Fault Tolerant Control of Satellite Orbital Maneuvering Based on Virtual Actuator

Masoud Dehnad; Morteza Farhid; Samira Mazhari Anvar

Volume 3, Issue 2 , February 2024, , Pages 115-125


  In this article, a fault tolerant control based on a virtual actuator is used for the maneuvering of low earth orbit satellites that are subject to the loss of the effectiveness and additive actuator faults as well as natural disturbances such as atmospheric drag, earth's gravity, solar radiation and ...  Read More

Investigating propellant flow in the converging-diverging nozzle with atmospheric outlet conditions by means of numerical simulation and validating the results with experimental tests

adel Pourtaghi Marzrood; Arezoo Esmaeili; adel Pourtaghi marzrood; Moharram Shameli

Volume 3, Issue 1 , August 2023, , Pages 87-96


  Backflow is a phenomenon that occurs due to the increase of upstream pressure compared to downstream pressure. In converging-diverging nozzles, by increasing the outlet pressure compared to the design pressure, the phenomenon of backflow is observed in the divergent part, which causes a decrease in the ...  Read More