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Didier Lemosse - One of the best experts on this subject based on the ideXlab platform.

  • Sensitivity Analysis of Load Application Methods for Shell Finite Element Models
    Optimization of Complex Systems: Theory Models Algorithms and Applications, 2020
    Co-Authors: Wilson Javier Veloz Parra, Younes Aoues, Didier Lemosse
    Abstract:

    Wind turbine blades are subjected to wind pressure and inertial loads from their rotational velocity and acceleration, that depends on the external environment and the turbine control (start-up, normal energy production, shut down procedures, etc.). Several numerical tools are developed to compute the applied loads to the wind turbine blades. These numerical tools are generally based on multiphysics simulation (aeroelasticity, aerodynamics, turbulence, etc.) and multibody beam finite element model of the whole turbine. However, when we are interested in optimizing the structural blades, we need to use shell finite element models in the structural analysis. Thus, the loads estimated by using the beam element are transformed into a 3D distribution pressure loads for the shell element. Several Load Application Methods are developed in the literature. However, in the context of the structural reliability analysis and optimization of the wind turbine blades, the suitable method should be selected with respect to his sensitivity to uncertain input parameters. This study present, a sensitivity analysis of the output of two load Application Methods for shell finite element models, with respect to uncertain input parameters as loads and material properties. The Morris method is used to carry out a sensitivity analysis. Both load Application Methods are sensitive to the change of the thickness in the materials and have a greater effect than the distributed loads applied by section.

  • WCGO - Sensitivity Analysis of Load Application Methods for Shell Finite Element Models.
    Advances in Intelligent Systems and Computing, 2019
    Co-Authors: Wilson Javier Veloz Parra, Younes Aoues, Didier Lemosse
    Abstract:

    Wind turbine blades are subjected to wind pressure and inertial loads from their rotational velocity and acceleration, that depends on the external environment and the turbine control (start-up, normal energy production, shut down procedures, etc.). Several numerical tools are developed to compute the applied loads to the wind turbine blades. These numerical tools are generally based on multiphysics simulation (aeroelasticity, aerodynamics, turbulence, etc.) and multibody beam finite element model of the whole turbine. However, when we are interested in optimizing the structural blades, we need to use shell finite element models in the structural analysis. Thus, the loads estimated by using the beam element are transformed into a 3D distribution pressure loads for the shell element. Several Load Application Methods are developed in the literature. However, in the context of the structural reliability analysis and optimization of the wind turbine blades, the suitable method should be selected with respect to his sensitivity to uncertain input parameters. This study present, a sensitivity analysis of the output of two load Application Methods for shell finite element models, with respect to uncertain input parameters as loads and material properties. The Morris method is used to carry out a sensitivity analysis. Both load Application Methods are sensitive to the change of the thickness in the materials and have a greater effect than the distributed loads applied by section.

H D Yonce - One of the best experts on this subject based on the ideXlab platform.

  • evaluation of Application Methods of metam sodium for management of fusarium crown and root rot in tomato in southwest florida
    Plant Disease, 1998
    Co-Authors: R J Mcgovern, L A Datnoff, Charles S. Vavrina, Joseph W. Noling, H D Yonce
    Abstract:

    ABSTRACT Experiments were conducted during 1992 to 1995 to evaluate the effectiveness of Application Methods of metam sodium (MS; sodium N-methyldithio-carbamate) for the management of Fusarium crown and root rot (FCRR) caused by Fusarium oxysporum f. sp. radicis-lycopersici in mulched and staked tomatoes (Lycopersicon esculentum Mill.) grown on raised beds in commercial fields in southwest Florida. Efficacy of MS was compared with soil-injection of methyl bromide-chloropicrin (MBC), the current industry practice for production of tomatoes in Flor-ida. The incidence of FCRR was consistently high in nontreated plots (80 to 100%), but disease severity varied by site, and yields were reduced by 10 to 57% at sites with high disease severity when compared to sites treated with MBC at 336 to 448 kg/ha. Application of MBC reduced FCRR incidence in all experiments. Chemigation with MS at 701 or 935 liters/ha into mulched beds using either one or two drip irrigation tubes placed on the soil surface, and soil injec...

Mukrimin Sevket Guney - One of the best experts on this subject based on the ideXlab platform.

  • Solar power and Application Methods
    Renewable and Sustainable Energy Reviews, 2016
    Co-Authors: Mukrimin Sevket Guney
    Abstract:

    Abstract Solar energy conversion and its Application Methods varies in wide range from passive solar to heat building to complex concentrated form to generate electricity. It is crucial to know these structures in detail and to classify them in methodical order. The constituent mechanism of primary energy sources have been briefly mentioned. Hereafter the classification of renewable energies, various Application Methods of solar power, the amount of solar energy falling on the earth, the main effects created by solar energy, and energy conversion Methods, inclusively concentrated solar power, have been discussed.

R J Mcgovern - One of the best experts on this subject based on the ideXlab platform.

  • evaluation of Application Methods of metam sodium for management of fusarium crown and root rot in tomato in southwest florida
    Plant Disease, 1998
    Co-Authors: R J Mcgovern, L A Datnoff, Charles S. Vavrina, Joseph W. Noling, H D Yonce
    Abstract:

    ABSTRACT Experiments were conducted during 1992 to 1995 to evaluate the effectiveness of Application Methods of metam sodium (MS; sodium N-methyldithio-carbamate) for the management of Fusarium crown and root rot (FCRR) caused by Fusarium oxysporum f. sp. radicis-lycopersici in mulched and staked tomatoes (Lycopersicon esculentum Mill.) grown on raised beds in commercial fields in southwest Florida. Efficacy of MS was compared with soil-injection of methyl bromide-chloropicrin (MBC), the current industry practice for production of tomatoes in Flor-ida. The incidence of FCRR was consistently high in nontreated plots (80 to 100%), but disease severity varied by site, and yields were reduced by 10 to 57% at sites with high disease severity when compared to sites treated with MBC at 336 to 448 kg/ha. Application of MBC reduced FCRR incidence in all experiments. Chemigation with MS at 701 or 935 liters/ha into mulched beds using either one or two drip irrigation tubes placed on the soil surface, and soil injec...

Younes Aoues - One of the best experts on this subject based on the ideXlab platform.

  • Sensitivity Analysis of Load Application Methods for Shell Finite Element Models
    Optimization of Complex Systems: Theory Models Algorithms and Applications, 2020
    Co-Authors: Wilson Javier Veloz Parra, Younes Aoues, Didier Lemosse
    Abstract:

    Wind turbine blades are subjected to wind pressure and inertial loads from their rotational velocity and acceleration, that depends on the external environment and the turbine control (start-up, normal energy production, shut down procedures, etc.). Several numerical tools are developed to compute the applied loads to the wind turbine blades. These numerical tools are generally based on multiphysics simulation (aeroelasticity, aerodynamics, turbulence, etc.) and multibody beam finite element model of the whole turbine. However, when we are interested in optimizing the structural blades, we need to use shell finite element models in the structural analysis. Thus, the loads estimated by using the beam element are transformed into a 3D distribution pressure loads for the shell element. Several Load Application Methods are developed in the literature. However, in the context of the structural reliability analysis and optimization of the wind turbine blades, the suitable method should be selected with respect to his sensitivity to uncertain input parameters. This study present, a sensitivity analysis of the output of two load Application Methods for shell finite element models, with respect to uncertain input parameters as loads and material properties. The Morris method is used to carry out a sensitivity analysis. Both load Application Methods are sensitive to the change of the thickness in the materials and have a greater effect than the distributed loads applied by section.

  • WCGO - Sensitivity Analysis of Load Application Methods for Shell Finite Element Models.
    Advances in Intelligent Systems and Computing, 2019
    Co-Authors: Wilson Javier Veloz Parra, Younes Aoues, Didier Lemosse
    Abstract:

    Wind turbine blades are subjected to wind pressure and inertial loads from their rotational velocity and acceleration, that depends on the external environment and the turbine control (start-up, normal energy production, shut down procedures, etc.). Several numerical tools are developed to compute the applied loads to the wind turbine blades. These numerical tools are generally based on multiphysics simulation (aeroelasticity, aerodynamics, turbulence, etc.) and multibody beam finite element model of the whole turbine. However, when we are interested in optimizing the structural blades, we need to use shell finite element models in the structural analysis. Thus, the loads estimated by using the beam element are transformed into a 3D distribution pressure loads for the shell element. Several Load Application Methods are developed in the literature. However, in the context of the structural reliability analysis and optimization of the wind turbine blades, the suitable method should be selected with respect to his sensitivity to uncertain input parameters. This study present, a sensitivity analysis of the output of two load Application Methods for shell finite element models, with respect to uncertain input parameters as loads and material properties. The Morris method is used to carry out a sensitivity analysis. Both load Application Methods are sensitive to the change of the thickness in the materials and have a greater effect than the distributed loads applied by section.