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Design optimization for a simulation of rotating anisotropic viscoelastic porous structures using time-domain OQBEM

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  • Fahmy, Mohamed Abdelsabour

Abstract

The main purpose of this paper is to propose a novel efficient design optimization technique based on the operational quadrature boundary element method (OQBEM) for a simulation study on the material distribution and influence of rotation on the optimal design of rotating anisotropic viscoelastic porous permeable structures. An implicit differentiation method was developed to calculate the design sensitivities of displacements and pore pressure with respect to design variables and the effects of rotation on these sensitivities are also discussed. The optimization problem is solved using the Moving Asymptotes Method (MAM) which requires the calculation of the sensitivities for objective function and constraints by adjoint variable method. The optimum shape design of an elliptical sandwich structure is used as the numerical example to verify the validity and accuracy of the proposed technique.

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  • Fahmy, Mohamed Abdelsabour, 2019. "Design optimization for a simulation of rotating anisotropic viscoelastic porous structures using time-domain OQBEM," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 166(C), pages 193-205.
    • Handle: RePEc:eee:matcom:v:166:y:2019:i:c:p:193-205
    DOI: 10.1016/j.matcom.2019.05.004
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    1. Almhdie, Ahmad & Rozenbaum, Olivier & Lespessailles, Eric & Jennane, Rachid, 2014. "Image processing for the non-destructive characterization of porous media. Application to limestones and trabecular bones," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 99(C), pages 82-94.
    2. Abouchabaka, J. & Aboulaich, R. & Guennoun, O. & Nachaoui, A. & Souissi, A., 2001. "Shape optimization for a simulation of a semiconductor problem," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 56(1), pages 1-16.
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    Cited by:

    1. Kotb, Ahmed T.M. & Nawar, Mohamed A.A. & Attai, Youssef A. & Mohamed, Mohamed H., 2024. "Impact of tapered leading-edge micro-cylinder on the performance of wells turbine for wave energy conversion: CFD-optimization algorithms coupling study," Energy, Elsevier, vol. 293(C).
    2. Kotb, Ahmed T.M. & Nawar, Mohamed A.A. & Attai, Youssef A. & Mohamed, Mohamed H., 2023. "Performance enhancement of a Wells turbine using CFD-optimization algorithms coupling," Energy, Elsevier, vol. 282(C).

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