214 results about "Machine simulation" patented technology

The invention discloses a power grid transient process deduction method based on digital twinning, electronic equipment and a medium, and the method comprises the steps: building a digital twinning simulation model based on a new energy single-machine simulation model and a three-dimensional field station virtual model, and outputting a virtual value by the digital twinning simulation model; collecting core parameters in a monitoring period; calculating the deviation ratio of the physical value and the virtual value of the physical station based on the core parameter; and adjusting the transient process control strategy based on an adjustment object and the deviation rate, wherein the adjustment object comprises a virtual value, a core parameter, a scene parameter and a model control mode. The digital twinborn model can be calibrated in real time through deviation ratio closed-loop correction of a physical value and a virtual value, it can be ensured that simulation of the transient process of the power grid is highly consistent with the physical reality, and the precision and reliability guarantee of a deduction result is improved.

The invention discloses a simulation method for abrasive particle vibration machining based on reaction molecular dynamics, and relates to the technical field of reaction molecular dynamics, a vibration auxiliary model of a Si surface of 4H-SiC is established, the process of vibration auxiliary chemical mechanical polishing of diamond abrasive particles in the Z-axis direction is simulated, the Si surface model of the 4H-SiC is consistent with an actual machining surface of silicon carbide, and the abrasive particle vibration machining simulation method is suitable for the actual machining surface of silicon carbide. The vibration direction of the vibration auxiliary simulation is consistent with the motion direction of the abrasive particles in the actual chemical mechanical polishing process, so that the acting force and motion trail simulation of the diamond abrasive particle model in the polishing process are more real, and the simulation process is closer to the actual machining process; the atom removal mechanism of the Si surface of 4H-SiC under the conditions of different vibration amplitudes and frequencies and different scratching depths can be researched, so that a chemical mechanical polishing technology is conveniently optimized by ultrasonic vibration, and the polishing quality of silicon carbide is further improved; the technical problem that an existing vibration auxiliary model based on reaction molecular dynamics simulation cannot effectively optimize the chemical mechanical polishing process of silicon carbide is solved.

The invention provides an energy storage converter optimization control method based on a fusion genetic-particle swarm algorithm and a related device, and belongs to the technical field of oscillation suppression of energy storage converters. According to the method, a virtual synchronous machine simulation model is established, a second-order motion equation of the synchronous machine is analyzed to obtain a selection principle of rotational inertia and a damping coefficient, then a related control strategy function is constructed, and parameters of the control strategy function are optimized by using a fusion genetic-particle swarm optimization algorithm. Differential adjustment coefficient configuration can be implemented according to specific requirements of different power system scenes on overshoot and response time, the control strategy strain capacity is effectively improved, and the system instability risk is reduced; and meanwhile, the global search capability of the genetic algorithm and the rapid convergence characteristic of the particle swarm algorithm are fully exerted, the function parameters of the control strategy are accurately optimized, the stable regulation and control capability of the energy storage converter in the power system is enhanced, the low-frequency oscillation of the virtual synchronous machine is effectively suppressed, and the stability and dynamic regulation performance of the energy storage converter are improved.

The invention provides a five-axis numerical control machine tool processing simulation method and system, and the method comprises the steps: obtaining a three-dimensional model and key parameters inputted by a user, and building a structure tree model of a five-axis numerical control machine tool based on the three-dimensional model and the key parameters; a machining file of the five-axis numerical control machine tool is obtained and analyzed, and a machining path and technological parameters of the five-axis numerical control machine tool are obtained; based on the key parameters and the machining path, motion stroke detection of the five-axis numerical control machine tool is carried out; based on the three-dimensional model, the structure tree model, the processing path and the process parameters, collision detection of the five-axis numerical control machine tool is carried out; and displaying the three-dimensional model and the obtained motion stroke detection result and collision detection result. By means of the method, simulation of the machining process of the five-axis numerical control machine tool can be conveniently achieved, and therefore the universality, efficiency and accuracy of machining simulation of the five-axis numerical control machine tool are improved.

The invention relates to an implicit voxel Boolean subtraction optimization method in five-axis machining simulation. According to the method, an implicit tool geometric expression model based on a symbolic distance function is constructed, and a dynamic voxel modeling technology with a layered structure is combined, so that efficient interactive modeling of a material removal process between a tool and a workpiece is realized. The whole process of the method comprises four key stages of spatial positioning, vertex interference detection, projection correction and grid reconstruction, and can cope with geometric modeling challenges caused by continuous motion of a multi-degree-of-freedom and multi-attitude cutter. A dynamic block loading mechanism and a local state synchronization strategy are introduced, so that the real-time response capability of Boolean subtraction operation under complex working conditions is effectively improved, and meanwhile, the continuity and integrity of machining geometric boundaries are kept. The method has good expandability and robustness, obviously reduces space-time complexity of calculation on the basis of keeping geometric surface continuity and topological correctness, realizes millisecond-level response time in an experiment, and has a good application prospect. The method is widely applied to virtual machining simulation and intelligent process verification systems of complex free-form surface parts such as aero-engine blades and automobile structural parts.

The invention discloses a complete machine variable-dimension simulation method based on a circumferential average flow model, belongs to the technical field of aero-engine numerical simulation and multi-scale modeling, and solves the problem that complete machine simulation efficiency and local flow detail precision are difficult to consider at the same time in the prior art. And traditional full-three-dimensional computing is too high in resource consumption and cannot quickly evaluate the performance of the whole machine. According to the method, a zero-dimensional complete machine and component two-dimensional model of the aero-engine is firstly established, dimensionality reduction is carried out by using a circumferential average N-S equation, the two-dimensional model is embedded into the zero-dimensional model, an equivalent replacement variable reconstruction equation set is solved, synchronous convergence of the complete machine and component models is realized, and simulation precision and efficiency are improved. According to the method, a full coupling mode is adopted, two-dimensional dimension reduction modeling is combined, minute-level convergence is achieved, the simulation error is not larger than 5%, the simulation precision is improved, the calculation efficiency is improved, rich S2 flow field information can be provided, and the research and development cost and period are reduced.

The invention relates to the technical field of intelligent machining, in particular to a machining simulation verification method and device, computer equipment and a storage medium. The machining simulation verification method comprises the steps of generating an initial machining program code of a to-be-machined object based on machining equipment and a machining path; calling a second simulation program, determining a target machine tool model matched with the machining equipment in the second simulation program, and performing machining simulation on the to-be-machined object based on the initial machining program code and the target machine tool model to obtain a machining simulation result; adjusting the machining equipment and the machining path based on the machining simulation result; and performing machining simulation on the to-be-machined object based on the new machining program code and the target machine tool model until an obtained new machining simulation result meets a preset condition, and determining the current machining program code as a target machining program code of the to-be-machined object. A method for manufacturing industry machined product yield is provided.

The invention particularly relates to a discharge machining simulation control system for a nuclear power plant in a high-radiation boron-containing water environment, which belongs to the technical field of special maintenance in the high-radiation environment of the nuclear power plant and comprises a man-machine interaction system, a discharge machining control system and subsystems. Each subsystem comprises a pulse power supply system, a servo power system, a washing system, a purification system, a grounding system and a tool system; the man-machine interaction system is used for man-machine interaction and displaying the discharge machining implementation data fed back by the subsystems; the electric discharge machining control system is used for generating an electric discharge machining instruction according to the man-machine interaction information and controlling the subsystems to cooperate to perform electric discharge machining work; and each subsystem is used for implementing electric discharge machining work according to the electric discharge machining instruction and feeding back electric discharge machining implementation data. According to the invention, simulation control of discharge processing in the high-radiation boron-containing water environment of the nuclear power plant is realized.

The invention provides a novel blade tip loss correction calculation method based on a Shen blade tip loss model. The method comprises the steps that 1, parameters input by a user are read; 2, the Shen blade tip loss correction model is coupled to a wind turbine simulation tool OpenFAST; 3, calculating a general correction factor according to the parameters input by the user; 4, according to the blade tip loss correction requirement, one of the Shen blade tip loss correction model and the Prandtt model in the wind turbine simulation tool OpenFAST is selected, the stress and displacement of the blade tip position under the condition of the high blade tip speed ratio are corrected in combination with the universal correction factor, and blade tip loss correction calculation is completed. The Shen blade tip loss correction model is coupled to the OpenFAST, a new blade tip loss correction calculation method is provided, the stress and displacement of the blade tip position are calculated more accurately under the condition of the high blade tip speed ratio, and the blank of the OpenFAST in the field is filled.

The invention relates to the technical field of intelligent numerical control machining, in particular to a Tri-dexel model efficient cutting simulation method based on octree acceleration, and the method comprises the steps: firstly selecting a three-dimensional model needing Tri-dexel processing; performing grid division on the three-dimensional model to obtain a plurality of triangular grid units, and generating a Dexcel ray according to the three-dimensional model; triangular patches in the triangular mesh are stored in an octree form; grouping the Dexcel rays according to the depth of the octree, and searching patches possibly intersected with the Dexcel rays in the octree by using the Dexcel rays for intersection; performing de-duplication processing on the repeated intersection points; the intersection points of the same Dexel ray are connected in pairs, and finally a Tri-dexel model is generated; and then the Tri-dexel model of the workpiece cut by the tool can be obtained through the one-dimensional Boolean operation of the Dexcel line segment between the workpiece and the Tri-dexel model of the tool. Through verification, the Tri-dexel efficiency of the complex three-dimensional model in machining simulation is improved, and the calculation amount and the storage space of machining simulation can be effectively reduced when a complex three-dimensional scene in numerical control machining simulation is coped with.

The present invention generates a friction model of a machine tool in a simple way, without requiring a trial run of the machine tool and without requiring any specialist knowledge.A machining simulation device is provided, comprising a friction model generation unit that generates a friction model of a machine tool, and a simulation execution unit that uses the friction model to simulate and reproduce the behavior of the machine tool. The friction model generation unit comprises: a model determination unit that determines the type of friction model according to the number of data pieces relating to a torque and a velocity; and a coefficient calculation unit that calculates a coefficient in the friction model based on the determined type of friction model and the number of data pieces relating to the torque and the velocity. The friction model generation unit reflects the generated friction model back to the simulation execution unit.

The invention relates to the technical field of ancient building construction, in particular to an antique wood component processing system and method based on a BIM technology. In order to solve the problems of large error, high cost, long construction period and the like of manually processed wood components in the prior art, a building model establishment module is arranged for establishing a building information model required by a user, a wood component parameterization module is used for generating a wood component digital model, and a processing technology matching module is used for generating a processing technology scheme; the machining process simulation module is used for conducting machining simulation and optimization on wood components, the numerical control machining control module is used for conducting actual machining on the wood components according to virtual simulation results, and the virtual assembly module is used for conducting virtual assembly inspection on the wood components. And the processing optimization feedback module is used for judging an optimization target of the wood component and feeding back the optimization target to the processing technology simulation module. Through mutual cooperation of the modules, powerful technical support is provided for protection, repair and innovation of the pseudo-classic architecture.

The invention discloses a point switch simulation device and a test method of a turnout plate. The device comprises an upper computer, and an alternating current point switch module, a direct current point switch module, an interference injection module and an interface module which are respectively in information interaction with the upper computer, the upper computer is configured to control and adjust each module according to a user instruction and display operation information of the device and the turnout plate in real time; wherein the alternating current switch machine module and the direct current switch machine module are respectively configured to simulate the action process and the action scene of an alternating current switch machine and a direct current switch machine according to a received user instruction; the interference injection module is configured to output an interference signal according to a received user instruction and feed back an interference information parameter to the upper computer; the interface module is configured to execute switching of an AC switch machine interface and a DC switch machine interface and injection of interference signals. According to the invention, the turnout plate can be verified before leaving the factory, and the field operation safety and the train operation safety are improved.

The invention relates to the technical field of wind turbine generator simulation, and particularly provides a wind turbine generator complete machine simulation method and device, and the method comprises the steps: integrating a characteristic matrix of each unit in a finite element model of a wind turbine generator into a complete machine motion balance equation of the wind turbine generator based on the node number of each unit in the finite element model of the wind turbine generator; converting the complete machine motion balance equation of the wind turbine generator to obtain a complete machine motion balance equation without constraints; integral solving is conducted on the complete machine motion balance equation with the constraint eliminated, and a complete machine simulation result of the wind turbine generator is obtained; wherein the characteristic matrix comprises a mass matrix, a damping matrix and a stiffness matrix, and the simulation result comprises node velocity vectors of all units in a finite element model of the wind turbine generator. The technical scheme provided by the invention can be used for guiding the whole unit, simulation design and tool development, and has a wide application prospect.

The invention discloses an aero-engine double-rotor complete machine simulation tester considering foundation impact, and belongs to the technical field of aero-engines, the aero-engine double-rotor complete machine simulation tester comprises a drop table, a foundation platform is arranged on the drop table, the foundation platform comprises a first platform and a second platform, a supporting assembly is installed on the foundation platform, and a force bearing structure is installed on the supporting assembly. The force bearing structure comprises a rear force bearing case, one side of the rear force bearing case is connected with a turbine case, one side of the turbine case is connected with a combustion chamber case, one side of the combustion chamber case is connected with an intermediate case, and one side of the intermediate case is connected with an air inlet force bearing case. According to the aero-engine double-rotor complete machine simulation tester considering the foundation impact, segmented design is adopted, the aero-engine double-rotor complete machine simulation tester has the thin-wall characteristic, circumferential bolt connection is adopted, a connecting face structure serves as a reinforcing rib, vibration loads can be effectively transmitted, and research and analysis of a transmission path are facilitated; and a mouse cage elastic support is adopted to reduce the supporting rigidity at the mass concentration turntable so as to adjust the critical rotating speed to reach a safe range.

The invention relates to the field of gear machining simulation and numerical analysis, and discloses a tooth turning machining simulation method for a complex topology modification tooth surface, which comprises the following steps of: firstly, establishing a tooth turning cutter cutting edge reconstruction model; identifying the cutting edge of the tooth turning cutter for actually cutting the specific tooth surface; establishing a tooth turning machining motion reconstruction model to obtain a tooth surface simulation machining point cloud; extracting a tooth turning machining simulation tooth surface based on a two-dimensional convex hull method, and evaluating the tooth turning machining simulation tooth surface; a target tooth surface model actually needed by engineering is constructed, and a tooth surface obtained through simulation machining and the target tooth surface are compared and analyzed so as to evaluate the precision and effectiveness of gear turning machining simulation; the problem that in the prior art, the numerical value singularity problem caused by curvature abrupt change and cut-in / cut-out boundary discontinuity in simulation machining of the complex topology modification gear is difficult to process, and the meshing equation solving process is always unstable or failed is solved.

A cloud-based digital twin modeling and testing system is capable of hosting multiple applications that can be used to simulate and test versions of a control design prior to deployment, including but not limited to control programming applications, controller emulation applications, machine simulation applications, or other such platforms. The digital twin modeling environment renders an interface display that allows a user to easily build a testable digital model of a control system by connecting components of a proposed control project to these applications. The system also allows the user to define inputs and test scenarios to be executed as a simulation. Based on the connections, inputs, and test scenarios defined by the user, the modeling system leverages the hosted applications as needed to execute the defined test scenarios and generate predicted metrics for the proposed control system design.

The invention discloses a universal configurable airborne controller digital prototype model, which is characterized in that a virtual target machine simulation module realizes behavior-level simulation of an ARM architecture microcontroller through a Qemu technology, and constructs a virtual target machine for operating controller software; the control panel simulation module constructs a common resource library of a controller panel by using a QT tool, and selects a composition form of the control panel required by a project to form a simulation control panel; the bus data simulation module simulates external bus data excitation based on ICD; through co-simulation software, binding of the simulation control panel and the virtual target machine is realized, an external excitation signal is generated for the virtual target machine, and data transmission from simulation bus data to the virtual target machine and data transmission from target machine simulation to a control panel model are realized. According to the invention, building block type rapid construction of controller products in different projects in a digital prototype model is realized, and development, debugging and testing of software separated from a hardware environment are realized.

The invention discloses a metadata set driven robot fine control heterogeneous data real machine simulation evaluation method, a medium and equipment. Simulation data and real machine logs are uniformly converted into a directed acyclic task graph (DAG) with preconditions, effects and constraints through a stable action library, an attribute library and an object / robot adapter, a Meta-Dataset is constructed, and a comprehensive scoring model combining a process score (PS) and an area under a success rate-difficulty curve (AUC) is defined on the Meta-Dataset. The method comprises the following steps: introducing an anti-cheating client integrating a policy fingerprint attestation (PFA), an action Merkel log (AML) and a verifiable execution experiment (VEE) at a real machine side, extracting an environmental parameter vector theta by utilizing a theta encoder, performing conditional playback according to the theta in a simulation environment, obtaining a success rate and a confidence interval by adopting a posterior predictive inference (PPI), and combining with a real machine result to form a calibration score; and cross-dataset and cross-platform robot fine control unified evaluation with anti-cheating capability is realized.

The invention relates to the technical field of computer aided design and numerical control machining simulation, in particular to a five-axis linkage numerical control machine tool machining simulation modeling method and system. Comprising the following steps: acquiring a workpiece space three-dimensional model, tool geometric model data and a six-dimensional pose data sequence; a dynamic virtual view cone is constructed, and the workpiece space three-dimensional model is divided into different areas; calculating spatial distances corresponding to different areas and mapping the spatial distances into different grid resolutions; performing spatial discretization and integration on the corresponding areas according to different grid resolutions to obtain a multi-resolution dynamic workpiece model, and performing Boolean material removal simulation to obtain a machining state model; and carrying out time sequence fusion on the machining state models at all moments to obtain a workpiece machining time sequence simulation model. According to the method, the processing process is sensed through the dynamic virtual view cone, adaptive distribution of modeling resources is realized, the problem of resource waste caused by uniform partitioning is solved, and the simulation efficiency is remarkably improved while the precision of a key region is ensured.

The invention belongs to the technical field of slurry shield slurry film forming, and particularly relates to a dynamic earth pressure balance shield slurry film forming test device and a maintenance observation method.The dynamic earth pressure balance shield slurry film forming test device comprises a base assembly, a stratum box assembly, a shield tunneling machine simulation assembly and a driving assembly, and the stratum box assembly, the shield tunneling machine simulation assembly and the driving assembly are all installed on the base assembly; the shield tunneling machine simulation assembly is in butt joint fit with the stratum box assembly, and the driving assembly is connected with the shield tunneling machine simulation assembly and used for driving the shield tunneling machine simulation assembly to excavate and convey slurry. According to the invention, the limitation that only static simulation can be realized in the existing test can be solved, the actual construction working condition is fit, different water pressure stratum environments can be simulated, constant temperature, humidity and pressure of a mud film working environment can be maintained, the reference value of a test result is improved, and full-flow data from film forming to pressure maintaining and visual support are realized, and the performance of the mud film is accurately captured.

The invention discloses a three-phase five-wire system electric switch machine simulation box, which belongs to the technical field of rail transit signal equipment, and adopts a high-power aluminum shell resistor to simulate a switch machine motor coil; three LED power indicator lamps are adopted to check the phase loss condition under the condition of three-phase current fault; a polarity holding relay is adopted to simulate the positioning and anti-position states of the switch machine; the time relay adopting power-on time delay is used for setting the action time of the simulation switch machine; a diode resistor circuit is adopted to simulate a rectifying circuit in an outdoor box of the switch machine; the AC-DC power supply module is used for supplying power to the time relay and the polarity holding relay. According to the invention, the control operation process of the switch machine, phase sequence inspection and definite and reverse position representation can be simulated, manual intervention is not needed, the efficiency of indoor turnout combination circuit wiring inspection is improved, the cost is reduced, and the operation is simple.

A heterogeneous multi-unmanned system mixed scene simulation system, which belongs to the field of robot simulation and semi-physical simulation. The present invention solves the problem that the existing simulation technology cannot simultaneously have the ability to model and simulate multiple types of unmanned platforms, run on multiple computers, and combine virtual and real. The digital simulation module of the present invention can include digital simulation models such as quad-rotor drones, fixed-wing drones, unmanned vehicles, bipedal robots, and quadrupedal robots to achieve simulation of different digital simulation models, thereby improving the scalability and versatility of the system. Moreover, the system of the present invention can perform multi-machine simulation on multiple computers, and therefore, is suitable for use in large-scale scenes. At the same time, the simulation technology of combining virtual and real in the present invention can well guarantee the effect of digital simulation. The method of the present invention can be applied to the field of heterogeneous multi-unmanned system mixed scene simulation.

The invention relates to the field of aero-engine complete machine full-three-dimensional numerical simulation, and discloses an aero-engine complete machine full-three-dimensional simulation initial field presetting method and system, and the method comprises the steps: obtaining initial flow field boundaries of different parts from the zero-dimensional level of a complete machine by solving inlet section parameters and outlet section parameters of each part; then obtaining an initial field of each blade row in a turbine part, which has the most critical influence on the convergence of an engine, through a quasi-three-dimensional layer S2, and realizing initial field decomposition from the part to the part; and finally, by adopting a radial basis function interpolation method, mapping the zero-dimensional data and the S2 quasi-three-dimensional parameters to each grid unit of the complete machine full-three-dimensional model of the aero-engine, and then smoothly splicing the initialized flow fields of all the components at the interface to form a continuous complete machine three-dimensional simulation initial field under the examination working condition. The convergence of a whole machine simulation example, the simulation convergence speed and the numerical stability are greatly improved, the simulation trial and error iteration is reduced, the pretreatment time consumption is reduced, and the simulation speed and efficiency are improved.

To provide a technology that enables machining simulation to be performed at higher speed than conventional techniques. [Solution] The information processing device includes a control unit. The control unit executes a process to acquire a voxel model used in a simulation. The voxel model is defined by a plurality of lattice points that constitute a collection of voxels. Each of the plurality of lattice points is associated with a label that indicates an attribute of the object at the position of the lattice point. The control unit executes a process to acquire processing information that defines the irradiation coordinates of a laser beam and the irradiation direction of the laser beam for each time step, and a process to sequentially update the labels associated with the lattice points within an area specified by the irradiation coordinates and irradiation direction to a state where additional processing has been performed, according to the time step.

The invention relates to the technical field of chip mounter electronics, and particularly discloses an automatic testing system and method based on a virtual chip mounter simulation system and a storage medium. And according to the test case script and the instruction execution condition corresponding to the execution result failure, positioning and analyzing the abnormal condition in the test, and feeding back the positioned and analyzed abnormal condition. According to the scheme, the batch processing script is executed to perform automatic testing on the chip mounter software, the testing effect of the chip mounter software on the entity chip mounter equipment can be obtained, positioning analysis is performed on the instruction with the script execution result of each test case being failed, and the testing efficiency is greatly improved.

A machining simulation apparatus includes a memory and a processor. The memory is configured to store a plurality of constituent models, a plurality of holding unit models, a workpiece model, and a machining program. The processor is configured to set a specific tool model, select a specific holding unit model among the plurality of holding unit models, calculate a recommendation value of a protrusion length of the specific tool model with respect to the specific holding unit model, create an assembly model in which the specific tool model and the specific holding unit model are combined such that the protrusion length is either the recommendation value or a corrected value that is calculated by correcting the recommendation value, and virtually execute the machining program in order to determine whether the assembly model abnormally interferes with the workpiece model or any of the plurality of constituent models.

The invention discloses a numerical control machining simulation system based on artificial intelligence, and relates to the field of numerical control machining control. Comprising a demand analysis module, a processing modeling module, a data perception module, a knowledge modeling module, a parameter recommendation module, a path generation module, an error prediction module, a digital simulation module, a dynamic correction module, a risk detection module and an auxiliary decision module. Structured integration and multiplexing of historical experience and multi-source data are achieved, efficient knowledge migration can be carried out among different machining tasks, the cold start capacity and parameter optimization efficiency under the new working condition are remarkably improved, the machining performance can be continuously improved according to real-time feedback, the manual trial and error cost is greatly reduced, and the machining efficiency is improved. High-precision modeling of error distribution is achieved, and the consistency and usability between simulation and actual machining are improved.

The invention relates to the technical field of machining simulation, in particular to a voxel-based five-axis real-time cutting simulation method, which comprises the following steps of: determining a voxel size according to the number of rendered voxels, and performing voxelization processing on workpiece modeling according to the voxel size to obtain a workpiece voxel grid model; carrying out blocking processing on the workpiece voxel grid model to obtain a plurality of voxel blocks; and updating and rendering the model voxel in the voxel block according to the pose information of the cutter. In order to solve the problem that in the prior art, when large-scale voxels are processed in the cutting simulation process, efficiency is low or precision is insufficient, the size of the rendered voxels is dynamically calculated through workpiece modeling, voxelization processing is carried out, the good rendering efficiency is achieved, block processing is carried out on a workpiece voxel grid model, and the processing efficiency is improved. When cutting is simulated, only the specific block making contact with the cutter is locally updated, the number of voxels needing to be simulated and rendered again is reduced, and the processing efficiency is improved.

A machining simulation device according to one aspect of the present disclosure simulates the operation of a machine tool including a tool and a workpiece, the machining simulation device comprising: a speed acquisition unit that acquires speed information indicating the rotation speed of the tool; a tool model acquisition unit that acquires a tool model which corresponds to the speed information acquired by the speed acquisition unit and which can change in shape in accordance with the rotation speed; a simulation execution unit that uses the tool model acquired by the tool model acquisition unit to execute a simulation of the workpiece machining operation by the tool in the machine tool; and an interference check unit that checks for interference of the tool with another object on the basis of the results of the simulation by the simulation execution unit.