ارزیابی اثر پارامترهای مختلف بر سرعت سوزش پیشرانه های جامد مرکب(علمی-ترویجی)

ارزیابی اثر پارامترهای مختلف بر سرعت سوزش پیشرانه‌های جامد مرکب(علمی-ترویجی)

Investigation shows that the some complex and expanded parameters are effective on the burning rate. In this paper we evaluate the effect of particles dispersion, size of AP particle, the size of Al particles, Fe2O3, viscosity, shape factor, the size of mixer and the mechanical parameters such as tensile and stress on the burning rate. These studies show that the decrease of AP particles, size ...

ارزیابی اثر پارامترهای مختلف بر روی پدیده کوهانی شدن در پیشرانه-های جامد مرکب

By comparing the empirical and predicted performance diagrams of the composite solid propellants, it appears that there is a discrepancy between these two graphs .This deviation has been attributed to spatial burning rate variation which is related to burning rate fluctuation or hump effect. The most important reasons for this spatial burning rate variation are casting process. In order to appr...

روشهای بهبود سرعت سوزش پیشرانه های جامد مولد گاز کیسه هوا

Airbag gas generator’s solid propellant, are set of gas-release systems within a short time, Which contains three main components of fuel, oxidizing agents and additives. This article examines the gas generator propellant types and their different functions and then the desired chemical and physical properties of different components and gas-producing propellant formulation may be checked...

افزایش سرعت سوزش پیشرانه با استفاده از صفحات فلزی کار گذاشته شده درون گرین پیشرانه (علمی-ترویجی)

The method of foil embedding is employed in solid propellant motors with end-burning configuration, thereby significantly improving the burning rate of the propellants. These foils provide such amplification by locally augmenting heat feedback from propellant combustion products to unburned solid material, with resultant increase in burning surface area. Burning rate would raise with the incr...

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 ...

ارزیابی اثر کاتالیزور سرعت سوزش از نوع ترشیو بوتیل فروسن بر پایداری سوخت جامد مرکب