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Lumped Loudspeaker Driver

Application ID: 12295

This is a model of a moving-coil loudspeaker where a lumped parameter analogy represents the behavior of the electrical and mechanical speaker components. The Thiele-Small parameters (small-signal parameters) serve as input to the lumped model, which is represented by an Electric Circuit physics. The lumped model is coupled to a 2D axisymmetric Pressure Acoustics model describing the surrounding air domain (above and below the speaker cone). The output from the model includes, among many things, the speaker sensitivity, the impedance, and the radiated acoustic power. The results are compared with an analytical solution based on the flat piston approximation.

The model requires the Acoustics Module and the AC/DC Module.

This application was built using the following:

Acoustics Module

The combination of COMSOL® products required to model your application depends on the physics interfaces that define it. Particular physics interfaces may be common to several products (see the Specification Chart for more details). To determine the right combination of products for your project, you should evaluate all of your needs in light of each product's capabilities, consultation with the COMSOL Sales and Support teams, and the use of an evaluation license.