Graphical Acoustic Liner Design and Analysis Tool

The Interactive Liner Impedance Analysis and Design (ILIAD) tool is a software package used to design the composite surface impedance of an acoustic liner using resonant channels. ILIAD’s graphical user interface allows the acoustic channel geometry to be drawn in the liner volume while the surface impedance and absorption coefficient calculations are updated in real time. A one-dimensional transmission line model serves as the basis for the impedance calculation and can be applied to many liner configurations. The software can be used to design arrays of resonators that can be packaged into complex geometries heretofore unsuitable for effective acoustic treatment.