Free Vibration Analysis of Al 2024 Wind Turbine Blade Designed for Uttarakhand Region based on FEA

Kumar, Ashwani; Dwivedi, Arpit; Paliwal, Vipul; Patil, Pravin P.

doi:10.1016/j.protcy.2014.08.044

Cited by 32 publications

(13 citation statements)

References 2 publications

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“…At the same time when we seeing the strength and weight turbine blades rigidity play an important role to obtain the cost and saving from the fatigue failure. In overall, it's needed to strong and light materials in order to reduce the total weight of the system of wind turbine [1].…”

Section: Introductionmentioning

confidence: 99%

Steady-state and vibration analysis of a WindPACT 1.5-MW turbine blade

Abdzaid¹,

Ibraheem²,

Sabri³

2019

FME Transactions

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The aim of this paper is to study the stresses and deformations of a wind turbine blade under the steady-state load condition in addition to investigating the vibration characteristics (natural frequencies and mode shapes). The selected wind turbine blade is WindPACT 1.5-MW with upwind horizontal axis that has three blades of a length 34.125m and rotor diameter 70m. The wind turbine blade model was made using SOLIDWORKS software then exported to ANSYS Workbench. Finite element analysis has been used to achieve the numerical simulation of the wind blade. The steady-state behavior of the selected wind turbine blade was investigated deeply at the rated output power (maximum rotational velocity 20.5 RPM). In this research paper two different isotropic materials [structural steel (Blade A) and Al 2024 (Blade B)] were selected for different parts of the blade to spotlight the effect of materials type on the stresses, deformations and natural frequencies of wind turbine blade. The results presented the von-Mises stresses, total deformations and the ten first natural frequencies of WindPACT 1.5-MW wind blade. It was found that the wind blade response was improved when used the Al 2024 material instead of the structural steel.

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Section: Introductionmentioning

confidence: 99%

Steady-state and vibration analysis of a WindPACT 1.5-MW turbine blade

Abdzaid¹,

Ibraheem²,

Sabri³

2019

FME Transactions

View full text Add to dashboard Cite

show abstract

“…It is indicated (Tenguria et al, 2011) that the natural frequencies are lower for the case of a single web spar structure. Numerous works (Kumar et al, 2014; Pabut et al, 2012) have performed vibration analysis on HAWT rotor blade using FEM method by ANSYS software, and validated the extracted natural frequencies with experimental results using fast Fourier transform (FFT) analyzer. Cui et al (2010) considered the wind turbine blade as a composite laminate plate, performed modal analysis on the blade using ANSYS software, and calculated the fundamental natural frequencies of the blade.…”

Section: Introductionmentioning

confidence: 99%

Investigation of stiffness of small wind turbine blade based on vibration analysis technique

Chandgude

Gadhave

Taware³

et al. 2019

Wind Engineering

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In this article, three small wind turbine blades of different materials were manufactured. Finite element analysis was carried out using finite element software ANSYS 14.5 on modeled blades of National Advisory Committee for Aeronautics 4412 airfoil profile. From finite element analysis, first, two flap-wise natural frequencies and mode shapes of three different blades are obtained. Experimental vibration analysis of manufactured blades was carried out using fast Fourier transform analyzer to find the first two flap-wise natural frequencies. Finally, the results obtained from the finite element analysis and experimental test of three blades are compared. Based on vibration analysis, we found that the natural frequency of glass fiber reinforced plastic blade reinforced with aluminum sheet metal (small) strips increases compared with the remaining blades. An increase in the natural frequency indicates an increase in the stiffness of blade.

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“…A passive control method using a tuned mass damper to mitigate vibrations of the blades and tower of a wind turbine was introduced. Ashwani K. et al have done structural and Modal analysis of Al 2024 wind turbine blade designed based on FEA [8]. Their analysis results show that the maximum deformation occurs at tip and the stresses are very less for Al lightweight materials.…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic Performance and Vibration Analyses of Small Scale Horizontal Axis Wind Turbine with Various Number of Blades

Rahman¹,

Maroha²,

Shahat³

et al. 2018

JPEE

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The need to generate power from renewable sources to reduce demand for fossil fuels and the damage of their resulting carbon dioxide emissions is now well understood. Wind is among the most popular and fastest growing sources of alternative energy in the world. It is an inexhaustible, indigenous resource, pollution-free, and available almost any time of the day, especially in coastal regions. As a sustainable energy resource, electrical power generation from the wind is increasingly important in national and international energy policy in response to climate change. Experts predict that, with proper development, wind energy can meet up to 20% of US needs. Horizontal Axis Wind Turbines (HAWTs) are the most popular because of their higher efficiency. The aerodynamic characteristics and vibration of small scale HAWT with various numbers of blade designs have been investigated in this numerical study in order to improve its performance. SolidWorks was used for designing Computer Aided Design (CAD) models, and ANSYS software was used to study the dynamic flow around the turbine. Two, three, and five bladed HAWTs of 87 cm rotor diameter were designed. A HAWT tower of 100 cm long and 6 cm diameter was considered during this study while a shaft of 10.02 cm diameter was chosen. A good choice of airfoils and angle of attack is a key in the designing of a blade of rough surface and maintaining the maximum lift to drag ratio. The S818, S825 and S826 airfoils were used from the root to the tip and 4˚ critical angle of attack was considered. In this paper, a more appropriate numerical models and an improved method have been adopted in comparable with other models and methods in the literature. The wind flow around the whole wind turbine and static behavior of the HAWT rotor was solved using Moving Reference Frame (MRF) solver. The HAWT How to cite this paper: Rahman76 Journal of Power and Energy Engineering M. Rahman et al.rotor results were used to initialize the Sliding Mesh Models (SMM) solver and study the dynamic behavior of HAWT rotor. The pressure and velocity contours on different blades surfaces were analyzed and presented in this work. The pressure and velocity contours around the entire turbine models were also analyzed. The power coefficient was calculated using the Tip Speed Ratio (TSR) and the moment coefficient and the results were compared to the theoretical and other research. The results show that the increase of number of blades from two to three increases the efficiency; however, the power coefficient remains relatively the same or sometimes decreases for five bladed turbine models. HAWT rotors and shaft vibrations were analyzed for two different materials using an applied pressure load imported from ANSYS fluent environment. It has proven that a good choice of material is crucial during the design process.

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Free Vibration Analysis of Al 2024 Wind Turbine Blade Designed for Uttarakhand Region based on FEA

Cited by 32 publications

References 2 publications

Steady-state and vibration analysis of a WindPACT 1.5-MW turbine blade

Steady-state and vibration analysis of a WindPACT 1.5-MW turbine blade

Investigation of stiffness of small wind turbine blade based on vibration analysis technique

Aerodynamic Performance and Vibration Analyses of Small Scale Horizontal Axis Wind Turbine with Various Number of Blades

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