The Monitor of Incipient Damage of Ball Bearings by the Application of Adaptive Noise Cancellation Technique.

• Main Authors: Shiun-nan Kuo, 郭訓男
• Other Authors: Hai-Ping Lin
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/59344756840450275706

碩士 === 大葉大學 === 車輛工程學系碩士班 === 91 === Ball bearings are the most important elements in the machine system that used to support the rotating spindle and to carry the load. The conditions of bearings not only influence the working properties of machine but also the safety of the system. The vibration of incipient failure of bearings will be masked by the background vibration signal of machine system in the process of measurements. So the result of measurement can not to determine the incipient failure direct of bearing in the maximum of greatest of signal-to-noise density ratio (SNR) condition. The objective of this study is to set up the adaptive noise cancellation (ANC) system that can handle the vibration signal of low signal-to-noise density ratio (SNR). This technique can be used to monitor the state of bearings in running conditions to achieve the objective of real-time monitoring.