Finite Element Method analysis of the deformation of the shaft and supports of a large, precise lathe – Cutting force excitation

• Autorzy: Dounar Stanislau , Iakimovitch Alexandre , Jakubowski Andrzej

Identyfikatory

DOI

10.17402/423

• Języki publikacji: EN

Abstrakty

EN

In this paper, Finite Element Method (FEA) harmonic analysis of the changes caused by raising the centerline of a large, precise lathe is presented. Two standalone dynamic subsystems (“Rotor Shaft” and “Support”) are revealed and the resilience of the “Rotor Shaft” to the raising procedure is stated. The three subsystems of the “Support” class are much more dynamically pliable, only the main eigenmodes of the shaft and supports are excited in the 0…100 Hz range (MR1“Half-wave” and MS1…3 “Radial pecking”). Mounting the lunette suppresses the MR1 peak by a factor of two; therefore the lunette is strongly recommended, with an optional tuned-mass damper (TMD). The support’s resonant frequencies MS1…3 are more deleterious for precision; they should be omitted or weakened using TMD’s that are attached to the supports. For the above conditions, raising the centerline (up to 600 mm) may be included in the lathe renovation program.

Słowa kluczowe

EN

FEA; lathe; rotor; centerline; excitation; resonance

• Wydawca: Wydawnictwo Naukowe Akademii Morskiej w Szczecinie
• Czasopismo: Zeszyty Naukowe Akademii Morskiej w Szczecinie
• Rocznik: 2020
• Tom: nr 62 (134)
• Strony: 91--98
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Dounar Stanislau

• Belarusian National Technical University, Mechanical Engineering Faculty Nezalezhnasci 65, 220127 Minsk, Belarus

autor

Iakimovitch Alexandre

• Belarusian National Technical University, Mechanical Engineering Faculty Nezalezhnasci 65, 220127 Minsk, Belarus

autor

Jakubowski Andrzej

• Maritime University of Szczecin, Faculty of Marine Engineering 1–2 Waly Chrobrego St., 70-500 Szczecin, Poland

Bibliografia

• 1. Dounar, S., Iakimovitch, A., Ausiyevich, A. & Jakubowski, A. (2018) FEA-analysis of shaft and supports deformations for huge precise lathe. Statics and resonances. New trends in productive engineering 1, 1, pp. 341–348.
• 2. Dounar, S.S., Sokorov, I.O., Ermalovich, V.I. & Motsuk, E.A. (2017) Renovation order analysis for huge lathe by FEA simulation. Part 1. Statics and dynamics of radial direction. Mashinostroenie: Repub. interdepart. collection of the scientific works proceed. Vol. 30, Minsk: BNTU, pp. 75–86.
• 3. Jafarzadeh, E. & Movahhedy, M.R. (2017) Numerical simulation of interaction of mode coupling and regenerative chatter in machining. Journal of Manufacturing Processes 27, pp. 252–260.
• 4. López de Lacalle, L.N. & Lamikiz, A. (2008) Machine Tools for High Performance Machining. London: Springer-Verlag.
• 5. Lu, K., Lian, Z., Gu, F. & Liu, H. (2018) Model-based chatter stability prediction and detection for the turning of the flexible workpiece. Mechanical Systems and Signal Processing 100, pp. 814–826.
• 6. Muhammad, B.B., Wan, M., Feng, J. & Zhang, W. (2017) Dynamic damping of machining vibration: a review. International Journal of Advanced Manufacturing Technology 89 (9), pp. 2935–2952.
• 7. Olvera, D., López de Lacalle, L.N., Compeán, F.I., Fz-Valdivielso, A. & Campa, F.J. (2012) Analysis of tool tip radial stiffness of turn-milling centers. International Journal of Advanced Manufacturing Technologies 60, pp. 883–891.
• 8. Stepan, G., Kiss, A.K., Ghalahamchi, B., Sopanen, J. & Bachrathy, D. (2017) Chatter avoidance in cutting highly flexible workpieces. CIRP Annals 66 (1), pp. 377–380.
• 9. Tobias, S.A. (1965) Machine-tool vibration. London: Blackie & Sons Ltd.
• 10. Vasilevich, Yu.V., Dounar, S.S. & Karabaniuk, I.A. (2016) Finite element analysis of filler influence on dynamic rigidity of heavy machine tool portal. Science & Technique 15, 3, pp. 233–241.
• 11. Vasilevich, Yu.V. & Dounar, S.S. (2017) Finite element analysis of centerless-lunette turning of the heavy shaft. Science & Technique 16, 3, pp. 196–205.
• 12. Yang, Y., Liu, Q. & Wang, M. (2010) Optimization of the tuned-mass damper for chatter suppression in turning. Chinese Journal of Mechanical Engineering 23 (6), pp. 717–724.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).