Physiological responses of operators to handle vibration of diesel-fueled single-axle tractor

Busse, Siraj; Sinclair, A. N.; Wondimu, Diresibachew H.; Redda, Daniel Tilahun

doi:10.5897/ajar2019.14187

Cited by 6 publications

(1 citation statement)

References 13 publications

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“…During several hours of farming, operators of single-axle tractors are subjected to large quantities of hand vibration. Vibration feedback from most power tools to the hand contains inputs from all three orthogonal motion axes and frequency-weighted RMS acceleration values for vertical, forward and lateral direction measured as a hwx , a hwy , and a hwz are recorded separately using the frequency-weighting graph, respectively [1].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Effect of Handle Vibration Diesel-Fueled Single-Axle Tractor on Handgrip Strength of Operators

Busse¹,

Sinclair²,

Wondimu³

et al. 2020

Preprint

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Background: The transmission of vibration from a single-axis tractor to the human body is determined by its dynamic response; this, in turn, depends on the physical characteristics of a person's hand, the contact area, the strength of the grip, the push force of the tractor, and the position. The purpose of this work was to measure and evaluate handgrip strength and fatigue resistance for operators of a 15 horsepower single-axle tractor before and after vibration exposure. Methods: Grip strength of dominant and non-dominant hands before and after 30 minutes of tilling operations was measured and recorded. The operators performed tilling tasks with the tractor in third gear, while the vibration levels were measured at the tractor handle along with the vertical, forward, and transverse directions. Results: The average operator grip strength was 33.6 ± 2.7 and 26.3 ± 3.3 kg and the average overall grip strength declined from 39.7 to 29.31 kg, although the average fatigue strength was 27.6 and 26.5 seconds for the dominant hand before and after vibration exposure. For the non-dominant hand, the mean grip strength measured was 28.7±2.9 and 23.1±1.9 kg and the maximum grip strength was 32.79 and 26.25, while fatigue was 29.76 and 22 seconds before and after tilling respectively.Conclusion: The average reduction in grip strength suggest considerable differences in grip strength for dominant and non-dominant hands of single axle tractor operators and shows that vibration transmitted from the single axle tractor handle has a major effect on the operators.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Effect of Handle Vibration Diesel-Fueled Single-Axle Tractor on Handgrip Strength of Operators

Busse¹,

Sinclair²,

Wondimu³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

Designing and modeling the power transmission mechanism for existing walking tractors to facilitate their guidance and turning

Soleimani,

Abbaspour-Fard,

Rohani

et al. 2023

Int J Interact Des Manuf

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Evaluation of the vibration characteristics and handle vibration damping of diesel-fueled 15-HP single-axle tractor

Busse

Sinclair

Redda

et al. 2021

Advances in Mechanical Engineering

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Attenuation of vibration transmitted from a single-axle tractor to a human hand results in a better operating environment, enhanced production performance, and decreased user pain. The purpose of this work was to attenuate the hand-transmitted vibration of a single axle tractor using a vibration damper made from a rubber compound. After the damper was installed, the vibration measurements were done for the second and third gears and compared to the undamped vibration. When the vibration measured with the second gear after the rubber dampers were mounted was compared to the vibration measured before application of damping, the upright, forward, and lateral directions of vibration showed 42%, 39%, and 46% reductions, respectively. In the third gear, the decrement was 46%, 29%, and 50% in the upright, forward, and lateral directions, respectively. The latency periods after application of the vibration damping show an increment of 2.55–4.76 years with second gear, and from 2.2 to 4.17 years with third gear. This reflects an increase of 89% and 90% with second and third gears respectively.

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Physiological responses of operators to handle vibration of diesel-fueled single-axle tractor

Cited by 6 publications

References 13 publications

Evaluation of Effect of Handle Vibration Diesel-Fueled Single-Axle Tractor on Handgrip Strength of Operators

Evaluation of Effect of Handle Vibration Diesel-Fueled Single-Axle Tractor on Handgrip Strength of Operators

Designing and modeling the power transmission mechanism for existing walking tractors to facilitate their guidance and turning

Evaluation of the vibration characteristics and handle vibration damping of diesel-fueled 15-HP single-axle tractor

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