Vehicle vibration in human health

• Autorzy: Sitnik L.J. , Magdziak-Tokłowicz M. , Wróbel R. , Kardasz P.
• Języki publikacji: EN

Abstrakty

EN

Fast development of technology over the last decades has contributed to the adverse effects that may affect human health (both physical and mental). Such negative effects may include noise and vibration. These phenomena are accompanied by most of the technological processes. Need for more efficient and productive processes is causing rising trend in intensifying of these phenomena. It is unavoidable to increase efficiency without increasing the operating speed of machinery and equipment. The main goal of this paper is to carry out NVH (noise, vibration and harshness) analysis of engines; compression-ignition engine (diesel) and spark-ignition engine (gasoline) equipped in the same type of vehicle. But purpose is laying on presented methodology, not results of researches (but of course it will be presented too) which often (mainly) is made for failure detections. This paper will also cover influence of the engine mounting on generated acoustic vibrations followed by comparative NVH analysis of states occurring in diesel and gasoline engine. Scope of the work: a) theoretical introduction, b) presentation of vibration measurement (using LDV: Laser Doppler Vibrometry), c) NVH analysis in two types of engines, d) comparison of results, e) conclusions.

Słowa kluczowe

EN

noise and vibration; laser Doppler vibrometry; digital signal processing

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2013
• Tom: Vol. 20, No. 4
• Strony: 411--418
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Sitnik L.J.

• Wroclaw University of Technology Institute of Machine Design and Operation Łukasiewicza Street 7/9, 50-371 Wroclaw, Poland tel.+ 48 713202715, fax: [phone]

autor

Magdziak-Tokłowicz M.

• Wroclaw University of Technology Institute of Machine Design and Operation Łukasiewicza Street 7/9, 50-371 Wroclaw, Poland tel.+ 48 713202715, fax: [phone]

autor

Wróbel R.

• Wroclaw University of Technology Institute of Machine Design and Operation Łukasiewicza Street 7/9, 50-371 Wroclaw, Poland tel.+ 48 713202715, fax: [phone]

autor

Kardasz P.

• Wroclaw University of Technology Institute of Machine Design and Operation Łukasiewicza Street 7/9, 50-371 Wroclaw, Poland tel.+ 48 713202715, fax: [phone]

Bibliografia

• [1] Wróbel, R., The comparation analysis of cars gasoline engine with- and non turbochargered in a new vehicles, Journal of Cimac, 2010.
• [2] Self based investigations (based on online producers catalogs).
• [3] Landau, L., Lifszic, E., Mechanika ośrodków ciagłych, PWN, Warsaw 1958.
• [4] Cempel, C., Applied vibroacustic, PWN, Warsaw 1989.
• [5] Doppler Laser Vibrometry, http://www.dipmec.unian.it/misure/strumenti/LDV.
• [6] Lyons, R. G., Understanding Digital Signal Processing, Pearson Education, 2011.
• [7] Długosz, T., Trzaska, H., Proximity Effects in the Near-Field EMF Metrology, IEEE Transactions on Instrumentation and Measurement, Vol. 58, Is. 3, March 2009.
• [8] Kaźmierczak, A., Kolanek, Cz., Wrobel, R., Polish Patent no. 211282, http://pubserv.uprp.pl/ PublicationServer/generuj_dokument.php?plik=PL_000000000211282_B1_PDF.
• [9] ISO5128:1980, Acoustic – Measurement of noise inside motor vehicles.