Comparison of SEA and PFFEA predictions of in-air and underwater radiated noise from a ring-stiffened cylinder

Authors

  • Layton E. Gilroy Def. Research Establishment Atlantic, P.O. Box 1012, Dartmouth, NS B2Y 3Z7, Canada

Keywords:

Acoustic noise measurement, Cylinders (shapes), Finite element method, Mathematical models, Statistical methods, Vibrations (mechanical), Power flow finite element analysis (PFFEA), Ring-stiffened cylinder, Software package SEAM, Software package SNAP, Statistical energy analysis (SEA), Underwater radiated noise

Abstract

The in-air and underwater experiments performed with a ring-stiffened cylinder are described. Broadband excitation was employed for the measurement of input mobility's response along with the resulting radiated noise in-air and underwater. These data were compared by statistical energy analysis (SEA) and power flow finite element analysis (PFFEA). The radiated noise predictions were made with a boundary element based post-processing software. SNAP, embodiment of PFFEA, underpredicted exterior radiated noise while SEAM, a software implementation of SEA, underpredicted interior noise.

Published

2000-09-01

How to Cite

1.
Gilroy LE. Comparison of SEA and PFFEA predictions of in-air and underwater radiated noise from a ring-stiffened cylinder. Canadian Acoustics [Internet]. 2000Sep.1 [cited 2021May9];28(3):174-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1343

Issue

Section

Proceedings of the Acoustics Week in Canada