Effect of Rotation Speed and Eccentricity on Dynamic Movement Characteristics of BTA Deep-Hole Boring Bar

Wu Zhao; Chao Fan Sun; Zhan Qi Hu

doi:10.4028/www.scientific.net/AMM.518.258

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 518Effect of Rotation Speed and Eccentricity on...

Effect of Rotation Speed and Eccentricity on Dynamic Movement Characteristics of BTA Deep-Hole Boring Bar

Abstract:

Since the actual boring bar physical system is characteristic of strong nonlinear, it is difficult to apply analytic method to solve. For studying the effect of dynamic characteristics induced by speed changing and eccentricity, simulations are completed for bifurcation of displacement with the variable rotation speed, no matter whether there exists cutting force. It is shown that with the speed increasing, the system's dynamic characteristic become complicated, namely, the dynamic periodic motion varieties from single, multiple to quasi periodic in turn. Analogously, eccentricity leads to the increase of the complexity of systems dynamic characteristics. The periodic motion also transforms from single, quasi, triple to quasi periodic in sequence. The cutting force variation plays an importance role on the movement stability of the system.

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Periodical:

Applied Mechanics and Materials (Volume 518)

Pages:

258-263

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.518.258

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Online since:

February 2014

Authors:

Wu Zhao*, Chao Fan Sun, Zhan Qi Hu

Keywords:

Axis Path Diagram, BTA Deep-Hole Boring, Displacement Bifurcation, Dynamic Movement Characteristics, Poincare Perception Mapping

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* - Corresponding Author

References

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