Lemonergy · Studio block
Ideal rotational motor coupler
Lossless back-emf/torque conversion; no winding resistance, friction or electromagnetic storage
- Implementation ID
rotational-converter- Reviewed
- 2026-10-27
Behavior
Conserving component solved simultaneously with the connected network. Lossless back-emf/torque conversion; no winding resistance, friction or electromagnetic storage
Interface
| Name | Direction | Unit | Meaning |
|---|---|---|---|
p | terminal | V; A | electrical conserving connection; voltage across and current through the connected branch. |
n | terminal | V; A | electrical conserving connection; voltage across and current through the connected branch. |
a | terminal | rad/s; N m | rotational conserving connection; shared mechanical position or speed with balanced effort. |
b | terminal | rad/s; N m | rotational conserving connection; shared mechanical position or speed with balanced effort. |
current | output | A | Recorded current measurement from the conserving simulation. |
voltage | output | V | Recorded voltage measurement from the conserving simulation. |
mechanicalPower | output | W | Recorded mechanicalPower measurement from the conserving simulation. |
Parameters
Defaults are initial model values. Select values for your own model and operating conditions.
| Parameter | Unit | Default | Meaning and limits |
|---|---|---|---|
Conversion constantconstant | V s/rad = N m/A | 0.1 | The same constant relates motion to back-emf and current to mechanical effort. Minimum 1e-09; Maximum 1000000 |
Equations and rules
V = K (ωa − ωb)τ = K IV I = τ (ωa − ωb)
Worked example
Ideal rotational motor coupler worked example
Editable first-party network. target: constant=2; supply: currentA=1. Checks below were verified in the native execution engine.
Open Studio example after release →| Output | Time (s) | Expected value | Unit | Absolute tolerance |
|---|---|---|---|---|
currenttarget/current | 1 | 1 | A | 1e-06 |
voltagetarget/voltage | 1 | 4 | V | 3.999999999998847e-06 |
mechanicalPowertarget/mechanicalPower | 1 | 4 | W | 3.999999999998847e-06 |
Use in a workflow
Ideal rotational motor coupler worked example
Lossless back-emf/torque conversion; no winding resistance, friction or electromagnetic storage
- Ideal rotational motor coupler: Conserving component solved simultaneously with the connected network. Lossless back-emf/torque conversion; no winding resistance, friction or electromagnetic storage
- Use the block reference for settings and connections.
- Implementation tested locally; public release pending.
Connected concepts
Limits and interpretation
- Lossless back-emf/torque conversion; no winding resistance, friction or electromagnetic storage
- Demonstration parameters are not calibrated hardware data. Singular or incompatible ideal constraints and unsupported state ranges stop the run.
Scientific and mathematical references
These sources explain the scientific and mathematical background. The behavior, interface and limits above define the Lemonergy implementation; a citation does not imply every model option in the source is implemented.
- Kirchhoff's Rules
OpenStax, Rice University
Technical reference · Underlying physical law or reduced-model basis; Lemonergy implementation choices and limits are documented separately.
- Electrical Energy and Power
OpenStax, Rice University
Technical reference · Underlying physical law or reduced-model basis; Lemonergy implementation choices and limits are documented separately.
Implementation sources
This reference follows the public interface and locally verified numerical checks for an upcoming release.
Contract: Lemonergy Studio public contract · Verification record: verification-2026-10-27
docs/glossary/native-block-verification.json
This implementation and its workflow uses (JSON) · Knowledge graph (JSON-LD)