Abstract Burning surface calculation is an important item in solid rocket engine design. In order to accurately calculate the parameters such as burning change law combustion chamber, level set based method used for calculation, firstly, complex divided into a uniform grid by voxelization; then distance transformation signed function, and finally information of contour obtained generate curve. ...

A new method for determining the burning rate of a solid propellant, called Impulse Method, is proposed in this paper. It based on proportional relationship between impulse generated and mass burned propellant. The pressure–time thrust–time curves are obtained from tubular propellant grain chamber, whose inner surface serves as initial surface. Consequently, that was off at different pressures ...

As a special polymeric composite and military-strategic material, solid propellant has attracted extensive attention efforts to improve its performances. Graphene been regarded as an ideal material enhance the performances of propellants, because excellent physical chemical properties, such ultra-strong strength, large specific surface area, remarkable thermal conductivity, phenomenal electrica...

Large explosive class 1.3 solid .propellant rocket motors utilizing polybutadiene binder, aluminum fuel, and ammonium perchlorate oxidizer are typically considered explosively vlsafell. That is, the required stimulus is so large that motor detonation is extremely unlikely, even when donored by a sizeable high explosive charge. Two large ground cratering events have occurred during recent years ...

Flexible inhibitors are generally used in solid rocket motors (SRMs) as a means to control the burning of propellant. Vortices generated by the flow of propellant around the flexible inhibitors have been identified as a driving source of instabilities that can lead to thrust oscillations in launch vehicles. Potential coupling between the SRM thrust oscillations and structural vibration modes is...

Abstract Conducting thermal safety research on solid rocket motors is a method to effectively improve the battlefield survivability of rockets and missile weapons. Based AP-based cock-off reaction mechanism, 2-D unsteady axial symmetrical model motor developed. The software Fluent used calculate numerical value under stimulation conditions different heating rates. results indicate that rate coo...