| Popis: |
Controlled, guided munitions can reduce dispersion in the shot, while providing the capability of engaging both stationary and maneuvering targets. The Netherlands Organisation for Applied Scientific Research has developed a fin-less control technology called Stagnation Pressure Reaction Control (SPRC) that takes stagnation pressure air and directs it sideways to control non-spinning projectiles. In a previous study, this technology was demonstrated at Mach 2 wind-tunnel conditions to achieve up to 1.5° controllable angle of incidence for a non-spinning, aerodynamically unstable projectile-like test object. In an operational scenario, the decelerating projectile will experience a decline in control force while the simultaneous forward shift of the center of pressure increases the need for control force. Furthermore, angles of incidence exceeding 1.5° will be experienced under realistic flight conditions, especially against maneuvering targets. This work addresses these challenges and presents an operational feasibility study for a practical application of SPRC in a non-spinning mid-caliber gun-launched projectile, using experiment data on control latency and force of the earlier study. It illustrates the combined effect of the control- and stability dynamics and underlines the potential of an SPRC projectile as a precision-operation ammunition. This research revealed that SPRC technology can stabilize and control the hypothesized projectile in a direct fire scenario against stationary and maneuvering targets. |
