195 results about "Joint simulation" patented technology

The invention relates to the technical field of automobile chassis simulation, and discloses an automobile chassis mechanism simulation optimization method based on digital twinning. The method comprises the following steps: firstly, acquiring a real-time operation data set of an automobile chassis mechanism, including multi-axis acceleration time sequence information, a suspension displacement monitoring sequence and the like, and synchronously transmitting the real-time operation data set to a cloud digital twin platform; constructing a hierarchical digital twin model comprising a suspension subsystem node, a steering mechanism node and a connecting component spatial constraint relation in the platform according to a chassis topological structure; performing multi-physics field feature extraction on the real-time operation data set to generate a chassis multi-physics field data set; executing multi-scale joint simulation calculation based on the model and the data set, and outputting a chassis dynamic response prediction result including fatigue damage distribution of the key connecting piece and the like; and finally, generating an optimization parameter adjustment instruction set according to the result, combining and feeding back to a physical chassis execution mechanism. According to the method, the real-time performance and precision of chassis simulation optimization are realized, and the chassis performance is improved.

The application discloses a high-pressure diaphragm pump one-way valve structure multi-objective optimization method based on digital twinning, and belongs to the technical field of pump valve optimization design; the application collects geometric size parameters and material properties of a high-pressure diaphragm pump one-way valve, and establishes a simulation model; an Isight and ANSYS joint simulation method is used to generate sample points and calculate response values; an agent model is constructed according to response values of each group of sample points, calculation efficiency is improved, and a digital twinning model is constructed; a one-way valve structure multi-objective optimization model is established by taking the maximum equivalent stress of a valve core and the minimum maximum flow velocity of a valve gap flow field as objective functions, a genetic algorithm is used for solving, the best structure parameter combination of the one-way valve impact resistance performance is obtained, and finally, result verification is carried out; the application can realize high-precision simulation of a one-way valve operating state and solving of optimal structure parameters of impact resistance performance, thereby guiding one-way valve structure design, reducing product research and development time cost, and improving service life.

The invention discloses a heat pump drying experiment method based on 1D-3D joint simulation, particularly relates to the crossing field of heat energy engineering and simulation modeling, and aims to solve the problem of insufficient precision caused by disconnection of a heat pump system and cavity flow field simulation in a heat pump drying process in washing equipment such as a dish-washing machine. The method comprises the following steps: establishing a heat pump system one-dimensional dynamic model and a cavity three-dimensional flow field model, dynamically setting one-dimensionally output air supply temperature and humidity parameters as a three-dimensional inlet boundary, and meanwhile, feeding back three-dimensional air return parameters to a one-dimensional evaporator adjusting boundary to form closed-loop coupling iteration, so as to obtain a three-dimensional flow field model; dynamic high-precision simulation of the whole drying process is achieved, the structure optimization efficiency and the energy consumption evaluation reliability are effectively improved, part of physical tests are replaced, and the development cost is reduced.

The invention provides a model-based reusable vehicle fault joint simulation method, which comprises the following steps of: (1) creating fault mode information according to the composition and connection relationship of a system simulation model, and summarizing to form a fault mode information set associated with the model; (2) analyzing a logic causal relationship between fault events, and establishing a system-level fault mode library based on fault mode information; (3) aiming at a joint simulation requirement, screening out a fault mode needing to be injected from the fault mode library, establishing a relationship between fault mode information and a simulation model through a model grammar rule, and generating a fault model; and (4) according to the requirements of fault combination, fault time and fault injection probability in the simulation of the reusable vehicle, completing fault simulation setting, and carrying out fault joint analog simulation. According to the method, automatic mapping and injection of fault information based on the model are realized, and the analogue simulation requirements of the reusable vehicle under large-scale, cross-system and cross-linking coupling faults are met.

The invention belongs to the technical field of ocean information engineering, and discloses a joint simulation method for a structure collision effect in a floating installation process of an offshore converter station. The joint simulation method comprises the following steps: S1, setting sea condition parameters of an operation sea area and geometric parameters and material parameters of a floating system; s2, initializing a hydrodynamic model and a multi-body model; s3, solving the barge motion equation under the current time step by using the hydrodynamic model to obtain barge motion data; s4, calculating an LMU contact force and a DSU contact force under the current time step according to the barge motion data in the step S3, feeding back the LMU contact force and the DSU contact force to the hydrodynamic model, and updating the external load of the barge; and S5, repeating the steps S3-S4 until simulation in the set time step is completed, and then outputting a simulation result. According to the method, precise calculation of dynamic movement of the floating body and precise simulation of complex contact-nonlinear restoring force of the LMU can be considered, and high-precision simulation analysis of the whole floating installation process of the offshore converter station is achieved.

The invention discloses an autonomous underwater vehicle hydrodynamic coefficient solving method based on multi-degree-of-freedom coupling driving, and provides a multi-degree-of-freedom dynamic coupling driving joint simulation strategy aiming at the limitations of low efficiency, step-by-step calculation error accumulation and the like of a traditional hydrodynamic coefficient calculation method. Through deep fusion of a system identification theory and a six-degree-of-freedom rigid body motion equation, a full-degree-of-freedom coupling simulation platform based on dynamic grid self-adaption is developed, transverse fluid power interference under plane constraint motion is decoupled, and synchronous iterative solution of six-degree-of-freedom hydrodynamic parameters of surging, swaying, heaving, pitching, rolling and yawing is achieved. According to the method, six-degree-of-freedom coupling motion numerical simulation is carried out by taking an independently researched and developed cheongfish series AUV (Autonomous Underwater Vehicle) as an example, and all hydrodynamic coefficients can be solved only through one-time example calculation. According to the method, the hydrodynamic coefficient of the autonomous underwater vehicle can be rapidly obtained, and the purpose of accurately controlling the autonomous underwater vehicle is achieved.

The invention relates to the technical field of civil engineering material detection, and particularly discloses a performance detection method of self-repairing concrete for civil engineering, which comprises the following steps: acquiring micro-deformation field data of a crack area in real time in a crack induction process, and constructing a joint simulation model; predicting an initial contact state between a crack and a repair material based on the model, extracting interface pressure distribution and effective bonding area change information, and calculating an interface bonding failure risk characteristic value through an improved fuzzy C-means clustering algorithm; a periodic load is applied to a preset crack area, a closed response signal is collected, and a multi-scale crack expansion coupling degree characteristic value is constructed to quantify coordination between microscopic filling and macroscopic recovery; fusing the two feature values into a composite repair quality feature vector, inputting the composite repair quality feature vector into a recognition model based on an improved deep residual network, recognizing and repairing a blind area, and generating a spatial positioning tag map; and finally, dynamically adjusting the monitoring path and the loading frequency according to an identification result.

The invention discloses a system-level coupling modeling method, system, equipment and medium for a multi-wind-wheel multi-tower-drum floating type wind turbine generator set, and relates to the field of simulation modeling, and the method comprises the steps that parameter information of the multi-wind-wheel multi-tower-drum floating type wind turbine generator set is obtained, and a multi-system structural dynamics model is obtained based on the parameter information of the multi-wind-wheel multi-tower-drum floating type wind turbine generator set; the unsteady aerodynamic model, the hydrodynamic model and the mooring structure dynamic model are used for outputting aerodynamic loads, hydrodynamic loads and mooring cable tension, the aerodynamic loads, the hydrodynamic loads and the mooring cable tension are fed back to the multi-system structure dynamic model, and based on a Lagrange framework, the models are subjected to joint simulation operation through a joint simulation interface, so that the mooring cable tension is obtained. And the multi-wind-wheel and multi-tower-drum floating type wind turbine generator is designed. According to the method, a complete system dynamics model can be established, and complete machine level rapid evaluation and engineering iteration under multiple working conditions can be supported.

The invention discloses a heat exchanger performance simulation research method which comprises the following steps: S1, an early-stage preparation stage: acquiring reference performance data and structural data of a primary heat exchanger; s2, a joint simulation model building stage: building a one-dimensional system-level model and a three-dimensional refined model; s3, in a joint simulation operation and iteration stage, single-scheme loop iteration is completed according to one-dimensional output, three-dimensional calculation, three-dimensional feedback and one-dimensional adjustment logic, meanwhile, multi-working-condition batch simulation is executed, and performance data is classified and archived; s4, in a result verification and scheme evaluation stage, simulation data are actually measured and compared through a non-reference working condition, a quantitative evaluation report is generated by taking a core performance index as a core, and model parameters are backtracked and calibrated when errors exceed the standard; and S5, a result archiving and reusing stage: systematically archiving simulation related results, packaging a general simulation model template, reserving a structural parameter modification interface, and constructing an associated database to support result retrieval and reusing.

Disclosed is a joint modeling and simulation method and system for ocean engineering installation operation, belongs to the technical field of ship and ocean engineering, and particularly relates to joint modeling and simulation for ocean engineering installation operation. The problems of low simulation efficiency, incapability of satisfying real-time requirements of engineering drills, and high time cost caused by repeated development due to difficulty in reuse of a simulation model in the ocean engineering equipment installation operation at present are solved. The method includes the following steps: step S1: acquiring an equipment independent motion simulation model; and step S2: acquiring joint simulation real-time data through motion transmission simulation and load transmission simulation. The joint modeling and simulation method and system for ocean engineering installation operation are applicable to the joint modeling and simulation for ocean engineering installation operation.

The invention discloses a manned space mission scene design and orbit analysis interaction method, which comprises the steps of S1, defining a space mission scene, and defining a mission target, a mission range and a mission constraint; s2, an MBSE model is constructed according to the scene, and modeling of a system architecture, function requirements and performance indexes is achieved; s3, generating an activity graph and an executable script based on the MBSE model, and establishing script execution logic; s4, starting simulation according to the activity graph and the script; s5, realizing linkage of MBSE simulation and track analysis software, and constructing a joint simulation environment; and S6, generating an orbit analysis scene in joint simulation, simulating a spacecraft trajectory, and generating a visual result and a parameter report. According to the method, a data link between the MBSE model and an orbit analysis tool is broken through, the problems of low manual construction efficiency, asynchronous parameters and insufficient verification are solved, the space mission scene design efficiency, model consistency and simulation reliability are remarkably improved, and effective support is provided for rapid design and optimization of complex manned space missions.

An active attitude multi-dimensional dynamics cooperative control method based on a zero moment point comprises the steps that S1, an all-terrain carrying platform whole vehicle system modeling is carried out, and a whole vehicle digital physical model and a whole vehicle mathematical model are built according to a wheel-leg hybrid all-terrain carrying platform, whole vehicle dynamics joint simulation based on a real wheel-leg hybrid suspension structure is carried out, and simulation results are compared; s2, based on the ideal vehicle body attitude strategy of the zero moment point, an attitude evaluation index is deduced by combining the change range of the zero moment point in the support polygon during high-maneuverability cross-country driving of the vehicle, and the ideal attitude required by the vehicle at the next moment is established by taking the zero moment point and the attitude quantity change rate as base points; meanwhile, decoupling control based on optimal distribution of tire force is designed, and upper-layer expected three-way force and three-way torque are calculated; a three-dimensional stability domain is established, optimal decomposition is carried out on tire force through a self-adaptive weighted cost function of a tire utilization rate and a target tracking error, and the driving stability and the control sensitivity of the vehicle are improved.

The invention discloses a human-exoskeleton interactive virtual simulation platform, which adopts a layered architecture design and comprises a user interface layer, a simulation engine layer and a data storage layer. According to the platform, an interactive interface is constructed through App Designer, the platform is realized based on a Matlab-OpenSim joint simulation function, and the functions of model import, control algorithm configuration, real-time visualization and data export are supported. Modularized design is achieved through an incremental development mode, PID, fuzzy PID and a sliding mode control algorithm are combined so that a user can optimize an exoskeleton control strategy by himself / herself, and the balance state of the human body is dynamically analyzed through a mass center calculation and unbalance evaluation module. The platform provides a human motion simulation view and a foot supporting surface change diagram, and man-machine interaction force, muscle force and joint track data can be obtained after simulation. The platform solves the problem that an exoskeleton man-machine interaction virtual simulation platform is lacked in the market, efficient tool support can be provided for exoskeleton structure design and control optimization, and the exoskeleton research and development efficiency is remarkably improved.

The invention discloses a design method of a high-resolution excitation-receiving eddy current sensor coil. According to the method, a coil parameter optimization method based on a finite element simulation platform and a genetic algorithm is designed for an excitation receiving eddy current sensor structure. The method comprises the following steps: firstly, analyzing a parameter coupling relationship of the excitation-receiving eddy current sensor, and establishing a parameterized finite element simulation model; and performing parameter modification, solving and data processing on the finite element model by utilizing a finite element simulation platform and a LiveLink interface joint simulation control genetic algorithm. The method can meet the design requirement of the high-resolution eddy current probe, and the detection precision of the excitation-receiving eddy current sensor is improved.

The invention relates to a joint simulation method for ship navigation control strategy verification based on computational fluid mechanics. The joint simulation method comprises the following steps: step 1, establishing a ship model numerical simulation environment under STAR-CCM +; step 2, establishing a ship horizontal plane track course controller module based on SIMULINK; step 3, establishing a ship horizontal plane track control model based on AMEsim; and step 4, completing an intelligent ship joint motion simulation test based on the STAR-CCM + lower ship model numerical simulation environment established in the step 1 and the AMEsim-based ship horizontal plane track control model established in the step 3. According to the invention, the problems of inaccurate controlled object model and single simulation verification means are effectively solved.

The invention discloses a traffic-electric power fusion network bearing capacity analysis method based on a double-layer model and multi-software joint simulation, and relates to the technical field of traffic engineering and electric power engineering crossing. According to the technical scheme, an upper-layer system optimization-lower-layer operation simulation double-layer model normal form is introduced, the upper layer aims at maximizing the total bearing capacity of the traffic-electric power fusion network, the lower layer constructs a real-time interaction channel through a TraCI interface of SUMO and a TCP / IP tool box of Matlab, and dynamic coupling simulation of the two networks is achieved; and solving the model by adopting a Bayesian optimization algorithm, and verifying the precision of the model through actual scene data in combination with a three-level evaluation index system covering traffic, electric power and fusion collaborative dimensions. The problems that a traditional method is insufficient in evaluation precision and poor in collaboration are solved, precise evaluation of the bearing capacity of the fusion network is achieved, technical support can be directly provided for charging facility layout and two-network collaborative scheduling in highways and other scenes, and the engineering application value is remarkable.

The application belongs to the technical field of hydraulic systems, and discloses a helicopter hydraulic system joint simulation method based on multi-discipline, wherein step one is to acquire hydraulic system demand; step two is to analyze the hydraulic system demand to obtain a hydraulic system use case diagram; step three is to perform function analysis to obtain an activity diagram, a sequence diagram and a black box state diagram; step four is to perform system design synthesis based on the function analysis to obtain a white box state diagram and build a hydraulic system function logic model based on Rhapsody; step five is to build a hydraulic system physical performance model based on AMESim based on the hydraulic system physical function model based on Rhapsody; the cabin display panel of the hydraulic system is simulated in AMESim based on the sequence diagram; step six is to build a main tail rotor dynamics three-dimensional visual model based on CAT IA; step seven is to combine the hydraulic system function logic model, the complete hydraulic system physical prototype model and the main tail rotor dynamics three-dimensional visual model; and step eight is to set simulation conditions and perform joint simulation.

The application provides a one-dimensional water delivery system and three-dimensional reservoir water force transient joint simulation calculation method, including the following steps: step one, determining the coupling interface position; step two, establishing a one-dimensional water delivery system model and a three-dimensional reservoir model; step three, determining the transient process calculation time step; step four, calculating the initial time of T=0, the initial value of the interface flow and pressure; step five, transient process calculation, completing the current time calculation; step six, when T>T t , the calculation is considered to be completed. Compared with the prior art, the application has the following advantages: the three-dimensional CFD method is used to calculate the dynamic change of the reservoir in the transient process, the change of the reservoir impedance characteristics with the water level and the flow state is considered, more accurate reservoir characteristics can be obtained, and the transition process calculation precision is improved; in the past, only the steady flow characteristics of the reservoir inlet / outlet can be calculated, the flow characteristics of the reservoir inlet / outlet in the transition process can be obtained by using the application, and the inlet / outlet structure design is more targeted; in the transition process calculation process, the data exchange between the one-dimensional program and the three-dimensional program adopts an iterative mode to ensure convergence, and the joint simulation calculation precision is greatly improved.

The invention provides a fire fighting truck boom design method and device, electronic equipment and a storage medium. The method comprises the following steps: establishing a multidisciplinary joint simulation model; setting an initial design variable set; generating multiple groups of first design variable combinations based on a preset test design method; comparing each group of first design variable combinations with an allowable error range of a corresponding to-be-selected parameter in a to-be-selected parameter library, and screening out multiple groups of second design variable combinations; inputting each group of second design variable combinations into a simulation model, simulating hydraulic parameter change through a hydraulic system simulation module, calculating boom dynamic response through a mechanical dynamics simulation module, and obtaining boom linear velocity fluctuation amplitude of each group of second design variable combinations; according to the method, the shaking conditions of the boom under different working conditions and different design variables can be obtained without actual tests, the optimal parameters are determined, a theoretical basis is provided for model selection and design of the boom of the fire fighting truck, the development cost of the fire fighting truck is saved, and the development period is shortened.

The application provides a large-scale light-weight high-strength high-rigidity vibration test tool optimization design method, which comprises the following steps: completing initial sample design of the vibration test tool; adopting finite element simulation calculation to optimize size parameters of the vibration test tool; completing joint simulation of the vibration test tool and a connected product to complete structure and size checking of the vibration test tool.

A centerless adaptive distributed joint simulation scheduling system comprises a plurality of local scheduling domains, data communication among the local scheduling domains is realized through'inter-domain interaction interfaces', each local scheduling domain comprises a local master node and a plurality of local slave nodes forming a subsystem, the local master node communicates with the local slave nodes, and the local slave nodes communicate with the local master node. The method is used for automatically carrying out local master and slave node dynamic division, intelligent model distribution based on calculation complexity, time sequence scheduling of self-adaptive propulsion step length, step length optimization and data interaction based on the least common multiple, and subsequent simulation data prediction based on a fault breakpoint.

The invention provides a forming process method of an aircraft panel, which comprises the following steps of: firstly, carrying out finite element joint analogue simulation on stretch forming and shot peening strengthening processes before actual operation is started, and determining optimal stretch and low-energy shot peening parameters; after manufacturing is started, a single profile blank is prepared through an integrated extrusion and quenching combined technology, and the defects that in a traditional technology, the rigidity of a multi-component riveting plate is low, and the material utilization rate is low are overcome; in the stretching process, residual tensile stress is introduced into the core part of the wallboard through pre-stretching, and the residual tensile stress and surface residual compressive stress generated by subsequent shot blasting can form a synergistic strengthening effect, so that the fatigue life is prolonged; and shot blasting adopts a low-energy mode, so that various defects caused by traditional high-energy spraying can be effectively avoided while the surface appearance and the pressure stress precision are ensured. The invention also provides targeted process optimization for ribbed and unribbed wallboards, so that not only is the dependence on complex clamping equipment eliminated, but also the deformation risk caused by clamping stress can be effectively avoided.

The application relates to a large-scale joint simulation interest management method and system based on a von neumann diagram. The method comprises the following steps: setting a first accessed matching node as a network management node, controlling new node access by the network management node, generating a von neumann diagram based on existing node distribution, dividing simulation data management areas of all nodes, and being responsible for corresponding area data transmission. A client sends an interested area data subscription request to any matching node, and after receiving the request, the node sets nodes with overlapping management areas and interested areas as main matching nodes. The client publishes simulation data to the main matching node, the main matching node notifies relevant main matching nodes according to the subscription record, and then sends the simulation data to the subscription client. The method can reduce redundant simulation data in network transmission, optimize transmission interaction relationship, improve communication efficiency of large-scale distributed simulation, and guarantee smooth operation.

The invention relates to an event-power grid-lifeline-user-oriented disaster influence full-chain joint simulation method, and aims to solve the problems that composite extreme events cannot be covered, coupling modeling is inaccurate and a unified full-chain simulation framework is lacked in the prior art. According to the method, extreme event scenes such as natural disasters and network attacks are generated, a multi-granularity lifeline model is constructed, joint simulation is carried out in two stages (two-way coupling system iteration simulation and one-way influence system section simulation), and eight types of important users are synchronously modeled by combining time-event dual-drive interaction. The full-chain failure process can be accurately simulated, power grid fault evolution, lifeline function loss and user service availability are output, and support is provided for urban lifeline toughness evaluation and emergency decision making.

The application discloses a kind of based on joint simulation underwater acoustic channel modeling and signal evaluation method, it is related to channel modeling technical field, including: in the first physical state generation first working condition received energy, and in the second physical state generation second working condition received energy;According to first working condition received energy and second working condition received energy determine heuristic information parameter;Determine the starting node and the terminal node of the graph structure data in submarine pipeline, in each iteration of the plurality of ants from the starting node to the terminal node in graph structure data, according to heuristic information parameter updates the travel path of each ant, to obtain the breathing dominant transmission path set;The application is favorable to provide more reliable technical basis for the design and operation of underwater acoustic communication in submarine pipeline corridor.

The invention discloses a cascading fault defense and self-healing optimization method for an air-space-ground integrated network. According to the method, aiming at the problem that cascading faults are easily caused by node heterogeneous coupling and topology dynamic change of the space-air-ground integrated network, a multi-factor coupled cascading fault propagation dynamic model is firstly established, and the synergistic effect of node heterogeneity, link dynamics and load redistribution is quantified; then, a closed-loop cooperative defense system integrating early warning, isolation and self-healing is designed, intelligent decision making is conducted through machine learning, reinforcement learning and the game theory, and the real-time performance and the energy efficiency performance on resource-limited edge nodes are ensured through a lightweight algorithm; and finally, an NS-3 and MATLAB joint simulation platform is constructed, and the model and the strategy are verified in various application scenes of the Internet of Things. Experimental results show that the prediction error of the propagation model provided by the invention is controlled within 10%, the failure recovery rate is improved to 85-90% through a defense strategy, the communication interruption duration is reduced by more than 60%, the resource overhead is reduced by 20-25%, and theoretical support and technical guarantee are provided for stable operation of the space-air-ground integrated network in a safe and tough key environment.

The application relates to the field of robots and discloses a skill simulation method, device and equipment of a robot and a storage medium. The method comprises the following steps: acquiring the gripper state when the robot completes an operation task and inputting the gripper state into a gripper simulation environment to obtain a first joint action position through simulation simulation; inputting the first joint action position into a joint simulation environment to obtain a second joint action position and a visual image through simulation simulation, taking the second joint action position and the visual image as input data, training and optimizing a preset initial prediction formula through a preset loss function, obtaining a prediction formula, inputting the initial joint action position and the initial visual image of the robot in the joint simulation environment into the prediction formula, obtaining a target joint action sequence, and driving the robot to perform corresponding actions. According to the scheme, the joint action information and the visual information are learned, the action sequence of the robot is predicted, the technical difficulty of the robot in operation behavior learning is reduced, and the intelligent degree and the generalization ability of skill simulation of the robot are improved.

The present application relates to a kind of event-oriented power grid-life line-user disaster influence whole chain joint simulation method, to solve the problem that existing technology cannot cover composite extreme event, coupling modeling is not accurate, lack of unified whole chain simulation framework.The method generates extreme event scene such as natural disaster, network attack, constructs multi-granularity life line model, carries out joint simulation in two stages (two-way coupling system iterative simulation, one-way influence system section simulation), to combine time-event double-driven interaction, synchronously model 8 kinds of important users.Can accurately simulate whole chain failure process, output power grid fault evolution, life line function loss and user service availability, provide support for city life line resilience assessment and emergency decision-making.

A joint simulation method, system and device for two types of heterogeneous systems, and a medium, relating to the technical field of system simulation. By constructing a joint platform, hardware and software interfaces of the two types of heterogeneous systems are integrated to acquire function control permissions and match communication protocols, so as to dynamically adapt to instruction data exchange. On the basis of current network and system load conditions, the most suitable communication protocol can be automatically selected by means of a load balancing mechanism, so as to ensure communication reliability and efficiency, adapt to different application scenarios and demands, and improve system operability and user experience. By means of a bidirectional parsing process, the platform can preprocess instruction data of the two types of heterogeneous systems, and perform bidirectional parsing and data format conversion. By predefining a mapping rule between the protocols, the platform implements automatic conversion and re-encapsulation of data formats, ensuring that data can be smoothly transmitted and parsed between different protocols. Thus, the problems of low operation efficiency, low communication accuracy and poor system stability in the prior art are solved.

The invention relates to the field of high-speed railway engineering, in particular to a high-speed railway line scheme dynamic performance evaluation method and system. The method comprises the following steps: calculating dynamic responses under different vehicle suspension parameters and establishing a vehicle dynamic agent model through a high-speed railway track joint simulation analysis model comprising a vehicle subsystem, a track subsystem and track flat and vertical section parameters, and setting linear simulation working conditions of multiple speed grades; linear simulation working conditions are calculated based on the dynamic agent model, dynamic indexes are output, and a multi-dimensional evaluation result database is constructed; and inputting a to-be-evaluated high-speed railway line flat and longitudinal section design scheme, obtaining dynamic performance prediction data through the evaluation result database, and evaluating and optimizing line flat and longitudinal section parameters. According to the method, the calculation efficiency of the dynamic performance of the high-speed railway line design scheme can be greatly improved, rapid and refined evaluation of a long line scheme is realized, and support is provided for iterative optimization of line design.