Bøger af Ashish Tewari

Perhaps the only full publication to present a unified and straightforward introduction to the design and analysis of automatic control systems for both atmospheric and space flight vehicles, Automatic Control of Atmospheric and Space Flight Vehicles is intended to be a textbook for senior undergraduate and graduate students in aerospace engineering/aeronautics and astronautics departments. Covering basic control theory and design concepts, the material in the book has been specifically developed for a modern course on flight control systems, where the artificial distinction between aircraft, rockets, and spacecraft is removed. A wide variety of flight control topics are presented in a concise and easy-to-read-yet rigorous-manner. The book highlights an understanding of relevant flight dynamic principles required for designing a flight control system, placing specific emphasis on a wealth of realistic examples and exercises that require programming. A particularly appealing feature of the text is the ready and extensive use of MATLAB®/Simulink® codes in the many solved examples illustrating flight control design and analysis; these examples give the reader hands-on experience with practical problems and make the book an even more useful and illuminating tool. For convenience, all the codes used can be downloaded from the author's and publisher's websites. Moreover, selected exercise solutions are provided in the text, and a full solutions manual is available to instructors online.The coverage of flight control topics in the book is fundamental rather than exhaustive, with a greater emphasis on single-variable control for a strong understanding of the relevant concepts. The work may therefore be used for a first course on flight control systems. However, it also covers some advanced topics-such as linear optimal control, nonlinear orbit plane control, and two-point boundaryvalue problem solution for de-orbiting spacecraft-imparting a flavor of the variety found in automatic flight control, and will be of interest to experienced researchers and practitioners in aerospace and control engineering.

Modern aerospace vehicles, such as the space shuttle, other launch vehicles, and long-range ballistic missiles, do not discriminate between atmospheric and space flight. Most texts on flight dynamics, however, make this artificial distinction and therefore do not simultaneously cover aircraft and spacecraft. Bridging this gap in the literature, Atmospheric and Space Flight Dynamics is a unified presentation, demonstrating that the two disciplines have actually evolved from the same set of physical principles.Key features:* Introduction to a broad range of modern topics in an accessible, yet mathematically rigorous presentation* Many numerical examples and simulations utilizing MATLAB® and Simulink® fully integrated throughout the work* Simulations presented-usually not found in books on the same topic-are both realistic and instructive* Examples allow readers to easily build their own simulations for aircraft, missiles, launch vehicles, reentry vehicles, and spacecraft* Software is used as an instructional, hands-on tool, moving away from the "cookbook" approach found in other works* Supplementary material and MATLAB/Simulink code available* Numerous illustrations and end-of-chapter exercises* Separate solutions manual available to instructors upon requestPrimarily useful as a textbook for advanced undergraduate and beginning graduate-level students, the work is also an excellent reference or self-study guide for researchers and practitioners in aerospace engineering, aviation, mechanical engineering, dynamics, astrodynamics, aeronautics, and astronautics.

This book consolidates decades of knowledge on space flight navigation theory, which has thus far been spread across various research articles. By gathering this research into a single text, it will be more accessible to students curious about the study of space flight navigation. Books on optimal control theory and orbital mechanics have not adequately explored the field of space flight navigation theory until this point.The opening chapters introduce essential concepts within optimal control theory, such as the optimization of static systems, special boundary conditions, and dynamic equality constraints. An analytical approach is focused on throughout, as opposed to computational. The result is a book that emphasizes simplicity and practicability, which makes it accessible and engaging. This holds true in later chapters that involve orbital mechanics, two-body maneuvers, bounded inputs, and flight in non-spherical gravity fields.The intended audience is primarily upper-undergraduate students, graduate students, and researchers of aerospace, mechanical, and/or electrical engineering. It will be especially valuable to those with interests in spacecraft dynamics and control. Readers should be familiar with basic dynamics and modern control theory. Additionally, a knowledge of linear algebra, variational methods, and ordinary differential equations is recommended.

This book presents flight mechanics of aircraft, spacecraft, and rockets to technical and non-technical readers in simple terms and based purely on physical principles. Important aspects of both atmospheric and space flight mechanics are covered, including performance, stability and control, aeroelasticity, orbital mechanics, and altitude control.

Aeroservoelasticity

This book offers a unified presentation that does not discriminate between atmospheric and space flight.