A Review of the Effects of Ice Accretion on the Structural Behavior of Wind Turbines

Alsabagh, Abdel Salam Y.; Tiu, William; Xu, Yigeng; Virk, Muhammad Shakeel

doi:10.1260/0309-524x.37.1.59

Cited by 24 publications

(12 citation statements)

References 36 publications

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“…A few prior studies have used experimental and numerical models to investigate the structural impacts of ice accretion on the aeroelastic behavior of blades [17,18]. A previous numerical investigation focused on examining the impact of increased blade mass due to ice accretion [19].…”

Section: Introductionmentioning

confidence: 99%

Isogeometric analysis of ice accretion on wind turbine blades

Johnson

Hsu

2020

Comput Mech

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For wind turbines operating in cold weather conditions, ice accretion is an established issue that remains an obstacle in effective turbine operation. While the aerodynamic performance of wind turbine blades with ice accretion has received considerable research attention, few studies have investigated the structural impact of blade ice accretion. This work proposes an adaptable projection-based method to superimpose complex ice configurations onto a baseline structure. The proposed approach provides an efficient methodology to include ice accretion in the high fidelity isogeometric shell analysis of a realistic wind turbine blade. Linear vibration and nonlinear deflection analyses of the blade are performed for various ice configurations to demonstrate the impact of different ice accretion distributions on structural performance. These analyses indicate decreases in the blade natural frequencies and deflection under icing conditions. Such ice-induced changes clearly reveal the need for structural design consideration for turbines operating under icing conditions.

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Section: Introductionmentioning

confidence: 99%

Isogeometric analysis of ice accretion on wind turbine blades

Johnson

Hsu

2020

Comput Mech

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“…The additional mass changes the aerodynamic configuration of the blades, and it can lead to the reduction of power . Moreover, the mass imbalance due to the ice coating on different blades results in increased fatigue of components . Under extreme icing conditions, there is a possibility of the complete loss of production.…”

Section: Introductionmentioning

confidence: 99%

Icing estimation on wind turbine blade by the interface temperature using distributed fiber optic sensors

Zhang

Zhou

2020

Struct Control Health Monit

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Summary Icing on the surface of wind turbine blades is one of the most critical problems for wind turbines installed at sites in cold climate. It can significantly affect the performance of the entire wind turbine. A number of deicing methods and techniques have been developed to address this problem. However, first of all, timely icing detection and estimation can provide the necessary information, such as the amount and location of icing, which are very useful for optimizing the deicing process. In this work, first, the thermodynamic processes during icing on the surface of wind turbine blades were presented to understand the characteristics of the varying temperature related to icing process. In the experimental section, a wind turbine blade model was tested in the low‐temperature laboratory. High‐performance distributed fiber optic sensors were attached to the surface of the wind turbine blade to measure the temperature change. This sensor can provide the temperature information as much as possible, which enables the identification of the initiation time of icing and the estimation of the amount of icing. As a result, the relationship between the amount of icing and the temperature change can be obtained. It indicates that the proposed estimation method is efficient and sensitive for ice monitoring of wind turbine blades. Finally, finite element analysis was implemented to explore the effects of airflow on the temperature curves.

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“…The formation of ice on various components of the wind turbine using composite materials such as carbon and glass fibers will modify their mechanical properties. These materials are the most commonly used because they are lightweight, due to the uneven shrinkage of their fiber/matrix components, will be subject to residual stress, which can induce premature micro‐cracks in the material, causing visible impact damage 14 …”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of ice accretion on an offshore composite wind turbine under critical loads

Lagdani¹,

Tarfaoui

Nachtane

et al. 2020

Int J Energy Res

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Summary In northern regions, wind turbines are affected by the formation of ice on the surface of their structures, which usually occurs on moving blades, resulting in a significant decrease in aerodynamic performance and then the output power tends to reduce. This research evaluates the mechanical behavior and damage of the proposed composite blade structure under icing conditions. A comparative evaluation was carried out considering three ice configurations and three blade positions. The results are then examined and analysed. During this study, the blade in service was subjected to three different critical loads. A numerical simulation is adopted using finite element method (FEM) with ABAQUS software to localize damage in the composite wind turbine blade. The method developed is based on the failure criteria of HASHIN to detect failure modes in large structures and to identify the most sensitive zones. Major damage appeared in the transition region and was the principal reason for the composite blade failure. Furthermore, greater strength and stiffness were found with Carbon (CC) fibers blade designs, whereas configuration 3 was found to be the best one, and the optimal blade position was when the ice structure was placed vertically.

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A Review of the Effects of Ice Accretion on the Structural Behavior of Wind Turbines

Cited by 24 publications

References 36 publications

Isogeometric analysis of ice accretion on wind turbine blades

Isogeometric analysis of ice accretion on wind turbine blades

Icing estimation on wind turbine blade by the interface temperature using distributed fiber optic sensors

Numerical investigation of ice accretion on an offshore composite wind turbine under critical loads

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