Research on Effect of Decreasing Vibration with Liquid Film Damping in Precision Boring

Song, Qiang; Zhao, Zhiqiang; Xin-min, Tian; Wang, Le

doi:10.1007/s11277-017-5141-z

Cited by 1 publication

(2 citation statements)

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“…You can use the Mathlab Simulink package. The critical frequencies themselves can be calculated without the frequency response, as the square roots of the matrix eigenvalues (13) of the coefficients of the Equation (1) non-damped (ξi = 0, ai = 0) system of differential equations.…”

Section: Resultsmentioning

confidence: 99%

“…Methods of removing vibration during boring or drilling are technological and constructional. Technological methods solve cutting parameters optimization [9,10], selection of cutting medium (fluids) [13][14][15]. Construction methods include dynamic vibration absorbers (DVAs) [16], a new design of boring bars with different cross-sections has been considered and the use of new construction materials e.g., with new composite materials [17], construction adjustment of fiberglass sucker rod strings [18], the free vibration and chatter stability of a rotating thin-walled composite bar under the action of regenerative milling force have been investigated [19].…”

Section: Introductionmentioning

confidence: 99%

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Modeling of Boring Mandrel Working Process with Vibration Damper

et al. 2020

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The article considers the issue of modeling the oscillations of a boring mandrel with vibration damper connected to the mandrel with a viscoelastic coupling. A mathematical model of the boring mandrel oscillations, machine support and inertial body (damper) is developed in the form of a differential equations system. The model is made in the form of a four-mass system of connected bodies. The solution to the differential equations system was found using the finite difference method, as well as the operator method with the use of the Laplace transform. As the simulation result, it was found that the use of vibration damper can significantly reduce the amplitude of the boring mandrel natural vibrations when pulsed, and also significantly reduce the forced vibrations amplitude when exposed to periodic disturbing forces. The developed mathematical model and algorithms for the numerical solution to the differential equations allowed us to choose the optimal parameters of the boring mandrel damping element. The obtained data will be used to create a prototype boring mandrel and conduct field tests.

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Section: Resultsmentioning

confidence: 99%