پیشرانه های ژل(علمی-ترویجی)

پایداری بالستیکی پیشرانه های تفنگی (علمی-ترویجی)

Generally, storage long time gun propellants cause negative ballistic effects. thus, retain ballistic stability of gun propellants during storage is one of the requirement new gun propellants. in this paper, deals with the ballistic stability conventional and new gun propellants. Therewithal, effective factors on ballistic stability and changing ballistic parameters (muzzle velocity & peak pres...

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 ...

روش‌های کاهش حساسیت دمایی در پیشرانه های تفنگی (علمی-ترویجی)

مروری بر روند توسعه پیشرانه های تفنگی (علمی-ترویجی)

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...