405 results about "Thermal simulation" patented technology

The invention discloses an equipment temperature adjusting method fusing a long short-term memory network, and particularly relates to the technical field of temperature control, which comprises the following steps: determining the deployment position of a sensor through thermal simulation, collecting multi-source heterogeneous data, dynamically adjusting the sampling frequency in combination with the temperature and the load current change rate, and adjusting the temperature of the sensor; after data preprocessing, an attention mechanism enhanced LSTM prediction model is constructed, a time sequence sample data set is divided according to equipment thermal response characteristics, training is carried out, and an optimal model is obtained through early stop mechanism optimization; predictive feedback double-closed-loop regulation and control is achieved based on the optimal model, outer loop PI control is combined with an integral separation mechanism to generate a basic control quantity, an inner loop outputs a correction quantity through fuzzification, reasoning and defuzzification, an actuator is driven after superposition, and safety linkage is triggered synchronously; constructing an incremental data buffer pool to screen effective samples, and adaptively updating model parameters by adopting a layered fine tuning strategy; the temperature regulation and control precision and the long-term self-adaptive capability are obviously improved, and the over-temperature risk of equipment is reduced.

The invention relates to the technical field of electric vehicle power battery thermal management, and discloses a temperature change-based power battery thermal management system, which comprises a thermal simulation pre-judgment end, a sensor network end, a dynamic liquid cooling control end, a BMS decision end and a fault diagnosis module, aiming at the technical defects of out-of-control temperature difference, response hysteresis and leakage risk caused by static flow channel design of the existing liquid cooling system, breakthrough is realized through a three-dimensional technical architecture: a CFD (Computational Fluid Dynamics) prejudgment layer: automatically calibrating sensor distribution points based on temperature field standard deviation, and improving temperature difference identification precision; according to the dynamic valve control layer, an electromagnetic three-way reversing valve is adopted to execute a directional temperature control strategy, an edge battery cell is preferentially introduced under the low-temperature working condition, and heat dissipation is enhanced under the high-temperature working condition; according to the redundant safety layer, the valve body and the pipeline are integrally formed, the leakage rate is reduced, and flow maintenance under single-point failure is achieved through a double-water-inlet parallel pump source. The method has the effects of improving the convergence speed of temperature difference between modules, reducing the attenuation rate of battery life and reducing the risk probability of thermal runaway.

The invention relates to the technical field of surface mounting control, and discloses an SMT surface mounting optimization control method and system based on multi-source data, and the method comprises the steps: collecting current surface mounting information, comparing the current surface mounting information with optimization judgment parameters, and judging whether to carry out surface mounting optimization control or not. When it is judged that optimization is carried out, historical SMT patch image data are collected, and defect feature vectors are obtained; and constructing an electrical attribute vector and a three-dimensional space distribution model of the soldering paste, executing thermal simulation calculation, and obtaining a thermal field distribution diagram of the component mounting area. And taking the defect feature vector, the electrical attribute vector and the thermal field distribution diagram as multi-source input, inputting the multi-source input into a multi-head attention neural network model, and outputting a patch optimization control parameter group. And driving the surface mounting equipment to execute surface mounting operation according to the surface mounting information and the surface mounting optimization control parameter group. According to the invention, the mounting reliability, customization capability and self-adaptability are improved, and precise and high-quality mounting control of complex special-shaped devices and high-temperature-sensitive elements can be realized.

The invention relates to a thermal simulation numerical simulation method of a multi-physics field architecture with CFD as a core, and belongs to the technical field of cross of computational fluid mechanics and heat transfer science. The method comprises the following steps: constructing a geometry and a conformal / non-conformal grid, presetting a model library, establishing association between a region and a physical field through physical group division, confirming a boundary and initial parameters, and screening a core simulation model; dividing an independent control volume based on a core numerical model, converting an area component and a volume component through integral operation, discretizing a boundary flux to construct a parameter matrix, then solving an equation set, and synchronously optimizing the grid quality; calculating a boundary flux and matching a discrete format, a turbulence model and a corresponding multi-physical field coupling model; original data are screened and processed, and cloud picture results such as temperature and flow field are generated through visualization. Accurate simulation of a multi-physics coupling scene is achieved, the precision and stability of thermal simulation under complex working conditions are improved, and efficient and reliable technical support is provided for engineering design optimization and performance evaluation.

The invention discloses a rapid thermal simulation method and system for a semiconductor power assembly, and relates to the technical field of semiconductors, and the method comprises the steps: collecting a voltage V (t) signal and a current I (t) signal of the semiconductor power assembly in real time through a voltage and current sampling circuit, constructing a power pulse input sequence A, and carrying out the hot carrier accumulation analysis according to the power fluctuation change amplitude; introducing a transient thermal resistance function Zth (t), fitting the transient thermal resistance function Zth (t) with a hot carrier pulse response index Mcx after numerical integration to analyze junction temperature change caused by power pulse, and evaluating an equivalent junction temperature dynamic change rate; when the analysis result is that the thermal drift out-of-control trend exists, thermal risk analysis is carried out, and thermal risk state assessment is generated; the simulation model optimizes thermal model parameters and outputs thermal control suggestions through a rollback correction path, and the working state of the semiconductor power assembly is automatically adjusted. According to the method, real-time monitoring and effective prevention and control of thermal runaway can be realized, and the reliability and safety of the semiconductor power assembly are improved.

The invention discloses a mobile phone thermal simulation method and system based on multi-physics field coupling, relates to the field of mobile phone thermal simulation, and constructs hybrid simulation coupling machine learning and physical solution. A machine learning agent model and a throttling logic script are innovatively introduced. The machine learning agent model is used for quickly predicting the temperature according to the current power consumption so as to instantaneously respond to the power consumption change; and the throttling logic script is used for simulating a real temperature control frequency reduction strategy and dynamically adjusting the target power consumption at the next moment according to the predicted temperature. In this way, the original black box temperature control logic is explicit, and a power consumption-temperature closed-loop feedback path is constructed. And finally, taking the adjusted power consumption as a heat source, and performing physical field solving by a traditional CAE solver. Therefore, the problem of time scale difference between heat conduction and electrical change is effectively solved, and efficient and accurate simulation of true performance and temperature performance of the mobile phone in a long-time high-load scene is realized.

The invention provides a visual detection method for interface water droplet induced electron generation in a high-temperature and high-pressure hydrocarbon-water system, and belongs to the technical field of in-situ analysis of electrons in mixed fluid. The detection method comprises the following steps: preparing a fused quartz capillary reaction cavity; loading a sample in a fused quartz capillary reaction cavity: sequentially inserting a thin capillary syringe filled with a silicomolybdic acid aqueous solution and a thin capillary syringe filled with a hydrocarbon liquid into the fused quartz capillary reaction cavity, and injecting the silicomolybdic acid aqueous solution and the hydrocarbon liquid; and carrying out visual detection on the water droplets. Through the visual fused quartz capillary thermal simulation experiment device, the color change of the water droplets at the interface of the silicomolybdic acid aqueous solution and the hydrocarbon fluid under the conditions of high temperature and high pressure is visually displayed, and the color characteristics of the water droplets are observed in real time by using a microscope, so that whether the water droplets induce electron generation or not is judged; the problem that electrons generated by water droplets cannot be directly observed and detected under high-temperature and high-pressure conditions is solved.

The invention discloses a side plate type heat exchanger performance testing system and method, and relates to the technical field of heat exchanger testing, and the system comprises a computer which is used for constructing a digital twinborn model, generating multiple groups of dynamic working condition data, inputting the multiple groups of dynamic working condition data into the digital twinborn model to obtain dynamic performance data, screening according to the sensitivity coefficient of each piece of dynamic performance data to obtain sensitive working condition data; the test equipment executes the sensitive working condition data and collects actual measurement state data of the side plate type heat exchanger; and the computer judges whether the performance of the side plate heat exchanger meets the design requirement according to the actually measured state data. Physical modeling is carried out on the heat exchanger in a digital twinning mode, heat exchange simulation is carried out on the heat exchanger, invalid test working conditions are deleted from a parameter set, only sensitive working conditions are reserved, and time, manpower and energy cost needed by testing is greatly saved.

The invention relates to a method for decoupling organic matter primary-secondary cracking hydrocarbon generation conversion rate based on a gold tube hydrocarbon generation thermal simulation experiment. The method comprises the following steps: step 1, acquiring kerogen gold tube hydrocarbon generation thermal simulation experiment data; step 2, parametric modeling of the kerogen hydrocarbon generation process; step 3, constructing a least square target model under a multi-constraint condition; step 4, performing nonlinear least square optimization solution under the constraint condition; and 5, calculating the hydrocarbon generation conversion rate. According to the method, conversion rate calculation is carried out on the cumulant of each hydrocarbon generation process obtained through decoupling, the conversion rate evolution rule of the kerogen oil generation, gas generation, crude oil cracking gas generation, non-reactive carbon formation and other processes along with maturity change in the crude oil cracking process can be obtained, and a quantitative basis is provided for refined hydrocarbon generation evaluation.

The invention belongs to the technical field of numerical simulation and damage intelligent detection, and relates to an aircraft surface structure damage infrared feature simulation and sample generation method. According to the method, through the design of the virtual interface layer and the secondary homogenization, the magnitude order improvement of the full-size transient thermal simulation efficiency is realized while the physical precision is ensured, and batch simulation of a large number of damaged working conditions becomes possible. The physical effect of a sensor of the infrared camera is simulated through high fidelity, so that a simulation image is highly consistent with real external field data in the aspects of noise, texture and other characteristics, and the'simulation-reality 'domain difference is effectively reduced. By directly associating the simulation process with the preset damage parameters, automatic, accurate and zero-error generation of the truth value information is realized, and the problems of high manual labeling cost and poor consistency are fundamentally solved. According to the method, an efficient and reliable data generation way is provided for training a high-precision and high-robustness external field intelligent detection model, and the method has a definite engineering practical value.

The invention relates to a method for decoupling organic matter primary-secondary cracking hydrocarbon generation conversion rate based on gold tube hydrocarbon generation thermal simulation-solid product pyrolysis experiment. The method comprises the following steps: step 1, kerogen gold tube hydrocarbon generation simulation and solid product rock pyrolysis experiment data acquisition; step 2, parametric modeling of the kerogen hydrocarbon generation process; step 3, constructing a least square model of multi-source experimental information collaborative constraint; 4, carrying out optimization solution under a multi-source experiment information collaborative constraint condition; and 5, calculating the hydrocarbon generation conversion rate. According to the method, conversion rate evolution characteristics of each hydrocarbon generation process are quantitatively represented, conversion rate calculation is performed on cumulant of each hydrocarbon generation process obtained through decoupling, and conversion rate evolution rules of kerogen oil generation, kerogen gas generation, crude oil cracking gas generation, non-reactive carbon formation and other processes along with maturity changes in the crude oil cracking process can be obtained; and a quantitative basis is provided for refined hydrocarbon generation evaluation.

The invention discloses a thermodynamic system parameter distribution method and device, and the method comprises the steps: S1, analyzing a block definition diagram and an internal block diagram from a SysML model to obtain a module structure description, a module value attribute, an interface specification of an equipment unit and a thermodynamic parameter description, and generating an analysis result, the analysis result comprises equipment unit port and connector information. And S2, based on the analysis result, mapping the equipment module to a simulation software element through name matching, and generating a steady-state thermal simulation model. And S3, associating the module value attributes with element attributes of the steady-state thermal simulation model through a parameter mapping mechanism, and generating attribute mapping data. And S4, generating a complementation parameter list according to the external design value and the heat balance demand. Therefore, the efficiency and accuracy of parameter allocation are improved, manual intervention is reduced, and it is ensured that the allocation result meets the requirements of system performance.

The invention discloses an aero-engine complete machine three-dimensional simulation debugging method and device and a storage medium, and belongs to the field of aero-engine aerodynamic thermal simulation. The core of the method is to systematically solve the problem of simulation convergence through a two-stage strategy of component gradient pre-convergence and complete machine dynamic adaptive coupling. And at the component level, steady pre-convergence of the flow field is realized through progressive physical loading and stability control aiming at a gas compressor, a combustion chamber and a turbine. At the complete machine level, dynamic calculation parameter adjustment and flow field stability control based on flow field real-time stability are adopted, and it is ensured that the coupling process is rapid and stable. According to the invention, geometric grid standardization, post-processing verification, variable working condition debugging and real-time monitoring abnormity processing functions are expanded. According to the method, the convergence efficiency, the success rate and the result credibility of simulation are remarkably improved, the calculation interruption rate can be reduced by more than 75%, and the method is suitable for engineering design and optimization of aero-engines.

The invention discloses a simulation method and system for microwave-induced heterogeneous rock heating fracture, and relates to the technical field of rock crushing engineering.The simulation method comprises the steps that an image of the surface of heterogeneous rock is obtained, and contour images and distribution characteristics of various mineral components in the image are extracted; establishing a microwave heating model in finite element software, and establishing a GBM numerical model in discrete element software; inputting the mineral composition contour image into finite element software, obtaining a pixel value, assigning the pixel value, and carrying out microwave heating simulation; and performing temperature assignment on the temperature discretization conversion, the GBM numerical model and the thermodynamic constitutive model as final temperature distribution, and performing thermal-mechanical coupling calculation on the GBM numerical model to obtain final temperature field distribution and a fracture mode. According to the method, the limitation of generating a numerical model through a traditional random function is broken through, the numerical model based on real mineral distribution is constructed through the image recognition technology and refined numerical modeling of the mineral crystal model, the accuracy is higher, and the method is more persuasive.

The invention discloses a direct current motor drive circuit layout optimization method based on thermal simulation, and relates to the technical field of circuit layout optimization. The method comprises the following steps: modeling circuit thermal characteristics, defining a thermal resistance network of a power device, considering a heat conductivity coefficient of a PCB, constructing an electric-thermal coupling model, setting boundary conditions, loading current and voltage, solving a temperature field by using a Joule law and a Fourier equation, defining layout variables, establishing an objective function containing junction temperature, temperature difference and cost, and performing iterative optimization by using a genetic algorithm. And thermal simulation optimization of the layout of the driving circuit is realized. The temperature field is accurately predicted, the heat management efficiency is improved, and the optimization period is shortened; thermal coupling influence is reduced, chip stability is guaranteed, multi-working-condition verification is reliable, heat dissipation is consistent with simulation, cost can be reduced, and safety and service life of a motor system are improved.

The invention relates to a method for identifying natural gas causes by using methane carbon and hydrogen isotopes, and belongs to the technical field of oil-gas exploration and development. The method comprises the following steps: (1) acquiring methane carbon and hydrogen isotope data of a natural gas sample in a target area; (2) respectively carrying out thermal simulation experiments on the oil-type gas hydrocarbon source rock sample and the coal-formed gas hydrocarbon source rock sample, determining methane carbon isotope characteristics of the oil-type gas and the coal-formed gas, and judging typical oil-type gas and coal-formed gas in the natural gas sample in the step (1) by combining geologic characteristics; and (3) performing methane carbon and hydrogen isotope clustering analysis on the typical oil-type gas and the coal-formed gas, establishing a methane carbon and hydrogen isotope identification chart of the oil-type gas and the coal-formed gas, and identifying the natural gas cause according to the identification chart. The judgment method is higher in accuracy, and a feasible way is provided for judgment of natural gas reservoir causes in a high heat evolution stage and in regions with complex causes.

The invention relates to the technical field of power battery thermal engineering and thermal safety, and discloses a liquid cooling-phase change coupling battery thermal management system based on a liquid phase rate weighting method, and the system comprises a battery module which is formed by stacking and arranging a plurality of single batteries along a first direction; the liquid cooling plate is arranged on the side surface of the battery module and is used for carrying out active heat dissipation on the battery module; the plurality of phase change material units are respectively filled between the adjacent single batteries; wherein the thicknesses of the plurality of phase change material units are non-uniformly distributed, the thickness of each phase change material unit is positively correlated with the corresponding average liquid phase rate reference value, and the average liquid phase rate reference value is the average liquid phase rate reference value of the corresponding phase change material unit under the same thickness setting condition. And the average liquid phase rate of the phase change material unit under the preset discharge working condition is obtained through thermal simulation calculation. According to the invention, the maximum temperature difference in the battery module is obviously reduced, the phase change process synchronization of each region is realized, the material utilization rate is improved, and the thermal stability of the system in the high-rate dynamic discharge process is enhanced.

The invention provides an optimization method for predicting the long-term welding reliability of a wire harness terminal and a conductor, and the method comprises the steps: collecting temperature and time data in a welding process, processing the data through a thermal simulation model, and obtaining the change trend of conductor lattice arrangement; according to the change trend of conductor lattice arrangement, the initial thickness and component distribution of oxide layer formation are obtained, and microstructure features of an oxide layer group are determined; aiming at the microstructure characteristics of the oxide layer group, simulating a long-term use environment by adopting an accelerated aging test to obtain a prediction curve of resistance increase; according to the quantitative model of the aging behavior, a performance evolution rule in the actual use environment is obtained, and the incidence relation between welding parameters and long-term reliability is determined; for a process scheme for improving the stability of a conductor, the resistance change of the conductor in a high-temperature environment is simulated and verified, and the accuracy of quantitative correlation is judged.

The invention discloses a PCB thermal management optimization method and system based on dynamic thermal simulation analysis, and relates to the technical field of PCB thermal management, and the method comprises the steps: collecting the dynamic power consumption data of a working scene of a PCB in real time, carrying out the transient thermal simulation analysis, obtaining the time-space distribution data of a temperature field, carrying out the thermal recognition of the PCB, and determining a plurality of key thermal regions; constructing a dynamic thermal resistance network; setting a thermal management constraint condition of the PCB, and formulating a thermal management strategy; and performing dynamic power distribution on the heat dissipation structure of the PCB, performing thermal management optimization according to a distribution result, and generating a thermal management optimization strategy to perform dynamic optimization of thermal management of the PCB. According to the method and the device, the technical problems of insufficient thermal management accuracy and low efficiency caused by the fact that the thermal management of the PCB is a static strategy and is difficult to adapt to dynamic power consumption change in the prior art are solved, and the technical effects of realizing dynamic optimization of the thermal management of the PCB and improving the accuracy and the efficiency of the thermal management are achieved.

The invention relates to the technical field of medical image processing and three-dimensional reconstruction, and particularly discloses a reconstruction and analogue simulation method based on a cardiac image. The method comprises the following steps: firstly, preprocessing an input CT or MRI medical image, and automatically segmenting a heart multi-tissue structure by using an nnUNetv2 model, including a plurality of anatomical regions such as atrium, ventricle, myocardial tissue and blood pool; and then performing topology repair, smoothing processing and label resampling on the segmentation result to obtain a three-dimensional label body with a continuous structure and a complete boundary. And based on the optimized tag body, constructing a heart three-dimensional surface model by adopting a Marching Cubes algorithm, and generating a multi-material volume grid suitable for finite element analysis. According to an electrode position and a radio frequency parameter set by a user, a radio frequency ablation simulation model based on a Pennes biological heat conduction equation and an Arrhenius model is established, a temperature field and a tissue thermal damage range are calculated, and a simulation result is displayed in a three-dimensional mode in an overlapping mode. According to the method, the integrated process from medical image automatic segmentation to heart three-dimensional reconstruction and thermal simulation is realized, the segmentation precision, the modeling efficiency and the simulation reliability are improved, and the method can be applied to application scenes such as surgical planning, preoperative evaluation and medical teaching.

The invention relates to the technical field of industrial automatic measurement and control communication, and particularly discloses multi-protocol fusion intelligent measurement and control host equipment, which comprises a data acquisition module, a health assessment module, a thermal simulation module and a cooperative control module. The equipment adopts a dual-core hardware architecture with a bottom plate and a top plate, integrates seven communication interfaces, realizes multi-protocol parallel processing through a hardware accelerator and a FreeRTOS system, the protocol switching time does not exceed 10ms, and the health assessment module adopts an online incremental learning recurrent neural network to calculate the health state index of the super capacitor module in real time, so that the super capacitor module can be used as the health state index of the super capacitor module. The thermal simulation module predicts the thermal runaway risk level based on an embedded finite volume method, and the cooperative control module dynamically adjusts the rotating speed of a fan and the switching frequency of a power supply by adopting a Nash equilibrium optimization algorithm, so that early performance attenuation recognition, thermal runaway risk prediction and intelligent cooperative control of the super-capacitor module in an extreme environment are realized. And the reliability and the safety of the system are obviously improved.

The invention provides a digital simulation interface system of a face satellite attitude and orbit control subsystem, and relates to the technical field of computer simulation. Interfaces are divided into two classes according to attributes, the first class is simulation class interfaces, and the second class is simulation class interfaces; the interface is used for initialization parameter setting, simulation process control, simulation target data acquisition and data interaction of a simulation state, a running log, a model event, energy simulation data, thermal simulation data and environment simulation data of an attitude and orbit control subsystem model; and the second type is a business type interface, and the interface is used for data interaction with other subsystems or the outside in the function operation of the attitude and orbit control subsystem. Definitions of the two types of interfaces can cover all simulation activities of a satellite attitude and orbit control subsystem, meanwhile, the related internal simulation activities and external simulation activities can be distinguished, and interface testing of a satellite digital subsystem model can be systematically carried out with the fewest units.

The application discloses a kind of spaceborne storage module packaging method, spaceborne storage module and satellite, the method includes obtaining the model of packaging circuit module;Thermal simulation experiment is carried out based on the model of packaging circuit module, and heat flux density distribution information is obtained;Target cooling area is determined based on heat flux density distribution information;Packaging circuit module is installed on substrate;First shielding layer is manufactured using metal material of first density;The model of second shielding layer is obtained;Micro-channel heat dissipation area is determined based on target cooling area;Second shielding layer is manufactured based on the model of second shielding layer using metal material of second density;Third shielding layer formed by coating material is prepared on the inner surface of second shielding layer, to obtain composite shielding shell;Composite shielding shell is fixedly installed on substrate through insulating adhesive layer and contains packaging circuit module, to obtain spaceborne storage module.The application makes that composite shielding shell has anti-radiation effect and heat conduction effect simultaneously, which greatly improves the heat conduction efficiency.

This invention discloses a model test device and method for curtain grouting and excavation of tunnels in high-temperature, water-rich and weak strata, comprising weak strata simulation system, working condition simulation system, curtain grouting system, and monitoring and data acquisition system. The weak strata simulation system is the main box used to fill the soft soil. The working condition simulation system includes a high geothermal simulation system, a water pressure simulation system with stepwise loading of water pressure and volume, and a three-dimensional confining pressure simulation system with stepwise controllable loading of confining pressure. The invention can realize the whole test process simulation of grouting reinforcement and excavation of tunnels in weak strata effectively under the action of confining pressure and geothermal heat, and it has a positive reference effect on actual soft stratum tunnel curtain grouting and safe excavation.

The invention discloses an annealing process system of 300MPa galvanized low-alloy high-strength steel for industrial production. Thermal simulation is used for carrying out continuous annealing process simulation on an acid rolling product of the galvanized low-alloy high-strength steel; the sample is heated to the temperature of 630-850 DEG C at the speed of 4 DEG C / S, heat preservation is conducted for 90 s, and then the sample is cooled to the room temperature at the speed of 10 DEG C / S; the steel comprises the following chemical components in percentage by mass: 0.06%-0.08% of C, less than or equal to 0.040% of S i, 0.35%-0.45% of Mn, less than or equal to 0.020% of P, less than or equal to 0.01% of S, 0.020%-0.050% of Alt, 0.010%-0.18% of Nb, 0.0008%-0.0020% of Ca and the balance of Fe. And the balance of Fe and impurities. The mechanical properties of products produced industrially in batches are as follows: the yield strength is 310-359 MPa, the tensile strength is 388-420 MPa, and the elongation is 29.5-40%.

The utility model discloses a Gleeble vacuum melting equipment device, which comprises a Gleeble main machine with a pressure head and a vacuum chamber, a melting device and a clamping and fixing device are further arranged in the vacuum chamber, and the melting device is connected to the pressure head through the clamping and fixing device. According to the smelting equipment disclosed by the utility model, the Gleeble thermal simulation testing machine is fully utilized, and the alloy can be quickly and conveniently smelted and new technological parameters of alloy smelting can be explored by controlling temperature rise and temperature drop at different temperatures and speeds in an experiment process, so that the time is saved, and the waste of materials is also reduced.

This invention relates to the field of electric drive technology, and particularly to a dynamic matching method, device, system, medium, and product for electric drive systems based on load spectrum driving. The method includes: acquiring load spectrum data based on the operating conditions of the electric drive system and the fatigue work cycle table of engineering machinery; classifying the load spectrum data, judging the motor's overload suitability, and compiling a cyclic load spectrum; obtaining the motor's theoretical temperature rise result and the motor's thermal simulation temperature result; dynamically adjusting the motor's thermal capacitance coefficient and thermal resistance coefficient based on the obtained motor theoretical temperature rise result and motor thermal simulation temperature result; and outputting the final motor thermal capacitance coefficient and motor thermal resistance coefficient. For redundancy optimization in motor overload matching, a closed-loop process of drive system load spectrum acquisition – load spectrum analysis – overload temperature rise theoretical calculation – motor thermal simulation verification is used to solve the problems of excessive redundancy, insufficient dynamic adaptability, and poor economy in traditional motor selection.

The invention discloses an evaluation device and method for the damage repair effect of an oil and gas well tubular column, and the device comprises a simulation tubular column which is provided with a containing cavity and a simulation leak; the pressure detection module is used for detecting the internal pressure of the simulation tubular column; the heating simulation assembly is used for heating the simulation tubular column; the pressurization simulation assembly is used for pressurizing the simulation tubular column; the spraying assembly comprises a pressure pump, a piston container, a connecting pipe and a spraying head which are sequentially communicated, the connecting pipe is provided with a shut-off valve used for controlling connection and disconnection of the connecting pipe, the spraying head stretches into the containing cavity through the connecting pipe, and the connecting pipe is configured to be capable of moving relative to the simulation pipe column so as to adjust the position of the spraying head relative to the simulation leak. By applying the method and the device, the actual repairing process of the pipe column in actual application can be more accurately simulated, and the accuracy of repairing effect evaluation is improved. And the repairing effect of the nozzle at different positions can be simulated, and the repairing process can be optimized.

The invention relates to the field of process simulation, and discloses an additive manufacturing numerical simulation method based on a thermal cycle curve, and the method comprises the steps: obtaining the physical performance parameters of a target component material; based on the physical performance parameters and related constraints of additive manufacturing, high-fidelity thermal simulation of the additive manufacturing process is carried out on the representative local area of the target component to obtain thermal historical data of the local area in the additive manufacturing process; extracting at least one thermal cycle curve representing the thermal history of the target component material from the result of the high-fidelity thermal simulation; establishing a global model of the target component; applying the thermal cycle curve as a thermal load to the global model; and based on the thermal cycle curve and clamping and heat dissipation boundary conditions of the target component, performing thermal-mechanical coupling analysis on the global model to predict stress and deformation of the target component after additive manufacturing is completed. The micro-channel additive manufacturing method can effectively improve the finished product quality of micro-channel additive manufacturing.

The utility model relates to the technical field of seepage heat transfer simulation, and discloses a high-efficiency seepage heat transfer simulation device in a high-temperature and high-pressure environment, which comprises a supporting mechanism for stable supporting, and a seepage sealing assembly for simulating a rock-soil layer in an earth crust is arranged at the upper end of the supporting mechanism. The upper end of the seepage sealing assembly is provided with a sealing heating monitoring assembly used for heating and monitoring fluid to be percolated, and the upper end of the sealing heating monitoring assembly is provided with a pressurizing mechanism used for pressurizing the fluid to be percolated in the sealing heating monitoring assembly. Simulation operation of seepage fluid is achieved, damage to equipment under the high-pressure condition is avoided, the driving mechanism accurately adjusts pressure through gear transmission, stable operation of a pressurization system and coordinated operation of the whole system are ensured, the precision of seepage and heat transfer simulation is improved, and the operability and safety of experiments are effectively improved.