Electromagnetic Plunger with Stopper

Application ID: 36631


This is a transient model of an electromagnetic plunger with stopper restricting the linear motion. The model consists of a magnetic core, nonmagnetic guider, multi-turn coil, nonmagnetic stopper/blocker, and magnetic plunger attached to the spring and damper at the far end.

The electromagnetic force on the plunger due to the transient current in the coil is calculated using the Maxwell stress tensor method in Magnetic Fields physics. The electromagnetic force is then added to the dynamical equation of motion of the plunger using the Global ODEs and DAEs physics. The contact and the release operation of the plunger is modeled using the Events interface.

This model is featured and explained in much greater detail in the following blog post: Part 2: Model a Linear Electromagnetic Plunger with a Blocker.

This model example illustrates applications of this type that would nominally be built using the following products: