Passive vibration control by piezoelectric materials with electrical elements of resistance

摘要

The damping effect of piezoelectric materials with electrical elements of resistance on the vibration of structures like beams and disks, was investigated experimentally and analytically. It was shown experimentally that the piezoelectric material with resistance had damping effect and that an optimum resistance value existed to each vibration mode to exhibit maximum modal damping ratio. The piezoelectric materials can be used to increase damping of flexible structures like impellers of fluidmachinery.