Suppression of machine-tool chatter by state feedback control.

Shiraishi, Masashi; Kume, Etsuo

doi:10.2493/jjspe.55.329

Cited by 4 publications

(5 citation statements)

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“…This energy supply will excite chatter. As chatter vibrations are inherent but unwanted for metal cutting many researches are aiming to analyze methods of chatter suppression [3][4][5][6][7][8][9][10][11][12][13][14][15] and chatter prediction [16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Chatter suppression in boring with tool position feedback control

Gouskov¹,

Voronov²,

Novikov³

et al. 2017

J. vibroeng.

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Regenerative self-excited vibrations (chatter) often occur in boring operation due to low stiffness of a slender cantilever holder of a tool. These vibrations lead to significant defects of a machined surface and cutting tool damages. The new chatter suppression method is proposed in the paper. Displacement signal measured in the direction which is orthogonal to machined surface is used for generating a control action in the feed direction. Linear proportional control law is applied. Mathematical model of boring process dynamics with control has been developed for validation of the proposed method efficiency and searching better values of feedback gain.

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Section: Introductionmentioning

confidence: 99%

“…The approach of sinusoidal spindle speed modulation investigated by Insperger and Stepan [4] showed better results. Shiraishi and Kume [5] were the first investigators who applied tool position control to suppress chatter. They used feedback that is proportional to vibrational displacement and vibrational velocity.…”

Section: Introductionmentioning

confidence: 99%

Chatter suppression in boring with tool position feedback control

Gouskov¹,

Voronov²,

Novikov³

et al. 2017

J. vibroeng.

View full text Add to dashboard Cite

show abstract

“…The problem analysed in this study is the appearance of chattered grinding surfaces [4]. Detection of chatter has been analysed in [5][6][7][8][9][10][11] while its removal is researched in [12][13][14][15][16][17]. Profile and surface roughness are applied as indicators of the quality of the bearing, as they affect its functional behaviour throughout their lifetime [18].…”

Section: Introductionmentioning

confidence: 99%

Vibration Analysis for Environmental Sustainability

Gomar

Carnero

López-Escobar

et al. 2014

Proceedings of the 4th World Sustainability Forum

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Predictive maintenance has a significant impact on the environmental sustainability of an organization, by means of the increase in quality of the product, which allows the consumption of raw materials to be reduced. Vibration analysis is a predictive technique especially suitable for reciprocating and rotary machines; it consists of periodically recording the vibration level of the machine, as it increases when there are anomalies such as misalignment, unbalance, etc. In the manufacture of bearings for vehicles, the final vibration of the assembled bearing is one of the quality parameters analysed to ensure that the quality of the bearings are as desired. In external grinding processes vibrations appear which are generated by the process itself and not by flaws in the machine tool. These vibrations can cause defects which affect the quality of the workpieces produced. Nevertheless, analysis of process-induced vibrations is little studied in the literature. Vibration spectra are applied to distinguish problematic vibration frequencies from those that are not. Intercomparison of spectrums between similar machines and studies of the change over time of spectra or waterfall plots are used. This method considers the possible of establishing separate vibration limits in the machining of components so as to guarantee the quality of the final assembled product. The methodology exposed can contribute to increase the environmental sustainability of an industrial organization due that contribute to a more efficient use of resources.

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“…To improve productivity and quality in machining operations, strategies have been developed and utilized in various stages of design and manufacturing (i.e., machine tool design, product design, process planning, and process control [1][2][3][4][5][6][7][8]). Typically, these strategies focus only on key subsystems (e.g., structural dynamics and spindle servo drives for chatter [11], feedservo drives for contouring control [16]) of the complete machining system.…”

Section: Introductionmentioning

confidence: 99%

Error Source Diagnostics Using a Turning Process Simulator

Chen

Ulsoy

Koren

1998

Journal of Manufacturing Science and Engineering

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To improve productivity and quality in machining, it is necessary to understand the interactions among machine tool components and the cutting process. This paper presents a model that characterizes interactions among the subsystems of a computer numerically controlled (CNC) lathe. The model is combined with a cutting force model to obtain a comprehensive turning simulator that simulates the cutting forces and part dimensions. A series of calibration experiments are proposed and implemented for process simulation. The simulation results are good when compared with experimental measurements. The interactions among the subunits of a CNC lathe and the cutting process are found to be potentially important.

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Suppression of machine-tool chatter by state feedback control.

Cited by 4 publications

References 0 publications

Chatter suppression in boring with tool position feedback control

Chatter suppression in boring with tool position feedback control

Vibration Analysis for Environmental Sustainability

Error Source Diagnostics Using a Turning Process Simulator

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