Influence of the PRECAL Hydrodynamic Mesh Density on the RMS Stress and Zero Crossing Period Results of STRUC

Authors
  1. Riley, M.
  2. Stredulinsky, D.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
Abstract
The STRUC software is an application for developing load cases using hydrodynamic models, specifically PRECAL, for finite element (FE) ship structural analysis. This study was conducted to determine how the mesh density of the hydrodynamic model influenced the results produced by STRUC. In total there were six mesh densities used varying from 200 facets up to 2078 facets, which is an exact match to the FE wetted hull mesh. The resulting RMS stress response and zero crossing periods are compared for the loading calculated from the varying hydrodynamic meshes. The results were studied to determine if the operational parameters, such as relative heading, wave height, and wave period, influenced the deviation of the results for the less refined meshes compared to the exact FE mesh.

Il y a un résumé en français ici.

Report Number
DRDC-ATLANTIC-TM-2006-204 — Technical Memorandum
Date of publication
01 Jan 2007
Number of Pages
88
DSTKIM No
CA031008
CANDIS No
529715
Format(s):
CD ROM

Permanent link

Document 1 of 1

Date modified: