NVH application research using accelerometers on a chassis dynamometer

• Autorzy: Sitnik L. , Wróbel R. , Andrych-Zalewska M. , Mihaylov V.

Identyfikatory

DOI

10.5604/12314005.1216392

• Języki publikacji: EN

Abstrakty

EN

Accelerometric tests, similarly to laser tests (with regard to human health) are something of novelty. All standards related to this issue refer to sound intensity (measured using specialised microphones). The work presents results of accelerometric tests conducted during driving cycles on an inertial load chassis dynamometer Maha LPS3000. The object of the research was Mazda 3 1.6 (petrol), built in 2010, mileage 70 thousand km. The tests were related to vibration measurements on a chassis dynamometer using various, forced tractive effort (300, 500 and 700 N). No additional signal processing was used (except for operations necessary to create a spectrum) so as to present the whole vibration spectrum with special emphasis on the resonance frequency of human organs. The article presents vibration amplitude measured at the level of the headrest for three forced tractive efforts: 300, 500 and 700 N. The measurements were made at the speed of 60 km/h in the fourth gear (which corresponds to about 2000 rpm). The obtained results, indicate that the maximum value of harmonics fall in the range 85-95 Hz. Hence, they are resonance frequencies of eyeballs. In addition to this, one can state that the values of these harmonics are higher for higher values of forced tractive efforts. This would mean that seats should be additionally stabilised (dampened) to limit the influence of dangerous vibration on a human organism.

Słowa kluczowe

EN

NVH; LDV; chassis dynamometer

• 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: 2016
• Tom: Vol. 23, No. 3
• Strony: 443--448
• Opis fizyczny: Biblogr. 9 poz., rys.

Twórcy

autor

Sitnik L.

• Wroclaw University of Technology, Department Vehicle Engineering I. Łukaszewicza Street 7/9, 50-371 Wroclaw, Poland Tel. [phone]

autor

Wróbel R.

• Wroclaw University of Technology, Department Vehicle Engineering I. Łukaszewicza Street 7/9, 50-371 Wroclaw, Poland Tel. [phone]

autor

Andrych-Zalewska M.

• Wroclaw University of Technology, Department Vehicle Engineering I. Łukaszewicza Street 7/9, 50-371 Wroclaw, Poland Tel. [phone]

autor

Mihaylov V.

• Technical University of Varna 1 Studentska Str., 9010 Varna, Bulgaria

Bibliografia

• [1] Carden, F., Jedlicka, R., Henry, R., Telemetry System Engineering, Artech Hause INC, Norwood, 2002.
• [2] Cempel, C., Wibroakustyka stosowana, PWN, Warszawa 1989.
• [3] Cempel, C., Diagnostyka wibroakustyczna maszyn, Wyd. Politechniki Poznańskiej, Poznan, 1985.
• [4] De Silva, C., Vibrations Fundamentals and Practice, CRC Press, NY 2000.
• [5] Myszkowski, S., Diagnostyka Pokładowa, Instalator Polski, Warszawa 2001.
• [6] Panter, P. F., Modulation Noise and Spectral Analysis, McGraw Hill, NY 1965.
• [7] Parochański, J., Miernictwo elektryczne i elektroniczne, WSiP, Warszawa 2006.
• [8] Singiresu, S. R., Mechanical Vibrations, Prentice Hall, Singapore 2005.
• [9] www.pcb.com.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.