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Prediction of vibration frequencies in milling using modified Nyquist method
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avd för tillverkningsprocesser. (PTW)ORCID-id: 0000-0001-9331-7354
2015 (engelsk)Inngår i: CIRP - Journal of Manufacturing Science and Technology, ISSN 1755-5817, E-ISSN 1878-0016, Vol. 11, nr November, s. 73-81Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Study of the vibration frequencies at different cutting conditions is an alternative to the use of impact hammer test for identification of natural frequencies of the machining structure and calculation of stability lobe diagrams. Vibration frequencies not only depend on the natural frequencies of the structure, but also they are dependent on the spindle speed, damping ratio of the structure and the depth of cut. Ignoring these additional parameters would lead to errors in identification of the natural frequencies of the system and considerable deviation of the calculated stability lobe diagrams from actual cutting tests. In this study modified Nyquist method is used to investigate the effects of spindle speed, depth of cut and damping ratio of the structure on vibration frequencies. The quality of frequency prediction is compared to linear and nonlinear time domain simulations and machining experiments.

sted, utgiver, år, opplag, sider
2015. Vol. 11, nr November, s. 73-81
Emneord [en]
Stability chart; Chatter; Nyquist stability criterion; Modified Nyquist contours; Vibration frequency; Dominant poles; Time domain simulation
HSV kategori
Forskningsprogram
Produktionsteknik; TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-8634DOI: 10.1016/j.cirpj.2015.08.006Scopus ID: 2-s2.0-84949225279OAI: oai:DiVA.org:hv-8634DiVA, id: diva2:867907
Tilgjengelig fra: 2015-11-07 Laget: 2015-11-07 Sist oppdatert: 2019-12-02bibliografisk kontrollert

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