Lumped Loudspeaker Driver Using a Lumped Mechanical System

Application ID: 55901

Example of a moving-coil loudspeaker where lumped parameters represent the behavior of the electrical and mechanical components.

The Thiele-Small parameters (small-signal parameters) serve as input to the lumped model, which is represented using the Electric Circuit interface. The lumped model is coupled to a 2D axisymmetric pressure acoustics model, which is used to describe the surrounding air domain. The output from the model includes, among many things, the impedance, and the radiated acoustic power.

In this model, the mechanical speaker components such as moving mass, suspension compliance, and suspension mechanical losses are modeled using the Lumped Mechanical System interface.

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