{"id":4641,"date":"2021-03-12T13:57:17","date_gmt":"2021-03-12T11:57:17","guid":{"rendered":"http:\/\/journals.khnu.km.ua\/vestnik\/?p=4641"},"modified":"2021-03-17T12:24:49","modified_gmt":"2021-03-17T10:24:49","slug":"%d0%be%d1%86%d1%96%d0%bd%d0%ba%d0%b0-%d1%82%d0%be%d1%87%d0%bd%d0%be%d1%81%d1%82%d1%96-%d0%bc%d0%b5%d1%82%d0%be%d0%b4%d1%83-%d1%80%d0%be%d0%b7%d1%80%d0%b0%d1%85%d1%83%d0%bd%d0%ba%d1%83-%d0%b3%d0%b5","status":"publish","type":"post","link":"https:\/\/journals.khnu.km.ua\/vestnik\/?p=4641","title":{"rendered":"\u041e\u0446\u0456\u043d\u043a\u0430 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0456 \u043c\u0435\u0442\u043e\u0434\u0443 \u0440\u043e\u0437\u0440\u0430\u0445\u0443\u043d\u043a\u0443 \u0433\u0435\u0440\u043c\u0435\u0442\u0438\u0447\u043d\u043e\u0441\u0442\u0456 \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 \u0432\u2019\u044f\u0437\u043a\u0456\u0441\u043d\u043e\u0433\u043e \u0440\u0435\u0436\u0438\u043c\u0443 \u043f\u0435\u0440\u0435\u0442\u0456\u043a\u0430\u043d\u043d\u044f \u0433\u0430\u0437\u0443"},"content":{"rendered":"

<\/p>\n

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EVALUATION OF ACCURACY OF THE METHOD\u00a0 OF CALCULATIONS OF GAS TIGHTNESS OF CYLINDER-PISTON SEALS FOR VISCOUS GAS FLOW REGIME<\/p>\n

\"\"<\/a> \u0421\u0442\u043e\u0440\u0456\u043d\u043a\u0438: 291-295. \u041d\u043e\u043c\u0435\u0440: \u21165, 2020 (289)<\/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. TYMOSHCHUK
\nKhmelnytskyi National University
\nDOI:<\/strong> https:\/\/www.doi.org\/10.31891\/2307-5732-2020-289-5-291-295<\/a>
\n\u0420\u0435\u0446\u0435\u043d\u0437\u0456\u044f\/Peer review :<\/strong> 26.10.2020 \u0440.
\n\u041d\u0430\u0434\u0440\u0443\u043a\u043e\u0432\u0430\u043d\u0430\/Printed :<\/strong> 27.11.2020 \u0440.<\/p>\n

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\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

Based on the theory of stochastic processes, a method for calculating the tightness of non-lubricating cylinder-piston seals for the viscous regime of gas flow has been developed. The result is the development of an engineering method for calculating the tightness (duration of gas leakage) in non-greasy cylinder-piston metal-polymer seals, as well as assessing the accuracy of the developed method for the viscous regime of gas flow through cylinder-piston seals. The article considers the elastic contact of a strongly anisotropic rough surface (polymer surface) with a smooth (metal) surface. The dependence of the consolidated gas flow on the complex of contact conditions on the basis of the theory of stochastic fields is investigated. An estimate of the error that occurs when replacing the exact formula for calculating the consolidated inflow with an approximate formula. The values calculated according to the exact and calculated formula of the consolidated inflow differ by no more than 6 percent. Theoretically substantiated and developed accurate methods for calculating the tightness of non-lubricating cylinder-piston seals for the viscous regime of gas flow are the basis for practical calculations of the tightness of the seals of non-lubricating compressors. Leakage during the transient gas flow regime can be found on the basis of the values calculated for the viscosity and molecular regimes of the gas flow through the cylinder-piston seals.
\nKeywords:<\/strong> contact; stochastic field theory; nominal contact pressure; specific area of the rough contact surface; tightness of cylinder-piston seals; duration of gas flow; viscous and transient gas flow regimes.<\/p>\n

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

    \n
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  6. Timoshchuk O.G. Development of methods for calculation and experimental study of the tightness of non-lubricating cylinder-piston seals: dis. \u2026 \u0441 tech. Sciences \/ O.G. Timoshchuk \u2013 Khmelnitsky, 2003. \u2013 386 p.<\/li>\n<\/ol>\n

    <\/h4>\n

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