Naval Postgraduate School
Control and Optimization Laboratories
Now showing items 1-10 of 58
Naval Postgraduate School - Cyber Summit
(Monterey, California. Naval Postgraduate School, 2009-10-29)
Tip-loaded Cantilever Beams
(1966-12)
The author is Professor of Mechanical Engineering at the U. S. Naval Postgraduate School, Monterey, California, and formerly Director of Engineering Sciences of the Service Bureau Corporation, a subsidiary of IBM. His Ph.D. ...
Formal Analysis of Elastically Supported Beam Columns
(1966)
A method is presented for the systematic analysis of elastically supported beam-columns or
tie-bars in which formal notational devices simplify the handling of complicated discontinuous lateral loads.
Various relationships ...
Behavior of Separation Constants for Finite Gyromagnetic Plasmas
(1965-11)
The type of the functions appearing in the expressions for electromagnetic fields in finite magnetoplasmas depends only on the properties of the medium manifested in separation constants. Theomega-betaplane of the Brillouin ...
Formulation of Stability Conditions for Systems Containing Driven Rotors
(1996-03)
The much maligned energy-sink analysis is revisited to derive stability conditions for a dual-spin spacecraft that is subjected to possible energy additions by the motor torque. Landon's old idea of subtracting the work ...
Low-Earth-Orbit Maintenance: Reboost vs Thrust-Drag Cancellation
(1995-07)
We define the problem of orbit maintenance within an atmosphere as keeping the spacecraft within a specified altitude
band about a mean circular orbit.
Nutational Stability and Core Energy of a Quasirigid Gyrostat
(1993-07)
The asymptotic nutational stability of a quasirigid gyrostat is analyzed. The primary purpose of this analysis is to resolve a debate concerning the use of the energy-sink method of analysis for systems containing driven ...
Second Look at Approximating Differential Inclusions
(2001-02)
In many direct methods for numerically solving optimal control problems, a collocation technique is used. What distinguishes numerous direct collocation schemes is the discretization of the time history and the way the ...
Gravitational Effects of Earth in Optimizing Delta V for Deflecting Earth-Crossing Asteroids
(2001-10)
Analyses incorporating the gravitational effects of Earth to calculate optimal impulses for de ecting Earthcrossing
asteroids are presented. The patched conic method is used to formulate the constrained optimization ...
A Unified Pseudospectral Framework for Nonlinear Controller and Observer Design
(American Control Conference, 2007-07-11)
As a result of significant progress in pseudospectral methods for real-time dynamic optimization, it has become apparent in recent years that it is possible to present a unified framework for both controller and observer ...