Absorptive Muffler with Shells

Application ID: 14717

This model describes the pressure wave propagation in a muffler for an internal combustion engine. The purpose of the model is to show how to analyze both inductive and resistive damping in pressure acoustics as well as coupling the fluid to the surrounding elastic shell structure of the muffler. Finally, the eigenmodes of a pure structural problem is analyzed and the modes compared to peaks in the transmission loss.

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