Novel Dynamics and Controls Analysis Methods for Nonlinear Structural Systems

Abstract

Significant progress is reported on analytical and computational methodology applicable to dynamics and control of flexible multibody structures. Especially significant are the following: (1) We have developed new analytical and numerical results pertaining to imposing constraints in multi-body dynamical modeling and numerical simulation. We have developed an extension of existing penalty methods for constrained multibody dynamics, including some significant convergence proofs. (2) We have developed a power principle which permits the efficient construction of stabilizing control laws for systems described by nonlinear systems of coupled ordinary and partial differential equations. (3) We have initiated a study of symbol manipulation methods to derive polynomial-type nonlinear feedback control laws for dynamical systems with polynomial nonlinearities. A general MACSYMA symbolic computer code has been developed and studies are under way on several test problems. (kr)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1990
Accession Number
ADA229164

Entities

People

  • A. J. Kurdila
  • J. L. Junkins
  • Z. H. Rahman

Organizations

  • Texas A&M University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Computational Fluid Dynamics
  • Computational Science
  • Computers
  • Differential Equations
  • Engineering
  • Equations Of Motion
  • Linear Systems
  • Mechanics
  • Navigation
  • Parallel Computing
  • Parallel Processing
  • Partial Differential Equations
  • Spacecraft
  • Topology
  • Trajectories
  • Vibration

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Calculus or Mathematical Analysis
  • Robotics and Automation.