THEORETICAL RESEARCH OF THE CAR EXTERNAL NOISE
DOI:
https://doi.org/10.31734/agroengineering2019.23.137Keywords:
outside car noise, noise spectrum, noise sources, calculation modelAbstract
The article studies influence of traffic noise on the psycho-emotional state of the driver. The research examined outside noise sources of the Renault Symbol car in different operating modes, and determined the frequency spectra of noise that make the most significant influence on the external environment. The developed model for determining the noise at the reference point of outside the car allows defining of the proportion of all main sources of car noise, which help to choose rational methodology for reducing the noise of the car generally. The proposed model considers transmission noise, wheel tires, and structural noise. The model allows determining the sound level for cars with front-wheel drive, where the engine and transmission make a single unit; consider the noise income through the lower front opening under the bumper and the front opening through the radiator. The model takes into account the structural noise, generated by the transmission; allows isolating of the noise from different sources, i.e. structural and air, and therefore reduces the noise of individual sources; allows estimating of the expected level of external noise of the car referring to its technical characteristics. The model supplies choice of the most rational way of achieving of the allowable standards of noise level while designing. This model can be used to calculate the external noise of not only Renault Symbol automobile, but also other mid-range passenger cars with a 1,4-1,8 l engine capacity, which can significantly reduce the costs of testing and assessing of these cars accordance to the standard requirements. The model assists in choice of the most effective ways to reduce the external noise already at the stage of car designing.
References
Balabin, I. V., Kyrov, B. А., & Laptev, S. А. (1988). Isputania avtomobilei. Моskva: Мashinostroenie.
Galevko, J. V., & Schepkin, A. I. (2014). Evropeyskoe normirovanie v oblasti ogranichenia shuma transportnuh sredstv. Zhyrnal avtomobinuh injenerov, 2(85), 6–10.
Gydcov, V. N. (2016). Sovremennyi lehkovoi avtomobil: ekologia, ekonomichnost, elektronika, ergonomika. Tendencii i perpektivu razvitia. Моskva: KNORYS.
DSTU 3649:2010. (2010). Kolisni tranportni zasoby. Vymohu bezpeky do tekhnichnoho stanu ta metody kontroliu. Vud. ofic. Kyiv: Minekonomrozvytku Ukraiiny.
Zotov, L. L. (2005). Ekologichnaia bezopastnost avtomobilei. Sankt-Peterburg: SZTU.
Karpenko, V. А. (2015). Voprosy shuma pri vzaimodeistvii shiny s dorogoi. Vestnik Harkovskogo natsionalnogo avtomobilno-dorozhnogo universiteta, 71, 109–111.
Karpenko, V. А., Levchenko, А. N., & Barannuk, I. М. (2008). Avtomobilnaia shina kak obiemnuyi izluchatel shuma. Avtomobilnyi transport, 23, 76–80.
Kachmar, R. J. (2013). Otsiniuvannia ekolohichnukh ta ekonomichnykh vtrat vid shumu transportnukh potokiv mista Lvova. Avtomobilnyi transport: doslidzhenia, 1(231), 10–13.
Lependin, L. F. (1978). Akustika. Моskva: Vyshch. shk.
Lukanin, V. N., Gudtsov, V. N., & Bocharov, N. F. (1981). Snizhenie shuma avtomobilia. Моskva: Мashinostroenie.
Luchko, І. А. (2010). Rezultaty doslidzhennia shumovoho navantazhennia na vulytsiakh, dorohakh ta prospektakh m. Kuieva. Visnyk NTUU “КPI”. Seria «Hirnytstvo», 19, 188–197.
Myroniuk, О. S. (2019). Pro dzherela zovnishnoho shumu lehkovoho avtomobilia. Problemu z transportnymy potokamy i napriamy iikh rozviazannia: tezu dop. ІІІ Vseykr. nauk.-teor. konf., 28–30 berez. 2019 r. (pp. 92–93). Drohobych: Posvit.
Myroniuk, О. S., Shevchuk, V. V., & Hrabovets, V. V. (2019). Vplyv zovnishnoho shumu lehkovoho avtomobilia na dovkillia. Suchasni tekhnolohii v mashynobuduvanni ta transporti, 1(12), 107–113.
Petrenko, О. (2013). Analiz vymoh chynnykh normatyvno-pravovykh aktiv shchodo dopustymykh rivniv shumu і vibratsii avtomobilia. Visnyk NU “Lvivska politekhnika”. Аvtomatyka vymiriuvannia ta keruvannia, 753, 152–158.
Razumovskyi, М. А. (1973). Borba s shumon na traktorakh. Мinsk: Nauka і tekhnika.
Samoiliuk, Е. P., Denydenko, V. I., & Pylypenko, А. P. (1981). Borba s shumom v naselenykh mestakh. Кyеv: Budivelnyk.
Tolskii, V. Е. (1988). Vibroakustika avtomobilia. Моskva: Мashinostroenie.
Khikling, R. (1980). Aerogidromekhanichesky shum v tekhnike. Моskva: Мir.
Mironiuk, O., & Shevchuk, V. (2017). Noise load of a car on the environment. Commission of Motorization and Energetics in Agriculture: An international journal on operation of farm and agri-food industry machinery. Lublin, 19(4), 19–23.
Mironiuk, O., & Shevchuk, V. (2018). Spectral analysis of a passenger car vehicle external noise. Commission of Motorization and Energetics in Agriculture: An international journal on operation of farm and agri-food industry machinery, 20(1), 91–94.
