Accession Number:

ADA229164

Title:

Novel Dynamics and Controls Analysis Methods for Nonlinear Structural Systems

Descriptive Note:

Interim rept. 1 Jul 1989-31 Jul 1990,

Corporate Author:

TEXAS A AND M RESEARCH FOUNDATION COLLEGE STATION

Report Date:

1990-08-30

Pagination or Media Count:

120.0

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

Subject Categories:

  • Operations Research
  • Structural Engineering and Building Technology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE