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Fast Evaluation of Demagnetizing Field in Three Dimensional Micromagnetics using Multipole Approximation
(2000)
Computational micromagnetics in three dimensions is of increasing interest with the development of magnetostrictive sensors andactuators. In solving the Landau-Lifshitz-Gilbert (LLG) equation, the governing equation of ...
Modeling and Model Reduction for Control and Optimization of Epitaxial Growth in a Commercial Rapid Thermal Chemical Vapor Deposition Reactor
(1998)
In December 1996, a project was initiated at the Institute for Systems Research (ISR), under an agreement between Northrop GrummanElectronic Sensors and Systems Division (ESSD) and the ISR, to investigatethe epitaxial ...
Gyroscopic Control and Stabilization
(1991)
In this paper, we consider the geometry of gyroscopic systems with symmetry, starting from an intrinsic Lagrangian viewpoint. We note that natural mechanical systems with exogenous forces can be transformed into gyroscopic ...
Language, Behaviors, Hybrid Architectures and Motion Control
(1997)
In this paper we put forward a framework that integrates features of reactive planning models with modern control-theory-based approaches to motion control of robots. We introduce a motion description language, MDLe, that ...
High-Order Averaging on Lie Groups and Control of an Autonomous Underwater Vehicle
(1993)
In this paper we extend our earlier results on the use of periodic forcing and averaging to solve the constructive controllability problem for drift-free left-invariant systems on Lie groups with fewer controls than state ...
Computing Balanced Realizations for Nonlinear Systems
(2000)
This paper addresses the problem of computability pertaining to the Scherpen(1994) theory and procedure for balancing of nonlinear systems. In contrastto Moore's (1981) balancing method for linear systems, the Scherpen ...
Motion Control of Drift-Free, Left-Invariant Systems on Lie Groups
(1994)
In this paper we address the constructive controllability problem for drift free, left-invariant systems on finite-dimensional Lie groups with fewer controls than state dimension. We consider small (e) amplitude, low-frequency, ...
Convergence Analysis and Analog Circuit Applications for a Class of Networks of Nonlinear Coupled Oscillators
(1996)
The physical motivation and rigorous proof of convergence for a particular network of nonlinear coupled oscillators are reviewed. Next, the network and convergence proof are generalized in several ways, to make the network ...
Dissipation Induced Instabilities
(1992)
The main goal of this paper is to prove that if the energy- momentum (or energy-Casimir) method predicts formal instability of a relative equilibrium in a Hamiltonian system with symmetry, then with the addition of ...
Modeling of Impact on a Flexible Beam
(1993)
We consider the problem of modeling dynamical effects of impact of an elastic body on a flexible beam. We derive a nonlinear integral equation by using the Hertz law of impact in conjunction with the beam equation. This ...