9 Completion of interplanetary round-trip cruise by solar electric propulsion combined with continuous-thrust orbit control technique 10 Precise rendezvous to small body with highly uncertain ephemeris using radiometric-optical hybrid navigation technology [19] 2.4.2 Scientific achievements Ryugu has been ...
A spacecraft and its launch vehicle are projected upward by the unbalanced pressure inside the rocket engine. There is high pressure on the closed front end of the rocket’s thrust chamber but much lower pressure on the open back end, where the exhaust gases flow out the chamber’s nozzle....
Space Launch System Thrust Vector Servoelastic (TVSE) ResonanceJeb S. OrrSAE/IEEE Aerospace Control and Guidance Systems Committee (ACGSC) Meeting
to control the thrust vector for space engines by addressing the simultaneous challenges of high-power density, miniaturization, reliability, and tolerance within the technical constraints of the aerospace environment. The approach is to create a standardized design for a product family of high-power ...
If the tug pushes its cargo,it will have a massive push plate on its bow, with a core of structural members to transmit the thrust of its engines to the push plate. If the tug pulls its cargo, it will have cables and winches on its stern, and the engines will be vectored to fire...
Upgrades derived from the flight test will debut on the next Starship and Super Heavy vehicles to launch from Starbase on Flight 3. SpaceX is also implementing planned performance upgrades, including the debut of a new electronic Thrust Vector Control system for Starship’s upper stage Raptor engi...
- 《Journal of the Institute of Electrical Installation Engineers of Japan》 被引量: 6发表: 2003年 High Performance Adjustable-Speed Induction Motor Drive System using Sensorless Vector Control-based PWM Inverter with Auto-Tuning Machine-Operated Paramet... This paper describes a feasible development ...
A kind of robust control of electromechanical actuator (EMA) system for thrust vector control in a spacecraft was investigated. In the flight of a spacecraft, the EMA system must overcome the influence of load disturbance and working point alteration to improve the robust control performances. Add...
Space storable, thrust-vectorable rocket motor nozzle and related methodsA thrust-vectoring rocket motor nozzle includes a forward assembly having a forward shell with a flange configured for connection to a motor and a throat portion opposite the flange. A ball joint sleeve may be disposed ...
He suddenly realized that he would have to use first-order power again, to give his ship something like the proper orbital velocity; but even he was able to understand the proper magnitude and direction of this new vector; the only unjustified assumption he had to make was that the suns ...