Research of noise in tractor K700 cabin

• Autorzy: Pobedin A. V. , Dolotov A. A. , Iskaliev A. I. , Potapov P. V.

Identyfikatory

DOI

10.5604/12314005.1161788

• Języki publikacji: EN

Abstrakty

EN

This paper briefly describes method of noise-measuring tractor’s K700 cabin, obtained noise spectres were analysed and recommendations based on these results for noise decreasing in cabin K700 are proposed. Air noise penetrates into the tractor’s K700 cabin through panels, enclosures, apertures, chinks etc. Structural noise in the cabin is caused by vibrations transfer from sources along tractor frame through vibration isolators to cabin walls and carcass. At that, the main noise sources are engine case, air system, exhaust system, engine cooling system fan and also transmission case located under cabin floor. Every panel in the cabin has own intensity of sound waves radiation and thus contributes to forming of the sound field on the operator workspace. Therefore, it is important to know the sound pressure level near every panel into the cabin. It was state that at low frequencies, noise from left windshield prevails. In addition, in high frequencies bands the highest sound pressure issues from partition between engine area and cabin. Noise spectres have sound pressure peaks in bands with centre frequencies. Total noise level perceived by operator in tractor cabin is less during tractor motion on dirt road without aggregate than during its work with seeding machine on field prepared for winter grasp. At that, partition between engine area and cabin contributes greatly. Thus, for integrated noisiness, reducing in the tractor cabin sound isolation of partition between engine area and cabin should be increased and also sound isolation of windshields located closely to exhaust pipe has to be improved. To decrease low-frequency noise optimization of tractor cabin vibration isolation system need to be performed.

Słowa kluczowe

EN

capital repair; sound pressure level; noise total level; noise spectre; tractor; cabin; measuring

• 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: 2015
• Tom: Vol. 22, No. 1
• Strony: 261--264
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Pobedin A. V.

• Volgograd State Technical University, Russia, 400131, Volgograd Lenin Ave 28, [phone]

autor

Dolotov A. A.

• Volgograd State Technical University, Russia, 400131, Volgograd Lenin Ave 28, [phone]

autor

Iskaliev A. I.

• Volgograd State Technical University, Russia, 400131, Volgograd Lenin Ave 28, [phone]

autor

Potapov P. V.

• Volgograd State Technical University, Russia, 400131, Volgograd Lenin Ave 28, [phone]

Bibliografia

• [1] GOST 12.1.003-83. Sistema standartov bezopasnosti truda. Shum. Obshchiye trebovaniya bezopasnosti, Vzamen GOST 12.1.003-76, Mezhgosudarstvennyi standart, Standartinform, Moskva, 2013.
• [2] Ivanov, N. I., Inzhenernaya akustika. Teoriya i praktika borby s shumom, Univeritetskaya kniga, Moskva, 2008.
• [3] Pobedin, A. ., Proyektirovaniye vibroshumoizolacii traktornoy kabiny, Volgogradskoye nauchnoye izdatelstvo, VolgGTU, Volgograd, 1994.