ABSTRACT
This chapter introduces some of the various classical techniques of vibration control for the purpose of vibration reduction, such as balancing of rotating and reciprocating machine, control of natural frequency, damping and stiffness modification, isolators, and absorbers. Vibration isolation methods are used to reduce the undesired effects of vibration. It involves the insertion of a resilient member called an isolator between the vibrating mass and the source of vibration so that a reduction in the dynamic response of the system is achieved under specified conditions of vibration excitation. If a system is acted upon by a force whose excitation frequency nearly coincides with its natural frequency, the vibration of the system can be reduced by using a dynamic vibration absorber. Resonators are used in certain cases where it is easier and more efficient to locate anti-vibration systems near the vibration source. Most systems possess damping to some extent, which is helpful in vibration control.
