Predicting Radiated Noise with Power Flow Finite Element Analysis

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Authors
  1. Brennan, D.P.
  2. Koko, T.S.
  3. Jiang, L.
  4. Wallace, J.C.
Corporate Authors
MARTEC Ltd, Halifax NS (CAN);Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
Abstract
The development and incorporation of the latest enhancements to the DRDC’s PFFEA code are described. The purpose of this work was to make the modeling of the physical environment more realistic, while ensuring that the code runs as efficiently as possible. To this end a new high frequency radiated noise prediction capability has been added. This capability is based on algorithms developed for use in DRDC’s AVAST acoustic modeling software tool. In addition to this, a series of upgrades have been made to the PFFFEA processors, PFGEN and POSTPF, in order to ensure compatibility with the latest version of the VASTF program. Finally, a series of validation studies, involving the prediction of the high frequency structural response of DRDC’s ring stiffened test cylinder, are also presented.

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Report Number
DRDC-ATLANTIC-CR-2007-037 — Contractor Report
Date of publication
01 Feb 2007
Number of Pages
23
DSTKIM No
CA030462
CANDIS No
529024
Format(s):
CD ROM

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