SIMPLIFIED ANALYSIS OF FLEXIBLE BOOSTER FLIGHT CONTROL SYSTEMS

Abstract

Structural flexibility effects exert a considerable influence upon the stability of booster orientation flight control systems. This paper presents a relatively simple method of using root locus techniques to elop the factored open loop relating function for the system including these flexibility effects. The analysis procedure is very useful in the design of these control systems since the solution to the stability problems encountered becomes evident from the form of the factored open loop relating function. The particular manner in which the development takes place enables one to under stand the effects of the major design and physical parameters upon the form of the open loop relating function, and in so doing, bridges the gap between these parameters and their effect on the performance of the closed loop system. Armed with the basic understanding which the analysis procedure provides, it is possible to interpret the performance of a parameter adjusting adaptive control system or to formulate rapidly the preliminary design of a fixed parameter flight control system.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1962
Accession Number
AD0403433

Entities

People

  • Allen Kezer
  • Lee G. Hofmann

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Actuators
  • Airframes
  • Angular Motion
  • Closed Loop Systems
  • Control Systems
  • Coordinate Systems
  • Dynamic Loads
  • Equations Of Motion
  • Feedback
  • Flight Control Systems
  • Frequency
  • Frequency Response
  • Hydraulic Actuators
  • Measurement
  • Measuring Instruments
  • Resonant Frequency
  • Transfer Functions

Readers

  • Aerospace Test and Evaluation
  • Control Systems Engineering.
  • Systems Analysis and Design