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Automatic control provides the means of understanding the problems of stability and precision of dynamic systems. Actually most engineers must have good understanding of this field. The majority of textbooks on automatic control are most appropriated for electrical engineers. The main problem in designing and analyzing a control loop for nonelectrical systems normally arises when deducing adequate mathematical model for the system. Generally, the components cannot readily be represented by simple discrete ideal elements.
The classical approach based on the transfer function and associated techniques of analysis is more easily comprehended and related to practice by the beginners than is the modern control theory. Therefore this text is prepared for the mechanical engineering students. It deals with the basics of linear control theory. The text includes simple examples enabling applicants to understand the problems of dynamic systems accuracy and stability.
The text includes examples and exercises that facilitate the comprehension of the control theory, especially for the mechanical engineering students.
4. Analysis of the transient and frequency responses of the system and how does the response vary with the form of transfer function and the input excitation. The text discusses also how a transfer function can be determined by practical testing of a system, Chapters 6 & 7.
7. Improvement of the system stability by introducing and designing different types of compensators, mainly the P, PI & PID controllers, Chapter 10.
It is essential for engineers to have an understanding of the nature of the dynamic behavior of systems, as well as the available methods for analyzing and improving their stability and precision. As for mechanical engineers, they should be able to deal with the analysis and design of dynamic systems of different physical nature. A simple electro-hydraulic servo-valve, for example, includes electric, magnetic, hydraulic and mechanical components. Therefore, an increasing proportion of engineers should be acquainted with the modeling of the multi-disciplinary systems as well as the fundamentals of control theory.