Open AccessASSESSMENT OF DYNAMIC FEATURES OF MECHANICAL OSCILLATORS FOR A ROOT-BALLING MACHINE WITH A VIBRATING BLADE
Author(s) -
Dario Friso,
Marco Bietresato
Publication year - 2009
Publication title -
journal of agricultural engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.3
H-Index - 18
eISSN - 2239-6268
pISSN - 1974-7071
DOI - 10.4081/ija.2009.4.1
Subject(s) - blade (archaeology) , torque , displacement (psychology) , forcing (mathematics) , simple harmonic motion , mathematics , amplitude , root (linguistics) , harmonic , engineering , mechanical engineering , control theory (sociology) , acoustics , computer science , physics , classical mechanics , mathematical analysis , artificial intelligence , psychology , linguistics , philosophy , control (management) , quantum mechanics , psychotherapist , thermodynamics
A theoretical analysis of the oscillating motion produced by a mechanical oscillator for the vibrating blade of a root-balling machine was carried out. The result was harmonic motion with a strong phase displacement with respect to the forcing torque of the eccentric masses; however, the amplitude can be approximately calculated by in-air motion analysis. Experiments were also carried out in order to determine the cutting torque of the blade in typical treenursery soil. These results, together with the indications of other literature reports, were used to propose a possible design directive