Certificate of Registration Media number Эл #ФС77-53688 of 17 April 2013. ISSN 2308-6033. DOI 10.18698/2308-6033
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On the influence of the profile of the check valve on the dynamic characteristics of the actuator

Published: 10.11.2014

Authors: Prudnikov S.N.

Published in issue: #8(32)/2014

DOI: 10.18698/2308-6033-2014-8-1303

Category: Engineering | Chapter: Fluid Mechanics and Hydraulic Machines

Unbalanced forces and torques occur in pneumatic and hydraulic actuating devices with large nominal diameters and significant pressure drop on the shaft of regulators. That causes the necessity of using drives with enlarged power. It is necessary to significantly reduce the unbalanced forces and moments on the shaft of the throttle and rotary valves when using membrane actuators to improve the amplitude-frequency and phase response, as well as quality factor of automatic control systems. In the process it is expedient to use profiled regulators. The article presents results of experimental investigation of compacted disks on aerodynamic test bench, torque characteristics, allowing for application of pneumatic and hydraulic actuators with significantly decreased power, as well as practical recommendations on profiling drives of the throttle and check valves of the swing type.

[1] Romanenko N.T., Kulikov Yu.F. Kriogennaya armatura [Cryogenic fittings]. Moscow, Mashinostroenie Publ., 1998, 110 p.
[2] Belyakov V.P. Kriogennaya tekhnika i tekhnologiya [Cryogenic Engineering and Technology]. Moscow, Energoatomizdat Publ., 1982, 272 p.
[3] Demikhov K.E., Panfilov Yu.V., Nikulin N.K. Vakuumnaya tekhnika. Spravochnik [Vacuum Equipment. Handbook]. 3rd ed., rev. and enl. Moscow, Mashinostroenie Publ., 2009, 590 p.
[4] Popov D.N. Dinamika i regulirovanie gidro- i pnevmosistem [Dynamics and regulation of hydraulic and pneumatic systems]. Sbornik nauchnykh trudov Mezhdunarodnogo simpoziuma po izmeritelnym informatsionnym sistemam [Collection of scientific papers of the International symposium for measuring information systems], Kazan, 5-7 December, 2006. Moscow, Kraus Publ., 2006, pp. 152-159.
[5] Pupkov K.A., Egupov N.D., ed. Nestatsionarnye sistemy avtomaticheskogo upravleniya [Nonstationary automatic control systems]. Moscow, BMSTU Publ., 2007, 632 p.
[6] Popov D.N., ed. Gidromekhanika [Hydromechanics]. 3rd ed., corrected. Moscow, BMSTU Publ., 2014, 317 p.
[7] Nazemtsev A.S. Gidravlicheskie i pnevmaticheskie sistemy [Hydraulic and Pneumatic systems]. Chast’ 1. Pnevmaticheskie privody i sredstva avtomatizatsii [Part 1. Pneumatic drives and automation means]. Moscow, Forum Publ., 2004, 240 p.
[8] Nazemtsev A.S. Gidravlicheskie i pnevmaticheskie sistemy [Hydraulic and Pneumatic systems]. Chast’ 2. Pnevmaticheskie privody i sistemy. Osnovy [Part 1. Pneumatic drives and systems. Basic foundation.]. Moscow, Forum Publ., 2007, 250 p.
[9] Makarov A.N., Sherman Ya.Ya. Raschet drosselnykh ustroistv [Calculation of throttling devices]. Moscow, Metallurgizdat Publ., 1953.
[10] Nazemtsev A.S. Pnevmaticheskie i gidravlicheskie privody i sistemy [Pneumatic and hydraulic drives and systems]. Omsk, OmSTU Publ., 2008, 88 p.
[11] Nikitin O.F. Gidravlika i gidropnevmoprivod [Hydraulic and Pneumatic Fluid Power]. Moscow, BMSTU Publ., 2010, 414 p.