{"id":1923,"date":"2021-01-16T20:43:29","date_gmt":"2021-01-16T18:43:29","guid":{"rendered":"http:\/\/journals.khnu.km.ua\/vestnik\/?p=1923"},"modified":"2021-04-22T13:03:56","modified_gmt":"2021-04-22T10:03:56","slug":"%d1%80%d0%be%d0%b7%d1%80%d0%be%d0%b1%d0%ba%d0%b0-%d1%96-%d0%b0%d0%bd%d0%b0%d0%bb%d1%96%d0%b7-%d1%82%d0%be%d1%87%d0%bd%d0%be%d1%81%d1%82%d1%96-%d1%96%d0%bd%d0%b6%d0%b5%d0%bd%d0%b5%d1%80%d0%bd%d0%b8","status":"publish","type":"post","link":"https:\/\/journals.khnu.km.ua\/vestnik\/?p=1923","title":{"rendered":"\u0420\u043e\u0437\u0440\u043e\u0431\u043a\u0430 \u0456 \u0430\u043d\u0430\u043b\u0456\u0437 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0456 \u0456\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u0438\u0445 \u043c\u0435\u0442\u043e\u0434\u0456\u0432 \u0440\u043e\u0437\u0440\u0430\u0445\u0443\u043d\u043a\u0443 \u0433\u0435\u0440\u043c\u0435\u0442\u0438\u0447\u043d\u043e\u0441\u0442\u0456 \u0431\u0435\u0437\u0437\u043c\u0430\u0449\u0443\u0432\u0430\u043b\u044c\u043d\u0438\u0445 \u0446\u0438\u043b\u0456\u043d\u0434\u0440\u043e-\u043f\u043e\u0440\u0448\u043d\u0435\u0432\u0438\u0445 \u0443\u0449\u0456\u043b\u044c\u043d\u0435\u043d\u044c \u0434\u043b\u044f \u043c\u043e\u043b\u0435\u043a\u0443\u043b\u044f\u0440\u043d\u043e\u0433\u043e \u0442\u0430 \u043f\u0435\u0440\u0435\u0445\u0456\u0434\u043d\u043e\u0433\u043e \u0440\u0435\u0436\u0438\u043c\u0456\u0432 \u043f\u0435\u0440\u0435\u0442\u0456\u043a\u0430\u043d\u043d\u044f \u0433\u0430\u0437\u0443"},"content":{"rendered":"

\u0420\u041e\u0417\u0420\u041e\u0411\u041a\u0410 \u0406 \u0410\u041d\u0410\u041b\u0406\u0417 \u0422\u041e\u0427\u041d\u041e\u0421\u0422\u0406 \u0406\u041d\u0416\u0415\u041d\u0415\u0420\u041d\u0418\u0425 \u041c\u0415\u0422\u041e\u0414\u0406\u0412 \u0420\u041e\u0417\u0420\u0410\u0425\u0423\u041d\u041a\u0423 \u0413\u0415\u0420\u041c\u0415\u0422\u0418\u0427\u041d\u041e\u0421\u0422\u0406 \u0411\u0415\u0417\u0417\u041c\u0410\u0429\u0423\u0412\u0410\u041b\u042c\u041d\u0418\u0425 \u0426\u0418\u041b\u0406\u041d\u0414\u0420\u041e-\u041f\u041e\u0420\u0428\u041d\u0415\u0412\u0418\u0425 \u0423\u0429\u0406\u041b\u042c\u041d\u0415\u041d\u042c \u0414\u041b\u042f \u041c\u041e\u041b\u0415\u041a\u0423\u041b\u042f\u0420\u041d\u041e\u0413\u041e \u0422\u0410 \u041f\u0415\u0420\u0415\u0425\u0406\u0414\u041d\u041e\u0413\u041e \u0420\u0415\u0416\u0418\u041c\u0406\u0412 \u041f\u0415\u0420\u0415\u0422\u0406\u041a\u0410\u041d\u041d\u042f \u0413\u0410\u0417\u0423<\/p>\n

DEVELOPMENT AND ANALYSIS OF THE ACCURACY OF ENGINEERING METHODS FOR CALCULATING THE TIGHTNESS OF GREASE-FREE CYLINDER-PISTON SEALS FOR MOLECULAR AND TRANSIENT GAS FLOW MODES<\/p>\n

<\/a> \u0421\u0442\u043e\u0440\u0456\u043d\u043a\u0438: 20-23. \u041d\u043e\u043c\u0435\u0440: \u21166, 2019 (279)<\/strong>
\n\u0410\u0432\u0442\u043e\u0440\u0438: <\/strong>
\n\u041e.\u0413. \u0422\u0418\u041c\u041e\u0429\u0423\u041a
\n\u0425\u043c\u0435\u043b\u044c\u043d\u0438\u0446\u044c\u043a\u0438\u0439 \u043d\u0430\u0446\u0456\u043e\u043d\u0430\u043b\u044c\u043d\u0438\u0439 \u0443\u043d\u0456\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442
\nO.G. TYMOSHCHUK
\nKhmelnytsky\u0456 National University
\nDOI:<\/strong> https:\/\/www.doi.org\/10.31891\/2307-5732-2019-279-6-20-23<\/a>
\n\u0420\u0435\u0446\u0435\u043d\u0437\u0456\u044f\/Peer review :<\/strong> 15.11.2019 \u0440.
\n\u041d\u0430\u0434\u0440\u0443\u043a\u043e\u0432\u0430\u043d\u0430\/Printed :<\/strong> 1.01.2020 \u0440.<\/p>\n

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\n\u041a\u043b\u044e\u0447\u043e\u0432\u0456 \u0441\u043b\u043e\u0432\u0430: \u043a\u043e\u043d\u0442\u0430\u043a\u0442; \u043d\u043e\u043c\u0456\u043d\u0430\u043b\u044c\u043d\u0438\u0439 \u043a\u043e\u043d\u0442\u0430\u043a\u0442\u043d\u0438\u0439 \u0442\u0438\u0441\u043a;\u00a0 \u043f\u0438\u0442\u043e\u043c\u0430 \u043f\u043b\u043e\u0449\u0430 \u0448\u043e\u0440\u0441\u0442\u043a\u043e\u0457 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u0456 \u043a\u043e\u043d\u0442\u0430\u043a\u0442\u0443;\u00a0\u00a0 \u0433\u0435\u0440\u043c\u0435\u0442\u0438\u0447\u043d\u0456\u0441\u0442\u044c \u0446\u0438\u043b\u0456\u043d\u0434\u0440\u043e-\u043f\u043e\u0440\u0448\u043d\u0435\u0432\u0438\u0445 \u0443\u0449\u0456\u043b\u044c\u043d\u0435\u043d\u044c; \u0442\u0440\u0438\u0432\u0430\u043b\u0456\u0441\u0442\u044c \u043f\u043b\u0438\u043d\u0443 \u0433\u0430\u0437\u0443; \u043c\u043e\u043b\u0435\u043a\u0443\u043b\u044f\u0440\u043d\u0438\u0439 \u0442\u0430 \u043f\u0435\u0440\u0435\u0445\u0456\u0434\u043d\u0438\u0439 \u0440\u0435\u0436\u0438\u043c\u0438 \u043f\u0435\u0440\u0435\u0442\u0456\u043a\u0430\u043d\u043d\u044f \u0433\u0430\u0437\u0443; \u043f\u0440\u043e\u0444\u0456\u043b\u043e\u0433\u0440\u0430\u043c\u0430, \u0442\u0435\u043e\u0440\u0456\u044f \u0441\u0442\u043e\u0445\u0430\u0441\u0442\u0438\u0447\u043d\u0438\u0445 \u043f\u043e\u043b\u0456\u0432.<\/p>\n

\u0420\u043e\u0437\u0448\u0438\u0440\u0435\u043d\u0430 \u0430\u043d\u043e\u0442\u0430\u0446\u0456\u044f \u0430\u043d\u0433\u043b\u0456\u0439\u0441\u044c\u043a\u043e\u044e \u043c\u043e\u0432\u043e\u044e<\/strong><\/p>\n

On the basis of the theory of stochastic processes, methods for calculating the tightness of grease-free cylinder-piston seals for molecular and transition modes of gas flow have been developed. The result is the creation of engineering methods for calculating the leakage (duration of gas leakage) in greaseless cylinder-piston metal-polymer seals, as well as the estimation of the accuracy of the created methods for molecular and transient modes of gas flow through greaseless cylinder-piston. The article deals with the elastic contact of a strongly anisotropic rough surface (polymer surface) with a smooth (metal) surface. The task is to develop engineering methods for calculating the tightness of grease-free cylinder-piston seals for molecular and transient modes of gas flow, as well as to analyse the accuracy of the developed methods. The dependence of the combined gas leakage on a set of contact conditions based on stochastic field theory is investigated. The estimation of the error which occurs at replacement of the exact formula of calculation of the consolidated inflow by the approximate formula is made. Values calculated by the exact and calculated summary inflow formula differ by no more than 4 percent. Precise methods for calculating the tightness of the grease-free cylinder-piston seals for the molecular and transient modes of the gas flow are theoretically substantiated and developed, which is the basis for practical calculations of the tightness of the seals of grease-free pneumatic compressors. Transient leakage gas flows can be found based on the values calculated for the viscosity and molecular modes of the gas flow through the greaseless piston seals.
\nKeywords:<\/strong> contact; nominal contact pressure; specific area of rough contact surface; tightness of cylinder-piston seals; duration of gas flow; molecular and transient gas flow modes; profilogram, stochastic field theory.<\/p>\n

References<\/strong><\/p>\n

    \n
  1. Makushkin A.P. Issledovanie germetichnosti razemnyh soedinenij pri kriogennyh temperaturah \/ A.P. Makushkin, I.V. Kragelskij, N.M. Mihin \/\/ Trenie i iznos. \u2013 1988. \u2013 \u2116 2. \u2013 S. 197\u2013206.<\/li>\n
  2. Tymoshchuk O.H. Rozrobka metodiv rozrakhunku ta eksperymentalnoho doslidzhennia hermetychnosti bezzmashchuvalnykh tsylindro-porshnevykh ushchilnen : dys. \u2026 kand. tekhn. nauk \/ O.H. Tymoshchuk \u2013 Khmelnytskyi, 2003. \u2013 386 s.<\/li>\n
  3. Makushkin A.P. Nauchno-tehnicheskie osnovy sozdaniya polimernyh uplotnenij i uzlov treniya oborudovaniya kriogennyh sistem : dis. … d-ra tehn. nauk \/ A.P. Makushkin \u2013 Balashiha, 1982. \u2013 511 s.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

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