Affiliations: Department of Mechanical Engineering, National
Institute of Technology, Rourkela, Odisha, India
Note: [] Corresponding author: Bhagat Singh, Department of Mechanical
Engineering, National Institute of Technology, Rourkela, Odisha, India. Tel.:
+91 7742989240; E-mail:bhagatmech@gmail.com
Abstract: The present work is focused on the study of damping mechanism in
layered and welded cantilever beams with unequal thickness. It is observed that
a number of vital parameters such as: thickness ratio, pressure distribution
characteristics, relative slip and kinematic co-efficient of friction at the
interfaces, initial amplitude of excitation, length and thickness of the beam
specimen govern the damping capacity of these structures. Experiments have been
conducted in order to study the effect of these parameters and validate the
developed damping model. The damping model of the structure is found to be in
fairly good agreement with the measured data. Finally, the results for the
damping capacity are discussed and rationalized.
