2. Analysis Type

2. Analysis Type#

Specifies the analysis type to run, such as static, time-domain, or frequency-domain analysis.

Input settings#

2_Analysis_Type JSON key: analysis type object

STATIC(2) Sets static magnetic-field, static electric-field, or steady-current-field analysis.

AC(2) Sets frequency-domain analysis.

TRANSIENT(2) Sets time-domain analysis.

MOTION(2) Sets coupled motion analysis.

NON_LINEAR(2) Sets nonlinear analysis.

TEMP_DEPEND(2) Sets temperature-dependent material-property analysis.

STEADY_CURRENT(2) Sets steady-current eddy-current analysis.

Input format#

Text-format section
Type:

Fixed parameter set

Number of rows:

1

Number of parameters:

8

Text format#
* STATIC * STEP * AC * TRANSIENT * MOTION * NON_LINEAR * TEMP_DEPEND * STEADY_CURRENT *
    I       I     I        I          I         I             I               I

Important

The STEP option is disabled. Specify 0.

JSON format#

JSON format from 2024.11#
"2_Analysis_Type": {
    "STATIC": I,
    "AC": I,
    "TRANSIENT": I,
    "NON_LINEAR": I,
    "STEADY_CURRENT": I
},

Important

Release 2024.11

In JSON format, do not define STEP (disabled), MOTION, or TEMP_DEPEND. Set MOTION(19) in the 19_Motion block and TEMP_DEPEND_BH_CURVE_ID(16.1) in 16_Material_Properties.

Examples#

Static analysis#

Text-format section
Text format#
* STATIC * STEP * AC * TRANSIENT * MOTION * NON_LINEAR * TEMP_DEPEND * STEADY_CURRENT *
    1       0     0        0          0         0             0              0
JSON format from 2024.11#
"2_Analysis_Type": {
    "STATIC": 1,
    "AC": 0,
    "TRANSIENT": 0,
    "NON_LINEAR": 0,
    "STEADY_CURRENT": 0
},

Transient analysis#

Text-format section
Text format#
* STATIC * STEP * AC * TRANSIENT * MOTION * NON_LINEAR * TEMP_DEPEND * STEADY_CURRENT *
    0       0     0        1          0         0             0              0
JSON format from 2024.11#
"2_Analysis_Type": {
    "STATIC": 0,
    "AC": 0,
    "TRANSIENT": 1,
    "NON_LINEAR": 0,
    "STEADY_CURRENT": 0
},

Steady-state AC analysis#

Text-format section
Text format#
* STATIC * STEP * AC * TRANSIENT * MOTION * NON_LINEAR * TEMP_DEPEND * STEADY_CURRENT *
    0       0     1        0          0         0             0              0
JSON format from 2024.11#
"2_Analysis_Type": {
    "STATIC": 0,
    "AC": 1,
    "TRANSIENT": 0,
    "NON_LINEAR": 0,
    "STEADY_CURRENT": 0
},

Frequency-domain quasi-electrostatic analysis (complex relative permittivity)#

JSON format from 2026.09#
"2_Analysis_Type": {
    "STATIC": 2,
    "AC": 1,
    "TRANSIENT": 0,
    "NON_LINEAR": 0,
    "STEADY_CURRENT": 0
},

Frequency-domain quasi-electrostatic analysis (complex conductivity)#

JSON format from 2026.09#
"2_Analysis_Type": {
    "STATIC": 3,
    "AC": 1,
    "TRANSIENT": 0,
    "NON_LINEAR": 0,
    "STEADY_CURRENT": 0
},

Detailed description#

2_Analysis_Type#

2_Analysis_Type#
JSON key:

Analysis type object

STATIC#

STATIC(2)#

Static analysis setting.

Text-format section
Fixed parameter set 1#
[row, col] = [1, 1]
Analysis process setting#

Setting value

Operation

1

Run static magnetic-field analysis

2

Run static electric-field analysis

3

Run steady-current-field analysis

STEP

Text-format section
Fixed parameter set 1#
[row, col] = [1, 2]

Important

This option is disabled. Always specify 0 in text format.

Do not define this option in JSON format.

AC#

AC(2)#

Frequency-domain analysis setting.

Text-format section
Fixed parameter set 1#
[row, col] = [1, 3]
Analysis process setting#

Setting value

Operation

1

Frequency-domain analysis

2

Frequency-domain analysis including materials with complex permeability

3

Frequency-domain analysis using the Darwin model

4

Full-wave frequency-domain analysis (incomplete; implemented only for comparison with the Darwin model)

5

Frequency-domain analysis using redundant variables with the Darwin model

The combination of STATIC = 2 (static electric-field analysis) or = 3 (steady-current-field analysis) and AC = 1 (frequency-domain analysis) runs frequency-domain quasi-electrostatic analysis. Quasi-electrostatic analysis uses permittivity and conductivity.

Caution

  • Full-wave frequency-domain analysis is incomplete and is implemented only for comparison with the Darwin model.

  • The Darwin model is a beta feature. Contact us if you would like to use it.

Note

Revision history:

Release 11.3.1

Added complex permeability settings (AC = 2 mode).

Release 2025.05

Added Darwin model settings (AC = 3, 5).

Release 2026.09

Extended quasi-electrostatic analysis settings.

For quasi-electrostatic analysis, all modes use the ordinary relative permittivity EPS and conductivity SIGMA in 16.1 3D Element Properties. These differ from EPS_COMPLEX, which is used for the Darwin approximation.

For quasi-electrostatic analysis with STATIC = 2 + AC = 1, complex relative permittivity is defined as follows.

(1)#\[\dot{\varepsilon} = \epsilon - j\frac{\sigma}{\omega}\]

For quasi-electrostatic analysis with STATIC = 3 + AC = 1, complex conductivity is defined as follows.

(2)#\[\dot{\varsigma} = \sigma + j\omega\epsilon\]

TRANSIENT#

TRANSIENT(2)#

Time-domain analysis setting.

Text-format section
Fixed parameter set 1#
[row, col] = [1, 4]
Analysis process setting#

Setting value

Operation

1

Run time-domain analysis including eddy currents

3

Run time-domain analysis using the Darwin model

5

Run time-domain analysis using redundant variables with the Darwin model

MOTION#

MOTION(2)#

Coupled motion analysis setting.

Text-format section
Fixed parameter set 1#
[row, col] = [1, 5]
Analysis process setting#

Setting value

Operation

1

Run static or transient magnetic-field analysis with mesh motion or moving COIL(17.1).

2

Run sliding-motion analysis

3

Run mesh-deformation motion analysis

NON_LINEAR#

NON_LINEAR(2)#

Nonlinear analysis setting.

Text-format section
Fixed parameter set 1#
[row, col] = [1, 6]
Analysis process setting#

Setting value

Operation

1

Run nonlinear analysis for static magnetic-field or time-domain analysis. Also use this setting when using nonlinear surface impedance in frequency-domain analysis.

TEMP_DEPEND#

TEMP_DEPEND(2)#

Temperature-dependent material-property analysis setting.

Text-format section
Fixed parameter set 1#
[row, col] = [1, 7]
Analysis process setting#

Setting value

Operation

1

Run temperature-dependent analysis of magnetization BH curves and conductivity

Note

Revision history

Release 12.0.6 Added temperature-dependent analysis.

STEADY_CURRENT#

STEADY_CURRENT(2)#

Steady-current eddy-current analysis setting.

Text-format section
Fixed parameter set 1#
[row, col] = [1, 8]
Analysis process setting#

Setting value

Operation

1

Run steady-current eddy-current analysis

Caution

STATIC, AC, TRANSIENT, and STEADY_CURRENT select the analysis mode. As a rule, select only one mode: set one of them to >= 1 and set the others to 0. For frequency-domain quasi-electrostatic analysis, however, combine STATIC = 2 or 3 with AC = 1. Set all unused functions to 0.