ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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12
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vol 63 / December, 2020
Article

DOI 10.17586/0021-3454-2016-59-2-164-168

UDC 621.01

ANALYSIS OF INTERNAL FRICTION FOR MATERIALS OF BELLOWS SENSING ELEMENTS OF CONTROL SYSTEMS

A. S. Kozlov
ITMO University, Department of Computer System Design and Security; Post-Graduate Student


R. Y. Labkovskaya
ITMO University; student


O. I. Pirozhnikova
ITMO University; student


V. L. Tkalich
ITMO University; Professor


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Abstract. A method for studying damped oscillations of a bellows shell in the presence of internal friction is considered. The logarithmic decrement of the oscillation is taken as a measure of internal friction at static and dynamic loading. Principles of operation of automated complex created for measuring internal friction in bellows sensing elements of control systems are described; the complex affords production of competitive and highly reliable bellows sensing elements. The complex incorporates an apparatus determining the element ability of energy scattering under vibration; a unit used to determine the energy scattering under cyclic loading of the bellows; a setup for studying damping characteristics of the bellows material under transfer vibrations and the element loading by static stretching force. The complex is also provided with an instrument for investigating the damping properties of the bellows sensing element material by damp oscillation method and the method of resonance deepening.
Keywords: bellows sensing elements, viscous friction, logarithmic decrement, internal friction, energy scattering

References:
  1. Andreeva L.E., Beseda A.I., Bogdanova Yu.A. Sil'fony. Raschet i proektirovanie (Bellows. Calculation and Design), Moscow, 1975, 156 р. (in Russ.)
  2. Vol'mir A.S., Kuranov B.A., Turbaivskiy A.T. Statika i dinamika slozhnykh struktur (Prikladnye mnogourovnevye metody issledovaniy) (Statics and Dynamics of Complex Structures (Multi-Level Applied Research Methods)), Moscow, 1989, 248 р. (in Russ.)
  3. Vol'mir A.S. Ustoychivost' deformiruemykh sistem (Stability of Deformable Systems), Moscow, 1967, 984 р. (in Russ.)
  4. Korsunov V.P. Uprugie chuvstvitel'nye elementy (statika, dinamika, nadezhnost') (Elastic Sensing Elements (Statics, Dynamics, Reliability)), Saratov, 1980, 320 р. (in Russ.)
  5. Labkovskaya R. Ya., Lysov A. L., Korobeynikov A. G. Informatsionnye tekhnologii v professional'noy deyatel'nosti i nauchnoy rabote (Information Technologies in Professional and Scientific Work), Proceedings of the Scientific and Practical Conference, Yoshkar-Ola, 2013, no. 1, pp. 176–183. (in Russ.)
  6. Labkovskaya R. Ya., Nechaeva N. V., Pirozhnikova O. I. VII Vseros. mezhvuzovskaya konf. molodykh uchenykh (VII all-Russian Interuniversity Conf. of Young Scientists), Аbstracts of Papers, St. Petersburg, ITMO University, 2010. р. 195. (in Russ.)
  7. Labkovskaya R.Ya. Al'manakh nauchnykh rabot molodykh uchenykh Universiteta ITMO (Almanac of Scientific Works of ITMO University Young Scientists), 2012, pp. 142‑144. (in Russ.)
  8. Davydov V.V., Mattes N.V. Dinamicheskie raschety prochnosti sudovykh konstruktsiy (Dynamic Strength Calculations of Ship Structures), Leningrad, 1974, 336 р. (in Russ.)
  9. Sorokin E.S. Dinamicheskiy raschet nesushchikh konstruktsiy zdaniya (Dynamic Calculation of Bearing Structures of the Building), Moscow, 1956, 340 р. (in Russ.)
  10. Labkovskaya R.Ya. 16-ya Sankt-Peterburgskaya Assambleya molodykh uchenykh i spetsialistov (16th St. Petersburg Assembly of Young Scientists and Specialists), St. Petersburg, 2011, pp. 114. (in Russ.)
  11. Labkovskaya R.Ya., Pirozhnikova O.I., Tkalich V.L. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2011, no. 1(71), pp. 136–138. (in Russ.)
  12. Labkovskaya R.Ya. Metrologiya i elektroradioizmereniya (Metrology and Electro-radio Measurements), St. Petersburg, ITMO University, 2013. 140 р. (in Russ.)
  13. Labkovskaya R.Ya. Al'manakh nauchnykh rabot molodykh uchenykh Universiteta ITMO (Almanac of Scientific Works of ITMO University Young Scientists), 2012, pp. 331–334. (in Russ.)
  14. Labkovskaya R.Ya., Tkalich V.L. Obrabotka rezul'tatov tekhnicheskikh izmereniy (Processing of the Engineering Measurement Result), St. Petersburg, 2011. 72 p. (in Russ.)
  15. Labkovskaya R.Ya., Pirozhnikova O.I. Sb. dokl. kongressa molodykh uchenykh (Proc. of Young Scientists Congress), 2012, no. 1, pp. 163–165. (in Russ.)
  16. Labkovskaya R.Ya., Tkalich V.L., Pirozhnikova O.I. Journal of Instrument Engineering, 2013, no. 3(56), pp. 21–24. (in Russ.)
  17. Labkovskaya R.Ya. Annotirovannyy sbornik nauchno-issledovatel'skikh vypusknykh kvalifikatsionnykh rabot magistrov (An Annotated Digest of the Masters Research Graduation Thesis), St. Petersburg, ITMO University, 2011, pp. 97–98. (in Russ.)
  18. Ponomarev S.D., Andreeva L.E. Raschet uprugikh elementov mashin i priborov (Calculation of Elastic Elements of Machines and Devices), Moscow, 1980, 326 р. (in Russ.)
  19. Sukharev I.P. Eksperimental'nye metody issledovaniya deformatsii i prochnosti (Experimental Techniques to Study Deformation and Strength), Moscow, 2003, 213 р. (in Russ.)