Multiple Fault Diagnosis for Sheet Metal Fixtures Using Designated Component Analysis  

Oleh:

Hu, S. Jack ; Camelio, Jaime A.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Manufacturing Science and Engineering vol. 126 no. 1 (Feb. 2004), page 91-97.
Topik: DIAGNOSIS; fault diagnosis; sheet metal fixture; component analysis

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ93.4 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

This paper presents a new approach to multiple fault diagnosis for sheet metal fixtures using designated component analysis (DCA). DCA first defines a set of patterns based on product / process information, then finds the significance of these patterns from the measurement data and maps them to a particular set of faults. Existing diagnostics methods has been mainly developed for rigid - body - based 3 - 2 - 1 locating scheme. Here an N - 2 - 1 locating scheme is considered since sheet metal parts are compliant. The proposed methodology integrates on - line measurement data, part geometry, fixture layout and sensor layout in detecting simultaneous multiple fixture faults. A diagnosability discussion for the different type of faults is presented. Finally, an application of the proposed method is presented through a computer simulation.

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