Identification of spindle dynamics by receptance coupling for non-contact excitation system

Download

1-s2.0-S2212827119306523-main.pdf

Date

2019-01-01

Author

Özşahin, Orkun
Budak, Erhan
Rabréau, Clément
Le Loch, Sébastien

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

219
views

115
downloads

The identification of spindle dynamics plays a crucial role in accurate prediction of the stability diagrams for high speed machining operations. In this study, variations of the mode shapes of the tool-spindle assembly at high spindle speeds are examined using numerical models and hypotheses are formulated. An identification method of spindle dynamics is proposed, dedicated to non-contact excitation system; from which only cross FRF can be obtained (instead of tool tip FRF classically). Then, spindle dynamics is calculated using inverse Receptance Coupling (RC) method. Proposed method enables the identification of the speed dependent spindle dynamics in the full frequency range. The approach has been verified with the Finite Element Model (FEM) of a spindle-bearing assembly. The prediction by RC of the dynamics of another tool has been successfully compared to the FEM simulation. (C) 2019 The Authors. Published by Elsevier B.V.

Subject Keywords

Spindle dynamics, Receptance coupling, Non-contact excitation

URI

https://hdl.handle.net/11511/37511

DOI

https://doi.org/10.1016/j.procir.2019.04.038

Collections

Department of Mechanical Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Prediction of frequency response function (FRF) of asymmetric tools from the analytical coupling of spindle and beam models of holder and tool Özşahin, Orkun (2015-05-01) The prediction of chatter stability diagrams in milling requires accurate frequency response functions (FRF) at the tool - workpiece contact zone. Traditionally, the most accurate FRFs are best obtained through the experimental modal testing of each tool, which is costly. This paper presents analytical modeling and coupling procedures for spindle-holder-tool assemblies with asymmetric tools. Tools and holders are analytically modeled with continuous Timoshenko beams, while considering variation of the cross...
Development of a fast analytical method for prediction of part dynamics in machining stability analysis Alan, Salih; Özgüven, Hasan Nevzat; Department of Mechanical Engineering (2009) The objective of this study is to develop and implement practical and accurate methods for prediction of the workpiece dynamics during a complete machining cycle of the workpiece, so that FRFs of the workpiece can be used in chatter stability analysis. For this purpose, a structural modification method is used since it is an efficient tool for updating FRFs due to structural modifications. The removed mass is considered as a structural modification to the finished workpiece in order to determine the FRFs at...
Selection of design and operational parameters in spindle-holder-tool assemblies for maximum chatter stability by using a new analytical model Erturk, A.; Budak, E.; Özgüven, Hasan Nevzat (2007-07-01) In this paper, using the analytical model developed by the authors, the effects of certain system design and operational parameters on the tool point FRF, thus on the chatter stability are studied. Important conclusions are derived regarding the selection of the system parameters at the stage of machine tool design and during a practical application in order to increase chatter stability. It is demonstrated that the stability diagram for an application can be modified in a predictable manner in order to max...
Prediction of workpiece dynamics and its effects on chatter stability in milling Budak, Erhan; Alan, Salih; Özgüven, Hasan Nevzat (2012-01-01) The workpiece dynamics affect stability in machining of flexible parts. However, it is not a straightforward task to include it in the analysis since the workpiece dynamics continuously change due to mass removal and variation of the cutter contact. In this paper, a methodology for prediction of inprocess workpiece dynamics is presented, which is based on a structural dynamic modification using the FE model of the workpiece. The cutter location (CL) file is used to determine the removed elements at each too...
Development of artificial neural network based design tool for aircraft engine bolted flange connection subject to combined axial and moment load Sanlı, Tahir Volkan; Kayran, Altan; Department of Aerospace Engineering (2018) In this thesis, a design tool using artificial neural network (ANN) is developed for the bolted flange connections, which enables the user to analyze typical aircraft engine connections subjected to combined axial and bending moment in a fast yet very accurate way. The neural network trained for the design tool uses the database generated by numerous finite element analyses for different combinations of parametric design variables of the bolted flange connection. The defined parameters are the number of bol...

Citation Formats

O. Özşahin, E. Budak, C. Rabréau, and S. Le Loch, “Identification of spindle dynamics by receptance coupling for non-contact excitation system,” 2019, vol. 82, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37511.