Vibration and impulsivity analysis of hand held olive beaters

Deboli, Roberto; Calvo, Angela; Preti, Christian

doi:10.1016/j.apergo.2015.11.003

Cited by 13 publications

(8 citation statements)

References 28 publications

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“…The vibration signals, therefore, followed a scaling factor depending on the canopy zone in which the vibration occurred. There was a lower presence of impacts for these signals, as indicated by the crest factor value, when compared to the shaker combs used for olive harvesting, which have a similar resultant acceleration distribution [ 8 , 34 ]. The low forward speed, which was outside the usual values of 0.8 to 1.5 km h −1 employed with lateral canopy shakers, not only increased the vibration time, but also significantly reduced the working capacity of the values of 0.25–0.50 ha h −1 indicated by other authors [ 26 , 27 , 35 , 36 ].…”

Section: Discussionmentioning

confidence: 99%

Assessment of a Side-Row Continuous Canopy Shaking Harvester and Its Adaptability to the Portuguese Cobrançosa Variety in High-Density Olive Orchards

Aragon-Rodriguez

Dias

Pinheiro

et al. 2023

Sensors

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The olive tree is an important crop in Portugal, where different levels of intensification coexist. The traditional olive orchards present profitability problems, mainly due to harvesting, so there has been a drastic reconversion towards high-density or super-high-density olive orchards. The latter present major constraints due to very specific needs for their use, being practically destined for new orchards. Consequently, the possibility of using systems based on canopy shakers in high-density olive orchards with local varieties is promising. The objective of this work is to evaluate a prototype canopy shaker for the harvesting of high-density olive orchards of the Portuguese variety ‘Cobrançosa’. The evaluation is based on the study of canopy shaking in order to adapt canopy training and the adaptability of the machine. For this purpose, the vibration of 72 points of the tree canopy was recorded and a qualitative assessment of the harvest was carried out. Differences were found between the different zones according to the direction of the forward movement of the harvester and the distance to the trunk. These differences were associated with the values obtained for fruit detachment, and a greater quantity of fruit was harvested in the areas of the canopy in contact with the rods.

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Section: Discussionmentioning

confidence: 99%

Assessment of a Side-Row Continuous Canopy Shaking Harvester and Its Adaptability to the Portuguese Cobrançosa Variety in High-Density Olive Orchards

Aragon-Rodriguez

Dias

Pinheiro

et al. 2023

Sensors

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“…Vibration measurement values based on the first power of the two weightings W h and W h50lp provided the strongest indicators for developing any form of HAVS in a British study 44 . Field measurement with source signals filtered by the W h‐bl filter (ISO/TS 15694) may be more appropriate, because the weighting filter W h used in ISO 5349‐1 (unlike the W h‐bl filter) could underestimate the effect of high‐frequency vibration on vibration‐induced finger disorders 46 …”

Section: Discussionmentioning

confidence: 99%

Upper extremity musculoskeletal disorders and work exposures among railroad maintenance‐of‐way workers

Landsbergis

Johanning

Stillo

et al. 2021

American J Industrial Med

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Background Our objective was to examine occupational risk factors for musculoskeletal disorders of the shoulders, elbows, wrists, and hands among railroad maintenance‐of‐way (MOW) workers. Little systematic research on musculoskeletal disorders has been conducted in this occupational group. Methods In total, 3995 active members of the Brotherhood of Maintenance of Way Employes Division (BMWED) completed a standardized survey focusing on disorders caused by hand‐transmitted vibration. We computed adjusted prevalence ratios (aPRs) using Poisson regression for shoulder, elbow, carpal tunnel syndrome, and vibration white finger musculoskeletal symptoms by work exposures, adjusted for age, region, race/ethnicity, smoking, potential second job, and spare time vehicle vibration exposure, and other work exposures. Results Among active male BMWED members, we found associations between >5.2 years (vs. 0.0–0.7 years) duration of full‐time equivalent power tool use and shoulder pain (aPR = 2.01; 95% confidence interval [CI], 1.43–2.85), elbow pain (aPR = 2.88; 95% CI, 1.86–4.46), vibration white finger symptoms (aPR = 2.49; 95% CI, 1.06–5.85), hand/wrist pain (aPR = 2.40; 95% CI, 1.74–3.32), finger numbness or tingling (aPR = 1.86; 95% CI, 1.38–2.50) and self‐reported carpal tunnel syndrome diagnosis (aPR = 2.16; 95% CI, 1.24–3.77). Associations were not consistent across outcomes for the duration of non‐powered hand tool use and “repeated lifting, pushing, pulling, or bending.” Positive gradients were observed for most outcomes. Conclusions Hand‐arm vibration and some other biomechanical exposures were associated with shoulder, elbow, wrist, hand, and finger symptoms. Prevention programs should address occupational risk factors for upper extremity musculoskeletal disorders among MOW workers.

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“…There are few studies on the impact of noise and HAV exposure in the olive sector. Some studies on hand-harvesters [ 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 ] only assess the HAV exposure received by the worker, with values almost always above the EAV set by Directive 2003/10/EC [ 75 ] and sometimes above the ELV.…”

Section: Occupational Hav and Noise In The Olive Oil Sectormentioning

confidence: 99%

Proposal of Combined Noise and Hand-Arm Vibration Index for Occupational Exposure: Application to a Study Case in the Olive Sector

Nieto-Álvarez

Hoz‐Torres

Aguilar

et al. 2022

IJERPH

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In many production and industrial sectors, workers are exposed to noise and hand-arm vibrations (HAV). European directives have established the maximum limit values or exposure action values for noise and vibration independently. However, in many cases, workers who endure hand-arm vibration also receive high noise levels. This research suggests a procedure to aid the establishment of precautionary measures for workers with simultaneous exposure to both physical agents. This procedure defines a combined index based on the energy doses for both noise and HAV. From this combined index, the suggested methodology allows a recommended exposure time for workers with simultaneous noise and HAV exposure to be calculated. This methodology can be adapted to tackle the relative importance assigned to both agents according to the safety manager and new knowledge on combined health effects. To test this method, a measurement campaign under real working conditions was conducted with workers from the olive fruit-harvesting sector, where a variety of hand-held machinery is used. The results of the study case show that the suggested procedure can obtain reliable exposure time recommendations for simultaneous noise and HAV exposures and is therefore a useful tool for establishing prevention measures.

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Vibration and impulsivity analysis of hand held olive beaters

Cited by 13 publications

References 28 publications

Assessment of a Side-Row Continuous Canopy Shaking Harvester and Its Adaptability to the Portuguese Cobrançosa Variety in High-Density Olive Orchards

Assessment of a Side-Row Continuous Canopy Shaking Harvester and Its Adaptability to the Portuguese Cobrançosa Variety in High-Density Olive Orchards

Upper extremity musculoskeletal disorders and work exposures among railroad maintenance‐of‐way workers

Proposal of Combined Noise and Hand-Arm Vibration Index for Occupational Exposure: Application to a Study Case in the Olive Sector

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