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Analog versus Digital Control of Boring Bar Vibration
Vise andre og tillknytning
Ansvarlig organisasjon
2005 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert) Published
Abstract [en]

In workshops where metal cutting is performed, the machining processes frequently introduces productivity degrading vibration problems and annoying sound, sometimes almost at unbearable levels. Besides producing disturbing noise, the vibrations affect the surface finish of the workpiece and the tool life. Two different approaches based on feedback control are investigated, both applied for the control of an active boring bar. The first approach is based on a digital adaptive feedback controller; the feedback filtered-X LMS algorithm. The second approach is based on an analog controller; a feedback controller with gain and phase orthogonally adjustable, thus flexible for the control of systems with different dynamic properties. Based on open loop frequency response function estimates, robustness and stability of both the digital and the analog feedback control system are discussed. A comparison of the two controllers concerning their boring bar vibration attenuation performance shows that the analog controller attenuates the vibration in same order of magnitude as the digital controller which is approximately by up to 40 dB.

sted, utgiver, år, opplag, sider
Dallas, 2005.
Emneord [en]
Active, Adaptive, Control
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-10343Lokal ID: oai:bth.se:forskinfo043888085A16BC5CC12571BE003530BCOAI: oai:DiVA.org:bth-10343DiVA, id: diva2:838447
Konferanse
World Aerospace Congress
Tilgjengelig fra: 2012-09-18 Laget: 2006-08-02 Sist oppdatert: 2015-06-30bibliografisk kontrollert

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Håkansson, LarsClaesson, Ingvar

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Totalt: 115 treff
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  • en-GB
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