Now showing items 31-40 of 85
Computational Micromagnetics for Magnetostrictive Actuators
Computational micromagnetics plays an important role in design and control of magnetostrictive actuators. A systematic approach to calculate magnetic dynamics and magnetostriction is presented. A finite difference method ...
Adaptive Wavefront Control using a Nonlinear Zernike Filter
A conventional Zernike filter measures wavefront phase by superimposing the aberrated input beam with a phase-shifted version of its zero-orderspectral component. The Fourier-domain phase-shifting is performed by afixed ...
The Second Synthetic Microstructures in Biological Research Conference.
A Simple Control Law for UAV Formation Flying
This paper presents a Lie group setting for the problem of control of formations, as a natural outcome of the analysis of a planar two-vehicle formation control law. <p>The vehicle trajectories are described using planar ...
Geometric Phases, and Optimal Reconfiguration for Multibody Systems
Relative Motion in a system of coupled rigid bodies can yield global reorientation (or phase shift.) We give a formula to compute such a phase shift and interpret the same in geometric terms. The theory of connections in ...
The Hannay-Berry Phase of the Vibrating Ring Gyroscop
In an analysis published in 1890 G.H. Bryan investigated the retrograde precession of the nodal points in a vibrating, rotating shell and wrote down a formula relating the rate of precession to the rate of rotation. This ...
Hamiltonian Dynamics of a Rigid Body in a Central Gravitational Field
This paper concerns the dynamics of a rigid body moving under the influence of a central gravitational field. Explicit account is taken of effects arising because of the finite extent of the body. The hamiltonian framework ...
The Dynamics of Coupled Planar Rigid Bodies.
This paper studies the dynamics of coupled planar rigid bodies, concentrating on the case of two bodies coupled with a hinge joint. The Hamiltonian structure is non-canonical and is obtained using the methods of reduction, ...
The Hamiltonian Structure of Nonlinear Elasticity: The Convective Representation of Solids, Rods, and Plates.
ABSTRACT NOT AVAILABLE.
Motion Control of Drift-Free, Left-Invariant Systems on Lie Groups, Part II: A General Constructive Control Algorithm
In this paper we present a general algorithm for constructing open-loop controls to solve the complete constructive controllability problem for drift-free invariant systems on Lie groups that satisfy the Lie algebra ...