Transcript Wear in Vibration Dampers.pptx

Wear in Vibration Dampers
Bill Beckman
Theory
•
•
•
Turbine blade design with vibration dampers relies on
damper contact to reduce frequency amplitudes to
acceptable blade vibe levels
Where frequency tuning can’t be done to push vibration
modes out operation range, dampers are utilized
High cyclic loading can often result in wear at contact
interface
Plan for Project
• Interface contact between blade and damper results
in wear of softer material
• Increasing wear resistance will retain damping
capabilities over the life of the component
• Would like to investigate wear rates of damper
material