تحسين الخصائص الميكانيكية تجريبا ( اللابة والمرونة ) لشفرات العنفات الريحية التي يدخل في تركيبها الألياف الزجاجية

الموضوعات

علوم تطبيقية وتكنولوجية

روابط وملفات

التعريف والنوع

رقم الوثيقة

f53af86e-6707-42d4-9a6e-9499adf8bcb5

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1965108_1.pdf

بيانات النشر

ترجمة العنوان

Improvement of mechanical properties experimentally (rigidity and elasticity) to the blades of wind turbine which contain fiber glass in its composition

ألقاب المؤلفين

[{"name_ar":"حبيب محمد محمود","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"علي محمد علي","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"نوار شوكت ابراهيم","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

تحسين الخصائص الميكانيكية تجريبا ( اللابة والمرونة ) لشفرات العنفات الريحية التي يدخل في تركيبها الألياف الزجاجية

المحتوى والصفحات

عدد الصفحات

0

ترجمة الملخص

The composite materials basis polymer, are considered as substances that play an important role in most of the engineering and technological applications, the composite material used in manufacturing wind turbines' blades ,consists of matrix material like resin epoxy and polyester, and the reinforcing material which is one of the main components of the composite material, where it is added to the matrix material for the purpose of strengthening and thereby improve their specifications .In this research we studied the effect of addition the reinforcing materials (sodium aluminosilicate, Talc) to the unsaturated polyester (Unsaturated Polyester Resin)(UPR)first, and unsaturated polyester reinforced by fiberglass (20%) secondly, number of mechanical tests were done, they included (Tensile, Flexural Strength) , where these tests were done in materials strength laboratory in technical engineering college, Tartus. The effect of addition of reinforcing materials sodium aluminosilicate (SAS), Talc , and a mixture of sodium aluminosilicate and Talc (where the rate of the Talc has been fixed at 5% and the rate of the SAS has been changed from (5-20)%) to the unreinforced polyester with fiberglass was studied in the first step of the research, and the results showed that the best values were gotten at reinforcing ratio from mixture of (SAS/Talc:10/5)%, where the tensile strength value raised up from (26.6MPa) to (22MPa), and the elastic module value also raised up from (2330 MPa) to (2750.5 MPa) , and the flexural strength value also raised up from (0.057 GPa) to (0.0729 GPa).The effect of addition of reinforcing materials sodium aluminosilicate, Talc , and a mixture of sodium aluminosilicate and Talc (where the rate of the Talc has been fixed at 5% and the rate of the SAS has been changed from (5-15)%) to the reinforced polyester with fiberglass (20%) was studied in the second step of the research, and the results showed that the best values were gotten at reinforcing ratio from mixture of (SAS/Talc:5/5)%, where the tensile strength value raised up from (101.7 MPa) to (108.8 MPa), and the elastic module value also raised up from (5616 MPa) to (6367.9 MPa), and the flexural strength value raised up from (0.1203 GPa) to (0.1597 GPa).In order to know the importance of adding these ratios on the strength and rigidity of wind turbine blades, the two blades were designed using the program(SolidWorks),the first was made of polyester reinforced by fiberglass(20%), and the second was manufacture of polyester reinforced by fiberglass (20%) and a mixture of sodium silicate, aluminum and talc(SAS/Talc:5/5)%, and we selected profile (NACA 4112) for both blades, then we conducted simulation by exposing the two blades to the same forces 010that reached (200)N, where we could reduce the critical stresses at the root after the additions, from(34.914) M Pa to (29.690) MPa, which means that the amount of the reducing is(14.96%), and thus we note the importance add reinforcing materials in the reducing of the critical stresses at the root, and that means reducing the weight also, also we could reduce the displacements after adding reinforcing material s by (SAS/Talc:5/5)%, where displacements reduced at the tip of(403.6) mm to(302.8) mm, which means that the amount of the reducing is(24.97%),(improvement of rigidity and elasticity),and thus we note the importance of adding reinforcing materials in reducing displacements, thus reducing the collapses posed to wind turbine blades as much as possible.

كلمات الباحثين

fiberglass, sodium aluminosilicate, Talc, Wind turbines blades, الألياف الزجاجية, التالك, سيليكات الألمنيوم الصوديوم, شفرات العنفات الريحية

إشراف وإعداد

الإشراف

حبيب محمد محمود, علي محمد علي

الإعداد

نوار شوكت ابراهيم

الاقتباسات الببليوغرافية