a reversing valve set composed of seven reversing valves and proportional valves. The four working modes are switched through the control valve set. Small-flow driving is achieved through a differential loop during no-load rising. When the load rises, the energy accumulator releases pressure oil and supplies the pressure oil to the rodless cavity; when the load descends, oil in the rodless cavity is recycled to the energy accumulator to store potential energy; and oil flows back to the oil tank for circulating cooling during no-load descending. The gravitational potential energy recycling device can recycle gravitational potential energy in the descending process of a mechanical load, when load equipment needs to ascend again, hydraulic pressure of the energy accumulator is released and used for supporting ascending of the load, and the hydraulic energy is converted into the gravitational potential energy again. In the process of switching the system from no-load rising to load rising, pressure impact caused by switching of the reversing valve is limited on the valve group and is not transmitted to an oil cylinder and equipment.

The invention relates to an aerogel microstructure reconstruction method and system based on potential energy driving, belongs to the technical field of aerogel materials, and solves the problems of low aerogel microstructure reconstruction precision and difficult porosity control in the prior art. The method comprises the steps of generating target particles based on aerogel particle characteristics, generating a current Brownian motion parameter based on a random diffusion model, calculating aggregation potential energy when the target particles displaced based on the current Brownian motion parameter are in contact with an existing aggregation particle cluster, and when a potential energy threshold value is reached, calculating the current Brownian motion parameter. Determining the target particles and the existing aggregated particle cluster as a current aggregated particle cluster; and calculating the particle number of the current aggregated particle cluster, calculating the current porosity of the current aggregated particle cluster when the contact particle number requirement is met, and outputting the microstructure of the current aggregated particle cluster as the microstructure of the reconstructed target aerogel if the target porosity is reached. And effective control and accurate reconstruction of the porosity of the aerogel microstructure are realized.

The utility model discloses a self-adaptive compensation mechanism based on rotation damping, and belongs to the technical field of auxiliary measurement tools, a mechanical structure of the self-adaptive compensation mechanism is tightly combined with a longitudinal damping compensation mechanism and a transverse damping compensation mechanism, and stability and precision during multi-angle rotation can be achieved; the longitudinal damping compensation mechanism and the transverse damping compensation mechanism can provide continuous longitudinal and transverse elastic potential energy for the rotating structural part, so that infinitesimal displacement or deviation caused by angle change or external force is effectively compensated, and when the rotating structural part rotates at different angles, the longitudinal and transverse elastic potential energy can absorb vibration and impact and can also absorb vibration and impact. By means of the design, the dynamic performance of the device is improved, and the reliability and precision of the device in a complex measurement environment are remarkably improved.

The invention relates to the technical field of geologic model analysis, in particular to a coal bed gas fracturing three-dimensional well network seam network design method based on a geologic model, and the method comprises the steps: firstly constructing a three-dimensional discrete geologic model containing grid node mechanical parameters, and generating a three-dimensional dynamic induced stress potential energy tensor field; performing low-potential-energy gradient optimization calculation by using the field to obtain a shaft space topological coordinate avoiding a high-potential-energy area so as to reduce the well wall instability risk; meanwhile, fracture extension simulation is cut off through an equipotential surface threshold value in the field, and hydraulic fracture geometrical morphology parameters matched with formation energy constraint are accurately determined; and finally, integrating the parameters to generate an optimized three-dimensional well pattern seam network design scheme, and realizing efficient and safe fracturing design based on the rock mass accumulated deformation energy distribution characteristics.

The present invention relates to an energy storage and delivery system (100) comprising a crane (120) or an elevator cage (1200), wherein the crane or elevator cage is operable to move one or more masses (1300) from a lower altitude to a higher altitude to store energy (e.g., via potential energy of the masses in the higher altitude), and the crane or elevator cage is operable to move the one or more masses from the higher altitude to the lower altitude (e.g., by gravity) to generate electricity (e.g., via kinetic energy of the masses as they move to the lower altitude). The masses move an equal vertical distance between the lower altitude and the higher altitude.

The invention relates to the technical field of heat treatment heating control, in particular to a temperature control method and system for a vacuum heat treatment furnace. According to the embodiment of the invention, the resistance multiplying power sequence is obtained by comparing the preset reference resistance sequence with the working condition resistance sequence, the overall heat capacity scale characteristics of the load are identified according to the statistical characteristics of the resistance multiplying power sequence, the heat capacity scale factor is introduced, the compactness of the load loading structure is identified based on the change characteristics of the resistance multiplying power sequence, and the hysteresis retention coefficient is introduced. And determining a sliding start deviation according to the heat capacity scale factor, so that the large heat capacity load smoothly approaches the target temperature by self inertia, and temperature overshoot is eliminated. And constructing an excess integral calculation function by using the heat capacity scale factor and the hysteresis retention coefficient so as to decouple the kinetic energy component and the potential energy component in the accumulated integral term. And the problem that the process time is prolonged due to the false arrival phenomenon caused by the surface temperature drop of the compact load due to the cold source restraint of the core part is solved.

The invention relates to an output group having a planetary roller gear (90), which has an input shaft rotatably mounted in a drive housing and two gear nuts (111, 131). The gear nuts are mounted so as to be rotationally fixed relative to a gear housing and so as to be displaceable in the translational direction, and the gear housing or a gear spindle forms an output element (151) of the output group. The output element is mounted in the drive housing so as to be rotationally fixed and is guided in the translational movement directions in the drive housing. A storage device for potential energy (141, 145) which can be repeatedly charged and discharged is provided in the force flow between each gear nut and the gear housing, and an approaching movement of the gear nut and the gear housing relative to each other, the approaching movement being caused by a rotation of the input shaft when the output elements are inhibited, charges the potential energy storage device associated with one of said gear nuts. The potential energy storage device supplies kinetic energy to an at least temporary energy sink. By virtue of the invention, an output group is developed with which a breakaway pulse can be applied in two drive directions.

The invention relates to the technical field of supporting, in particular to a supporting collapse prevention device which comprises a supporting box, portable assemblies are installed at the lower ends of two supporting plates of the supporting box, each portable assembly comprises two fixing frames, and two hydraulic rods are fixedly installed in each fixing frame. According to the invention, impact force of vibration drives each group of telescopic rods to move in each group of damping rods and compress each group of springs, each group of springs absorbs kinetic energy through elastic deformation and converts the kinetic energy into elastic potential energy for storage, the potential energy is released after external force disappears, and vibration energy is consumed through repeated deformation. The vibration amplitude is reduced, vibration reduction protection is conducted on the supporting box, and the situation that the supporting box generates fatigue damage or displacement due to continuous vibration, soil on the inner wall of the foundation pit loses stability, the supporting structure loses efficacy, local collapse or overall collapse of the foundation pit is caused, and construction safety and the surrounding environment are endangered is avoided.

The application provides a high ground stress tunnel surrounding rock stability analysis method and device, relates to the technical field of tunnel safety, and comprises the following steps: acquiring tunnel information, wherein the tunnel information comprises section information, historical monitoring data and real-time monitoring data; performing numerical simulation according to multi-dimensional characteristics in the tunnel information and extracting characteristic parameters; optimizing a random forest regression model based on a chaotic sparrow search algorithm, inputting the characteristic parameters into the optimized regression model for prediction, and obtaining surrounding rock prediction results; inputting parameters of the surrounding rock prediction results into a preset surrounding rock physical model to calculate a potential energy function, performing cusp catastrophe analysis on the potential energy function, and constructing a bifurcation set equation; performing state discrimination based on the bifurcation set equation and a preset surrounding rock instability constraint condition, and outputting a stability result. The safety problems of tunnel face instability convergence deformation, collapse and peeling caused by surrounding rock instability are solved.

The invention relates to the technical field of power system design, in particular to a three-dimensional GIS (geographic information system)-based power transmission line tension pay-off analogue simulation system, which comprises a three-dimensional terrain acquisition result set generated by acquiring lead, terrain and construction information and merging matched data, and a slope direction energy response data set generated by reconstructing terrain based on elevation and gradient. Connecting the control points according to a potential energy distribution sequence to form a continuous line track, analyzing stress and redistributing tensile force, generating a line tension distribution data set, loading tension data to simulate a pay-off process, and outputting a power transmission line tension pay-off analogue simulation result. According to the method, terrain potential energy, slope direction and tension are fused in a space coordinate system, terrain and line stress are coordinated, a path extends along a potential energy gradient, node tension is balanced after reconstruction and time sequence correction, mapping of potential energy response, slope direction extension and tension transmission is formed, pay-off mechanics is mapped into a stable path in real time, it is guaranteed that the line is consistent with the terrain, and the method has the advantages of being simple in structure and convenient to operate. And the coordination, the precision and the reliability are improved.

This invention proposes an early warning system and method for the impact of ecological submerged breakwaters on nearshore seabed morphology under tsunami wave action. The system includes: a feature extraction module that collects water pressure data inside and outside the breakwater and establishes a high-energy potential difference time window; a potential energy analysis module that retrieves data within the high-energy potential difference time window and performs differential analysis of the vertical gradient to generate the permeability per unit volume of the seabed surface; an erosion analysis module that obtains the loss coefficient and corrects the static critical initiation shear stress to establish a time-evolving erosion resistance threshold sequence; a concealment identification module that identifies concealed scour zones; and a graded early warning module that quantifies and accumulates the surplus characteristics of shear strength in concealed scour zones using sediment transport rates to obtain morphological loss characteristics, performs stability assessment of the breakwater support structure, and triggers graded collapse early warning. This invention achieves the identification and dynamic early warning of concealed scour risks under low flow velocity backgrounds by quantifying soil weakening caused by seepage.

The invention discloses a gear pair meshing stiffness calculation method considering a thermoelastic coupling effect, which relates to the field of gear transmission, and comprises the following steps: establishing a gear temperature field model and a contact model by utilizing a finite element method, obtaining a gear heat conduction matrix and a structural stiffness matrix, and calculating to obtain gear meshing stiffness and tooth surface load distribution based on an actual tooth surface equation. Calculating tooth surface heat flux density based on tooth surface load distribution, tooth surface friction coefficient and relative sliding speed of each meshing position to obtain a gear thermal load matrix, calculating to obtain an equivalent node load matrix according to a gear heat conduction matrix and the thermal load matrix, and calculating to obtain tooth surface thermal deformation by combining the equivalent node load matrix with a gear structure stiffness matrix. And repeating the steps to obtain the meshing rigidity of the gear pair under the thermoelastic coupling effect. According to the method, the gear contact state iterative solution model based on the potential energy method, the matrix polycondensation method and the slicing thought is established, the requirement for computing equipment is lowered, and the solution efficiency is improved.

The application relates to the technical field of electric energy distribution regulation, and discloses an intelligent manufacturing execution method for regulating and controlling rubber forming temperature, which comprises the following steps: collecting voltage and current data of a controlled thermal load loop power distribution side, determining instantaneous physical power and establishing an energy efficiency audit factor, using the factor to weight and correct physical energy values to construct a virtual thermal potential energy model representing a thermal enthalpy state, introducing an external mechanical load feedback signal and adjusting a thermal potential energy saturation threshold, identifying endogenous disturbance power in a controlled object by calculating energy deviation residuals, and adjusting output duty cycle parameters of power electronic power devices. The application converts lagging temperature feedback into electric energy flow integral control through a virtual thermal potential energy balance architecture, effectively eliminates the influence of power supply side voltage fluctuation and internal disturbance of a controlled object on energy balance, and improves electric energy utilization efficiency and controlled state robustness.

The invention discloses a transient stability evaluation method and device for a multi-VSG parallel system. The method comprises the following steps: obtaining a power system model and a transient energy function according to the system; the transient energy function comprises a kinetic energy function and a potential energy function; obtaining a critical stable energy value according to the power system model and the transient energy function in combination with a BCU method; constructing a first model for obtaining a dynamic coupling relationship between VSGs based on a PINN network; training the first model according to a preset data set to obtain a second model; solving a transient energy function according to the real-time state vector of the system, and solving a path related item in the transient energy function in combination with a second model to obtain a real-time energy value; and if the real-time energy value is greater than the critical stable energy value, determining that the system is unstable, otherwise, determining that the system is stable.

The application belongs to the technical field of cutting simulation, and particularly relates to a cutting deformation zone dislocation instability judgment method based on molecular dynamics simulation, atomic scale simulation data of a cutting process is obtained; dislocation line length parameters, defect atomic space distribution parameters and atomic potential energy parameters are extracted from the simulation data; a dislocation burst index is determined based on the dislocation line length parameters, a defect concentration coefficient is determined based on the defect atomic space distribution parameters, and a potential energy fluctuation coefficient is determined based on the atomic potential energy parameters; three types of indexes are respectively subjected to benchmark normalization to obtain corresponding normalized judgment values; a comprehensive instability index is determined according to the normalized judgment values; and whether the cutting deformation zone is in a dislocation instability state is judged according to the relationship between the comprehensive instability index and a preset instability critical value. The time-varying characteristics, space distribution characteristics and energy change characteristics of dislocation evolution are included in the unified judgment framework, and compared with a single index analysis method, the dislocation instability state of the cutting deformation zone can be more comprehensively reflected.

The application provides an AUV gravity center adjusting mechanism, an underwater detection system and a laying and recovering method thereof. The AUV gravity center adjusting mechanism is arranged in the AUV and comprises at least one movable mass and a guide member for guiding the movable mass to move along a preset path. The guide member is formed with at least one low potential energy area and at least one high potential energy area. The movable mass spontaneously tends to and stays in the low potential energy area under the action of a gravity field, so as to adjust the gravity center position of the AUV in each working mode. The technical scheme of the application utilizes the spontaneous rolling of the movable mass under the action of the gravity field to realize the gravity center adjustment, without a special driving structure. The switching process is quick and reliable, and the working mode can be flexibly switched in real time in a single task. In the horizontal cruising mode, the AUV can stabilize the gravity center at the middle section, cooperate with the vertical propeller to realize smooth hovering, and avoid shortening the endurance time due to additional power consumption.