Vibrations Produced by Electric Shakers for Olive Harvesting
作者： E Cerruto , G Manetto , G Schillaci
DOI:
关键词:
摘要: The paper reports the results of some experimental tests aimed at evaluating effects several manual electric shakers for olive harvesting on vibrations transmitted to handarm system. Three heads, different number and arrangement operating tools oscillating system, each applied three types bars, material (carbon fibres aluminium), diameter (35 40 mm) length (2010 2210 mm), were considered. measured in two points, next hand positions bar working conditions, varying inclinations (vertical, inclined about 45 degrees, horizontal). To smooth influence external factors, machines idle operated by same person. main show that global accelerations are quite high (about 20 m/s 2 ) comparable with those when using mechanic or pneumatic machines, mechanism head affect accelerations, carbon fibre provide a significant reduction respect aluminium (16.3 vs. 21.2 ), inclination does not vibration level, greater than handgrip (21 16 ).
ragusashwa.it 参考文章(8)
G. Vassalini, M. Biocca, L. Fornaciari, Noise risk evaluation in electrical hand-held picking machines for olive harvesting. Agricultural and biosystems engineering for a sustainable world. International Conference on Agricultural Engineering, Hersonissos, Crete, Greece, 23-25 June, 2008.. ,(2008)
K.N. Dewangan, V.K. Tewari, Characteristics of vibration transmission in the hand–arm system and subjective response during field operation of a hand tractor Biosystems Engineering. ,vol. 100, pp. 535- 546 ,(2008) , 10.1016/J.BIOSYSTEMSENG.2008.05.002
V.K. Tewari, K.N. Dewangan, Effect of vibration isolators in reduction of work stress during field operation of hand tractor Biosystems Engineering. ,vol. 103, pp. 146- 158 ,(2009) , 10.1016/J.BIOSYSTEMSENG.2009.03.002
L. Burström, The influence of biodynamic factors on the mechanical impedance of the hand and arm International Archives of Occupational and Environmental Health. ,vol. 69, pp. 437- 446 ,(1997) , 10.1007/S004200050172
R.G. Dong, T.W. McDowell, D.E. Welcome, W.P. Smutz, Correlations between biodynamic characteristics of human hand–arm system and the isolation effectiveness of anti-vibration gloves International Journal of Industrial Ergonomics. ,vol. 35, pp. 205- 216 ,(2005) , 10.1016/J.ERGON.2004.08.009
I C. Chetter, The hand arm vibration syndrome: a review Cardiovascular Surgery. ,vol. 6, pp. 1- 9 ,(1997) , 10.1016/S0967-2109(97)00090-2
Roberto Deboli, Angela Calvo, The use of a capacitive sensor matrix to determine the grip forces applied to the olive hand held harvesters. Agricultural Engineering International: The CIGR Journal. ,vol. 11, ,(2009)
G. Vassalini, M. Cecchini, D. Monarca, Vibrations transmitted to hand-arm by the main chainsaw models sold in the Italian market Rivista di Ingegneria Agraria (Italy). ,(2003)