{"product_id":"a-comparative-study-of-static-and-fatigue-behaviors-for-various-composite-orthotropic-properties-for-a-wind-turbine-using-a-coupled-fem-bem-method-von-adam-chehouri","title":"A Comparative Study of Static and Fatigue Behaviors for Various Composite Orthotropic Properties for a Wind Turbine Using a Coupled FEM-BEM Method","description":"\u003cp\u003eMaster's Thesis from the year 2013 in the subject Engineering - Mechanical Engineering, grade: 4.06\/4.5 GPa, , language: English, abstract: In the wind industry, the current trend is towards building larger and larger\u003c\/p\u003e\u003cp\u003eturbines. This presents additional structural challenges and requires blade materials that\u003c\/p\u003e\u003cp\u003eare both lighter and stiffer than the ones presently used. This work is aimed to aid the\u003c\/p\u003e\u003cp\u003ework of designing new wind turbine blades by providing a comparative study of different\u003c\/p\u003e\u003cp\u003ecomposite materials.\u003c\/p\u003e\u003cp\u003eA coupled Finite-Element-Method (FEM) - Blade Element Momentum (BEM) code was\u003c\/p\u003e\u003cp\u003eused to simulate the aerodynamic forces subjected on the blade. The developed BEM\u003c\/p\u003e\u003cp\u003ecode was written using LabView allowing an iterative numerical approach solver taking\u003c\/p\u003e\u003cp\u003einto the consideration the unsteady aerodynamic effects and off ¿design performance\u003c\/p\u003e\u003cp\u003eissues such as Tip Loss, Hub Loss and Turbulent Wake State therefore developing a more\u003c\/p\u003e\u003cp\u003erational aerodynamic model. For this thesis, the finite element study was conducted on\u003c\/p\u003e\u003cp\u003ethe Static Structural Workbench of ANSYS, as for the geometry of the blade it was\u003c\/p\u003e\u003cp\u003eimported from a previous study prepared by Cornell University. Confirmation of the\u003c\/p\u003e\u003cp\u003eperformance analysis of the chosen wind turbine blade are presented and discussed blade\u003c\/p\u003e\u003cp\u003eincluding the generated power, tip deflection, thrust and tangential force for a steady flow\u003c\/p\u003e\u003cp\u003eof 8m\/s.\u003c\/p\u003e\u003cp\u003eThe elastic and ultimate strength properties were provided by Hallal et al. The Tsai-\u003c\/p\u003e\u003cp\u003eHill and Hoffman failure criterions were both conducted to the resulting stresses and\u003c\/p\u003e\u003cp\u003eshears for each blade composite material structure to determine the presence of static\u003c\/p\u003e\u003cp\u003erupture. A progressive fatigue damage model was conducted to simulate the fatigue\u003c\/p\u003e\u003cp\u003ebehavior of laminated composite materials, an algorithm developed by Shokrieh.\u003c\/p\u003e\u003cp\u003eIt is concluded that with respect to a material blade design cycle, the coupling between a\u003c\/p\u003e\u003cp\u003efinite element package and blade element and momentum code under steady and static\u003c\/p\u003e\u003cp\u003econditions can be useful. Especially when an integration between this coupled approach\u003c\/p\u003e\u003cp\u003eand a dynamic simulation tool could be established, a more advanced flexible blade\u003c\/p\u003e\u003cp\u003edesign can be then analyzed for a novel generation of more flexible wind turbine blades.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783656572473\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9783656572473","offer_id":39447026204765,"sku":"9783656572473","price":44.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/c4e60e6a-29a7-49be-818d-f33c2f666d5a.jpg?v=1781324648","url":"https:\/\/shop.autorenwelt.de\/products\/a-comparative-study-of-static-and-fatigue-behaviors-for-various-composite-orthotropic-properties-for-a-wind-turbine-using-a-coupled-fem-bem-method-von-adam-chehouri","provider":"Autorenwelt Shop","version":"1.0","type":"link"}