Magnetic-Thermal Tab

Setting Item

Notes

Analysis Type

(for magnetic analysis)

Static analysis

The constant load, voltage or current is applied.

Harmonic analysis

The sinusoidal load, voltage or current is applied.

Transient Analysis

Transient states are analyzed.

(Note) The magnetic-transient analysis is available in an optional package.

Analysis Type

(for thermal analysis)

Steady-state analysis

There is no time dependency.

Transient Analysis

Transient states are analyzed.

Options

Notes

Ambient Temperature

Sets the ambient temperature.

Ambient temperature can be used for various kinds of temperature settings.

・Ambient temperature and ambient radiation temperature on the [Thermal tab].

・Unless specified individually, the ambient temperature set here is used as the ambient radiation temperature.

Radiation Setting

Enables the settings relating to the radiation.

- Outer boundary condition setting

・Default value of emissivity

・Emissivity of each body attribute

・Emissivity of each boundary condition

Click to show [Radiation Setting] dialog box.

Reference type of the loss given by the magnetic transient analysis.

In the transient analysis, select a type from the following.

Calculation over one period from final step

In the magnetic analysis, the loss is calculated at the timesteps over one periodic cycle covered backward from the final step of the fundamental frequency.
The result is referred to as the heat quantity (constant with time) in the thermal analysis.

If the iron loss is set for the material, calculation is allowed only with this type. (Because iron loss calculation requires the magnetic flux density distribution for one period.)

Periodic time is calculated by [1/fundamental frequency]

For the details of fundamental frequency, refer to [Fundamental Frequency] on the [Iron Loss] tab.

Losses are calculated as follows.

• If the total time of all steps is not longer than a periodic time, calculation cannot be performed correctly.

Value at the final step

In the magnetic analysis, the loss is calculated at the final timestep. The result is referred to as the heat quantity (constant over the time) in the thermal analysis.

Value at each step

Selectable for the transient thermal analysis.

The iron loss is calculated at each time step in the magnetic analysis. The result is referred to as a heat quantity at each timestep in the thermal analysis.

Options

Notes

Calculate the inductance

Calculates the self-inductance, mutual inductance, and impedance.

If deselected, the calculation of multiple coils will be faster. It is recommended to deselect this option unless it is necessary.

Selectable in the harmonic analysis.

• In the static analysis, it cannot be deselected.

Calculate the torque

Calculates the torque of the electromagnetic force.

Available for the 2D or 3D static analysis.

Analysis Options

Notes

External Circuit Coupling

Executes a coupled analysis with the external circuit.

Click and launch Circuit Editor to edit external circuit.

Rotating Machinery

Analyzes rotating machinery such as motor and generator.

Refer to [Rotating machinery tab] for detailed setting.

Partial Model (Symmetric Model) Setting

See [Magnetic Analysis] > Options (Transient analysis) > [Partial Model (Symmetric Model) Setting].

Fundamental Frequency (one period, used for iron loss calculation)

See [Magnetic Analysis] > Options (Transient analysis) > [Fundamental Frequency (one period, used for iron loss calculation)].