About the Book
This book is a comprehensive manual for setting up basic and involved experiments in the areas of vibration, acoustics and strain measurement (using strain gauges only). It will serve as a reference to conduct experiments of a pedagogical nature in these areas. It covers the various theoretical aspects of experimental test rigs, as well as the description and choice of transducers/equipment. While the book is targeted to meet the needs of academic and research and development organizations, industry will be benefitted equally. The contents have been formulated so as to help persons with no previous exposure to vibration, acoustics or stress analysis, or any rigorous mathematical background.
The book begins with an explanation of the need for such experimentation and testing, elucidated by the general theory pertaining to each area of vibration, acoustics and stress analysis. This is followed by a comprehensive description of a variety of vibration and acoustic pickups and exciters, as well as strain gauge transducers. The fundamentals of signal processing theory, including the basics of random signals have been included to enable the user to make a proper choice of settings on an analyzer or measuring equipment. Also added is a description of modal analysis theory and related parameter extraction techniques. The book illustrates around fifty experiments in the areas of vibration, acoustics and strain measurements in separate chapters. The book also includes a couple of experiments in modal analysis. The presentation is such that an academician could mix and match these experiments to suit the laboratory courses being taught at undergraduate or postgraduate level.
Suitable anecdotes are included, as appropriate, to make the subject more interesting. Besides, all chapters are provided with conceptual questions which will provoke the reader to think and gain a better understanding of the subjects.
Contents
1. Introduction 2. Theory of Vibration 3. Equipment for Measurement and Generation of Vibration 4. Fundamentals of Acoustics 5. Equipment for Measurements in Acoustics 6. Theory of Stress Analysis 7. Strain Gauge Based Equipment 8. Fundamentals of Signal Analysis 9. Basics of Experimental Modal Analysis 10. Vibration Experiments 11. Experiments in Acoustics 12. Common Experiments in Stress Analysis
About the Author
Prof. C. Sujatha is Professor in the Machine Design Section, Dept. of Mechanical Engineering, Indian Institute of Technology Madras, India. She did her post graduation in Electrical Engineering in 1987 and Ph.D. in Applied Mechanics in 1991 from IIT Madras. She has more than 35 years of experience in teaching, research and industrial consultancy in the areas of machine dynamics, vehicular vibration, acoustics, instrumentation and signal analysis, condition monitoring, etc. She has also taught courses at the undergraduate and postgraduate level in subjects related to these areas at I IT Madras. She has delivered numerous lectures and presented papers in international and national conferences. She has more than 190 publications in peer-reviewed international and national journals and proceedings of international and national conferences. She has published a book entitled "Vibration and Acoustics: Measurements and Signal Analysis" with Tata Mc Graw-Hill Education Private Limited. She also has two monographs to her credit. She has guided 38 Ph.D. and M.S. (by Research) scholars and more than 125 M.Tech. and B.Tech. students. She has coordinated a large number of industrial consultancy projects for more than 250 industries in India. She has also undertaken many sponsored research projects and has been associated in an advisory capacity with prestigious national R&D and defence organizations. |
