Lemonergy · Studio block

DC motor with shaft coupling

Couples electrical current to shaft torque and shaft speed to back EMF, including winding resistance.

Implementation ID: dc-motor
Reviewed: 2026-10-30

Behavior

Couples electrical current to shaft torque and shaft speed to back EMF, including winding resistance.

Interface

Select a terminal or signal to inspect its meaning. This is a conceptual interface, not simulation output.

Ports and observed outputs
Name	Direction	Unit	Meaning
`p`	conserving	electrical	Positive voltage-reference terminal
`n`	conserving	electrical	Negative voltage-reference terminal
`a`	conserving	rotational	Shaft side A
`b`	conserving	rotational	Shaft side B
`voltage`	output	V	Directed output available to compatible consumers: voltage.
`current`	output	A	Directed output available to compatible consumers: current.
`power`	output	W	Directed output available to compatible consumers: power.
`shaft Power`	output	W	Directed output available to compatible consumers: shaft Power.
`loss`	output	W	Directed output available to compatible consumers: loss.

Signal inputs

These directed signals carry information. Conserving terminals exchange the quantities of their physical domain.

Signal outputs

Outputs can supply compatible inputs. Connections and values are inspected in the model that owns them.

Current authoring interface
Pin	Direction	Unit or domain	Meaning
voltage	output	V	Directed output available to compatible consumers: voltage.
current	output	A	Directed output available to compatible consumers: current.
power	output	W	Directed output available to compatible consumers: power.
shaft Power	output	W	Directed output available to compatible consumers: shaft Power.
loss	output	W	Directed output available to compatible consumers: loss.

Parameters

Defaults are initial model values. Select values for your own model and operating conditions.

Configuration fields
Parameter	Unit	Default	Meaning and limits
resistanceOhm `resistanceOhm`	ohm	1	Declared authoring field: resistanceOhm. Minimum 1e-09; Maximum 1000000
motorConstant `motorConstant`	V s/rad = N m/A	0.1	Declared authoring field: motorConstant. Minimum 1e-09; Maximum 1000000

Equations and rules

The behavior and configured interface above define this authoring component. This reference does not add numerical equations beyond its source contract.

Use in Studio

Use this authoring component

Choose this component in the Studio library and configure its declared interface. This reference describes the authoring contract; it does not claim a standalone numerical validation or a measured result.

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Use in a workflow

Connected concepts

Limits and interpretation

The symbolic diagram describes the component and its declared interface. It is not a solved circuit or simulated output.
Configured parameters and model connections determine the result. Check the complete model before interpreting its outputs.

Implementation sources

This reference follows Lemonergy implementation sources. Scientific articles support the linked concepts separately.

Repository: battery-design · Revision: e248d21a9902225f1075624f23e7628b54cdb7cc

docs/glossary/studio-help-catalog.json

This implementation and its workflow uses (JSON) · Knowledge graph (JSON-LD)

Current authoring interface provenance

The interactive graphic is exported from the same Studio help descriptor. Source base: e248d21a9902225f1075624f23e7628b54cdb7cc. File content hashes in the public descriptor catalog identify the exact source snapshot. Existing numerical checks above retain their own verification scope.