Flight control design using non-linear inverse dynamics

Stephen H. Lane, Robert F. Stengel

Research output: Contribution to journalArticle

366 Scopus citations

Abstract

Aircraft in extreme flight conditions can encounter severe non-linear effects generated from high angles of attack and high angular rates. Flight control systems based upon non-linear inverse dynamics offer the potential for providing improved levels of safety and performance in these flight conditions over the competing designs developed using linearizing assumptions. Inverse dynamics are generated for specific command variable sets of a 12-state non-linear aircraft model to develop a control system which is valid over the entire flight envelope. Detailed descriptions of the inertial dynamic and aerodynamic models are given, and it is shown how the command variable sets are altered as a function of the system state to add stall prevention features to the system. Simulation results are presented for various mission objectives over a range of flight conditions to confirm the effectiveness of the design.

Original languageEnglish (US)
Pages (from-to)471-483
Number of pages13
JournalAutomatica
Volume24
Issue number4
DOIs
StatePublished - Jul 1988

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Keywords

  • Non-linear systems
  • aerospace control
  • control system design
  • decoupling
  • inverse systems

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