5.4 Identification of interface contact and friction dynamics using vibrational signal

5.4.1 Contact locations and contact force

Based on detection of the presence of slide body resonance, an AE signal can be used not only to detect the presence of slider-disk impact, but also to identify the detailed dynamics characteristics associated with contact. When a slider glides or slides on a disk making impact or continuous contact with bumps or asperities on disk, the AE signal can be recorded continuously and is Fourier transformed into the frequency domain. Then the contact event can be identified by verifying the presence of slider body resonance. Moreover, the acoustic energy associated with the bending and torsional mode of slider vibrations ...

Get Handbook of Friction-Vibration Interactions now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.