NOISE PRODUCED ON THE TRACTOR AT DIFFERENT AGROTEHNICAL BASES IN RELATION TO WORK HOURS OF THE TRACTOR

Abstract

U radu su prikazani rezultati mjerenja buke traktora LANDINI POWERFARM DT100A. Mjerenje buke obavljeno je na tri različite agrotehničke podloge, a to su makadamska, asfaltna i travnata podloga tijekom 2015. i 2016. godine. Mjerenje je obavljeno uređajem proizvođača METREL tipa Multinorm MI 620I EU. Isto je obavljeno prema normi HRN ISO 6396 koji se odnosi na mjerenje buke s lijeve i desne strane rukovatelja, pri čemu se traktor kretao oko 7,5 km/h, te prema normi HRN ISO 5131, koja nalaže kako se uređaj postavlja u odnosu na referentnu točku sjedala rukovatelja od sredine glave rukovatelja do razine sjedala na visini 790 ±20 mm i odmaknut od sredine glave 200±20 mm s lijeve i desne strane. Iz rezultata je vidljivo kako ispitivani traktor najveću razinu buke proizvodi na makadamskoj površini, dok najmanju razinu buke proizvodi na travnatoj površini. Također se utvrdilo kako je razina buke koju proizvodi ispitivani traktor manja od 90 dB, prema tome, pretpostavka je kako kod ispitivanog traktora ne postoji opasnost od oštećenja sluIn this work are shown measurement results of noise of tractor LANDINI POWERFARM DT100A. Noise was measured on three different agrotehnical bases – macadam base, asphaltic base and grassy base, during the 2015 – 2016. The measurement is made with device brand METREL type Multinorm MI 620I EU. Noise measurement was made according to the HRN ISO 6396 norm, which refers to the noise measurement from the left and the right side of the handler, where the tractor drove 7,5 km/h. The measurement is also made according to HRN ISO 5131, in which the device must be in relation to a reference point of the seat of the handler to the level of the seat at a height 790 ± 20 mm, and away from the middle of the head 200±20 from the left and the right side. In these results we can see that analyzed tractor the highest level of the noise produces on macadam surface, while the lowest level of the noise produces on a grassy surface. We can also see that the noise produced by this tractor is less than 90 dB, and therefore, we can assume that with this tractor there is no risk of hearing impairment and it is not necessary to wear protective equipment