Stepper motor torque - QuickField simulation example
Engineering question
How to calculate stepper-motor torque as a function of rotor position?
Answer
Use LabelMover to sweep rotor position in a plane-parallel DC-magnetic model and calculate electromagnetic torque at each step.
Typical applications
stepper motors, positioning actuators, incremental motion drives
Download
- Download simulation files (files may be viewed using any QuickField Edition).
Simulation problem
Problem TypePlane-parallel problem of DC magnetics
Geometry
Stator length Lz = 30 mm.
Given
Stator teeth number 88.
Coil current I = 4*100 Ampere-turn
Steel magnetic permeability μ - BH-curve::
Task
Calculate torque vs. rotor position.
Solution
Parametric tool LabelMover is used to automate calculations.
Results
Torque vs. rotor position
Video
- Stepper motor torque. Watch on YouTube