Multiobjective optimisation and integrated design of wind turbine blades using WTBM-ANSYS for high fidelity structural analysis

Maheri, Alireza

doi:10.1016/j.renene.2019.06.013

Cited by 10 publications

(2 citation statements)

References 47 publications

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“…Thus, it is essential to create the first model and define the most suitable options for optimization according to this model for the optimum solution. 43 The total weight of the system decreased from 895 to 797.28 kg, and 97.72 kg of material was saved in one machine. The fatigue calculation for this final design was conducted again using nCode DesignLife.…”

Section: Resultsmentioning

confidence: 99%

Strength-based design of a sunflower stalk cutter machine design using finite element analysis and experimental validation

İrsel

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this study, the total algorithm of the strength-based design of the system for mass production has been developed. The proposed algorithm, which includes numerical, analytical, and experimental studies, was implemented through a case study on the strength-based structural design and fatigue analysis of a tractor-mounted sunflower stalk cutting machine (SSCM). The proposed algorithm consists of a systematic engineering approach, material selection and testing, design of the mass criteria suitability, structural stress analysis, computer-aided engineering (CAE), prototype production, experimental validation studies, fatigue calculation based on an FE model and experimental studies (CAE-based fatigue analysis), and an optimization process aimed at minimum weight. Approximately 85% of the system was designed using standard commercially available cross-section beams and elements using the proposed algorithm. The prototype was produced, and an HBM data acquisition system was used to collect the strain gage output. The prototype produced was successful in terms of functionality. Two- and three-dimensional mixed models were used in the structural analysis solution. The structural stress analysis and experimental results with a strain gage were 94.48% compatible in this study. It was determined using nCode DesignLife software that fatigue damage did not occur in the system using the finite element analysis (FEA) and experimental data. The SSCM design adopted a multi-objective genetic algorithm (MOGA) methodology for optimization with ANSYS. With the optimization solved from 422 iterations, a maximum stress value of 57.65 MPa was determined, and a 97.72 kg material was saved compared to the prototype. This study provides a useful methodology for experimental and advanced CAE techniques, especially for further study on complex stress, strain, and fatigue analysis of new systematic designs desired to have an optimum weight to strength ratio.

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Section: Resultsmentioning

confidence: 99%

Strength-based design of a sunflower stalk cutter machine design using finite element analysis and experimental validation

İrsel

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Maheri [14] uses an automated wind turbine blade modeler within an optimization process in order to minimize the mass, the maximum von Mises stress, and the blade tip deflection for an adaptive NREL 5 MW blade using NSGA-II and generate files required by ANSYS for high fidelity analysis. e automated wind turbine blade modeler can treat any parameter required to define the size, topology, structure, and material of a blade as a design variable and automatically change them within an optimization process.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design and Aerodynamic Performance Prediction of a Horizontal Axis Small-Scale Wind Turbine

Yin

Xie

Yao

2022

Mathematical Problems in Engineering

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The improved aerodynamic design of a horizontal axis small-scale wind turbine blade is crucial to increasing the efficiency and annual energy production of the turbine. One of the vital stages in aerodynamic design is the selection of the airfoil. Using the existing airfoils for a blade design which results in higher turbine characteristics is tedious. Consequently, this paper provides an optimal design strategy for a horizontal axis small-scale wind turbine blade through the multiobjective optimization of the airfoil using the Nondominated Sorting Genetic Algorithm II (NSGA-II). The latter outperforms the other commonly used genetic algorithms (GAs), as well as the Computational Fluid Dynamics (CFD) investigation of the different airfoil types and the wind turbine rotors on the steady or unsteady state aerodynamic performance. An NACA4412 airfoil with higher aerodynamic efficiency is considered as a baseline for the optimization in order to increase the lift coefficient and lift to drag ratio while avoiding excessive variations in the maximum relative thickness and area. The optimized airfoil (NACA4412-OPT) is used as the cross-sectional profile in the design procedure for a novel 1.15 m diameter three-bladed wind turbine rotor at a wind speed of 11.5 m/s, tip speed ratio of 4.65, and pitch angle of 0.2° by the Wilson design method. The two-dimensional analysis demonstrates that the optimized airfoil outperforms the other airfoils yielding the highest lift coefficient and lift to drag ratio, as well as a larger pitch range. The three-dimensional analysis shows that the time-averaged power coefficient value (0.33) of the new wind turbine is almost 26% higher and more stable than that of the original wind turbine while avoiding a high increase of the axial thrust.

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A Preliminary Evaluation on the Performance of Diffuser-Augmented Vertical Axis Wind Turbines

Unser

Vasel-Be-Hagh

2020

Springer Proceedings in Energy

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Multiobjective optimisation and integrated design of wind turbine blades using WTBM-ANSYS for high fidelity structural analysis

Cited by 10 publications

References 47 publications

Strength-based design of a sunflower stalk cutter machine design using finite element analysis and experimental validation

Strength-based design of a sunflower stalk cutter machine design using finite element analysis and experimental validation

Optimal Design and Aerodynamic Performance Prediction of a Horizontal Axis Small-Scale Wind Turbine

A Preliminary Evaluation on the Performance of Diffuser-Augmented Vertical Axis Wind Turbines

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