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Purpose: The article contains the results of research and development of a system for active noise damping of an automobile engine. The proposed system of active noise suppression can significantly reduce the sound pressure level in the frequency band up to 500 Hz. The robotic principle of the developed system is based on the addition of an additional buffer tank with a variable volume in the silencer system. The use of high-temperature sensors with strain gauges based on silicon microcrystals to obtain information on the parameters of sound vibrations arising during the exhaust gas outflow made it possible to create a control system for changing the volume of the buffer tank. The results of testing the proposed system of active noise suppression of an internal combustion engine are presented. Design/methodology/approach: The active noise suppression system based on the Helmholtz resonator used tools to control general noise levels, experimental tests, complex mathematical modelling of acoustic processes in Solidworks, taking into account the conditions of propagation and attenuation of sound energy by intermediate closed volumes. Findings: The use of an additional resonator chamber with variable volume in the exhaust muffler of the internal combustion engine allowed to reduce the resonant phenomena in the zone of low-frequency pulsations of exhaust gas pressure from 57 Hz to 43 Hz at frequency drift in the range of 310… 350 Hz, which significantly improved its noise characteristics. Research limitations/implications: For further research, to improve the characteristics of the active noise suppression system, it is advisable to consider the use of several in in transient modes of engine operation. Practical implications: The developed design of active noise reduction is simpler in comparison with analogs and allows reducing the noise of exhaust gases in a low-frequency range. Originality/value: To reduce the noise, a variable-volume Helmholtz resonator was used, the efficiency of which is provided by high-temperature sensors of the original design.
Wydawca
Rocznik
Tom
Strony
35--41
Opis fizyczny
Bibliogr. 13 poz.
Twórcy
autor
- Department of Automotive Engineering, Lviv Polytechnic National University, Bandera Str. 12, Lviv, 79013, Ukraine
autor
- Department of Semiconductor Electronics, Lviv Polytechnic National University, Bandera Str. 12, Lviv, 79013, Ukraine
autor
- Department of Civil Safety, Lviv Polytechnic National University, Bandera Str. 12, Lviv, 79013, Ukraine
autor
- National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Department of Information and Measurement Technologies, Peremohy Ave., 37, Kyiv, 03056, Ukraine
autor
- d National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Department of Information and Measurement Technologies, Peremohy Ave., 37, Kyiv, 03056, Ukraine
Bibliografia
- [1] M.L. Munjal, Analysis and design of pod silencers, Journal of Sound and Vibration 262/3 (2003) 497-507. DOI: https://doi.org/10.1016/S0022-460X(03)00108-1
- [2] A.I. Komkin, I.N. Kulichev, V.A. Sukhorukov, Analysis of the acoustic characteristics of noise mufflers, Scientific and Technical Achievements and Advanced Experience in the Automotive Industry 7 (1991) 9-12 (in Russian).
- [3] D. Potente, General design principles for an automotive muffler, Proceedings of ACOUSTICS 2005 Conference, Busselton, Australia, 2005, 153-158.
- [4] A.V. Vasiliev, Acoustic modelling and integrated noise reduction of automobile internal combustion engines, Monograph, Publishing House of the Samara Scientific Centre of the Russian Academy of Sciences, Samara, 2004 (in Russian).
- [5] A.V. Vasiliev, Reducing low-frequency noise and vibration of power and power plants, Mechanics and Mechanical Engineering 5/2 (2003) 419-429 (in Russian).
- [6] N.I. Ivanov, Engineering acoustics. Theory and practice of noise control: textbook, 4th Edition Revised and Enlarged, Logos, 2015 (in Russian).
- [7] S.P. Alekseev, A.M. Kazakov, N.N. Kolotilov, Struggle with noise and vibration in mechanical engineering, Mechanical engineering, 1970 (in Russian).
- [8] A.A. Lubyanchenko, Approximate physical and mathematical models of gas-dynamic and aeroacoustics processes in mufflers for exhaust noise from internal combustion engines. Noise Theory and Practice ½ (2015) 72-83 (in Russian).
- [9] A. Druzhinin, A. Kutrakov, E. Lavitska, I. Maryamova, High temperature pressure sensors based on silicon microcrystals, Proceedings of the 6th International Conference "Theory and Technology of Transmission, Reception and Processing of Information", Tuapse, Russia, Kharkov (in Russian).
- [10] A. Druzhinin, I. Maryamova, A. Kutrakov, N. Lyakh-Kaguy, Thread-like crystals of silicon for sensor electronics, Physics and Chemistry of Solid Body 12/4 (2011) 1078-1084 (in Ukrainian).
- [11] W.A. Altabey, M. Noori, L. Wang, Using ANSYS for Finite Element Analysis. Vol. 1. A Tutorial for Engineers, Momentum Press, New York, 2018.
- [12] A.O. Druzhinin, I.Y. Maryamova, O.P. Kutrakov, Sensors of mechanical values based on thread-like crystals of silicon, germanium and А3В5 compound, Lviv University of Technology Publishing House, Lviv, 2015 (in Ukrainian).
- [13] A.A. Ned, A.D. Kurtz, G. Beheim, F. Masheeb, S. Stefanescu, Improved SiC Leadless Pressure Sensors For High Temperature, Low and High Pressure Applications. Kulite Semiconductor Products, Inc., Proceedings of the 21st Transducer Workshop, Lexington, Maryland, 2004.
Typ dokumentu
Bibliografia
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