Accession Number : ADP000963

Title :   Modern Control Techniques Applicable to the Space Shuttle Main Engine,

Corporate Author : ROCKWELL INTERNATIONAL CANOGA PARK CA ROCKETDYNE DIV

Personal Author(s) : Evatt,T. C.

Report Date : JAN 1983

Pagination or Media Count : 43

Abstract : This paper is divided into four sections. The first section introduces the SSME (Space Shuttle Main Engine) rocket engine and the techniques used to simulate the dynamics of the SSME including linear model derivation. A discussion of actuator dynamics and their effect on closed-loop response is also presented. In the next section, the LQG (Linear Quadratic Gaussian) technique is briefly discussed with a more detailed description of the Linear Quadratic Regulator. A procedure is discussed for choosing the LQR weighting matrices. Conclusions and recommendations follow.

Descriptors :   *Liquid propellant rocket engines, *Rocket propulsion, *control systems, *Space shuttles, Thrust, Turbopumps, Linear systems, Hybrid rocket engines, Hybrid simulation, Differential equations, Optimization

Distribution Statement : APPROVED FOR PUBLIC RELEASE