Advanced Launch System (ALS): Electrical Actuation and Power Systems Improve Operability and Cost Picture.

摘要

To obtain the Advanced Launch System (ALS) primary goals of reduced costs ($300/lb earth to LEO) and improved operability, there must be significant reductions in the launch operations and servicing requirements relative to current vehicle designs and practices. One of the primary methods for achieving these goals is by using electrical actuation integrated with a single vehicle electrical power system and controls for all actuation and avionics requirements. This paper will give a brief status review of the ALS and its associated Advanced Development Program to demonstrate maturation of those technologies that will help meet the overall operability and cost goals. The electric power and actuation systems will be highlighted as a specific technology ready not only to meet the stringent ALS goals (cryogenic fuel valves and thrust vector controls with peak power demands to 75 hp), but also those of other launch vehicles, military and civilian aircraft, lunar/Martian vehicles and a multitude of commercial applications.