A Theory for Handling Qualities with Applications to MIL-F-8785B. PDF Download
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Author: Ralph H. Smith Publisher: ISBN: Category : Airplanes Languages : en Pages : 185
Book Description
This report hypothesizes a model for pilot-airplane system dynamics which, it is claimed, will unify existing theories, explain peculiarities in available human response data, and permit the prediction of pilot opinion rating (POR) for tasks of interest to the assessment of aircraft flying qualities. The hypothesized model structure is multiple loop with essential nonlinearities. The proposed pilot model is further hypothesized to account for much that has been identified as pilot adaptation in past work. An attempt to parameterize the proposed model by a trial and error digital computer simulation produced promising but inconclusive results. However, comparison of the proposed pilot model with known forms of measured pilot dynamics for a wide range of aircraft dynamics suggested a metric for the correlation and prediction of POR that appears to be physically related to activity at a particular point within the central nervous system. This metric was evaluated for certain available data sets and was shown to be a consistent and sensitive measure of POR. It was then used to evaluate the short-period requirements of the flying qualities specification MIL-F-8785B. Several general and specific changes to the specification are recommended as a result of this study. (Author).
Author: Ralph H. Smith Publisher: ISBN: Category : Airplanes Languages : en Pages : 185
Book Description
This report hypothesizes a model for pilot-airplane system dynamics which, it is claimed, will unify existing theories, explain peculiarities in available human response data, and permit the prediction of pilot opinion rating (POR) for tasks of interest to the assessment of aircraft flying qualities. The hypothesized model structure is multiple loop with essential nonlinearities. The proposed pilot model is further hypothesized to account for much that has been identified as pilot adaptation in past work. An attempt to parameterize the proposed model by a trial and error digital computer simulation produced promising but inconclusive results. However, comparison of the proposed pilot model with known forms of measured pilot dynamics for a wide range of aircraft dynamics suggested a metric for the correlation and prediction of POR that appears to be physically related to activity at a particular point within the central nervous system. This metric was evaluated for certain available data sets and was shown to be a consistent and sensitive measure of POR. It was then used to evaluate the short-period requirements of the flying qualities specification MIL-F-8785B. Several general and specific changes to the specification are recommended as a result of this study. (Author).
Author: G. Johannsen Publisher: Elsevier ISBN: 1483190536 Category : Technology & Engineering Languages : en Pages : 443
Book Description
Analysis, Design, & Evaluation of Man-Machine Systems presents an examination of the construction and application of a combined network and production systems model. It discusses the computer simulation and experimental results of a fuzzy model of driver behavior. It addresses the ergonomic aspects of working places in control rooms. Some of the topics covered in the book are the control and supervision of the eurelios solar power plant; computer aided control station with coloured display for production control; dynamic and static models for nuclear reactor operators; ironies of automation; and theory and validation of model of the human observer and decision maker. The operation simulation for the evaluation and improvement of a medical information system are fully covered. An in-depth account of an online information retrieval through natural language is provided. The control of input variables by head movements of handicapped persons is completely presented. A chapter is devoted to a graphical hardware description language for logic simulation programs. Another section focuses on the symbiotic, knowledge-based computer support systems. The book can provide useful information to computer programmers, engineers, students, and researchers.
Author: Gavriel Salvendy Publisher: Wiley-Interscience ISBN: Category : Technology & Engineering Languages : en Pages : 2172
Book Description
"In orchestrating this book, Dr. Salvendy invited contributions from more than 100 of the foremost authorities around the world. Each of its 60 chapters was reviewed by an international advisory panel comprised of some of today's leading figures in human factors and ergonomics. While each chapter establishes the theoretical and empirical foundations of the subject under discussion, the book's approach is primarily applications-oriented. Hence throughout readers will find case studies, examples, figures, and tables that optimize the usability of the material presented." "It is an indispensable tool for human factors and ergonomics specialists, safety and industrial hygiene professionals and engineers, human resource professionals and managers in manufacturing and service industries, and for educational institutions and government."--BOOK JACKET.
Author: I. L. Ashkenas Publisher: ISBN: Category : Airplanes Languages : en Pages : 40
Book Description
This report is a codification in two parts of conventional aircraft handling qualities criteria. The results of this effort are to serve as an intermediate design guide in the areas of lateral-directional oscillatory and roll control. The roll handling qualities portion of this report uses as a point of departure the concept that control of bank angle is the primary piloting task in maintaining or changing heading. In the lateral oscillatory portion of this effort, in defining requirements for satisfactory Dutch roll characteristics, a fundamental consideration is the fact that the motions characterizing this mode are ordinarily not the pilot's chief objective. That is, he is not deliberately inducing Dutch roll motions in the sense that he induces rolling and longitudinal short-period motions. A worthwhile approach to establishment of Dutch roll damping requirements is to first establish the basic level, and then to study the varied influences of the disturbance parameters. This approach provides the basis for the material contained in this report.
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages :
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Publisher: ISBN: Category : Languages : en Pages : 282
Book Description
A study of helicopter roll control effectiveness based on closed-loop task performance measurement and modeling is presented. Roll control criteria are based upon task margin, the excess of vehicle task performance capability over the pilot's task performance demand. Appropriate helicopter roll axis dynamic models are defined for use with analytic models for task performance. Both near-earth and up-and-away large-amplitude maneuvering phases are considered. The results of in-flight and moving-base simulation measurements are presented to support the roll control effectiveness criteria offered. This Volume contains the theoretical analysis, simulation results and criteria development. Keywords: Rotorcraft; Helicopter handling qualities. (Author).
Author: Publisher: Academic Press ISBN: 0080553907 Category : Computers Languages : en Pages : 459
Book Description
The book emphasizes neural network structures for achieving practical and effective systems, and provides many examples. Practitioners, researchers, and students in industrial, manufacturing, electrical, mechanical,and production engineering will find this volume a unique and comprehensive reference source for diverse application methodologies. Control and Dynamic Systems covers the important topics of highly effective Orthogonal Activation Function Based Neural Network System Architecture, multi-layer recurrent neural networks for synthesizing and implementing real-time linear control,adaptive control of unknown nonlinear dynamical systems, Optimal Tracking Neural Controller techniques, a consideration of unified approximation theory and applications, techniques for the determination of multi-variable nonlinear model structures for dynamic systems with a detailed treatment of relevant system model input determination, High Order Neural Networks and Recurrent High Order Neural Networks, High Order Moment Neural Array Systems, Online Learning Neural Network controllers, and Radial Bias Function techniques. Coverage includes: Orthogonal Activation Function Based Neural Network System Architecture (OAFNN) Multilayer recurrent neural networks for synthesizing and implementing real-time linear control Adaptive control of unknown nonlinear dynamical systems Optimal Tracking Neural Controller techniques Consideration of unified approximation theory and applications Techniques for determining multivariable nonlinear model structures for dynamic systems, with a detailed treatment of relevant system model input determination
Author: Ralph H. Smith
Author: Ralph H. Smith
Author: G. Johannsen
Author: Gavriel Salvendy
Author: I. L. Ashkenas
Author: Roger H. Hoh
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