4 research outputs found

    Π”Π˜ΠΠΠœΠ˜Π§Π•Π‘ΠšΠ˜Π• ΠœΠžΠ”Π•Π›Π˜ ΠŸΠ ΠžΠ¦Π•Π‘Π‘Π Π“ΠžΠ Π―Π§Π•Π“Πž Π’Π«Π’Π―Π“Π˜Π’ΠΠΠ˜Π― ΠŸΠžΠ›Π˜Π­Π€Π˜Π ΠΠžΠ“Πž Π’ΠžΠ›ΠžΠšΠΠ

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    The paper considers modeling of dynamics on hot extrusion process for polyester fibre. New modifications of nonlinear dynamic models are have been proposed in the paper. The models in contrast with the known ones make it possible to take into account an effect of tensile stress magnitude and duration of its application on temperature of the hot extrusion, in order to achieve the desired values of strength and relative elongations of the polyester fibre. The proposed models are applicable for efficient solution of problems on synthesis of combined control systems for regulation of hot extrusion temperature.РассмотрСна Π·Π°Π΄Π°Ρ‡Π° модСлирования Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ процСсса горячСго вытягивания полиэфирного Π²ΠΎΠ»ΠΎΠΊΠ½Π°. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ‹ Π½ΠΎΠ²Ρ‹Π΅ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ Π½Π΅Π»ΠΈΠ½Π΅ΠΉΠ½Ρ‹Ρ… динамичСских ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π² ΠΎΡ‚Π»ΠΈΡ‡ΠΈΠ΅ ΠΎΡ‚ извСстных ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‚ ΡƒΡ‡Π΅ΡΡ‚ΡŒ влияниС Π²Π΅Π»ΠΈΡ‡ΠΈΠ½Ρ‹ Ρ€Π°ΡΡ‚ΡΠ³ΠΈΠ²Π°ΡŽΡ‰Π΅Π³ΠΎ напряТСния ΠΈ ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ Π΅Π³ΠΎ прилоТСния Π½Π° Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Ρƒ горячСго вытягивания, для достиТСния Π·Π°Π΄Π°Π½Π½Ρ‹Ρ… Π·Π½Π°Ρ‡Π΅Π½ΠΈΠΉ прочности ΠΈ ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… ΡƒΠ΄Π»ΠΈΠ½Π΅Π½ΠΈΠΉ полиэфирного Π²ΠΎΠ»ΠΎΠΊΠ½Π°. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Π΅ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΏΡ€ΠΈΠΌΠ΅Π½ΠΈΠΌΡ‹ для эффСктивного Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π·Π°Π΄Π°Ρ‡ΠΈ синтСза ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… систСм рСгулирования Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Ρ‹ горячСго вытягивания

    ΠœΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ двиТСния ΠΏΠ»Π΅Π½ΠΊΠΈ Π½Π° Π°Π³Ρ€Π΅Π³Π°Ρ‚Π΅ ΠΏΠΎ производству ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎ-ΠΏΠ»Π΅Π½ΠΎΡ‡Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ²

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    New effective dynamic models for motion of polymeric film have been proposed in the paper. These models in contrast to known ones take in to account deformation processes which occur at a unit for polymer-film materials production. It has been shown that the deformation process of a polΡƒmer film in intersectional area determined by its tension depends on ratio of linear section velocities and tension and deformation values in these sections. An analysis of the proposed dynamic models of polymer film motion has shown that a decrease in its deformations in every zone of the unit can be achieved both by changing ratio of input and output velocities and introducing a compensator for perturbing influences due to deformations of the film at the entrance to the zone. Possible channels for automatic control of the unit for polymer-film material production have been identified with the aim of improving quality of products. While using the proposed dynamic models it has been demonstrated that it is necessary to apply systems for automatic measuring of section rotation speed and film tension in the unit for polymer-film material production in order to ensure effective control over an extrusion process. The proposed dynamic model can be efficiently used to create an adaptive system which is applied to control a multi-motor drive of the unit for of polymer-film material production.ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ‹ Π½ΠΎΠ²Ρ‹Π΅ эффСктивныС динамичСскиС ΠΌΠΎΠ΄Π΅Π»ΠΈ двиТСния ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎΠΉ ΠΏΠ»Π΅Π½ΠΊΠΈ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π² ΠΎΡ‚Π»ΠΈΡ‡ΠΈΠ΅ ΠΎΡ‚ извСстных ΡƒΡ‡ΠΈΡ‚Ρ‹Π²Π°ΡŽΡ‚ процСссы протСкания Π΄Π΅Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ Π½Π° Π°Π³Ρ€Π΅Π³Π°Ρ‚Π΅ ΠΏΠΎ производству ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎ-ΠΏΠ»Π΅Π½ΠΎΡ‡Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ². ΠžΡ‚ΠΌΠ΅Ρ‡Π΅Π½ΠΎ, Ρ‡Ρ‚ΠΎ процСсс Π΄Π΅Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎΠΉ ΠΏΠ»Π΅Π½ΠΊΠΈ Π² мСТсСкционной Π·ΠΎΠ½Π΅, опрСдСляСмый Π΅Π΅ натяТСниСм, зависит ΠΎΡ‚ ΡΠΎΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΡ Π»ΠΈΠ½Π΅ΠΉΠ½Ρ‹Ρ… скоростСй сСкций ΠΈ Π²Π΅Π»ΠΈΡ‡ΠΈΠ½ натяТСний ΠΈ Π΄Π΅Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΉ Π² этих сСкциях. Анализ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Ρ… динамичСских ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ двиТСния ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎΠΉ ΠΏΠ»Π΅Π½ΠΊΠΈ ΠΏΠΎΠΊΠ°Π·Π°Π», Ρ‡Ρ‚ΠΎ сниТСниС Π΅Π΅ Π΄Π΅Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΉ Π² ΠΊΠ°ΠΆΠ΄ΠΎΠΉ Π·ΠΎΠ½Π΅ Π°Π³Ρ€Π΅Π³Π°Ρ‚Π° ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ достигнуто ΠΊΠ°ΠΊ ΠΏΡƒΡ‚Π΅ΠΌ измСнСния ΡΠΎΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΡ скоростСй Π½Π° Π²Ρ…ΠΎΠ΄Π΅ Π² Π·ΠΎΠ½Ρƒ ΠΈ Π²Ρ‹Ρ…ΠΎΠ΄Π΅ ΠΈΠ· Π½Π΅Π΅, Ρ‚Π°ΠΊ ΠΈ Π²Π²Π΅Π΄Π΅Π½ΠΈΠ΅ΠΌ компСнсатора Π²ΠΎΠ·ΠΌΡƒΡ‰Π°ΡŽΡ‰ΠΈΡ… воздСйствий, обусловлСнных дСформациями ΠΏΠ»Π΅Π½ΠΊΠΈ Π½Π° Π²Ρ…ΠΎΠ΄Π΅ Π² Π·ΠΎΠ½Ρƒ. ΠšΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΡ Π²Π΅Π»ΠΈΡ‡ΠΈΠ½Ρ‹ натяТСния ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎΠΉ ΠΏΠ»Π΅Π½ΠΊΠΈ Π² ΠΊΠ°ΠΆΠ΄ΠΎΠΉ Π·ΠΎΠ½Π΅ Π°Π³Ρ€Π΅Π³Π°Ρ‚Π° ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ осущСствлСна ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΡΠΎΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΡ скоростСй Π½Π° Π²Ρ…ΠΎΠ΄Π΅ Π² Π·ΠΎΠ½Ρƒ ΠΈ Π²Ρ‹Ρ…ΠΎΠ΄Π΅ ΠΈΠ· Π½Π΅Π΅, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ натяТСния ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎΠΉ ΠΏΠ»Π΅Π½ΠΊΠΈ Π½Π° Π²Ρ…ΠΎΠ΄Π΅ Π² Π·ΠΎΠ½Ρƒ ΠΈ частичной компСнсациСй Π²ΠΎΠ·ΠΌΡƒΡ‰Π΅Π½ΠΈΠΉ, обусловлСнных дСформациями Π½Π° Π²Ρ…ΠΎΠ΄Π΅ Π² Π·ΠΎΠ½Ρƒ. ВыявлСны Π²ΠΎΠ·ΠΌΠΎΠΆΠ½Ρ‹Π΅ ΠΊΠ°Π½Π°Π»Ρ‹ автоматичСского управлСния Π°Π³Ρ€Π΅Π³Π°Ρ‚ΠΎΠΌ ΠΏΠΎ производству ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎ-ΠΏΠ»Π΅Π½ΠΎΡ‡Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ² с Ρ†Π΅Π»ΡŒΡŽ ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½ΠΈΡ качСства ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΠΈ. На основС ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Ρ… динамичСских ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, Ρ‡Ρ‚ΠΎ для эффСктивного управлСния процСссом вытягивания Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎ ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡ‚ΡŒ систСмы автоматичСского измСрСния скоростСй вращСния сСкций Π°Π³Ρ€Π΅Π³Π°Ρ‚Π° ΠΏΠΎ производству ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎ-ΠΏΠ»Π΅Π½ΠΎΡ‡Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ² ΠΈ натяТСния ΠΏΠ»Π΅Π½ΠΊΠΈ. ДинамичСская модСль ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ эффСктивно использована ΠΏΡ€ΠΈ создании Π°Π΄Π°ΠΏΡ‚ΠΈΠ²Π½ΠΎΠΉ систСмы управлСния ΠΌΠ½ΠΎΠ³ΠΎΠ΄Π²ΠΈΠ³Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ элСктроприводом Π°Π³Ρ€Π΅Π³Π°Ρ‚Π° ΠΏΠΎ производству ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎ-ΠΏΠ»Π΅Π½ΠΎΡ‡Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ² с Ρ†Π΅Π»ΡŒΡŽ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ прочности ΠΏΠ»Π΅Π½ΠΊΠΈ ΠΈ сниТСния Π΅Π΅ удлинСния

    DYNAMIC MODELS FOR HOT-EXTRUSION OF POLYESTER FIBRE

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    The paper considers modeling of dynamics on hot extrusion process for polyester fibre. New modifications of nonlinear dynamic models are have been proposed in the paper. The models in contrast with the known ones make it possible to take into account an effect of tensile stress magnitude and duration of its application on temperature of the hot extrusion, in order to achieve the desired values of strength and relative elongations of the polyester fibre. The proposed models are applicable for efficient solution of problems on synthesis of combined control systems for regulation of hot extrusion temperature

    Dynamics Modelling of Film Motion at Unit for of Polymeric Film Material Production

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    New effective dynamic models for motion of polymeric film have been proposed in the paper. These models in contrast to known ones take in to account deformation processes which occur at a unit for polymer-film materials production. It has been shown that the deformation process of a polуmer film in intersectional area determined by its tension depends on ratio of linear section velocities and tension and deformation values in these sections. An analysis of the proposed dynamic models of polymer film motion has shown that a decrease in its deformations in every zone of the unit can be achieved both by changing ratio of input and output velocities and introducing a compensator for perturbing influences due to deformations of the film at the entrance to the zone. Possible channels for automatic control of the unit for polymer-film material production have been identified with the aim of improving quality of products. While using the proposed dynamic models it has been demonstrated that it is necessary to apply systems for automatic measuring of section rotation speed and film tension in the unit for polymer-film material production in order to ensure effective control over an extrusion process. The proposed dynamic model can be efficiently used to create an adaptive system which is applied to control a multi-motor drive of the unit for of polymer-film material production
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