CCZM‐based fatigue analysis and reliability assessment for wind turbine blade adhesive joints considering parameter uncertainties

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-05-19 DOI:10.1002/qre.3564

Zheng Liu, Haodong Liu, Zhenjiang Shao, Jinlong Liang, Ruizhi Tang

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引用次数: 0

Abstract

Wind turbine blades are complex structures composed of multiple bonded components. The fatigue performance of these adhesive joints is crucial for ensuring operational safety over the blade's lifespan. Traditional structural fatigue analysis methods are inadequate for evaluating the fatigue properties of these joints due to the unique characteristics of adhesive materials. Variations in material and dimensional parameters, as well as fluctuating operational loads, further complicate the fatigue analysis of adhesive joints in wind turbine blades. To tackle this issue, this study introduces a fatigue analysis and reliability assessment method for the adhesive joints of wind turbine blades, employing the Cyclic Cohesive Zone Model (CCZM) and accounting for parameter uncertainties. Specifically, a novel methodology for fatigue analysis based on the CCZM is presented. The methodology is programmatically implemented to obtain a fatigue life dataset through multiple simulations, considering uncertainties in material parameters, adhesive dimensions, and loads. Subsequently, a fatigue reliability model is formulated to evaluate the fatigue reliability of adhesive joints in wind turbine blades under different parameter conditions, and the sensitivity of fatigue reliability to each parameter is investigated. The findings offer valuable insights for improving the safety and reliability of adhesive structures in wind turbine blades.

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考虑参数不确定性的基于 CCZM 的风力涡轮机叶片粘接接头疲劳分析和可靠性评估

风力涡轮机叶片是由多个粘接部件组成的复杂结构。这些粘合接头的疲劳性能对于确保叶片在整个使用寿命期间的运行安全至关重要。由于粘合材料的独特特性，传统的结构疲劳分析方法不足以评估这些接头的疲劳性能。材料和尺寸参数的变化以及运行载荷的波动，使风力涡轮机叶片粘合接头的疲劳分析变得更加复杂。为解决这一问题，本研究采用循环粘合区模型 (CCZM)，并考虑到参数的不确定性，介绍了风力涡轮机叶片粘合接头的疲劳分析和可靠性评估方法。具体而言，本文介绍了一种基于 CCZM 的新型疲劳分析方法。考虑到材料参数、粘合剂尺寸和载荷的不确定性，该方法通过程序实现，通过多次模拟获得疲劳寿命数据集。随后，建立了一个疲劳可靠性模型，用于评估不同参数条件下风力涡轮机叶片中粘合接头的疲劳可靠性，并研究了疲劳可靠性对各参数的敏感性。研究结果为提高风力涡轮机叶片中粘接结构的安全性和可靠性提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.