2019-01-012024-05-13https://scholars.lib.ntu.edu.tw/handle/123456789/654493摘要：本計畫擬進行連串的實驗及有限元素模擬，針對風力發電機葉片翼型尾端結構膠黏結區域進行結構改良分析。由於製造風機葉片具耗時及高成本問題，為簡化實際情況，將利用簡易剪切試片來比擬葉片翼型尾端之黏結情形。複合材料非平表面的製作方式，一般多以熱印壓並在上層擺放幾何模型來印壓出幾何表面，目前尚無研究使用無模具真空樹脂灌注技術來直接製作非平表面。考量真空樹脂灌注技術是船業及離岸風機葉片產業普遍使用之製程技術之一，因此本研究計畫擬藉由改造傳統真空灌注製程的方式，秉持著：(1)製程簡單容易技轉到產業界、(2)不輕易增加製作成本、(3)有效增加複合材料接合處的承載能力及使用年限，等的理念，在複合材料試片上製作幾何表面，針對：(1)加強材使用種類及材料特性、(2) 加強材幾何外型及尺寸、(3) 加強材分佈特性如數量及排列方式、以及溫度影響等，製作剪切試體進行實驗測試來觀察接合強度差異，並建立數值分析預測能力。最後綜合實驗及模擬結果進行詳細討論，檢討實驗因素造成之誤差，提出如何設計更優良之試片。本計畫期望將所研發的新方法與風機葉片製程結合，有機會提供未來國內產業界製造風機葉片時使用，以提高葉片翼型尾端之抗剪強度，進而增加使用安全性及年限。<br> Abstract: The PI proposes to study methods for improvement on load carrying capability of wind turbine composite blade joints resorting to a series of experiments and finite element simulations. Because using actual-size wind turbine blades for investigation may be time consuming and costly, simplified single lap specimens will be made to represent bonding situation. Seemann Composite Resin Infusion Molding Process (SCRIMP) method is often used for composite panels fabrication. Non-flat interface has been recently studied using, for instance, hot press molding. Directly using the SCRIMP method adding reinforcements for non-flat interfaces of bonding joints is still new. The methods developed shall: (1) be simple and easily transferred to industry, (2) be inexpensive and cost-efficient, and (3) be effective to increase load-carrying capability and lifespan of the composite joints. The study focuses on the following aspects for non-flat, or wrinkled, interface investigation: (1) classification and characteristics of reinforcement materials, (2) geometry and dimension of the reinforcements, and (3) distribution and arrangement of the reinforcements, and effect of temperature. The result of simulations and experiments would then be compared and discussed. Discrepancies will be further investigated for better solutions. In short, the study aims to integrate the proposed method with local manufacture of wind turbine blades. The improvement paves the way to better shear load-carrying capability of the joints and, hence, enhances wind turbine operation safety and lifespan.風機葉片SCRIMP製程簡易剪切試片非平表面剪切強度Wind turbine bladeSCRIMPSimple single lapWrinkled interfaceShear strength