Stability analysis of machine tool spindle under uncertainty

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Abstract

Chatter is a harmful machining vibration that occurs between the workpiece and the cutting tool, usually resulting in irregular flaw streaks on the finished surface and severe tool wear. Stability lobe diagrams could predict chatter by providing graphical representations of the stable combinations of the axial depth of the cut and spindle speed. In this article, the analytical model of a spindle system is constructed, including a Timoshenko beam rotating shaft model and double sets of angular contact ball bearings with 5 degrees of freedom. Then, the stability lobe diagram of the model is developed according to its dynamic properties. The Monte Carlo method is applied to analyse the bearing preload influence on the system stability with uncertainty taken into account.

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APA

Dou, W., He, X., & Tang, B. (2016). Stability analysis of machine tool spindle under uncertainty. Advances in Mechanical Engineering, 8(5), 1–11. https://doi.org/10.1177/1687814016646265

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