PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Reduction of infrasounds in machines with hydrostatic drive

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Some hazards posed by the operation of hydraulic systems, connected with low-frequency vibrations and noise are presented. Special attention is focused on infrasounds. The sources of low-frequency vibrations and noise and ways of reducing them are indicated. An original solution ensuring the effective reduction of vibrations and noise in a wide frequency range, i.e., a wide-band damper of pressure fluctuations, also performing the function of an acoustic filter, is proposed. The effectiveness of the damper was confirmed by the results of laboratory tests and tests carried out on engineering machines working in real conditions.
Słowa kluczowe
Rocznik
Strony
51--64
Opis fizyczny
Bibliogr. 34 poz., rys., tab., wykr.
Twórcy
autor
  • Department of Hydraulic Machines and Systems, Institute of Machines Design and Operation, Wrocław University of Technology, Poland
autor
Bibliografia
  • [1] KACZMARSKA A., AUGUSTYŃSKA D., WIERZEJSKI A., Infrasonic noise in driver work place, (in Polish), Bezpieczeństwo Pracy, 2006, 10, 6–8.
  • [2] ENGEL Z., Protection of environment against vibrations and noise, (in Polish), PWN, Warsaw, 2001.
  • [3] BRYAN M., Infrasounds and drivers, (in Polish), Problemy, 1972, 11, 45–48.
  • [4] RENOWSKI J., Noise: indices and evaluation criteria, (in Polish), Wrocław University of Technology Publishing House, Wrocław 1988.
  • [5] LEVENTHALL H.G., Man-made infrasound. Its occurrence and some subjective effects, Proceedings of 20th Open Seminar on Acoustics, part III, Poznań, 1973, 21–38.
  • [6] MALSEV E.N., K voprosu o vlijanii infrazvuka na organizm, Gigiena i Sanitarija, 1974, 3, 27–30.
  • [7] PAWLACZYK-ŁUSZCZYŃSKA M., AUGUSTYŃSKA D., KACZMARSKA A., Infrasonic noise. Measuring Procedure. Documentation of proposed values of permissible occupational hazard levels, (in Polish), Podstawy i Metody Oceny Środowiska Pracy, 2001, XVII, No. 2(28).
  • [8] PN-ISO 7196:2002 Acoustics – Frequency characteristics of filter for measuring infrasounds, (in Polish).
  • [9] PN-ISO 9612:2004 Acoustics – Principles of measuring and evaluating noise exposure in work environment, (in Polish).
  • [10] Ministry of Labour and Social Policy Order of 29 November 2002 concerning the highest permissible concentrations and intensities of harmful factors in work environment, (in Polish), Law Gazette No. 217, it. 1833. Fig. 18. Comparison of amplitude-frequency spectra for a system with and without chamber damper. Average pressure 15 MPa Fig. 19. Noisiness characteristic Lm = f ( pt) of jib lifting hydraulic system in loader Ł-200
  • [11] TABACZEK T., ZAWIŚLAK M., ZIELIŃSKI A., Calculation of flow with cavitation in centrifugal pump, (in Polish), Systems: Journal of Transdisciplinary Systems Science, 2012, Vol. 16(2), 385–394.
  • [12] KOLLEK W., KUDŹMA Z., MACKIEWICZ J., STOSIAK M., Possibilities of diagnosing cavitation in hydraulic systems, Archives of Civil and Mechanical Engineering, 2007, Vol. 7(1), 61–73.
  • [13] KOLLEK W., KUDŹMA Z., STOSIAK M., Propagation of vibrations of heavy engineering machine’s load-bearing components (in Polish), Transport Przemysłowy i Maszyny Robocze, 2008, Vol. 2, pp. 50 –53.
  • [14] GRAJNERT J., Vibration insulation in machines and vehicles (in Polish), Wrocław University of Technology Publishing House, Wrocław 1997.
  • [15] PYTLIK A., Vibrations in mechanized enclosure section (in Polish), Napędy i Sterowanie, 2008, 4, 11 –14.
  • [16] STOSIAK M., Effect of mechanical vibrations of foundation on pressure fluctuation in hydraulic system (in Polish), Hydraulika i Pneumatyka, 2006, 3, 5 –8.
  • [17] KUDŹMA Z., Frequency of free vibration of pressure relief valve and hydraulic system (in Polish), Sterowanie i Napęd Hydrauliczny, 1990, 3, 4 –8.
  • [18] TOMASIAK E., Selected problems of valve dynamics (in Polish), Sterowanie i Napęd Hydrauliczny, 1983, 6, 8–12.
  • [19] MISRA A., BEHDINAN K., CLEGHORN W.L., Self-excited vibration of a control valve due to fluid-structure interaction, Journal of Fluids and Structures, 2002, Vol. 5, 649–665.
  • [20] STOSIAK M., Vibration insulation of hydraulic system control components, Archives of Civil and Mechanical Engineering, 2011, Vol. 11(1), 237–248.
  • [21] CICHOŃ P., STOSIAK M., Simulator of linear hydrostatic drive in hydraulic laboratory, (in Polish), Napędy i Sterowanie, 2011, 11, 112–117.
  • [22] KOLLEK W., KUDŹMA Z., RUTAŃSKI J., STOSIAK M., Reduction of low- and high –frequency noise in hydrostatic systems,(in Polish), Przegląd Mechaniczny, 2007, 4, 26–30.
  • [23] KOLLEK W., KUDŹMA Z., RUTAŃSKI J., Noise generated by construction equipment with hydrostatic drive, (in Polish),Przegląd Mechaniczny, 2006, 1, 41–45.
  • [24] KUDŹMA Z. KOLLEK W., RUTAŃSKI J., Active damper of pressure fluctuations, (in Polish), Patent specification PL 165398.
  • [25] KOLLEK W., KUDŹMA Z., Passive und aktive Metoden der Druckpulsation und Larminderung in Hydrostatischen Systemen, Innovation und Fortschritt in der Fluidtechnik, Zweites Deutsch-Polnisches Seminar, Technische Universität Warszawa, Fakultät für Mechatronik, Institut für Automatik und Robotik, Warschau, 16.–17. September 1997, 276–294.
  • [26] KOLLEK W., KUDŹMA Z., STOSIAK M., Identification of pressure fluctuations in hydraulic system, (in Polish), Hydraulic and Pneumatic Drives and Controls 2007, International Scientific-Technical Conference, Wrocław 10–12 October 2007, SIMP Personnel Training Centre 2007, 205–217.
  • [27] ENGEL Z., SIKORA J., TURKIEWICZ J., Integrated acousticalinsulating enclosures, (in Polish), Bezpieczeństwo pracy, nauka i praktyka, 1/1999, 2–8.
  • [28] KACZMARSKA A., AUGUSTYŃSKA D., ENGEL Z., Resonator structures reducing low-frequency noise in industrial cabins, (in Polish), Bezpieczeństwo pracy, nauka i praktyka, 11/2000, 14–16.
  • [29] KUDŹMA Z., Effect of type of feeding conduits on operation of hydraulic systems, (in Polish), Hydraulic and Pneumatic Drives and Controls 2005, International Scientific-Technical Conference, Wrocław 17–19 May 2005, SIMP Training Centre 2005, 234–241.
  • [30] KUDŹMA Z., Hydrostatic drives with high-speed engine versus with low-speed engine, (in Polish), Sterowanie i Napęd Hydrauliczny, 1989, 1, 12–14.
  • [31] KUDŹMA Z., Pressure fluctuation and noise damping in hydraulic systems in transient and steady states, (in Polish), Wrocław University of Technology Publishing House, Wrocław 2012.
  • [32] KUDŹMA Z., Pressure fluctuation damper with tunable natural frequency. Factors stimulating development of machines and hydraulic systems, (in Polish), Scientific-Technical Conference Wrocław–Szklarska Poręba, 3–6 October 2001, 191–198.
  • [33] WACKER K., Schalldämpfer auslagen zum Vermindern des Lärmes von Hydraulikanlagen, Maschinenmarkt 1985.
  • [34] ORTWIG H., Experimental and analytical vibration analysis in fluid power systems, International Journal of Solids and Structures, 2005, Vol. 42, 5821–5830.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-4166f911-74db-4737-acda-45242b66ed41
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.