Boots – shoes – and leggings
Patent
1997-04-30
1999-12-21
Grant, William
Boots, shoes, and leggings
364152, 36447417, 36414809, 364160, 702 56, 702182, 701 29, H03D 1300
Patent
active
060040173
ABSTRACT:
A data-driven method and system are provided for predicting limit cycle oscillations such as chatter to obtain a classifier signal which, in turn, may be utilized by a control method and system. The method and system utilize newly-developed algorithms based on Teager algorithm which are applied to "vibration" data to predict when chatter phenomenon may emerge during an ongoing machining process. Using real data from a turning operation on a lathe, the onset of chatter can be predicted so that sufficient time is available to deploy an automatic control strategy such as reduction or random variation of spindle speed to quench the "chatter". The method and system preferably use the generalized Teager measure.
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Calcano Ivan
Grant William
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