Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2007.05a
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- Pages.463-468
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- 2007
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- 1598-2548(pISSN)
Case_study of detecting loose part by acceleration signal
가속도 충격파형을 이용한 기기의 결함 위치분석 및 진단사례
- Published : 2007.05.10
Abstract
The abnormal sound of generator frame is analyzed by a acceleration signal. The spike-like time signal is major characteristics of impacting force. The distributional map of vibration level is one of visualization method. With map, noise source was easily detected. After de_assembly of generator, loose part of internal component is the source of impact force by mechanical movement of stator inherently. In contact condition of part with clearance, the level of impact signal is different at each revolution and impact signal did not happens periodically.