Naslov
Natural Frequences of the Combine Harvester Cylinder

Autori
Pandurović, Tomislav ; Heffer, Goran ; Emert, Rudolf

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Annals of DAAAM for 2004 & Proceedings of the 15th International DAAAM Symposium "Inteligent Manufacturing & Automation : Globalisation - Technology - Men Nature" / Katalinić, Branko - Beč : DAAAM International Vienna, 2004, 331-332

Skup
International DAAAM Symposium "Inteligent Manufacturing & Automation : Globalisation - Technology - Men Nature" (15 ; 2004)

Mjesto i datum
Beč, Austrija, 03.11.2004. - 06.11.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
combine harvester; cylinder; vibrations; frequency

Sažetak
The combine harvester cylinder vibrations were measured at grain harvest. The measured vibrations were acceleration amplitudes of the cylinder bearings. Frequency measuring analysis was conducted with fast Fourier transformation (FFT) resulting in the frequency spectrum. The most pronounced were forced vibrations of treshing technological forces (grain cylinder beat force), inertion ones (centrifugal force) and temporary resonance. Position of the resonances was registered by measuring and numerical modelling approved. The used models of the vibration systems were known for seven masses and up to fourteen freedom degrees i.e. fourteen frequences. Even the simplest models provided lower frequences as well as the frequency spectrum (FFT).

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA