A Study on Optimal Design of Filament Winding Composite Tower for 2 MW Class Horizontal Axis Wind Turbine Systems

Kong, Changduk; Lim, Sung-Jin; Park, Hyunbum

doi:10.1115/gt2013-94124

Cited by 9 publications

(3 citation statements)

References 8 publications

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“…There are three basic design features for steel structures: Tubular, lattice, or hybrid towers, with the latter combining a lattice structure at the lower part and a tubular structure at the upper part [17]. In addition, composite towers could be a competitive alternative due to the cost reduction that may be achieved [18]. Additionally, the system modes and frequencies depend on the type and condition of the foundation.…”

Section: Wind Turbine Tower Structuresmentioning

confidence: 99%

“…Thus, a sandwich lower part and a solid upper part could be proposed. Introducing a glass epoxy skin part, the manufacturing cost can be reduced by 25% compared to a steel tower [18]. Glass-fiber-reinforced epoxy resin was found to be 34% lighter than a steel tower, fulfilling ultimate and fatigue load requirements [37].…”

Section: Hybrid Towers 231 Composite Towersmentioning

confidence: 99%

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Recent Advances in Vibration Control Methods for Wind Turbine Towers

2021

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Wind power is a substantial resource to assist global efforts on the decarbonization of energy. The drive to increase capacity has led to ever-increasing blade tip heights and lightweight, slender towers. These structures are subject to a variety of environmental loads that give rise to vibrations with potentially catastrophic consequences, making the mitigation of the tower’s structural vibrations an important factor for low maintenance requirements and reduced damage risk. Recent advances in the most important vibration control methods for wind turbine towers are presented in this paper, exploring the impact of the installation environment harshness on the performance of state-of-the-art devices. An overview of the typical structural characteristics of a modern wind turbine tower is followed by a discussion of typical damages and their link to known collapse cases. Furthermore, the vibration properties of towers in harsh multi-hazard environments are presented and the typical design options are discussed. A comprehensive review of the most promising passive, active, and semi-active vibration control methods is conducted, focusing on recent advances around novel concepts and analyses of their performance under multiple environmental loads, including wind, waves, currents, and seismic excitations. The review highlights the benefits of installing structural systems in reducing the vibrational load of towers and therefore increasing their structural reliability and resilience to extreme events. It is also found that the stochastic nature of the typical tower loads remains a key issue for the design and the performance of the state-of-the-art vibration control methods.

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Section: Wind Turbine Tower Structuresmentioning

confidence: 99%

Section: Hybrid Towers 231 Composite Towersmentioning

confidence: 99%

Recent Advances in Vibration Control Methods for Wind Turbine Towers

2021

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“…The study [9] focuses on the design and utilization of sandwich composite panels made from glass and polyester for constructing wind power system towers with a capacity of 2 MW. The research includes load analysis, proposing coordinated solutions, optimal structural design, and structural analysis of the tower design calculation algorithm.…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies for the Creation of Composite Materials with Increased Static Mechanical Characteristics

Antypas,

Savostina

2024

Mater. Plast.

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The aim of the study was to experimentally verify the enhancement of certain mechanical properties of a composite material consisting of unsaturated polyester matrix reinforced with fiberglass, by incorporating specific proportions of sodium aluminosilicate (SAS) powders and talc as fillers for the fabrication of large wind turbine blades. Samples composed of these materials, with varying combinations of the added components, underwent testing for tensile and bending strength, and experiments were conducted to determine their modulus of elasticity. The findings indicate that the inclusion of SAS in the matrix material resulted in increased values of tensile strength and modulus of elasticity up to certain proportions. Solely adding talc to the matrix material led to a rise in bending strength. Increasing the talc percentage in the matrix material reinforced with 20% fiberglass resulted in decreased tensile strength and elastic modulus of the samples, while incorporating a blend of SAS and talc into the matrix material reinforced with 20% fiberglass significantly boosted the elastic modulus and tensile strength of the samples under tensile conditions.

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Three-Dimensional Analysis of Porosity in As-Manufactured Glass Fiber/Vinyl Ester Filament Winded Composites Using X-Ray Micro-Computed Tomography

Srivastava,

Agostino,

Stamopoulos

et al. 2023

Appl Compos Mater

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Filament winding is a technique to manufacture tubular composite structures and, therefore, is among the most appealing techniques for fabricating critical structures such as hollow tubes. Despite the recent advances, these structures are prone to a varying degree of porosity that may affect their mechanical performance. Therefore, the accurate detection and quantification of the manufacturing porosity is crucial. Micro-CT is most suitable for performing this activity at various scales. This work employs micro-CT for studying porosity inside an as-manufactured filament-winded composite structure. Void characteristics like volume, orientation, size, and relative volume fraction inside the hoop and helical layers are quantified inside a representative curved panel extracted from a glass fiber-vinyl ester tubular composite structure, which has not been studied in detail previously. It was observed that most voids are present in the matrix region. The voids are elliptical rod-like and spherical, with the latter present in the helical layers, which also host the majority of voids and the highest void volume fractions. The voids are highly aligned along the fiber orientation direction with higher misorientations for helical layers than the hoop layer. Large voids in base layers were created due to gaps formed during the winding process. Hence, the main goal of this study is to measure the voids' characteristics and the volumetric fraction during the stacking of filament wound hoop and helical layers during a generic filament winding pattern. The data can be further exploited as input for modeling filament winded composites in the presence of voids by researchers.

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A Study on Optimal Design of Filament Winding Composite Tower for 2 MW Class Horizontal Axis Wind Turbine Systems

Cited by 9 publications

References 8 publications

Recent Advances in Vibration Control Methods for Wind Turbine Towers

Recent Advances in Vibration Control Methods for Wind Turbine Towers

Experimental Studies for the Creation of Composite Materials with Increased Static Mechanical Characteristics

Three-Dimensional Analysis of Porosity in As-Manufactured Glass Fiber/Vinyl Ester Filament Winded Composites Using X-Ray Micro-Computed Tomography

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