JMAG provides state-of-the-art simulation methods, from the design stage to the optimization and development stages of Linear/Rotative machines such as claw pole motor, generator, alternator, it can serve a vital role and may provide an efficient solution to the optimization problem.
Our software supports the design process of automobiles by offering excellent modeling and analysis capabilities. It has contributed to the development of the motors and actuators that are commonly used to control the electrical devices and it is also used for the designing and development of hybrid cars and power electronics essential for Fuel Cell Vehicle (FCV) and Electric Vehicle(EV).
From geometry modelling of motor components, model setup, and material modelling to high mesh quality generation, motor cooling, design integration, vibration and acoustic noise, this comprehensive software give more accurate solutions and it can be used for example, to design and optimize:
The studies for Linear/Rotative motors that can be solved by JMAG are:
2D/3D Magnetic Field Analysis (Static, Transient, Frequency)
2D/3D Iron Loss Analysis (Transient, Frequency)
2D/3D Thermal Analysis (Static, Transient)
2D/3D Structural Analysis (Static, Eigenmode, Transient, Frequency)
3D Electric Field Analysis (Static, Frequency, Current distribution)
2D/3D Thermal Stress Analysis (Static, Transient)
2D/3D Motor model for circuit/control simulators
An example of the results that can be obtained by following these analyses are listed below:
Magnetic flux, Magnetic field, Magnetization, Flux linkage, Voltage, Current, Electromagnetic force, Lorentz force, Magnetostriction force, Torque, Inductances, Resistances, Relative permeability, Demagnetization ratio, Permeance coefficient, Coercive force, Stored energy, Joule losses, Hysteresis losses, Iron losses, Dielectric losses, Electric field, Electric potential, Electric Charge, Electric power, Vector potential, Temperature, Heat flux, Heat flow, Heat source, Thermal resistance, Electric potential, Displacement, Deformation, Velocity, Acceleration, Stress, Strain, Sound pressure, Sound Pressure level, motor behavior model, torque and inductance tables (Ld,Lq).
Motor Template: start the design of the motor by using the predefined motor models containing into the JMAG Database and find the motor basic characteristics in one second.
JMAG-Express is a tool to support motor design and it allows the evaluation of motor basic performance characteristics using JMAG’s high-precision solvers and meshers. All motor template-based, it includes everything from concept design with JMAG-Express Quick Mode to basic design and detailed design with JMAG-Express Power Mode.
Motor models supported by JMAG Express:
JMAG Express Public is free.
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Renew it as many time as you want
JMAG-Designer has many tools with different methods to create and import CAD geometry of the motor.
JMAG has since the late-1990s continued maintaining a materials database. We have continued moving forward on function development to meet the rising demand in recent years for even greater precision in loss evaluation (iron losses, magnet losses, copper losses, stray losses, etc.).
The history of JMAG's loss function development
JMAG was the first analysis software to include material properties data. Materials data being vital and yet JMAG database contained more than 700 data items from 12 material manufactures including the material for:
Any users can also personalize their materials by importing or creating the new material data with properties which aren’t listed into the material database.
We can run the FEA simulation by using any electromagnetic steel sheet and permanent magnet materials taking to account their Anisotropic or Isotropic behaviors with the following properties to get the results which describe with higher precision the real physical behaviors of your motors:
The lamination steel sheet properties such as lamination direction, lamination factor, lamination thickness, saturation factor can be also accounted into the simulation.
A device’s iron loss has two components, hysteresis losses and eddy current losses. Hysteresis losses are induced by a changing magnetic field and form as the material’s field traverses it’s BH (Induced versus Applied Magnetic Field) loop. Eddy currents occur with current forms inside of lamination which oppose the changing field. In high efficiency machines, it is critical to accurately model losses in order to correctly determine efficiency. JMAG can both model losses and show where they are located. Using JMAG’s visualization features will show what areas need the most improvement and can help quickly iterate on new designs.
NVH(Noise and Vibration) is a growing concern for machine designers. Switching based power supplies can induce unpleasant NVH in machine which are difficult to mitigate. JMAG can model the electromagnetic forces on stator teeth and then evaluate how these forces will interact with the machine’s modes of vibration to produce noise. Determining the modes of vibration (eigenmodes) for a machine requires capturing the axial stiffness of the laminations and the accurately representing the effects of the components such as the rotor and shaft.
High speed machines can have structural issues that must be accounted for. Interior Permanent Magnet (IPM) machines have magnets buried in the rotor. As the rotor turns faster, the magnets push out the rotor. IPM machines are designed to minimize the amount of flux traveling between magnets by using very thin bridges between the magnets.
Magnetically, the thinner the bridge, the better the design. However, mechanically, a thin bridge may not be able to withstand the structural forces in the rotor.
JMAG can analyze centrifugal forces on a rotor and predict the structural effects in the rotor at high speeds.
Stator windings are susceptible to eddy currents when their skin depth is less than the wire diameter. In applications with a switching power supply, high frequency harmonics can induce non-uniform current distribution in the windings. This leads to an increased resistance and higher losses. Current distribution inside a wire can also be affected by leakage flux and its position inside the slot.
JMAG makes it possible to investigated winding eddy currents by modeling individual wire conductors and the fields they are exposed to. JMAG can also has tools like a Skin Depth Mesh that can more accurately represent the effects of eddy currents inside a wire.
It is possible to create an efficiency map by running a series of machine simulations at different operating points. From each operating point, JMAG can determine the current vector which results in the maximum output power while staying within the voltage bus of the drive. The efficiency as well as copper and iron losses can be displayed as function of the operating point.
The software JMAG is developed by JSOL Corporation and distributed in Europe and USA by Powersys.
JMAG is simulation software developed by the JSOL Corporation for the design and development of electrical equipment’s.
Today, numerical methods are increasingly used for the solution of electromagnetic fields and there is a variety of commercial computer programs based on the finite element method (FEM) used for electric machine design. JMAG are dedicated tool for this king of purpose, it’s useful during the FEA simulation and optimization process of an electrical machine because it provides more advanced methods to assess more accurately the final optimal characteristics of the design. This innovative software offers very suitable solutions for motor designers, engineers, and manufacturers, as well as graduate students, and academic researchers, and it covers the design and design-related issues, modeling and simulation, engineering studies, testing process, and performance characteristics of electric machines.
Duration: 1 day
Location: Gardena, USA
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Duration: 1 day
Location: Sheffield, United Kingdom
Fees: 0€ - 500€
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Duration: 1 day
Location: San Jose, USA
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