Optimization of Hybrid Rocket Engines at Politecnico di Torino began in the 1990s. A comprehensive review related research activities carried out last three decades is here presented. After a brief introduction that retraces driving motivations and most significant steps path, more relevant aspects analysis, modeling achieved results are illustrated. First, criteria for propulsion system prelim...

A post-processing tool for experimental data is developed to rebuild the instantaneous and local distributions of fuel port diameter regression rate throughout conduct during a firing test. The main objective use methodology be able, at given instant test, simulate hybrid rocket engine configuration validate related numerical modeling. based on coupling between mass flow obtained by ballistic r...

This paper presents a research work to develop a navigation technique for a class of nano-micro space rocket. Onboard MEMS inertial sensors are used in view of post-flight trajectory estimation. Combined with synchronized measurements of the combustion engine which is of hybrid type and uses N2O and PE, we show how the relative redundancy of the data can be used to calibrate a thrust model. Exp...

The successful launching of the new generation launch vehicle is great practical significance to development China Space, and cryogenic liquid engine commonly used in has a certain probability failures, which may affect success or failure rocket launching. In this paper, Bolza problem optimization algorithm based on Radau pseudo-spectral method proposed solve single first-stage flight phase by ...

Abstract Suborbital rockets and space launch vehicles experience high levels of vibration. They are caused by various factors, such as aerodynamic effects on the external surfaces engine combustion instability. The second factor is especially pronounced in hybrid rocket engines, main ILR-33 AMBER 2K rocket. In order to ensure correct operation all equipment payload board, vibration testing devi...

The successful design of a liquid rocket engine is strictly linked to the development efficient cooling systems, able dissipate huge thermal loads coming from combustion in thrust chamber. Generally, architectures are based on regenerative strategies, adopting fuels as coolants; and jackets, including several narrow axial channels allocated around chambers. Moreover, since cryogenic used, case ...