Vibration stability criterion in assessing the dynamic quality and limiting capabilities of machine tools

Shvetsov, I. V.; Vasilkov, D. G.; Tarikov, I.Ya.

doi:10.1088/1757-899x/656/1/012049

Cited by 2 publications

(1 citation statement)

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“…At the second stage of acceleration mode (t > τ ), the representative point moves along the curve asymptotically approaching point A. Phase trajectory provides graphic representation of the electric It should be also noted that the model discussed makes no allowance for the effects of internal losses caused by friction and possible production faults in the elements and components of the machinery drive mechanisms [9][10][11][12].…”

Section: Discussionmentioning

confidence: 99%

Dynamic Properties of Technological Drive Operating in Acceleration Mode

Ershov

Lukyanenko

Zlotnikov

2021

Electromechanics and Robotics

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The study centers on dynamic transients resulting from jump-like changes in controller of machinery electrical drive. Discussion requires description of dynamic processes in various operation modes-acceleration, deceleration, reversing, and transition between different angular velocities given DC and AC engines momentums conditioned on angular velocity values. Conditions in which technological drives operate necessitate relevant transient modes aiming either to provide for maximization of operation speeds, or minimization of losses, or limitation of dynamic loads generated in components of kinematic chains which link electric drive and working element, etc. Control of transient processes in the electric drive guarantees maximum operation speeds and equipment performance given specific limitations. On the basis of the dynamic drive model with two degrees of freedom, the different stages of the run-up mode were analyzed. The characteristics of the static component of torque on the shaft in steady mode and the dynamic component caused by the transient process are determined. The ways of reduction of the dynamic component significant for the drive operation are offered.

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Section: Discussionmentioning

confidence: 99%