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Abstract:
The
radiation mechanism of coupling noise is analysed, which radiates from
an active structure. A new method is presented which is used to separate
and detect radiation noise onlinearly. In coupling noise field, the
tracking comparison and feedback filtering are applied to diagnose
initial stage fault of transmission parts in spindle box. As a practical
example, the noise radiated from CT6140 spindle box is separated and
detected onlinearly. The noise modal is suppressed and restructured. The
initial stage fault is diagnosed which exists in transmission parts. The
fault model is analysed. So, a new test way starts, in which the noise
signal is collected easily from strong coupling noise.
Key words:
Tracking
comparison Feedback filtering Fault diagnosis Noise
modal
CLC No: TB532
Received
20000511, received in revised form 20001020
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