Assessment of the solution and prediction algorithms during the optimization of fluid-structure interaction dynamic systems

Authors

  • Walter Jesus Paucar Casas Univ. Federal do Rio Grande do Sul, Depto. de Engenharia Mecânica, Rua Sarmento Leite 425, CEP 90050-170, Porto Alegre-RS, Brazil
  • Renato Pavanello Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica, Depto. de Mecanica Computacional, C.P. 6122, CEP 13083-970, Campinas-SP, Brazil
  • Paulo Henrique Trombeta Zannin Univ. Federal do Paraná, Depto. de Engenharia Mecânica, Centro Politécnico, C. P. 19011, CEP 81531-990, Curitiba-PR, Brazil

Keywords:

Acoustic waves, Algorithms, Ducts, Eigenvalues and eigenfunctions, Mathematical models, Optimization, Parameter estimation, Pressure vessels, Problem solving, Dynamic systems, Fluid domain, Sound transmission, Structural failures

Abstract

For optimization problems based on dynamic criteria the system eigenvalues must be re-computed for each ' iteration as the values of the design parameters are changed. From a computational point of view it would be more efficient to replace the laborious process of determining the eigenvalues by direct prediction. The suitability and advantages of this scheme are examined here. The number of operations required by the direct and the predictive solution algorithms are compared. The prediction scheme has been applied to the problem of maximizing the separation of two adjacent eigenvalues for structural and couple fluid-structure systems.

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Published

2004-12-01

How to Cite

1.
Casas WJP, Pavanello R, Zannin PHT. Assessment of the solution and prediction algorithms during the optimization of fluid-structure interaction dynamic systems. Canadian Acoustics [Internet]. 2004 Dec. 1 [cited 2021 Dec. 6];32(4):47-52. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1705

Issue

Section

Technical Articles