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This study investigates the vibration signatures on bearing housing caused by shaft rub using a rotor rub device on a machinery fault simulator. Full annular rub was simulated with aluminum, brass, and plastic rub head materials at speeds of 1000, 2000, and 3000 RPM, revealing that rub generates high frequency structure resonances. The results indicate that while the vibration spectrum profile changes with speed, the positions of excited structure resonances remain consistent across different rub materials.

Author

Héctor Rivera

Language

EN