The Influence of Spindle Speed Variation on the Suppression of Self‐Oscillations During Turning.
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| Title: | The Influence of Spindle Speed Variation on the Suppression of Self‐Oscillations During Turning. |
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| Authors: | Tryshyn, Pavlo1 (AUTHOR), Vnukov, Yuriy1 (AUTHOR), Kozlova, Olena1 (AUTHOR) kozlova@zp.edu.ua, Li, Shuang1 (AUTHOR) shuangli@hit.edu.cn |
| Source: | Shock & Vibration. 7/5/2026, Vol. 2026, p1-10. 10p. |
| Subjects: | Self-induced vibration, Machining, Vibration (Mechanics), High-speed machining, Oscillations |
| Abstract: | This paper presents the results of a study examining the effect of the spindle speed variation (SSV) mode on the suppression of self‐oscillations (chatter) during turning. Particular attention is paid to analyzing the effectiveness of the SSV mode for various types of self‐oscillations (regenerative, tangential, and coupled). Experimental studies revealed that SSV affects different chatter mechanisms unequally. The amplitude of regenerative self‐oscillations decreased only by 1.2...1.62 times, indicating the high stability of the regenerative feedback mechanism under variable spindle speed conditions. In contrast, tangential self‐oscillations were suppressed significantly more effectively, with amplitude reductions reaching 3.66...4.61 times. Coupled self‐oscillations were also effectively suppressed: the vibration amplitude along the X axis decreased by 1.5...1.62 times, while along the Z axis it decreased by 2.24...2.5 times. This behavior is associated with the direct influence of SSV on instantaneous cutting speed. The obtained results confirm that regenerative self‐oscillations are highly stable and are the most difficult to suppress during turning. Therefore, to effectively dampen regenerative self‐oscillations, it is necessary to use additional methods, for example, an enlarged wear area on the flank surface of the cutter. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | This paper presents the results of a study examining the effect of the spindle speed variation (SSV) mode on the suppression of self‐oscillations (chatter) during turning. Particular attention is paid to analyzing the effectiveness of the SSV mode for various types of self‐oscillations (regenerative, tangential, and coupled). Experimental studies revealed that SSV affects different chatter mechanisms unequally. The amplitude of regenerative self‐oscillations decreased only by 1.2...1.62 times, indicating the high stability of the regenerative feedback mechanism under variable spindle speed conditions. In contrast, tangential self‐oscillations were suppressed significantly more effectively, with amplitude reductions reaching 3.66...4.61 times. Coupled self‐oscillations were also effectively suppressed: the vibration amplitude along the X axis decreased by 1.5...1.62 times, while along the Z axis it decreased by 2.24...2.5 times. This behavior is associated with the direct influence of SSV on instantaneous cutting speed. The obtained results confirm that regenerative self‐oscillations are highly stable and are the most difficult to suppress during turning. Therefore, to effectively dampen regenerative self‐oscillations, it is necessary to use additional methods, for example, an enlarged wear area on the flank surface of the cutter. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 10709622 |
| DOI: | 10.1155/vib/9747083 |
