Graphical Acoustic Liner Design and Analysis Tool

摘要

An interactive liner design and impedance modeling tool comprises software utilized to design acoustic liners for use in constrained spaces, both regularly and irregularly shaped. A graphical user interface allows the acoustic channel geometry to be drawn in a liner volume while the surface impedance calculations are updated and displayed in real-time. A one-dimensional transmission line model may be used as the basis for the impedance calculations.

主权项

1. A method of designing acoustic liners, the method comprising:
providing code that utilizes input data to produce a drawing image that can be viewed on a display screen; utilizing the code to form an image representing an acoustic liner on a display screen, the image including a plurality of resonator channels having channel geometries; providing code that utilizes input data concerning the channel geometries to calculate predicted acoustic impedance and absorption of noise by the resonator channels; causing the code to calculate output data concerning predicted acoustic impedance and absorption of noise by the acoustic liner, wherein the code generates an image on a display screen representing predicted acoustic impedance and absorption of noise by the acoustic liner; and wherein: the code causes the image representing predicted acoustic impedance and absorption of noise to change upon changing the geometry of at least a selected one of the geometry of the resonator channels.