120 results about "Body dynamics" patented technology

The invention discloses an integrated fan pneumatic-hydrodynamic-servo-elastic-plastic coupling analysis system and method, and belongs to the technical field of offshore fan numerical simulation calculation. According to the method, a coupling model of an offshore wind turbine under the environment load effect is established, a rotor cabin assembly is simulated through a multi-body dynamics method, and interaction of a supporting structure and pile soil is simulated through a finite element method. By introducing a prediction correction loose coupling algorithm, joint simulation between a multi-body system and a finite element system is realized. The method is not only suitable for coupling dynamic response analysis of the offshore wind turbine under the action of conventional wind wave load, but also suitable for elastic-plastic coupling analysis of the offshore wind turbine under the action of extreme typhoon load or earthquake load. In addition, the method not only can be used for coupling analysis of the offshore wind turbine of a traditional steel supporting structure, but also is suitable for integrated coupling analysis of the wind turbine of a novel steel-concrete structure on land or on the sea.

Provided are a planning and control method for a legged robot, an apparatus, a robot, and a storage medium. The method includes: determining, based on the movement state and the swing parameter of each leg at the next moment, a foot-end reference state of each leg, and planning, based on a foot-end dynamic model and a discrete collision model, an impact-aware swing leg trajectory for a leg that starts to swing at the next moment; and performing, based on the movement state, the reference state sequence, and the foot-end reference state, whole-body control on the legged robot, and performing, based on a whole-body dynamic model and the discrete collision model, impact-aware whole-body control for a leg that is a supporting leg in planning but does not touch the ground.

The invention discloses a double-foot wheel-legged robot pose control method and device based on hierarchical cooperative control, a medium and a product, and relates to the field of robot control, and the method comprises the steps that a hierarchical cooperative control framework is constructed; the layered cooperative control framework comprises a balance controller and a whole body attitude controller; the balance controller determines a reference wheel joint driving torque based on a simplified inverted pendulum dynamic model according to the pose information of the upper mass center of the biped wheel-leg robot; the whole-body attitude controller performs optimization control on all joints of the biped wheel-leg robot by adopting an incremental model prediction control algorithm combined with a reference wheel joint driving moment based on a whole-body dynamic model; state information of the biped wheel-legged robot is obtained; according to the state information, a driving torque instruction of each joint is obtained based on a hierarchical cooperative control framework; and driving the double-foot wheel-leg robot to move according to the driving torque instruction of each joint. The precision, robustness and real-time performance of robot motion control can be improved.

The invention provides a service life prediction method and device for an industrial robot RV speed reducer, and relates to the technical field of speed reducer service life prediction.The method comprises the steps that an acceleration load spectrum is determined according to torque and time history data, and multi-stage loads in the acceleration load spectrum are woven into a program block spectrum according to a preset sequence; all levels of loads in the accelerated load spectrum serve as independent working conditions to be applied to the multi-body dynamic model for dynamic simulation, a load and time history curve set of the key weak component is obtained and input to the cumulative damage model for life calculation, the simulated predicted life is obtained, and a damage cloud picture is generated; taking the program block spectrum as a test loading instruction to carry out an RV speed reducer accelerated life test to obtain a test observation life and a physical failure morphology; if the two are in the corresponding preset deviation range, taking the simulated predicted life as the predicted life of the current RV speed reducer; the problems of long test period, high cost and low reliability of a simulation model are solved.

The invention belongs to the technical field of ocean new energy, and provides an anchor system multi-floating-body array wave flow motion response analysis method and system, and the technical scheme is that a joint simulation method of multi-body dynamics and computational fluid mechanics is adopted to carry out the comprehensive modeling and analysis of a mooring type multi-floating-body array, and the wave flow motion response analysis of the mooring type multi-floating-body array is realized. A universal joint connection structure for platform connection is designed, and an equivalent concentrated mass-spring unit is introduced to simplify modeling of a mooring chain. Joint simulation is implemented in a numerical wave generation and ocean current pool, and hydrodynamic force and structural response of the anchor system multi-floating-body array system under the steady-state ocean current and regular wave conditions is evaluated; the system studies the influence of the size of the floating ball, the weight of the mooring chain and the flow velocity on the hydrodynamic performance and the platform stability. And the performance requirements in a complex marine environment can be better met.

The invention discloses a multi-body system dynamics intelligent modeling calculation system and method based on a natural language, and belongs to the field of overall design of spacecrafts. The problems that in the prior art, when the simulation requirement related to extreme working conditions and strong nonlinear coupling is met, the period is long, manual experience is relied on, and the maintenance cost is high are solved. The system comprises a text segmentation embedding unit used for carrying out text segmentation embedding processing on a multi-body dynamics knowledge base and constructing a vectorized dynamics knowledge context; the large language model unit is used for receiving natural language task description input by a user, performing semantic understanding through LLM (Logistics Language Model) and generating a task analysis result according to dynamic knowledge context learning; and the task processing unit is used for classifying the tasks into inquiry tasks, command and control tasks or construction tasks according to the task analysis result, and calling corresponding modules according to LLM and MCP technologies. The method is used in the field of multi-body system dynamics modeling of spacecrafts.

The invention provides a self-adaptive wind-resistant slope roof photovoltaic tile system and a transmission mechanism fault diagnosis method thereof, and the method comprises the steps: initializing a digital twinborn body of a physical transmission mechanism, and carrying out the multi-body dynamics prediction of a control instruction sequence of a drive device based on the digital twinborn body; a simulation angle response sequence and a simulation vibration response sequence of the physical transmission mechanism in the current anti-wind adjustment action are obtained, and then the transmission ratio offset coefficient and the structure resonance abnormal index of the physical transmission mechanism are determined; determining response matching characteristics and excitation conflict characteristics of the physical transmission mechanism according to the transmission ratio offset coefficient and the structural resonance abnormity index; and carrying out abnormity judgment on the physical transmission mechanism based on the response matching characteristics, and positioning the fault position of the physical transmission mechanism through the excitation conflict characteristics when abnormity is judged to exist. Based on the scheme, fault diagnosis based on digital twinning virtual-real comparison can be realized.

The invention relates to a multi-body dynamics simulation modeling method for a laser radar control system of a paddy field laser land leveler, and the method comprises the steps: building a whole machine mechanical model based on a multi-body dynamics simulation environment, enabling a virtual marking point and a measurement function to be equivalent to a laser radar sensing module, and integrating an embedded controller based on a built-in calculation function of software, thereby achieving the simulation modeling of the laser radar control system of the paddy field laser land leveler. Full-link closed-loop simulation of'perception-decision-execution-response 'is realized in a unified platform; by simulating various road excitation and operation conditions, the tracking precision, response speed and stability of a control algorithm can be directly verified in a virtual environment, and parameter optimization is completed. The method solves the key problem that a control system lacks a real controlled object and excessively depends on a physical model machine in the early stage of development, achieves full-digital system-level verification and performance prediction, can remarkably shorten the research and development period and reduce the development cost, and belongs to the technical field of agricultural machinery control system simulation verification.

The invention relates to a strength analysis method for a lower control arm of a heavy truck, and solves the problems that the design iteration period is prolonged and the cost is increased due to the fact that a deviation exists between a traditional analysis method and a real working condition and the strength needs to be verified through a large number of bench tests in the later period. Selecting a lower control arm front end point, a lower control arm rear end point, a spiral spring lower end point and a spherical hinge point from the initial finite element model as nodes for extracting loads, endowing material parameters of the lower control arm: an elastic model, density and Poisson's ratio, and laying a foundation for building a multi-body dynamic model; when the multi-body dynamic model is built, template models of tires, suspensions and flexible bodies are built, a whole vehicle assembly model is assembled, loading of a vertical bending working condition, a horizontal bending working condition and a torsion working condition is carried out, loads of all nodes are submitted, calculated and extracted, the loads are reversely loaded to a complete finite element model, and a strength analysis result of the lower control arm is obtained through calculation. A simulation analysis result is closer to a real vehicle reliability test result.

A method for constructing a dynamic model of a coupled system of high-speed railway train-track-substructure includes: experimentally obtaining key technical parameters with nonlinear and frequency-varying characteristics in the high-speed railway infrastructure system; constructing a novel wheel-rail contact model suitable for higher speed levels and integrating it into the vehicle-track coupled dynamic model; constructing a train vehicle model and track structure model based on the principles of multi-rigid-body dynamics and the finite element method; and using a self-developed program to realize the dynamic modeling of the train-track system; taking the ballastless track structure, subgrade, bridge, and tunnel structures of high-speed railways as research objects, and applying a finite element simulation platform to realize the construction of a refined finite element model of the track-substructure structure; this invention achieves a breakthrough in the theoretical modeling of the vehicle-track-substructure system of higher speed railways, providing a research method and platform for deepening the understanding of the coupled dynamic mechanism of complex systems of high-speed railway infrastructure with speeds of 400 km / h and above.

The invention discloses a method for constructing a motion trail model of a large forging manipulator, and relates to the technical field of large forging equipment control. The method comprises the steps that a manipulator kinematics model is established based on an improved D-H parameter method, and model parameters are updated in real time through online calibration; constructing and analyzing a Jacobian matrix to identify and smoothly transit the singular configuration; performing attitude interpolation in the SE (3) space by adopting spherical linear interpolation or quaternion interpolation, and generating a smooth trajectory in combination with multi-objective optimization; a multi-source nonlinear constraint model covering machinery, driving, process and safety is established, and integrated decision making is carried out based on model predictive control; and simulating and predicting response by using finite elements and multi-body dynamics, and optimizing model parameters through Bayesian updating or a least square method based on actually measured data. According to the method, the tail end pose precision, the trajectory smoothness and the production efficiency are remarkably improved, and the problems of inaccurate modeling, sudden pose change, incomplete constraint consideration and lack of continuous optimization of a traditional method are solved.

The invention provides a double-drive synchronous control method and system for a gantry machine tool, and the method comprises the steps: S1, building a flexible multi-body dynamic model of the gantry machine tool through combining the part flexibility and connection flexibility of the gantry machine tool; s2, constructing a dual-drive electromechanical coupling model of the gantry machine tool by combining servo system characteristics of the gantry machine tool and traditional system dynamic characteristics on the basis of the flexible multi-body dynamic model; and S3, according to the double-drive electromechanical coupling model, a self-adaptive control algorithm combining cross coupling double-drive synchronous control and sliding mode control is adopted to complete synchronous control of a double-drive system. According to the gantry machine tool double-drive synchronous self-adaptive control algorithm based on cross coupling double-drive synchronous control and sliding mode control, a cross feedback item is introduced, so that information of two drivers is correlated, the problem of double-drive synchronous error accumulation faced by a traditional double-drive parallel control or master-slave control method of a gantry machine tool is solved, and the system reliability is improved. The synchronous control of the gantry machine tool servo double-drive system is realized.

The invention discloses a structural parameter optimization method of a Stewart platform, and belongs to the technical field of parallel robots. The method comprises the following steps: firstly, establishing a mathematical model of a Stewart platform, carrying out degree-of-freedom analysis on the platform, and establishing a kinetic equation based on a positive and inverse kinematics relationship and a Lagrange method; then determining an optimization target which covers a working space, rigidity, motion precision and stability; on this basis, a particle swarm optimization (PSO) algorithm is adopted to carry out global optimization on key parameters such as branch length, platform layout, driver position and the like, and a fitness function is utilized to comprehensively evaluate platform performance; and finally, inputting an optimization result into finite element analysis (FEA) and multi-body dynamics simulation (MBD) software for verification. Experimental results show that the working space of the Stewart platform can be remarkably expanded, the motion precision and rigidity of the Stewart platform are improved, stress distribution is improved, and the overall stability is enhanced. The method breaks through the limitation of traditional empirical design and single-target optimization, has the advantages of high optimization efficiency, high global search capability and high convergence speed, is suitable for scenes such as flight simulators, precision machining and spaceflight test platforms, and has wide engineering application value.

The invention discloses a posture control method and system of a discrete gravity center double-wheel-foot robot and a storage medium, and relates to the technical field of gravity center control. Discrete configuration and rapid switching of the gravity center position are achieved by actively adjusting hip joints and knee joints, and a robot model is established based on multi-rigid-body dynamics; simplifying the model into an inverted pendulum linear model family with parameters changing along with the gravity center in the front-back direction; a plurality of discrete gravity center working conditions are preset, each working condition corresponds to a specific joint target angle and model parameters, and the optimal working condition is selected for switching according to the real-time posture and the motion state; and designing a cooperative control law by adopting a linear quadratic regulator, and finally, realizing stable attitude control of the robot under complex terrains and disturbances through multi-joint cooperative execution. According to the method, the disturbance rejection capability and the attitude stability margin are remarkably improved through discrete gravity center configuration, meanwhile, the model complexity and the real-time calculation burden of continuous gravity center adjustment are avoided, and control performance and engineering realizability are achieved at the same time.

The application belongs to the technical field of aerospace, and relates to a distance-keeping game control framework and method for a maneuvering non-cooperative target. The framework comprises a rolling control window, an event perception window arranged in each rolling control window, and an event triggering mechanism arranged in each event perception window. The event perception window predicts an orbit state through a two-body dynamics model, the event triggering mechanism calculates a relative distance between an active satellite and a target satellite at each discrete point according to an orbit prediction result, and judges whether the relative distance constraint is met. If the relative distance constraint is met, an impulse maneuver strategy of the active satellite as a decision output is calculated through a game strategy optimization algorithm. Simulation results show that the application can realize long-time distance keeping, and the success rate reaches 98% in a 12-hour maintenance task, which is increased by 308.3% compared with a traditional algorithm.

The application discloses a flexible multi-body dynamics method verification experimental device, which is used in the field of flexible multi-body dynamics experiments. The system comprises a structure system, a driving system, a measuring system and a connecting system. The structure system comprises a flexible test piece, an auxiliary beam and a counterweight piece. The driving system comprises a servo motor and a feedback control component thereof. The measuring system comprises an accelerometer, an angular displacement sensor, an eddy current sensor and a high-speed camera. The connecting system comprises equivalent torsional spring pieces and design modules for fixing two flexible beam test pieces together, and the system fundamental frequency of the flexible beam is adjusted by changing the torsional spring stiffness. The application provides a device for multi-section flexible beam dynamics experiments, which can accurately measure the displacement response and acceleration response of the test piece, is consistent with the modeling analysis results, and provides an important tool for related research and development.

The invention provides a stabilizer bar modeling method, device and equipment and a storage medium, and relates to the technical field of vehicle chassis design and development. The method comprises the following steps: acquiring a digital-analog file of the stabilizer bar, and analyzing the digital-analog file to obtain geometric information of the stabilizer bar; performing curve fitting according to the geometric information to generate a parameterized curve representing the center line of the stabilizer bar; according to a preset number of hard points, carrying out equipartition sampling on a parameter domain of the parameterized curve to generate a hard point coordinate set; and based on the hard point coordinate set, constructing a multi-body dynamic model of the stabilizer bar in a simulation environment. According to the method, automatic and high-precision extraction of the hard point coordinates is realized, so that a traditional low-efficiency mode of manual identification and measurement depending on artificial experience is effectively improved; and the hard point coordinate set is generated according to the preset number of hard points, and the multi-body dynamic model of the stabilizer bar is automatically constructed in a simulation environment, so that the problems of low modeling efficiency, large error and complex flow of the stabilizer bar are effectively improved.

A first principle prototype integrated virtualization test verification method, steps are as follows: prototype is mapped to data space after virtualization process, and virtual prototype object in data space is formed;Virtual prototype object is subjected to multi-body dynamics evolution calculation, and the virtualization time evolution result of the system state parameter after prototype integration is obtained, and the consistency of the evolution result and the design expected state is compared, and the correctness of the running state after system integration is verified.The present application gives a universal mathematical and physical method paradigm, and the multi-body problem is decoupled into the superposition of a large number of two-body problems, and various heterogeneous models can be widely encapsulated.

The invention discloses a CFD-based wave glider multi-body dynamics simulation method and system, and the method comprises the steps: building an umbilical cable flexible dynamics equation through employing a concentrated mass method, and obtaining an umbilical cable flexible wave glider rigid-flexible coupling dynamics model through employing a floating body and submerged body dynamics equation as a boundary condition; the method comprises the following steps: constructing a geometric model of a floating body, a submerged body and a hydrofoil, creating a background fluid domain, carrying out regional division on the background fluid domain and the geometric model by utilizing Boolean operation, and constructing a hydrofoil-seawater bidirectional fluid-solid coupling CFD simulation model of the wave glider; building a co-simulation interface based on MATLAB-Fluent, executing time domain co-simulation and iterative updating based on the co-simulation interface, and obtaining power data in the operation process of the wave glider; according to the method, the flexible effect of the umbilical cable and the hydrofoil is introduced into the dynamic model of the wave glider, high-precision fluid-solid coupling of seawater and a structure is realized based on CFD, and the kinematics and dynamics behavior prediction precision in the operation process of the wave glider is improved.

The invention relates to the technical field of industrial robot load identification, in particular to a six-degree-of-freedom robot end load parameter identification method, which comprises the following steps: establishing a six-degree-of-freedom series robot dynamical model, reconstructing a load minimum parameter set, and determining that identification can be completed only by exciting a third joint, a fifth joint and a sixth joint. Designing four groups of symmetric excitation trajectories combined by Fourier series and quintic polynomials, and performing discrete sampling to generate an observation matrix; optimizing a load parameter set and a regression matrix, and reducing the condition number of an observation matrix; a load minimum parameter set is obtained through difference calculation of the no-load identification result and the on-load identification result; and based on the parameter set, solving the mass, the mass center coordinate, the inertia moment and the inertia product of the load. The method solves the ill-conditioned problem of a regression matrix by reconstructing the minimum parameter set, reduces the number of excitation joints, does not need to depend on a robot body kinetic model, and has the advantages of high identification precision, high stability, low experiment complexity and high efficiency.

The invention discloses a wind driven generator transmission chain key component life prediction method and device, equipment and a medium. The method comprises the following steps: determining a plurality of transmission associated components of a target wind driven generator; acquiring a simulated wind condition, and constructing a multi-body dynamics simulation model according to the equipment parameters of the target wind driven generator; a simulated wind condition is input into the multi-body dynamics simulation model, a simulated fatigue life group corresponding to each transmission associated component is obtained, and the simulated fatigue life group comprises a plurality of simulated fatigue lives; and constructing a transmission chain model, and determining the life probability distribution of the transmission chain model according to the simulated fatigue life groups corresponding to the plurality of transmission associated parts. The invention belongs to the field of wind driven generator transmission part life prediction. Accurate prediction of the service life of the transmission chain component can be realized.

The application provides a hydraulic system three-dimensional model simulation modeling method and device, and relates to the three-dimensional modeling field. The method comprises the following steps: constructing a three-dimensional geometric topology based on the spatial position relationship and connection relationship between each hydraulic component in the ship hydraulic system; constructing a multi-domain parameterized model based on the three-dimensional geometric topology of the physical attribute parameterization, and establishing a multi-physical field coupling equation group through the multi-domain parameterized model; solving the multi-physical field coupling equation group through a finite element solving framework and a multi-body dynamics joint solving framework to output the corresponding time sequence simulation result of the ship hydraulic system, and iteratively correcting the spatial position relationship and connection relationship in the three-dimensional geometric topology; and constructing the corresponding three-dimensional model simulation model of the ship hydraulic system through the corrected three-dimensional geometric topology. The application solves the problem that the simulation result of the traditional hydraulic system modeling method in the complex cabin section structure of the ship is greatly deviated from the actual running state.

This disclosure provides a method and system for intelligent adjustment of automotive bushing stiffness based on parametric modeling, relating to the field of automotive chassis performance development technology. The method includes: parametrically characterizing automotive bushings, establishing an ADAMS model, and integrating the parametric bushing model into a multi-body dynamics simulation model of the whole vehicle; defining a standardized simulation condition library for whole-vehicle handling and stability evaluation, automating the dynamics simulation model to execute the set simulation conditions, and extracting simulation result data; calculating predefined handling and stability evaluation indices based on the simulation result data; establishing a multi-objective optimization model for bushing parameters with the goal of improving the handling and stability evaluation indices while considering multiple performance constraints; solving the multi-objective optimization model using an optimization algorithm until the convergence condition is met, and outputting the optimal combination of bushing parameters. This disclosure automates and intelligentizes the bushing adjustment process, enabling efficient and high-precision acquisition of optimal adjustment results.

A method and a device for planning and controlling a leg robot, as well as a robot and a storage medium, wherein the method comprises: determining a foot-end reference state of each leg based on the motion state and swing parameter of the leg of a leg robot in the next instant; planning a collision-aware swing leg trajectory based on the foot-end dynamics model and the discrete collision model for the leg that will begin to swing in the next instant; performing whole-body control of the leg robot based on the motion state, the reference state sequence, and the foot-end reference state, wherein for the leg that was intended to be a support leg during planning and that did not touch the ground, collision-aware whole-body control is performed based on a whole-body dynamics model and a discrete collision model.This solves the problems of limited passive flexible buffering of collisions in leg robots in related technology, the large computational volume of the control algorithm, the low control accuracy, the high wear of the robot hardware, the short lifespan and the inability to meet the needs of practical applications.

The invention provides a hydraulic muscle length observation method and device of a robot, the robot and a simulation system of the robot, and the method comprises the steps: inputting simulation parameters of the robot into a physical engine based on multi-body dynamics, and obtaining a hydraulic muscle simulation model of the robot; acquiring initial identification information of the muscle driver; storing the initial identification information in a static memory space preset by a physical engine; determining a currently running target muscle driver in the muscle drivers, and calculating the muscle length of a target simulated tendon corresponding to the target muscle driver by the physical engine; storing the muscle length in a static memory space, and generating target identification information of the target muscle driver in the static memory space according to the muscle length and the initial identification information; and exporting the target identification information from the static memory space, and generating a muscle length report of the target simulated tendon. According to the invention, the operation efficiency of the physical engine can be improved while the length observation of the hydraulic muscle is realized.

The embodiment of the invention provides a display method and device of a multi-body dynamic model and electronic equipment. The method comprises the steps that a native rendering module displays a first interface of a multi-body dynamics application; in response to a loading operation acting on the first interface and aiming at the target dynamic model, the loading module obtains original model data of the target dynamic model; the construction module constructs standardized topological data based on the original model data, and the standardized topological data comprises first topological data and second topological data; the web front-end interface obtains standardized topological data through a web channel communication interface; and the web front-end interface renders and displays the second interface, and in the second interface, renders and displays the model tree based on the first topological data and renders and displays the force-oriented graph based on the second topological data. The computing power can be ensured, and the development efficiency is improved.

The invention discloses a titanium-based composite undercarriage drop simulation analysis method, and relates to the technical field of aviation, and the method comprises the steps: building a buffer mechanical model of a titanium-based composite undercarriage, the buffer mechanical model covering an air spring force, an oil damping force and a structure limiting force; establishing a rigid-flexible hybrid virtual prototype model based on a multi-body dynamics method, wherein the rigid-flexible hybrid virtual prototype model realizes component integration through geometric modeling, flexible body creation and rigid-flexible coupling processing; carrying out drop test simulation, and obtaining a dynamic response curve of the undercarriage under the impact load through parameter setting and dynamics calculation; through combination of rigid-flexible coupling modeling and drop test simulation, simulation of the drop behavior of the titanium-based composite undercarriage is realized. According to the method, the test cost can be reduced, the research efficiency is improved, and the method has important engineering significance for lightweight and high-performance design of the undercarriage.

The present application belongs to the technical field of digital twinning, and particularly relates to a digital twinning modeling and fault prediction method for a large hydraulic cylinder. The method comprises the following steps: S1: a parameterized geometric model of a hydraulic cylinder assembly is established by using a three-dimensional modeling software. S2: a conversion plug-in is used to import the hydraulic cylinder mechanical system into Simulink, and an equivalent multi-body dynamics model of the hydraulic cylinder is established. S3: a hydraulic subsystem is created in Simulink; the equivalent multi-body dynamics model of the hydraulic cylinder and the hydraulic subsystem are fused to obtain a digital twinning model of the hydraulic cylinder. S4: a digital twinning virtual-real interaction system including the digital twinning model of the hydraulic cylinder is constructed. S5: the digital twinning model of the hydraulic cylinder is tested for accuracy and optimized in the digital twinning virtual-real interaction system. S6: state monitoring is performed by using the digital twinning virtual-real interaction system, and a fault prediction model is trained by taking the monitoring data as samples. The present application solves the problem that the operating state and component wear of the hydraulic cylinder are difficult to detect directly.

The invention discloses a wind turbine generator gearbox state monitoring and fault early warning method and system. The method comprises the following steps: defining a key part of a gearbox of a wind turbine generator as a flexible body, and constructing a multi-body dynamic model based on the flexible body; the multi-body dynamics model receives input multi-source time sequence data, then performs feature extraction and multi-index fault early warning algorithm processing, and outputs signal abnormal information for the current multi-source time sequence data; the signal abnormal information is gearbox fault data; constructing a mixed data set guided by a physical mechanism and performing data enhancement; and inputting a spatial-temporal feature coding fault diagnosis model based on the enhanced mixed data set, and then outputting a health index. According to the intelligent early warning system for the wind turbine generator gearbox, through the technical innovation of making up for data missing through modeling simulation, improving diagnosis precision through an intelligent algorithm and guaranteeing real-time early warning through edge calculation, a set of intelligent early warning system for the wind turbine generator gearbox which is high in precision, low in time delay and strong in generalization is successfully constructed.