عایق پیشرانه‌های جامد دوپایه(علمی-ترویجی)

الاستومر اتیلن پروپیلن دی ان مونومر (epdm)به عنوان عایق موتور راکت پیشرانه های جامد (علمی-ترویجی)

In order to preserve structure and also achieve the desired thrust rocket motor, engine Case temperature should be prevented increase excess.This operation the can be done by Insulation. EPDM rubber because of advantages such as low specific weight, improve aging properties, as long as thermal insulation for solid propellant motors case bond Introduced and its properties are investigated in thi...

پیشرانه جامد مرکب پرانرژیNEPE(علمی-ترویجی)

Nitrate ester plasticized polyether (NEPE) is a new generation of composite solid propellants which its high energy content in comparing with conventional formulations, has attracted many researchers in the defense departments, all over the world. First of all an introduction and history and importance of NEPE propellants will be discussed and formulation and combination of propellants componen...

بررسی علل ناپایداری احتراق در موتورهای سوخت جامد(علمی-ترویجی)

آزمون های غیرمخرب در پیشرانه های جامد (علمی-ترویجی)

Non-destructive testing methods are used to detecting defects in materials and evaluation of materials properties without causing changes to their usable properties. They are applied in industry to provide the assurance of high quality for semi-manufactured products, final products, devices and materials. Except of many civilian applications they are widely used in rocket and aviation industry ...

بهینه سازی سوخت جامد در یک موشک تاکتیکی(علمی-ترویجی)

بررسی پایداری حرارتی کامپوزیت و‌ نانوکامپوزیت پلی‌یورتان- سیلیکا با رویکرد عایق راکت پیشرانه جامد

One way to thermal stability and ablation improving of polyurethane elastomers with approach of solid propellant rocket insulation, is use of fillers such as silica particles with property of high ablation. In this study, it was paid to prepare polyurethane-silica composites (16,25 and 38% by weight) and polyurethane-silica nanocomposites (10, 16 and 25% by weight) and then interaction, morphol...