Technologies and Engineering
Technologies and Engineering
ISSN 2786-5371 e-ISSN 2786-538X
DOI: 10.30857/2786-5371
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Author

Volodymyr Dvorzhak

PhD in Technical Sciences, Associate Professor

Kyiv National University of Technologies and Design

01011, 2 Mala Shyianovska Str., Kyiv, Ukraine

https://orcid.org/0000-0002-1693-9106

All articles

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Keywords: computer simulation; virtual model; computer experiment; sewing machine; thread takeup lever mechanism; kinetostatic analysis; reactions in kinematic pairs

Comparative analysis of technological equipment research methods on the example of force calculation of thread take-up levers of lockstitch sewing machines

Oleksandr Manoilenko, Volodymyr Dvorzhak, Andrii Hudym, Volodymyr Shkvyra, Ihor Hrytsai

https://doi.org/10.30857/2786-5371.2023.1.5

Suggested citation

Manoilenko, O., Dvorzhak, V., Hudym, A., Shkvyra, V., & Hrytsai, I. (2023). Comparative analysis of technological equipment research methods on the example of force calculation of thread take-up levers of lockstitch sewing machines. Technologies and Engineering, 24(1), 52-60. https://doi.org/10.30857/2786-5371.2023.1.5
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  • 15.02.2023
  • 433 Views
  • Technologies and Engineering - Vol. 24, No. 1, 2023
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Keywords: thread teke-up mechanism of sewing machines; sewing machines; chain stitch; classification of needle thread teke-up mechanisms; structures of needle thread teke-up mechanisms; design of sewing machines

Analytical inspection and development of a classification of needle threads teke-up mechanisms of chain stitch sewing machines

Oleksandr Manoilenko, Vasyl Horobets, Volodymyr Dvorzhak, Dmitri Pisarenko, Kateryna Bylyk

https://doi.org/10.30857/2786-5371.2022.4.3

Suggested citation

Manoilenko, O., Horobets, V., Dvorzhak, V., Pisarenko, D., & Bylyk, K. (2022). Analytical inspection and development of a classification of needle threads teke-up mechanisms of chain stitch sewing machines. Technologies and Engineering, 23(4), 35-47. https://doi.org/10.30857/2786-5371.2022.4.3
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  • 05.09.2022
  • 483 Views
  • Technologies and Engineering - Vol. 23, No. 4, 2022
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Keywords: basic knitting machine; precision mechanism; 3rd class mechanism; eye needle mechanism

Analysis of the accuracy of reproducing the position function by the mechanism of the third class for the oscillational movement of the eye needle of the bond knitting machine

Volodymyr Dvorzhak, Oleksandr Manoilenko, Evhenii Krykun, Anton Klinnikov

https://doi.org/10.30857/2786-5371.2022.2.2

Suggested citation

Dvorzhak, V., Manoilenko, O., Krykun, E., & Klinnikov, A. (2022). Analysis of the accuracy of reproducing the position function by the mechanism of the third class for the oscillational movement of the eye needle of the bond knitting machine. Technologies and Engineering, 23(2), 21-29. https://doi.org/10.30857/2786-5371.2022.2.2
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  • 22.06.2022
  • 362 Views
  • Technologies and Engineering - Vol. 23, No. 2, 2022
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Keywords: fourth class mechanism, fourth class structural group, eye needle mechanism, basic knitting machine

Application of the fourth class mechanism for drive ear needles of the basic binding machine

Volodymyr Dvorzhak

https://doi.org/DOI:10.30857/1813-6796.2020.3.1

Suggested citation

Dvorzhak, V. (2020). Application of the fourth class mechanism for drive ear needles of the basic binding machine. Technologies and Engineering, 21(3), 15-24. https://doi.org/DOI:10.30857/1813-6796.2020.3.1
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  • 30.06.2020
  • 368 Views
  • Technologies and Engineering - Vol. 22, No. 3, 2020
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Keywords: force analysis, third-class mechanism, mechanism of eye needles, warp knitting machine

Power analysis of the mechanism of the pumping movement of the earth needles of basic knitting machines

Volodymyr Dvorzhak

https://doi.org/DOI:10.30857/1813-6796.2019.3.3

Suggested citation

Dvorzhak, V. (2019). Power analysis of the mechanism of the pumping movement of the earth needles of basic knitting machines. Technologies and Engineering, 20(3), 26-35. https://doi.org/DOI:10.30857/1813-6796.2019.3.3
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  • 25.06.2019
  • 350 Views
  • Technologies and Engineering - Vol. 20, No. 3, 2019
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Keywords: mechanism of material movement, structural synthesis, kinematic synthesis, hinge parallelogram

Development and synthesis of a new mechanism of a seat machine transport

Vasyl Horobets, Volodymyr Dvorzhak

https://doi.org/10.30857/1813-6796.2018.5.3

Suggested citation

Horobets, V., & Dvorzhak, V. (2018). Development and synthesis of a new mechanism of a seat machine transport. Technologies and Engineering, 2018(5), 31-39. https://doi.org/10.30857/1813-6796.2018.5.3
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  • 24.10.2018
  • 404 Views
  • Technologies and Engineering - Vol. 19, No. 5, 2018
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Keywords: dynamics of mechanisms, rocker mechanism of thread take-up, sewing machine

Analytical study of the dynamics of typical milling mechanisms of technological machines of light industry

Volodymyr Dvorzhak

https://doi.org/10.30857/1813-6796.2018.3.1

Suggested citation

Dvorzhak, V. (2018). Analytical study of the dynamics of typical milling mechanisms of technological machines of light industry. Technologies and Engineering, 19(3), 9-18. https://doi.org/10.30857/1813-6796.2018.3.1
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  • 26.06.2018
  • 360 Views
  • Technologies and Engineering - Vol. 19, No.3, 2018
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Keywords: warp - knitting machine, the mechanism of the changed structure of a needle, metric synthesis, guide needle

Metrical synthesis of guided needles of changeable structure is in warp – knitting machine

V. Kotlyarov, Volodymyr Dvorzhak

Suggested citation

Kotlyarov, V., & Dvorzhak, V. (2017). Metrical synthesis of guided needles of changeable structure is in warp – knitting machine. Technologies and Engineering, 18(6), 35-41.
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  • 20.12.2017
  • 282 Views
  • Technologies and Engineering - Vol. 18, No. 6, 2017