Own fluctuations of technological systems

Ershov, D Y; Zlotnikov, E. G.; Nestorovski, B.

doi:10.1088/1742-6596/1399/2/022055

Cited by 6 publications

(4 citation statements)

References 8 publications

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“…In many well-known works [3][4][5][6][7][8][9][10][11][12][13][14][15] when studying the behavior of technological system of mechanical processing, the cutting force is given in a quasi-static state. As a result, the non-stationary nature of the plastic deformation process, determined by the properties of the material being machined and having a significant impact on chip formation processes, is not taken into account.…”

Section: Methodsmentioning

confidence: 99%

Preliminary Local Thermal Impact as a Surface Quality Assurance Factor

Timofeev

Khalimonenko

Nacharova

2021

MSF

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The article considers the issues of assuring the quality of the surfaces of machine parts by applying a preliminary local thermal impact before their edge cutting machining. In the zone of application of local thermal impact, a zone of metastable structure with respect to the material of the workpiece to be treated occurs. When the cutting plane intersects with the local thermal application line, the formed flow chip is segmented. The created graphs allow assigning of local thermal modes to the surface of the workpiece before edge cutting machining. Application of preliminary local thermal impact will assure the specified quality of the surface of the treated workpiece at semi-finishing and finishing edge cutting machining modes and stable segmentation of the flow chip.

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Section: Methodsmentioning

confidence: 99%

Preliminary Local Thermal Impact as a Surface Quality Assurance Factor

Timofeev

Khalimonenko

Nacharova

2021

MSF

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“…The magnetic flux acts on the abrasive particle by applying a magnetic force to the magnetic particles that hold the abrasive particle. Due to this effect, the normal force Fn and the tangential force Ft are formed, which are responsible for the indentation of the abrasive particle into the workpiece and the removal of material [13][14][15]. Schematically, the magnetic fluxes that arise in the working gap during the processing of a spherical surface with a flat inductor consisting of successively alternating permanent magnets and pole pieces are shown in Figure 3.…”

Section: Magnetic Fluxmentioning

confidence: 99%

Technological assurance of the quality of processing of products from aluminum alloys with a complex geometric shape using magnetic abrasive processing

2021

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In the presented article, the issue of the implementation of magnetic abrasive processing is considered in order to ensure the quality of surfaces of complex shapes of parts made of corrosion-resistant aluminum alloys. The implementation was carried out through theoretical and experimental research. In a theoretical study, the features of processing corrosion-resistant aluminum alloys, existing and possible schemes for magnetic-abrasive processing of surfaces of complex geometric shapes, including a combination of various working movements of the workpiece and pole pieces, are considered. In an experimental study, the dependence of the quality of the processed surface (roughness) on the size of the working gap between the workpiece and the working pole was determined. The result of the research is the determination of the optimal treatment schemes for surfaces with a complex geometric shape, as well as the derived exponential dependence of the change in surface roughness on the size of the working gap.

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“…Analysis and description of the drive in acceleration mode requires determining the static mechanical parameter of the motor [1,2,7], with the moment of load considered a constant. The above system can be reduced to one equation in relation to ω m .…”

Section: Mathematical Modelingmentioning

confidence: 99%

Mathematical modeling of drive transitive process with linear change in control input

2021

Proceedings of the III International Workshop on Modeling, Information Processing and Computing (MIP: Computing-2021)

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The paper researches into dynamic parameters of transitive processes in electrical drive of technological equipment in acceleration mode given changes in control input under law of linearity. Analysis of two-mass dynamic model allows for solutions of differential equations describing three stages in the drive acceleration mode. Dynamic and static components of drive errors are discussed in relation to its velocity as being conditioned on the moment of load, the total moment of the drive inertia, stiffness ratio of static parameter and pre-defined programmed acceleration.

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Own fluctuations of technological systems

Cited by 6 publications

References 8 publications

Preliminary Local Thermal Impact as a Surface Quality Assurance Factor

Preliminary Local Thermal Impact as a Surface Quality Assurance Factor

Technological assurance of the quality of processing of products from aluminum alloys with a complex geometric shape using magnetic abrasive processing

Mathematical modeling of drive transitive process with linear change in control input

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