Aeronautics Astronautics

Download Aircraft and rotorcraft system identification : engineering by Mark Tischler, Robert Remple PDF

By Mark Tischler, Robert Remple

Even though many books were written at the thought of procedure identity, few can be found that supply a whole engineering remedy of procedure identity and the way to effectively use it on flight autos. This booklet presents the original viewpoint of over two decades of flight-test purposes to either airplane and rotorcraft and is a important source for college kids, operating engineers, and others drawn to atmospheric flight mechanics, modeling and simulation, and attempt and evaluate. It offers confirmed tools, useful guidance, and real-world flight-test effects for quite a lot of state of the art flight automobiles, from small uncrewed aerial autos (UAVs) to giant manned aircraft/rotorcraft.

Beginning with the elemental options of method identity, every one bankruptcy strains an easy simulation instance and actual flight examples during the step by step approach from instrumentation and information checking to version extraction and version verification. The frequency-response technique, that's detailed to this e-book, is mainly compatible for process identity of airplane and rotorcraft dynamics versions from flight-test info. an entire bankruptcy is dedicated to higher-order modeling of helicopters. Many functions are incorporated to illustrate how the goods as a result of procedure identity are used. particular purposes comprise flight mechanics and handling-qualities analyses, balance margin choice, structural mode decision, and simulation version constancy assessment.

The ebook assumes wisdom of the fundamental techniques of aeronautics, Laplace transforms, and flight dynamics and classical regulate. Emphasis is put on engineering tools and interpretation of flight-test effects and every key process or research program is illustrated with images received from the approach id software program (CIFERÆ) supplied with the booklet. Case stories in accordance with genuine flight-test initiatives are incorporated in addition! as difficulties for college kids to resolve utilizing the supplied CIFERÆ software.

A recommendations guide, written via Christina M. Ivler and Mark B. Tischler is obtainable from the writer.

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Example text

The foundation of the CIFER® approach is the high-quality extraction of a complete MIMO set of nonparametric input-to-output frequency responses. These responses fully characterize the coupled characteristics of the system without a priori assumptions. fm Page 17 Friday, June 16, 2006 3:15 PM INTRODUCTION AND BRIEF HISTORY 17 conditioning (Chapter 9), and composite window techniques (Chapter 10), developed and exercised with over 20 years worth of flight project applications, provide significant improvements in frequency-response quality relative to standard fast Fourier transforms (FFTs).

M. Leung, Mavis G. Cauffman, Gary L. Villere, Lawrence E. Pierce, Dexter L. Hermstad, and Paul S. Salchak. A special thanks go to my father, Morris Tischler, for his lifelong encouragement and for being my greatest fan. The second author came to the subject matter of this book from a very different direction. The experience gained while teaching mathematics to undergraduate and graduate students provided invaluable insights into how to explain difficult subjects to students with varying levels of education.

Thanks go to Thomas J. Esposito for his care in preparing all of the final graphics material. Special thanks go to Jeffery A. Lusardi and Colin R. Theodore for their help in proofing the final galleys. Thanks again from both of us to everyone that helped and encouraged us in this project. The second author expresses deep gratitude to a number of people who were critical to his successful participation in writing this book. Management support from the University of California at Santa Cruz and Ames Research Center, especially Bassam Musaffar and Larry Hogle, created ideal conditions for working on the book while balancing the scheduling demands of other important projects.

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