Experimental and numerical investigations of pipeline with resonator

• Autorzy: Pałczyński Tomasz , Kantyka K.

Identyfikatory

DOI

10.2478/mme-2019-0003

• Języki publikacji: EN

Abstrakty

EN

This article presents the current state of the art. regarding the use resonators in straight pipes. There is considerable need to control and reduce pressure pulsation in pipelines supplied with pulsating flows. The use of a Helmholz resonator introduces an additional degree of freedom to the analysed dynamic system. Building on previous experimental investigations by the authors, which identified the nonlinear properties of straight pipes supplied with pulsating flows, this study describes an experimental test rig, measurement methods and mechanical analogies for one (1DOF) and two (2DOF) degrees of freedom. The results are presented in the form of a 3D map of amplitude-frequency characteristics, as a function of the resonator volume determined by piston height. The dynamic properties of the described system are presented as amplitude-phase characteristics, based on a comparison of the numerical and experimental results.

Słowa kluczowe

EN

Helmholtz resonator; pipe natural frequency; double degree of freedom mechanical oscillator; pipe pulsation damping

PL

rezonatory Helmholtza; częstotliwość drgań własnych rury; generator drgań mechanicznych; tłumienie pulsacji

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 23, nr 1
• Strony: 17--22
• Opis fizyczny: Bibliogr. 18 poz., fot. kolor., rys., wykr.

Twórcy

autor

Pałczyński Tomasz

• Institute of Turbomachinery, Flow Metrology Division, Lodz University of Technology, 219/223 Wolczanska, 90-924 Lodz

autor

Kantyka K.

• Institute of Turbomachinery, Flow Metrology Division, Lodz University of Technology, 219/223 Wolczanska, 90-924 Lodz

Bibliografia

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• [3] Lan, Jun, et al. "Nonlinear effects in acoustic metamaterial based on a cylindrical pipewith ordered Helmholtz resonators." Physics Letters A 381.13 (2017): 1111-1117.
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• [10] NEWMAN, Michael James, et al. "Verification of a Duct Resonator Array for Larger Pipe Diameters." Inter-Noise. 2014.
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• [15] Pałczyński, T. Dynamic properties of pipes in different geometries with pulsating flows in transient states (sweeping up and down) under various temperature conditions, 14th International Conference “Dynamical Systems - Theory and applications - proceedings, Łódź, pp. 389-396.
• [16] Olczyk A, Investigation of the specific mass flow rate distribution in pipes supplied with a pulsating flow, International Journal of Heat and Fluid Flow, Volume 30, Issue 4, August 2009, Pages 637-646, ISSN 0142-727X, http://dx.doi.org/10.1016/j.ijheatfluidflow.2009.02.006.
• [17] Pałczyński, Tomasz, and Wojciech Rydlewicz. "Hybrid Method for Researching Pulsating Flows in Pipes Exemplified with Orifice Application." Advances in Condition Monitoring of Machinery in Non-Stationary Operations. Springer, Cham, 2018. 309-317.
• [18] Pałczyński, Tomasz. "Impact of Frequency Change Rate on Instantaneous Flow Parameters in Pipes." International Congress on Technical Diagnostic. Springer, Cham, 2016.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).