Coil with triangle wave current

QuickField simulation example

This is an example of the multi-stage transient magnetic analysis simulation, performed with QuickField software.

Problem Type
Axisymmetric problem of transient magnetics coupled to transient magnetics.

Geometry

Given
Coil is uniformly wound by thin wire, with total ampere-turns following the triangle wave function shown on this diagram:

Task
Simulate first 3 seconds of the transient process.

Solution
Simulation is performed by 3 separate transient magnetic analysis problems covering stages of the process one second each. They share the same geometry model, and are connected by Magnetic Field coupling mechanism. The magnetic field at the end of Stage 1 is coupled to Stage 2 as the initial magnetic field of Stage 2. Magnetic field at the end of the Stage 2 is coupled to Stage 3.

Result
Flux density time plots at the origin of the coordinate system
Coil with triangle wave current

Download simulation files (files may be viewed using any QuickField Edition).