A Brief Review on Determination of Viscous, Coulomb and Particle Damping Content from the Responses of a Single Degree of Freedom System Harmonically Forced Linear Oscillator

Mechanical vibration systems with viscous, Coulomb friction and particle damping are of importance in the applications of dynamics and control problems. When a vibrating system is damped with more than one type of models of damping, it is necessary to determine which of these types of damping are more effective to control the resonant response. In such case, it is important to identify damping parameters from the responses of a vibrating system. The problem of identification of content of each type damping in a given system is a major research area. A brief review of some of research papers in the above mentioned area are focused here. Some of techniques which are used to quantify the level of damping in a system are Logarithmic Decrement Method, Hysteresis Loop Method, and Half Power Band-Width Method suggested by most of authors.