Boots – shoes – and leggings
Patent
1995-09-06
1997-09-02
Voeltz, Emanuel T.
Boots, shoes, and leggings
73654, G05D 1900
Patent
active
056638949
ABSTRACT:
A system and method for characterizing a machining process using techniques of mechanical signature analysis produces discriminants based on vibrational activity, measured at various positions on a machine tool. The system and method provide a complete characterization of an industrial machine tool including the machining structure, tooling, fixturing, workpiece, and operating environment under transient and steady state conditions both with and without machining loads. The method includes selection of appropriate sensors (24), sensor locations (24), mounting methods (24), signal conditioning (26), and data acquisition (28) and analysis (30) based upon the particular type of machine and machining process. The vibration signature analysis includes both time and frequency domain analysis. Dynamic stiffness measurements (36) are utilized in combination with data gathered from the machine tool during idle and machining periods to generate uniform discriminants (32) which provide an indication of machine operation. Machine information, including the uniform discriminants, is preferably stored in a database for future comparison and trending.
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Hamidieh Youssef Ali
Seth Brij Bahadur
Ford Global Technologies Inc.
Malleck Joseph W.
May Roger L.
Peeso Thomas
Voeltz Emanuel T.
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