한국윤활학회:학술대회논문집 (Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference)

한국트라이볼로지학회 (Korean Tribology Society)
권호 표지

FREQUENCY SPECTRUM ANALYSIS OF ACOUSTIC EMISSION OF HARD DISK DRIVE HEAD/DISK INTERACTION

  • Chung, K.H. (Department of Mechanical Engineering, Yonsei University) ;
  • Oh, J.K. (Department of Mechanical Engineering, Yonsei University) ;
  • Moon, J.T. (Department of Mechanical Engineering, Yonsei University) ;
  • Kim, D.E. (Department of Mechanical Engineering, Yonsei University)
  • 발행 : 2002.10.21
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In order to evaluate the flying characteristics of slider, the acoustic emission (AE) as well as friction signals are typically utilized. In this work the frequency spectrum analysis is performed using the AE signal obtained during the head/disk interaction such as load/unload mechanism using ramp, impact situation in the presence of a bump on disk surface and other contact phenomena including particle interaction. It was shown that the influence of impact can be characterized effectively in the AE frequency spectrum. As a result of this work, frequency spectrum analysis will be utilized with better understanding for studying the head/disk interface (HDI) characteristics and monitoring the particle interaction in HDI effectively.

키워드