Browsing Department of Aeronautics and Astronautics by Title
Now showing items 322-341 of 503
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Oman 65th program, photos and letters
(2013-05-06)2009 Program, letters and photos from CM Oman's 65th birthday symposium -
On Approximate Dynamic Inversion
(2009-05-08)Approximate Dynamic Inversion has been established as a method to control minimum-phase, nonaffine-in-control systems [1]. In this report, we re-state the main results of [1], clarify some minor notational errors, and prove ... -
On Dual-Weighted Residual Error Estimates for p-Dependent Discretizations
(Aerospace Computational Design Laboratory, Dept. of Aeronautics & Astronautics, Massachusetts Institute of Technology, 2011-09-21)This report analyzes the behavior of three variants of the dual-weighted residual (DWR) error estimates applied to the p-dependent discretization that results from the BR2 discretization of a second-order PDE. Three error ... -
On the numerical solution of simultaneous, non-linear equations in computer-aided preliminary design
(Cambridge, Mass. : MIT, Dept. of Aeronautics & Astronautics, Flight Transportation Laboratory, c1986, c1986)In the solution of problems in preliminary design, it often becomes necessary to solve systems of equations. An immediate example from aeronautical design is the frequent need to perform several iterations around the gross ... -
On the theory of shear flow
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine Laboratory, ©1966, ©1966)In this report are collected together some introductory notes on the theory of the three-dimensional, steady flow of an inviscid fluid. The equations of motion are discussed and transformed and expressions for the streamwise ... -
One Work Analysis, Two Domains: A Display Information Requirements Case Study
(HFES, 2012)d observations, among other techniques. Given the time and resources required, we examine how to generalize a work domain analysis technique, namely the hybrid Cognitive Task Analysis (hCTA) method across two domains in ... -
Operator Choice Modeling for UAV Visual Search Tasks
(IEEE Transactions, 2012-09)Unmanned aerial vehicles (UAVs) provide unprecedented access to imagery of possible ground targets of interest in real time. The availability of this imagery is expected to increase with envisaged future missions of one ... -
Operator Objective Function Guidance for a Real-time Unmanned Vehicle Scheduling Algorithm
(AIAA Journal of Aerospace Computing, 2012-12)Advances in autonomy have made it possible to invert the typical operator-to-unmanned-vehicle ratio so that asingle operator can now control multiple heterogeneous unmanned vehicles. Algorithms used in unmanned-vehicle ... -
Operator Performance in Long Duration Control Operations: Switching from Low to High Task Load
(HFES, 2012-10)Long duration, low task load environments are typical for nuclear power plant control rooms, where operators, after hours of operating under a low task load situation, may have to shift to a high task load situation. The ... -
Operator Scheduling Strategies in Supervisory Control of Multiple UAVs
(Aerospace Science and Technology, 2007)The application of network centric operations to time-constrained command and control environments will mean that human operators will be increasingly responsible for multiple simultaneous supervisory control tasks. One ... -
Optimal mistuning for enhanced aeroelastic stability of transonic fans
([Washington, D.C.? : National Aeronautics and Space Administration, 1983], 1983)An inverse design procedure was developed for the design of a mistuned rotor. The design requirements are that the stability margin of the eigenvalues of the aeroelastic system be greater than or equal to some minimum ... -
Out-of-kilter flow (OKF) : user's guide
(Cambridge, Mass. : MIT, Department of Aeronautics and Astronautics, Flight Transportation Laboratory, 1967, 1967)Section 1: The following few pages are from the book, "Flows in Networks" by Ford and Fulkerson, which is referenced in this report. After these few pages, the report itself commences. -- Section 2: This writeup is intended ... -
Output-based Adaptive Meshing Using Triangular Cut Cells
(Aerospace Computational Design Laboratory, Dept. of Aeronautics & Astronautics, Massachusetts Institute of Technology, 2006-10)This report presents a mesh adaptation method for higher-order (p > 1) discontinuous Galerkin (DG) discretizations of the two-dimensional, compressible Navier-Stokes equations. The method uses a mesh of triangular elements ... -
Paper Airplane user's manual : version four
(Cambridge, Mass. : Massachusetts Institute Technology, Flight Transportation Laboratory, Paper Airplane Project, c1987, c1987)Preface: This document provides the user with a step-by-step guide to using Paper Airplane, Version IV. Although this program can be used to design any system (once given the proper set of design equations), this manual ... -
Papers from the MIT-industry Cooperative Research Program, 1989 : proceedings of the annual meeting held at MIT
(Cambridge, Mass. : Massachusetts Institute of Technology, Dept. of Aeronautics & Astronautics, Flight Transportation Laboratory, [1989], 1989) -
Parallel parametric combinatorial search : its application to runway scheduling
(Cambridge, Mass. : Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, Flight Transportation Laboratory, [1987], 1987)The Runway Scheduling Problem (RSP) addresses the fundamental issues of airport congestion and energy conservation. It is a variation of the Traveling Salesman Problem (TSP) from which it differs in three basic points: the ... -
Parametric dependencies of aeroengine flutter for flutter clearance applications
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [2000], 2000)This thesis describes the effects of operational parameters upon aeroengine flutter stability. The study is composed of three parts: theoretical development of relevant parameters, exploration of a computational model, and ... -
Partitioning Complexity in Air Traffic Management Task
(International Journal of Aviation Psychology, 2006)Cognitive complexity is a term that appears frequently in air traffic control (ATC) research literature, yet there is little principled investigation of the potential sources of cognitive complexity. Three distinctly ... -
Past, Present And Future Implications Of Human Supervisory Control In Space Missions
(Acta Astronautica, 2008)Achieving the United States’ Vision for future Space Exploration will necessitate far greater collaboration between humans and automated technology than previous space initiatives. However, the development of methodologies ... -
Paying Attention to the Man behind the Curtain
(IEEE, 2011-03)In the push to develop smart energy systems, designers have increasingly focused on systems that measure and predict user behavior to effect optimal energy consumption. While such focus is an important component in these ...
