بررسی مکانیسم سوختن یکنواخت و کاهشی در پیشرانه های جامد دوپایه(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 ...

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 نرم کننده های پرانرژی در پیشرانه های جامد (علمی-ترویجی)

In modern energetic propellant formulations, conventional plasticizers are being gradually replaced by energetic plasticizers having nitro, nitroamino, azido and other energetic groups. Energetic Plasticizers used to improve processing, mechanical properties and index of energy. Designer of propellant for decrease migration and improve safety factors in propellant’s formulation should to notice...

بررسی عوامل مؤثر در انتخاب پایدارکننده برای پیشرانه های جامد دو پایه(علمی-ترویجی)

پیشرانه های ژل(علمی-ترویجی)

کاربرد‌های روش فرا صوت در ارزیابی موتور های پیشرانه جامد(علمی-ترویجی)

Ultrasonic technique, is one of the best nondestructive techniques for solid propellants motors evaluation. In this article ultrasonic technique use, has been reported for measuring solid propellant burning rate at different pressure with just one experiment and at the moment, for especial motors. The use of swept frequency method in a proper confine frequency and interrupted frequency method h...