logo logo
Українською English

Вхід

Логін
Пароль
Зареєструватися 

Корисні посилання

tntu logo
 
GoogleScholarLogo
 
 
logo


Investigation of oscillatory displacement of the hydraulic presses moving parts during their braking in the upper initial position

НазваInvestigation of oscillatory displacement of the hydraulic presses moving parts during their braking in the upper initial position
Назва англійськоюInvestigation of oscillatory displacement of the hydraulic presses moving parts during their braking in the upper initial position
АвториOlena Korchak (https://orcid.org/0000-0002-2163-7196)
ПринадлежністьDonbas National Academy of Civil Engineering and Architecture, Kramatorsk, Ukraine
Бібліографічний описInvestigation of oscillatory displacement of the hydraulic presses moving parts during their braking in the upper initial position / Olena Korchak // Scientific Journal of TNTU. — Tern. : TNTU, 2020. — Vol 99. — No 3. — P. 66–74.
Bibliographic description:Korchak O. (2020) Investigation of oscillatory displacement of the hydraulic presses moving parts during their braking in the upper initial position. Scientific Journal of TNTU (Tern.), vol 99, no 3, pp. 66–74.
DOI: https://doi.org/10.33108/visnyk_tntu2020.03.066
УДК

621.979:681.5

Ключові слова

hydraulic press, ram, oscillations, pressure, control valve, overrun, braking, counterbalance cylinder.

The investigations revealed that, despite the usage of individual servo drive of the inlet valve of return cylinders, ram overrun upwards after its being shut down which is accompanied by intensive oscillatory phenomena is inevitable. By analyzing the experimental diagrams it is stated that the existing mechanism of ram braking in upper starting position is unacceptable from the point of view of fast and non-impact process realization, as well as the accuracy of stoppage. The mathematical model of ram damped oscillations in the upper position after the inlet valve of return cylinders shut down, which takes into account the parameters of oscillatory system consisting of ram and fluid masses in power and return cylinders, is developed. A numerical analysis of the developed mathematical model established that when using counterbalance cylinders in press design, the period of oscillations increases with decreasing the amplitude. Besides, the complete damping of the oscillations occurs earlier than in the case of counterbalance cylinders absence.

ISSN:2522-4433
Перелік літератури
  1. Billur E. Chapter 12: Hydraulic Presses. Sheet Metal Forming Fundamentals. ASM International, 2012. Vol. 21. P. 181–201.
  2. Zhongwei L., Yingjian D., Xinliang L. Research on simulation of giant forging hydraulic press decoupling control for synchronous control system. Research journal of applied sciences, engineering and technology. 2013. Vol. 6 (4). P. 568–574.
  3. Z. Ouchiha, J. C. Loraud, A. Ghezal, M. Kessal and other An investigation of highly pressurized transient fluid flow in pipelines. International Journal of Pressure Vessels and Piping. Elsevier. 2012. Vol. 92. P. 106–114.
  4. Baumann Hans D. Control valve primer: a user’s guide. The Instrumentation, Systems and Automation Society (ISA), 2009. 171 p.
  5. Ivanov G. M., Sveshnikov V. K. Osnovnye napravlenija razvitija sovremennogo gidroprivoda. Oborudovanie i instrument dlja professionalov: metalloobrabotka. 2013. №4. Р. 14–20.
  6. Korchak E. S. Matematicheskoe modelirovanie kak osnova sozdanija sistemy jeffektivnogo tormozhenija podvizhnoj poperechiny gidravlicheskogo pressa v verhnem polozhenii. Vestnik Samarskogo gosudarstvennogo tehnicheskogo universiteta. Serija: Fiziko-matematicheskie nauki: sb. nauch. tr. Samara: SamGTU. 2012. No.1 (26). P. 192–197.
  7. Іskovich-Lotoc'kij R. D., Obertjuh R. R., Polіshhuk O. V. Vikoristannja gіdroіmpul'snogo privodu v obladnannі pererobnih virobnictv: monografіja. Vіnnicja: VNTU, 2013. 116 p.
  8. Korchak O. S. Nova metodyka eksperymentalʹnykh doslidzhenʹ avtomatyzovanykh system keruvannya hidravlichnymy presamy. Promyslova hidravlika i pnevmatyka. 2018. No. 2 (60). P. 48–54.
  9. Korchak E. S. Decompression Dynamics of High-Pressure Hydraulic Cylinders. Russian Engineering Research. 2012. Vol. 32. No. 9–10. P. 623–626. Springer article's personal. DOI: 10.3103/ S1068798X12070143.
  10. Babii A., Babii M. Taking impact of oscillation amplitude of bearing frame sections of boom sprayers into account on its resource. Scientific Journal of TNTU. Tern.: TNTU, 2019. Vol. 95. No. 3. P. 97–104. DOI: 10.33108/visnyk_tntu2019.03
  11. Bezverhyi O., Grigoryeva L., Grigoryev S. Resonance radial oscillations of a piezoceramic cylinders and spheres taking into account electromechanical losses. Scientific Journal of TNTU. Т.: ТНТУ, 2016. Т. 81. No. 1. Р. 41–48.
  12. Pat. 116975 Ukraini, MPK B30B15/00, B30B15/14. Sposіb roboti gіdravlіchnih presіv na holostih hodah; zajavnik ta patentovlasnik Donbas'ka derzhavna mashinobudіvna akademіja (DDMA). № 201613467; zajavl. 27.12.2016; opubl. 12.06.2017, Bjul. № 11.
References:
  1. Billur E. Chapter 12: Hydraulic Presses. Sheet Metal Forming Fundamentals. ASM International, 2012. Vol. 21. P. 181–201.
  2. Zhongwei L., Yingjian D., Xinliang L. Research on simulation of giant forging hydraulic press decoupling control for synchronous control system. Research journal of applied sciences, engineering and technology. 2013. Vol. 6 (4). P. 568–574.
  3. Z. Ouchiha, J. C. Loraud, A. Ghezal, M. Kessal and other An investigation of highly pressurized transient fluid flow in pipelines. International Journal of Pressure Vessels and Piping. Elsevier. 2012. Vol. 92. P. 106–114.
  4. Baumann Hans D. Control valve primer: a user’s guide. The Instrumentation, Systems and Automation Society (ISA), 2009. 171 p.
  5. Ivanov G. M., Sveshnikov V. K. Osnovnye napravlenija razvitija sovremennogo gidroprivoda. Oborudovanie i instrument dlja professionalov: metalloobrabotka. 2013. №4. Р. 14–20.
  6. Korchak E. S. Matematicheskoe modelirovanie kak osnova sozdanija sistemy jeffektivnogo tormozhenija podvizhnoj poperechiny gidravlicheskogo pressa v verhnem polozhenii. Vestnik Samarskogo gosudarstvennogo tehnicheskogo universiteta. Serija: Fiziko-matematicheskie nauki: sb. nauch. tr. Samara: SamGTU. 2012. No.1 (26). P. 192–197.
  7. Іskovich-Lotoc'kij R. D., Obertjuh R. R., Polіshhuk O. V. Vikoristannja gіdroіmpul'snogo privodu v obladnannі pererobnih virobnictv: monografіja. Vіnnicja: VNTU, 2013. 116 p.
  8. Korchak O. S. Nova metodyka eksperymentalʹnykh doslidzhenʹ avtomatyzovanykh system keruvannya hidravlichnymy presamy. Promyslova hidravlika i pnevmatyka. 2018. No. 2 (60). P. 48–54.
  9. Korchak E. S. Decompression Dynamics of High-Pressure Hydraulic Cylinders. Russian Engineering Research. 2012. Vol. 32. No. 9–10. P. 623–626. Springer article's personal. DOI: 10.3103/ S1068798X12070143.
  10. Babii A., Babii M. Taking impact of oscillation amplitude of bearing frame sections of boom sprayers into account on its resource. Scientific Journal of TNTU. Tern.: TNTU, 2019. Vol. 95. No. 3. P. 97–104. DOI: 10.33108/visnyk_tntu2019.03
  11. Bezverhyi O., Grigoryeva L., Grigoryev S. Resonance radial oscillations of a piezoceramic cylinders and spheres taking into account electromechanical losses. Scientific Journal of TNTU. Т.: ТНТУ, 2016. Т. 81. No. 1. Р. 41–48.
  12. Pat. 116975 Ukraini, MPK B30B15/00, B30B15/14. Sposіb roboti gіdravlіchnih presіv na holostih hodah; zajavnik ta patentovlasnik Donbas'ka derzhavna mashinobudіvna akademіja (DDMA). № 201613467; zajavl. 27.12.2016; opubl. 12.06.2017, Bjul. № 11.
Завантажити

Всі права захищено © 2019. Тернопільський національний технічний університет імені Івана Пулюя.