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Naboka Perm National Research Politechnic University TO THE IDENTIFICATION OF THE SELF-OSCILLATING PERIOD OF THE LIQUID LEVEL AT THE SIPHON DISCHARGING It is considered period of relaxation self-oscillations in hydraulic system known as “tantalum container” which consist of vessel with a constant inflow and outflow through a siphon. The emptying time of the vessel through the siphon is taken into account. More accurate formula for the period of self-oscillations is derived. Curves for error estimation at neglect of the emptying time of the vessel is pointed. Keywords: vessel with a constant inflow and outflow through a siphon, self-oscillating system of accumulating type, siphon discharging coefficient, time of filling of the siphon ascending branch, the emptying time of the vessel through the siphon, self-oscillating period of liquid level in a vessel. 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N&%'+3"4")##;& 7"3'+(5":&$/"& ='"/5+3#;& ,+3+:" " %&A#)5)7"". – !.: B,3-() OTF, 2008. – 245 $. 152 E )='&3&5&#"8 =&'")3+ +(%)/)5&*+#"1 .')(#- ( $)$.3& ='" "$%&:&#"" 9"3/)$%" 3. !"',+39+#+3,& O.Y., W+1/)( F.O. ?+'+3)/$; #&>%-#)1 >","/" / B#-% /)@=68%. "$$5&3. – !.; B9&($/. – 223 $. 4. !"',+39+#,+3& O.Y., E&'"@)( K.J., E)=&1/"$ !.J. G&)'"- /)5&*+#"1 ( #&>%&=')@;$5)()@ 3&5& / B#-% /)@=68%. "$$5&3. – !.; B9&($/, 2005. – 363 $. 5. J"3'+(5"/+, 7"3')@+<"#; " 7"3')='"()3;: .:&*#"/ 35- (%.,)( / G.!. W+<%+ [" 3'.]. – !.: O56-#$, 2010. – 423 $. References 1. Magnus K. Kolebaniya: Vvedenie v issledovanie kolebatelnykh sistem [The vibrations: introducrion to investigation of oscillating systems]. !oscow: Mir, 1982, 304 p. 2. Broyd I.I. Netraditsionnye gidravlicheskie prikladnye zadachi i tekhnologi [Non-traditional hydraulic applications and technology]. !oscow: OTF, 2008, 245 p. 3. Mirzadzhanadze A.Kh., Baykov V.A. Paradoksy neftyanoy fiziki [Paradoxes of oil physics]. Moscow, Institut kompyuternykh issledovaniy, 223 p. 4. Mirzadzhanzade A.Kh., Kerimov Z.G., Kopeykis M.G. Teoriya kolebaniy v neftepromyslovom dele [Theory of oscillations in the oilfield]. Moscow, Institut kompyuternykh issledovaniy, 2005, 363 p. 5. T.M. Bashta [et al.] Gidravlika, gidromashiny i gidroprivody: uchebnik dlya vtuzov [Hydraulics, hydraulic machines and hydraulic actuators: the textbook for technical universities]. !oscow: Alyans, 2010, 423 p. GB $0/(6$H >0$7)') V+"%.$)#6 N0$)(0'2 (?&'@6, 0)$$"-) – /+#3"3+% %&A#":&$/"A #+./, 3)4&#% /+>&3'; «J"3'+(5"/+ " 7"3'+(5":&$/"& @+<"#;» 2JWMC F?M ?NB?C (614990, 7. ?&'@6, E)@$)@)56$/"1 ='., 29, e-mail: ggm@pstu.ru). I$B(%$ S0,")': C'H$:+(0'2 (?&'@6, 0)$$"-) – 3)/%)' %&A#":&$/"A #+./, =')>&$$)', ,+(&3.8I"1 /+>&3')1 «J"3'+(5"/+ " 7"3'+(5":&$/"& @+<"#;» 2JWMC F?M ?NB?C (614990, 7. ?&'@6, E)@$)@)56$/"1 ='., 29, e-mail: ggm@pstu.ru). 153 O.B. E(+<#"#, X.!. N+*)/+ About the authors Kvashnin Aleksandr Ivanovich (Perm, Russian Federation) – Ph. D. in Technical Sciences, Ass. Professor, Department of Hydraulics and Hydraulic Machines, Perm National Research Polytechnic University (29, Komsomolsky av., Perm, 614990, Russian Federation, e-mail: ggm@pstu.ru). Naboka Evgeniy Mikhaylovich (Perm, Russian Federation) – Doctor of Technical Sciences, Professor, Head Department of Hydraulics and Hydraulic Machines, Perm National Research Polytechnic University (29, Komsomolsky av., Perm, 614990, Russian Federation, e-mail: ggm@pstu.ru). ?)5.:&#) 4.04.2012 154