AbstractThe low regression rate of Hybrid Rocket Engines (HREs) is one prominent
characteristic that is addressed in most abstracts concerning hybrid propulsion.
Over the years, researchers developed and investigated numerous ways to tackle
the low regression rate problem of HREs. This article is a collection and
assessment of these diverse methods and designs. It allows for a quick overview
of th... hiện toàn bộ
AbstractThis paper considers a feedback control law that achieves attitude
stabilization for Earth-pointing spacecraft using only magnetorquers as torque
actuators. The control law is proportional derivative (PD)-like with matrix
gains, and it guarantees asymptotic stability. The PD matrix gains are
determined through the numerical solution of a periodic linear quadric regulator
problem. A case st... hiện toàn bộ