Solid composite propellants often contain metal particles, such as aluminum and the internal flow field in a solid rocket motor is typical gas–solid two-phase field. In this study, to address problem of erosion particles on wall during working process an engine, particle model was established based interaction mechanism between wall. From perspective dynamics, moving analyzed. The force surface...

The feeding and weighing of oxidizer agents is the key process solid rocket motor propellant preparation, its accuracy directly affects burning performance motors. At present, existing multi-batch methods have problem low high time consumption agent. In this paper, an improved mass flow rate regulation method based on variable frequency control proposed to improve reduce consumption. nonlinear ...

We propose a conceptual study of prototype strained hydrocarbon molecules as high energy density additives for hybrid rocket fuels to boost the performance of these rockets without compromising safety and reliability. Use of these additives could extend the range of applications for which hybrid rockets become an attractive alternative to conventional solid or liquid fuel rockets. The objective...

The thrust produced by a hybrid rocket motor (HRM) can be controlled varying the oxidizer flow rate to combustion chamber. This feature is useful in shaping profiles and optimizing vehicle flight trajectory, but propellant throttling solid-fuel hybrids limited liquid component only, complicating control scheme potentially destabilizing motor. While ability remains subject of considerable intere...

The failure mechanism was determined to be tin whiskers emanating from the tin plating on the internal pins. The high conductivity, pure tin crystalline whiskers bridged the 10-mil spark gap to cause the test failures. The fusing current of the whiskers was in the range of the source current of the test equipment. This caused inconsistencies during problem identification and verification at the...