This book describes the active vibration control techniques which have been developed to suppress excessive vibrations of structures. It covers the fundamental principles of active control methods and their applications and shows how active vibration control techniques have replaced traditional passive vibration control. The book includes coverage of dynamic modeling, control design, sensing methodology, actuator mechanism and electronic circuit design, and the implementation of control algorithms via digital controllers. An in-depth approach has been taken to describe the modeling of structures for control design, the development of control algorithms suitable for structural control, and the implementation of control algorithms by means of Simulink block diagrams or C language. Details of currently available actuators and sensors and electronic circuits for signal conditioning and filtering have been provided based on the most recent advances in the field.
The book is used as a textbook for students and a reference for researchers who are interested in studying cutting-edge technology. It will be a valuable resource for academic and industrial researchers and professionals involved in the design and manufacture of active vibration controllers for structures in a wide variety of fields and industries including the automotive, rail, aerospace, and civil engineering sectors.
Introduction.- Definition of Active Vibration Control.- Smart Materials and Structures.- Recent Technology.- Future Technology Trend.- Fundamentals of Vibrations.- Single-Degree-of-Freedom Spring-Mass-Damper System.- Free and Forced Vibration Analysis.- MATLAB and Simulink.- Control Design.- Closed-Loop System.- Stability Analysis.- Sensors and Actuators.- Accelerometer.- Piezoelectric Sensor and Actuator.- Implementation of Control Algorithms.- Analogue Circuit.- Microprocessor.- Experimental Process.- Measurement of Frequency Response.- Vibration Testing.- Application Examples.- Beam Structure.- Grid Structure.
Moon K. Kwak received B.S. and M.S. degrees in Naval Architecture from Seoul National University in 1981 and 1983. He then received his Ph.D. degree from the Dept. of Engineering Science and Mechanics of Virginia Tech in 1989. He taught dynamics at the same department of Virginia Tech as an assistant professor and after that he worked at the USAF Phillips Laboratory and the University of New Mexico. He is currently a Professor at the Department of Mechanical, Robotics and Energy Engineering of Dongguk University in Seoul, Korea. He worked as the provost of the academic affairs and the dean of Dharma college of Dongguk University. He served as the president of the Korean Society of Noise and Vibration Engineers (KSNVE) in 2020 and hosted InterNoise 2020 conference held in Seoul, Korea. His main research areas of interests are active vibration control, dynamics and control, smart structures, and fluid-structure interaction problem.
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