Effects of Machine Tool Spindle Decay on the Stability Lobe Diagram: An Analytical-Experimental Study
An analytical-experimental investigation of machine tool spindle decay and its effects of the system’s stability lobe diagram (SLD) is presented. A dynamic stiffness matrix (DSM) model for the vibration analysis of the OKADA VM500 machine spindle is developed and is validated against Finite Element...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/4390185 |
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| _version_ | 1832556026932494336 |
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| author | Omar Gaber Seyed M. Hashemi |
| author_facet | Omar Gaber Seyed M. Hashemi |
| author_sort | Omar Gaber |
| collection | DOAJ |
| description | An analytical-experimental investigation of machine tool spindle decay and its effects of the system’s stability lobe diagram (SLD) is presented. A dynamic stiffness matrix (DSM) model for the vibration analysis of the OKADA VM500 machine spindle is developed and is validated against Finite Element Analysis (FEA). The model is then refined to incorporate flexibility of the system’s bearings, originally modeled as simply supported boundary conditions, where the bearings are modeled as linear spring elements. The system fundamental frequency obtained from the modal analysis carried on an experimental setup is then used to calibrate the DSM model by tuning the springs’ constants. The resulting natural frequency is also used to determine the 2D stability lobes diagram (SLD) for said spindle. Exploiting the presented approach and calibrated DSM model it is shown that a hypothetical 10% change in the natural frequency would result in a significant shift in the SLD of the spindle system, which should be taken into consideration to ensure chatter-free machining over the spindle’s life cycle. |
| format | Article |
| id | doaj-art-e792dd4fbc0e4fb6ad799ad453ba0806 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e792dd4fbc0e4fb6ad799ad453ba08062025-02-03T05:46:34ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/43901854390185Effects of Machine Tool Spindle Decay on the Stability Lobe Diagram: An Analytical-Experimental StudyOmar Gaber0Seyed M. Hashemi1Department of Aerospace Engineering, Ryerson University, 350 Victoria Street, Toronto, ON, M5B 2K3, CanadaDepartment of Aerospace Engineering, Ryerson University, 350 Victoria Street, Toronto, ON, M5B 2K3, CanadaAn analytical-experimental investigation of machine tool spindle decay and its effects of the system’s stability lobe diagram (SLD) is presented. A dynamic stiffness matrix (DSM) model for the vibration analysis of the OKADA VM500 machine spindle is developed and is validated against Finite Element Analysis (FEA). The model is then refined to incorporate flexibility of the system’s bearings, originally modeled as simply supported boundary conditions, where the bearings are modeled as linear spring elements. The system fundamental frequency obtained from the modal analysis carried on an experimental setup is then used to calibrate the DSM model by tuning the springs’ constants. The resulting natural frequency is also used to determine the 2D stability lobes diagram (SLD) for said spindle. Exploiting the presented approach and calibrated DSM model it is shown that a hypothetical 10% change in the natural frequency would result in a significant shift in the SLD of the spindle system, which should be taken into consideration to ensure chatter-free machining over the spindle’s life cycle.http://dx.doi.org/10.1155/2016/4390185 |
| spellingShingle | Omar Gaber Seyed M. Hashemi Effects of Machine Tool Spindle Decay on the Stability Lobe Diagram: An Analytical-Experimental Study Shock and Vibration |
| title | Effects of Machine Tool Spindle Decay on the Stability Lobe Diagram: An Analytical-Experimental Study |
| title_full | Effects of Machine Tool Spindle Decay on the Stability Lobe Diagram: An Analytical-Experimental Study |
| title_fullStr | Effects of Machine Tool Spindle Decay on the Stability Lobe Diagram: An Analytical-Experimental Study |
| title_full_unstemmed | Effects of Machine Tool Spindle Decay on the Stability Lobe Diagram: An Analytical-Experimental Study |
| title_short | Effects of Machine Tool Spindle Decay on the Stability Lobe Diagram: An Analytical-Experimental Study |
| title_sort | effects of machine tool spindle decay on the stability lobe diagram an analytical experimental study |
| url | http://dx.doi.org/10.1155/2016/4390185 |
| work_keys_str_mv | AT omargaber effectsofmachinetoolspindledecayonthestabilitylobediagramananalyticalexperimentalstudy AT seyedmhashemi effectsofmachinetoolspindledecayonthestabilitylobediagramananalyticalexperimentalstudy |