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Using the hysteresis analysis function, we conducted magnetization analysis of magnets with high coercivity. A cylindrical magnet was magnetized using a coil. The current was increased from 0[A] to a maximum value and then returned to 0[A]. The magnetic field in the space at that time was analyzed. The hysteresis analysis function uses "hyperbolic function approximation" as a method to represent the hysteresis loop in this case. The hyperbolic function approximation takes coercivity, remanent magnetization, and saturation magnetization as input values, and these values along with the hyperbolic function determine the hysteresis loop. [Case Overview] ■ Software Used: PHOTO-MAG ■ Analysis Type: 3D Nonlinear Magnetic Field Analysis (1/4 model due to shape symmetry) *For more details, please refer to the related links or feel free to contact us.

• Magnetic field analysis/electromagnetic wave analysis
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The analysis of the actuator involves examining the forces that occur between the driver and the stator when the driver, composed of magnets and magnetic materials, is displaced by a differential z [mm] in the axial direction. For more details, please download the catalog.

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IPM motors have a structure in which magnets are embedded in the rotor, allowing for the utilization of both magnetic torque and reluctance torque, making them widely used as high-efficiency motors. In this analysis, we examined the induced voltage in an unloaded state and the torque waveform under load conditions. The magnets are input with a magnetization vector, and the coil current is input as current density. The current density is set with a time point sequence of a three-phase AC waveform. By setting the rotational speed at the nodes that make up the rotor, rotation is taken into account. [Case Overview] ■ Analysis Type: 2D Nonlinear Magnetic Field Analysis ■ Software Used: PHOTO-MAG *For more details, please refer to the related links or feel free to contact us.

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The "hysteresis model using free energy" developed by our company incorporates the free energy of magnetic materials obtained through thermodynamic considerations and the movement of magnetic walls as a friction model. This approach is based on physics rather than a mathematical model. Methods such as ICCG and Newton-Raphson can be directly utilized, allowing for improved representation of hysteresis curves, including minor loops, and enabling vectorization (magnetic anisotropy). In the calculation examples using this method, we will verify whether hysteresis curves that can be expressed mathematically can be reproduced through simulation. We focused on analyzing a single component. If you are interested in magnetic field analysis considering hysteresis, please feel free to contact us. [Case Summary] ■ Software Used: PHOTO-MAG *For more details, please refer to the PDF document or feel free to contact us.

• Magnetic field analysis/electromagnetic wave analysis
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Here is an example of magnetic field analysis for magnetic shielding. A coil is placed outside the shield to calculate the internal magnetic field. The analysis model uses the "Box shield model" proposed by the Electrical Engineering Society's Investigation Committee. An external field coil is used, and the analysis model is set to a 1/8 model due to symmetry. The analysis type is nonlinear static magnetic field analysis. Eddy currents are not considered. We have included diagrams of the B-H characteristics of the ss400 used in this analysis, so please refer to the related links below for more details. 【Case Overview】 ■ Analysis Model: Box shield model ■ Analysis Type: Nonlinear static magnetic field analysis ■ Software Used: PHOTO-MAG *For more details, please refer to the related links or feel free to contact us.

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The claw pole motor is divided into the rotor and stator parts, each having a structure as shown in the figure. By incorporating the magnetization of the permanent magnets determined through pre-magnetization analysis, the rotor is rotated in an unloaded state to perform torque analysis. Although this is an analysis involving rotation, it can be conducted without regenerating the air mesh of the gap (the space between the rotor and stator) by using PHOTON's uniquely developed new slide interface. For more details, please download the catalog.

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Magnetic field (magnetic field) analysis software (simulator) using the magnetic moment method for static analysis ■□■Features■□■ ■ You can create an analysis model without creating an air region. ■ It is integrated with the PHOTO series dedicated pre-post, allowing for a seamless operation from data creation to analysis and result processing. ■ By setting the analysis type to inverse problem, you can infer the magnetization of magnetic materials from the magnetic flux density distribution file. ■ You can create display elements to evaluate the analysis values in space.

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The case of analyzing the magnetic field created by magnets and coils is called a forward problem. On the other hand, the problem of determining magnetization or current from the magnetic field distribution is called an inverse problem. In this instance, we will introduce a case where we estimate the magnetization inside a magnet from numerical data of the magnetic flux density on the surface of a plastic magnet, and analyze the magnetic flux density created by that magnetization (inverse problem). For convenience, we will estimate the magnetization from the magnetic flux density obtained through the forward problem and calculate the magnetic flux density at a different location. Since we will use the results of the forward problem, we can compare the results of the forward and inverse problem analyses and evaluate the validity of the inverse problem analysis function. [Case Overview] ■ Software Used: PHOTO-MAGTZ ■ Analysis Results - The magnetic flux density at a position 1mm away from the surface of the magnet is generally consistent between the forward and inverse problems. - There are multiple magnetization distributions that show the same magnetic flux density. *For more details, please refer to the PDF document or feel free to contact us.

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In this case study, we will introduce static magnetic field analysis of various models. "PHOTO-MAGTZ" does not require air mesh. Therefore, it is easy to create models with complex shapes. Additionally, by inputting the current value into the coil, it is possible to simplify the input of current density for coils with complex shapes. You can view the analysis results from the related links below. 【Case Overview】 ■Analysis Module: PHOTO-MAGTZ *For more details, please refer to the related links or feel free to contact us.

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Perform static analysis and transient response analysis Finite element method-based electric field analysis software (Electric field simulator) ■□■Features■□■ ■Since it is integrated with the PHOTO series dedicated pre- and post-processing tools, data creation, analysis, and result processing can be performed as a continuous operation. ■It is integrated with other PHOTO series modules, allowing for easy coupled analysis, such as deriving temperature distribution from heat generation obtained through electromagnetic field analysis. ■Using the ICCG method, calculations are fast, enabling analysis on a personal computer. ■Since it employs the finite element method, the solutions are stable, making it user-friendly even for beginners.

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Here is an example of nonlinear electric field analysis of cable joints. The electric field analysis software "PHOTO-VOLT" and "VOLTjω" can be selected from two modes: electric field analysis and current distribution analysis. This case uses current distribution analysis. In the electrical insulation design of joints for DC power cables, it is necessary to consider the nonlinear conductivity characteristics of the insulator. For detailed analysis results, please refer to the related links below. 【Case Overview】 ■ Software Used: PHOTO-VOLT or VOLTjω *For more details, please refer to the related links or feel free to contact us.

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There is a capacitive proximity switch that can detect both metal and non-metal objects without contact. This sensor detects objects by converting changes in capacitance into electrical signals. In this case study, we will analyze the capacitance between a grounded detection object (metal) and the electrodes within the sensor. We will also observe the changes in capacitance when the relative position of the electrodes is altered from the perspective of the detection object. 【Case Overview】 ■Software Used: PHOTO-VOLT or VOLTjω ■Analysis Type: 3D Electric Field Analysis *For more details, please refer to the related links or feel free to contact us.

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In this analysis case, we will introduce a comparison between the calculated values of the capacitance of a cylindrical capacitor and the theoretical solutions. We will analyze three conditions: "Cylindrical Capacitor (Air)", "Cylindrical Capacitor (Dielectric - Radial Two Layers)", and "Cylindrical Capacitor (Dielectric - Circumferential Two Layers)". Since this case involves electrostatic field analysis, it can be analyzed not only in VOLT but also in VOLTjω. For more details, please refer to the related links below. 【Case Overview】 ■ Software Used: PHOTO-VOLT or VOLTjω ■ Analysis Results - Cylindrical Capacitor (Air): 5.039E-11 - Cylindrical Capacitor (Dielectric - Radial Two Layers): 3.681E-10 - Cylindrical Capacitor (Dielectric - Circumferential Two Layers): 3.780E-10 *For more details, please refer to the related links or feel free to contact us.

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When a high voltage is applied to a coil, as in the case of surge voltage, a locally high electric field is generated, leading to discharge and damage to the coil's insulation. In this case, we analyze the electric field generated when a voltage is applied between insulated coil wires (cables). The electric field strength generated per 1[V] of voltage between the coil wires can be multiplied by the magnitude of the actual applied voltage to consider it as the maximum electric field strength. Please feel free to consult us regarding any concerns about electromagnetic field analysis. 【Case Overview】 ■ Software Used: PHOTO-VOLT *For more details, please refer to the related links or feel free to contact us.

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Here is an example of electric field analysis for a comb-type electrostatic actuator. Electrostatic actuators generate electrostatic force based on the sign of the charges present on opposing electrodes, so electric field analysis is applied. In "PHOTO-VOLT," it is possible to calculate the potential distribution, electric field distribution, and the electrostatic force acting on the electrodes. Additionally, we consider whether the order of the electrostatic force obtained from the analysis results is reasonable. For more details, please refer to the related links below. 【Case Overview】 ■ Software Used: PHOTO-VOLT ■ Analysis Results ・Electrostatic Force (per unit length): 0.792[N] *For more details, please refer to the related links or feel free to contact us.

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We analyzed the electric field distribution between the anode and cathode when 1V and -1V were applied, respectively, in a vacuum. It is assumed that the potential does not vary with time. The analysis module used is PHOTO-VOLT. Since the electrodes are conductors, the moment the potential is applied, charges move to the surface of the electrodes. Therefore, the potential is set on the electrode surface, and modeling the interior of the electrodes is no longer necessary. (Only the space in the vacuum is modeled.) For more details, please download the catalog.

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Perform static analysis and frequency response analysis Electric field analysis software using the finite element method (Electric field simulator) ■□■Features■□■ ■Since it is integrated with the PHOTO series dedicated pre- and post-processing, data creation, analysis, and result processing can be performed as a continuous operation. ■It is integrated with other PHOTO series modules, allowing for easy coupled analysis, such as obtaining temperature distribution from heat generation determined by electromagnetic field analysis. ■Using the ICCG method, calculations are fast, enabling analysis on a personal computer. ■Since it uses the finite element method, the solutions are stable, making it safe for beginners to use.

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Three-dimensional electric field (electric field) analysis software using boundary element method for static analysis (electric field simulator) ■□■Features■□■ ■You can create an analysis model without creating an air region. ■Since it is integrated with the PHOTO series dedicated pre/post, data creation, analysis, and result processing can be performed as a series of operations. ■You can create display elements to evaluate the analysis values in the space.

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The wound-type capacitor has a structure that alternately layers electrode foil and dielectric, featuring a compact design while increasing the surface area of the electrodes. In "PHOTO-VOLTBM," there is no need for air mesh, allowing for the easy creation of complex-shaped models in conjunction with programmatic mesh deformation. In this case study, we will conduct an electric field analysis of the wound-type capacitor. Additionally, we will compare the capacitance obtained from the analysis with the theoretical value. For detailed information on the analysis conditions and results, please refer to the related links below. [Case Overview] ■ Analysis Module: PHOTO-VOLTBM *For more details, please refer to the related links or feel free to contact us.

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The analysis of capacitance is shown below with shape data created from planar elements for the outer surfaces of each component. The number of nodes is 1112, and the number of elements is 1064. Since the boundary element method is used, a mesh for air is not required. The analysis calculations were performed using the electric field analysis software PHOTO-VOLTBM. For more details, please download the catalog.

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2D Axisymmetric and 3D Heat Conduction Analysis Simulator using Finite Element Method ■□■Features■□■ ■ Since it is an integrated pre-post tool dedicated to the PHOTO series, data creation, analysis, and result processing can be performed as a series of operations. ■ It is integrated with other PHOTO series modules, allowing for easy coupled analysis, such as obtaining temperature distribution from heat generation calculated by electromagnetic field analysis. ■ It uses the ICCG method, making calculations fast and enabling analysis on a personal computer. ■ Since it employs the finite element method, the solutions are stable, making it user-friendly even for beginners. ■ Coupled calculations with stress analysis and fluid analysis are easy to perform.

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We will introduce an analysis case that focuses on the boundary conditions used in thermal conduction analysis and compares the theoretical solution with simulation results. The thermal conduction analysis software "PHOTO-THERMO" can be used not only for coupled analysis using heat generation density obtained from electromagnetic field analysis but also as a standalone tool. In this case, we used a circular pipe model as shown in the left figure. We conducted thermal conduction analysis under three conditions: "constant temperature boundary condition," "heat generation density," and "heat transfer boundary condition." Since theoretical solutions can be obtained for all of these, you can evaluate the validity of the program by comparing the analysis results. 【Case Overview】 ■ Conditions for Thermal Conduction Analysis - Constant temperature boundary condition - Heat generation density - Heat transfer boundary condition *For more details, please refer to the related links or feel free to contact us.

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■ Features ■ ■ Uses the ICCG method, allowing for fast calculations and analysis on a computer. ■ Utilizes the finite element method, ensuring stable solutions that can be safely used by beginners. ■ Capable of coupled calculations with electromagnetic field analysis.

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3D Frequency Response Analysis Software (Simulator) ■□■Features■□■ ■ Uses the ICCG method, allowing for fast calculations and analysis on a PC. ■ Utilizes the finite element method, ensuring stable solutions that are safe for beginners to use. ■ Capable of coupled calculations with electromagnetic field analysis. ■ Can perform vibration analysis and acoustic field analysis simultaneously.

• Stress Analysis
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The number of nodes for the stress analysis of the elastic body is 2271, and the number of elements is 1400. For more details, please download the catalog.

• Stress Analysis
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This is a software for coupled analysis of magnetic fields/magnetic fields and heat conduction using the finite element method, capable of performing static analysis and transient response analysis. It can handle three-dimensional, two-dimensional, and axisymmetric problems. ■□■Features■□■ ■Since it is an integrated pre- and post-processor dedicated to the PHOTO series, data creation, analysis, and result processing can be performed as a series of operations. ■A revolutionary speedup has been achieved by combining edge element methods and ICCG methods (dozens of times faster than conventional finite element methods). ■The use of the finite element method ensures stable solutions, making it safe for beginners to use. ■Since EDDY (magnetic field analysis module) and THERMO (heat conduction module) are integrated, the transfer of heat generation density is automatically executed without the need for files. ■It is also possible to use EDDY and THERMO separately.

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This is a software for coupled analysis of magnetic fields/magnetic fields and heat conduction using the finite element method, capable of performing static analysis and frequency response analysis. It can handle three-dimensional, two-dimensional, and axisymmetric problems. ■□■Features■□■ ■Since it is integrated with the PHOTO series dedicated pre- and post-processing, data creation, analysis, and result processing can be performed as a series of operations. ■A revolutionary acceleration has been achieved through the combined use of edge element method and ICCG method (dozens of times faster than conventional finite element methods). ■Since it uses the finite element method, the solutions are stable, making it user-friendly even for beginners. ■The EDDYjω (magnetic field/magnetic field analysis module) and THERMO (heat conduction analysis module) are integrated, allowing for automatic transfer of heat generation density without the need for files. ■It is also possible to use EDDYjω and THERMO independently.

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The analysis of induction heating of a steel plate (coupled analysis of magnetic field and heat) determines the distribution of heat generation due to eddy currents flowing in the steel plate created by a three-phase current magnetic field. Next, thermal conduction is analyzed based on the calculated heat generation. For more details, please download the catalog.

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The analysis of induction heating shows an example of the eddy current and temperature field analysis (induction heating analysis) of a metal tube with a notch when a coil carrying an alternating current of 500 kW at a frequency of 800 kHz surrounds the metal tube. The analysis model is created to include the object of analysis and the surrounding air portion. For more details, please download the catalog.

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The induction heating of gears for hardening was analyzed for cases where the relative permeability depends on temperature (strong coupling) and where it does not depend on temperature (weak coupling). For more details, please download the catalog.

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This is an example of heating the entire cylindrical conductor by moving it and using induction heating. By passing through the center of a coil connected to an AC power source, eddy currents flow on the surface of the conductor, generating heat. The temperature rises from the surface, and heat is conducted internally. Due to the axisymmetric shape of this model, it can be analyzed using 2D axisymmetric analysis. Therefore, plate elements are used. To understand the heat generation distribution and temperature distribution inside the cylindrical conductor, a magnetic-thermal coupled analysis using the finite element method is effective. [Case Overview] ■ Analysis Module: PHOTO - EDDYjω & THERMO *For more details, please refer to the related links or feel free to contact us.

• Magnetic field analysis/electromagnetic wave analysis
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• simulator

Copiers and printers utilize electrophotographic technology. In the electrophotographic process, the steps of "charging," "exposure," "development," "transfer," and "fixing" are followed, leading to paper output. Fixing is the process of solidifying the toner on the paper using heat and pressure. In fixing, energy efficiency and reduced warm-up time are required, and IH technology is used as a heating method. In this case, the heat generation density distribution obtained through magnetic field analysis is used in thermal conduction analysis to analyze the temperature distribution of the roller. The positions of the magnetic core and coil are fixed, and the analysis takes into account the rotation of the roller. For more details, please refer to the related links below. 【Case Overview】 ■ Analysis Type: 3D Analysis ■ Analysis Module: PHOTO - EDDYjω & THERMO *For more details, please refer to the related links or feel free to contact us.

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Using the heat generation density obtained from magnetic field analysis, thermal conduction analysis will be conducted, resulting in a temperature distribution. This is an example of magnetic field-thermal coupled analysis using temperature-dependent electrical conductivity. The heated object is a metal filled in a crucible. An alternating current flows through the coil, and the metal is heated by the eddy currents flowing through it. In induction heating analysis, the temperature distribution varies depending on the elapsed time and the location of the analysis target. When the electrical conductivity has temperature-dependent characteristics, the distribution of electrical conductivity changes by location, necessitating a close coupled analysis of the magnetic field and heat. [Case Overview] ■ Analysis Type: Axisymmetric Analysis ■ Analysis Module: PHOTO - EDDYjω & THERMO ■ Coil: Current Density Vector ■ Frequency: 3 [kHz] ■ Conductor: Temperature Dependence of Electrical Conductivity *For more details, please refer to the related links or feel free to contact us.

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PTC resin has the property of increasing electrical resistance as the temperature rises (temperature dependence). We conducted an analysis of a heater that utilizes this property. This heater has the characteristic that as the temperature rises, the inherent resistance of the PTC resin increases, limiting the current, so it does not exceed a certain temperature. We will perform a current distribution analysis when a voltage of 100[V] is applied to the electrode terminals of the heater. For more details, please download the catalog.

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A piezoelectric material is a dielectric that converts mechanical energy into electrical energy, or vice versa. In this case, force is applied to the upper surface of a cylindrical piezoelectric material, and the resulting voltage is analyzed. Since the equations related to "force" and "electricity" are different, these equations are coupled to analyze the piezoelectric element. Therefore, a coupled analysis of stress and electric field was conducted. The software used for stress analysis and electric field analysis is PHOTO-ELAS and PHOTO-VOLT, respectively. 【Case Overview】 ■ Software Used: PHOTO-ELAS and PHOTO-VOLT ■ Analysis Conditions - Relative Permittivity: 2000 - Young's Modulus: 5×10^10 - Poisson's Ratio: 0.35 - Analysis Modules: VOLT & ELAS *For more details, please refer to the related links or feel free to contact us.

• Magnetic field analysis/electromagnetic wave analysis
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【Features】 ○Outstanding cost performance Low price. An annual license (including maintenance fees) can be obtained for a fixed amount each year. ○Exclusive to the PHOTO series Adopts a dialog similar to that of the PHOTO series. Settings for physical properties and other parameters can be smoothly managed from familiar dialogs on both pre- and post-processing sides. ○Streamlined functionality Equipped only with the necessary functions for electromagnetic field analysis. Does not require expensive pre- and post-processors with many advanced features. Ideal for simple analyses. ○Expanded options Currently, the "PHOTO series" also utilizes Femap, a general-purpose finite element method pre-processor from Siemens in the U.S. By effectively using the high functionality of FEMAP and the cost performance of "GRADE" in suitable applications, users can achieve flexible usage on their side. ●For other functions and details, please contact us.

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■Efficient Work Environment It integrates a series of tasks from geometry creation/modification to finite element model creation and post-processing, providing an efficient and waste-free work environment. ■High Versatility and Neutral Stance in CAE Equipped with interfaces compatible with numerous CAD data and solvers, its high versatility allows for a neutral stance in encompassing CAE, making it possible to serve as a central presence in analysis solutions. ■High Track Record and Reliability Used Worldwide It is utilized across various industries worldwide, including automotive, shipbuilding, aerospace, heavy industry, architecture and construction, precision engineering, and electronics, and continues to be chosen by many engineers due to its high track record and reliability. Among the many pre- and post-processors available, Simcenter Femap has established a solid position as a cost-effective, high-functionality, and user-friendly software. ■Cutting-Edge Features for Over 20 Years Even after more than 20 years since its inception, it continues to expand its features with a focus on usability and performance improvement. It supports a 64-bit environment and is capable of handling large-scale models.

• Magnetic field analysis/electromagnetic wave analysis
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