1.
JASA Express Lett
; 2(12): 125601, 2022 Dec.
Article
in English
| MEDLINE
| ID: mdl-36586967
ABSTRACT
Computing sound power using complex-valued surface velocities involves using a geometry-dependent acoustic radiation resistance matrix multiplied by a velocity vector to compute sound power for a given frequency range. Using a laser scan grid with constant spacing and a scalar radiator area approximation, a multi-layered Toeplitz symmetry exists in the radiation resistance matrix. An innovative approach was developed to exploit this Toeplitz symmetry. This approach preserved accuracy and resulted in a maximum of â¼1300% computation time reduction for curved plate calculations and a â¼9600% computation time reduction for cylindrical shell sound power calculations.