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

ISSN printed: 1733-8670, ISSN on-line: 2392-0378
Dounar, Stanislau1; Iakimovitch, Alexandre2; Jakubowski, Andrzej3
URI: https://repository.am.szczecin.pl/handle/123456789/2622
2020-06-29
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.
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Title

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

Pages

91-98

Figures

7

Tables

2

ISSN printed

1733-8670

ISSN on-line

2392-0378

DOI

10.17402/423

Type

Journal

62 Scientific Journals of the Maritime University of Szczecin, no. 62 / 2020

Publisher

Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie

Copyright Holder

Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie

Published

2020-06-29

Recieved

2019-10-21

Accepted

2020-06-02

Funding

No data

Keywords

FEA, lathe, rotor, centerline, excitation

URI:

https://repository.am.szczecin.pl/handle/123456789/2622

Language

English

Authors

Dounar, Stanislau1; Iakimovitch, Alexandre2; Jakubowski, Andrzej3

Affiliation

1 Belarusian National Technical University, Mechanical Engineering Faculty Nezalezhnasci 65, 220127 Minsk, Belarus,
2 Belarusian National Technical University, Mechanical Engineering Faculty Nezalezhnasci 65, 220127 Minsk, Belarus,
3 Maritime University of Szczecin, Faculty of Marine Engineering 1–2 Waly Chrobrego St., 70-500 Szczecin, Poland, a.jakubowski@am.szczecin.pl

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