Physiological Effect of Vibrations on Tractor Drivers under Variable Ploughing Conditions

Muzammil, Mohammad; Siddiqui, Saad S; Hasan, Fazil

doi:10.1539/joh.46.403

Cited by 35 publications

(19 citation statements)

References 17 publications

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“…Several studies have investigated WBV exposure in farming for tractor drivers (Lines et al, 1995;Sorainen et al, 1998;Kumar et al, 1999Kumar et al, , 2001Muzzammil et al, 2004;Scarlett et al, 2007). Scarlett et al (2007) quantified WBV levels and estimated operator exposure for a range of modern state-of-the art tractors under controlled ''in-field'' conditions and actual ''on-farm'' use.…”

Section: Article In Pressmentioning

confidence: 99%

Jarring/jolting exposure and musculoskeletal symptoms among farm equipment operators

Mayton

Kittusamy

Ambrose

et al. 2008

International Journal of Industrial Ergonomics

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Section: Article In Pressmentioning

confidence: 99%

Jarring/jolting exposure and musculoskeletal symptoms among farm equipment operators

Mayton

Kittusamy

Ambrose

et al. 2008

International Journal of Industrial Ergonomics

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“…It seems there are some methods that can help for assessing and improving the ergonomic aspects of agricultural machineries [12,13,6,14]. A literature review showed that many researchers have reported the valuable application of algometer device in ergonomic studies [15,16], and it has been shown to be an effective tool of quantifying pressure pain threshold [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Ergonomic assessment of drivers in MF285 and MF399 tractors during clutching using algometer

Fallahi

Abbaspour‐Fard

Azhari

et al. 2016

Information Processing in Agriculture

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Ergonomic Muscle Operator Tractor A B S T R A C T Tractor as one of the most widely used agricultural machinery should be considered from different aspects. The frequent application of clutch and brake pedals and also the steering wheel within farms, along with the unfavorable working conditions, cause negative effects on the occupational health of the tractor drivers. Thus, in this research, the imposed forces on three engaged muscles including: Gastrocnemius, Trapezius and Quadrate's lumborum of the tractor drivers during clutching have been studied. In this regard, algometer device was used to determine the applied forces on selective muscles of drivers during clutching of MF285 and MF399 tractors. The experiments were performed employing sample of 30 drivers and were conducted on two Iranian frequently used tractors including: MF285 and MF399 models.The results showed that the clutching forces for MF285 and MF399 tractors were 340 N and 290 N, respectively. The knee angle of the drivers of the two tractors was statistically different at the one percent level of significance. The reduction of pain threshold after 30 and 60 s clutching and also 60 s rest after clutching in MF285 tractor, for all three muscles, were more than those of MF399 tractor. The impact of clutching on the average decreases of pain threshold, for all drivers and all clutching periods, during and after clutching, in the Quadratus lumborum muscle was more than the other two muscles, in both tractors. In order to reduce the clutching force for MF285 tractor some modifications is suggested. In this regard the force transfer joint between the pedal and the clutch release linkage may be replaced with one made of cast iron.

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“…The types of vibration that producers most complain about are generated from the crimping action by the original straight bar roller design 9 . Research has shown that vibration generated by agricultural equipment can have detrimental effects on the operator's health, including increased heart rate, headache, stomach pain, lower back pain and long-term vibration exposure, leading to spinal degeneration [10][11][12] . The International Standard Office (ISO) 13 developed vibration limits that are harmful to the human body.…”

Section: Introductionmentioning

confidence: 99%

New roller crimper concepts for mechanical termination of cover crops in conservation agriculture

Kornecki

Price

Raper

et al. 2009

Renew. Agric. Food Syst.

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Rollers crimpers have been used in conservation agriculture to terminate cover crops; however, excessive vibration generated by the original straight-bar roller design has delayed adoption of this technology in the United States. To avoid excessive vibration, producers generally reduce operating speeds that increase the time needed to perform the field operation. The objectives of this research were to identify roller crimper designs that terminated rye cover crops consistently, resulted in soil moisture conservation after use, and minimized vibrations when operated in the field. Six different roller types were developed and tested at 3.2 and 6.4 km h -1 in Alabama field experiments during the 2006, 2007 and 2008 growing seasons. All roller types were used alone and one also in combination with glyphosate. Rye mortalities were evaluated 1, 2 and 3 weeks after rolling and compared with the check (non-rolled standing rye). Soil volumetric moisture content (VMC) was measured at the day of rolling, and then at 1, 2 and 3 weeks after rolling. Vibration was measured on the rollers' and tractor's frames during operation. Mortality for rolled rye 2 weeks after rolling was at least 98% compared with 96% for the check in 2006, 93% for rolling compared with 75% for the check in 2007, and 94% for rolling compared with 60% for the check in 2008 (P < 0.10). There were no consistent differences in rye mortality across roller types (without glyphosate) and speeds. VMC for soil in non-rolled rye plots was consistently lower than in rolled rye plots, averaging 3% compared with 7% 2 weeks after rolling in 2006, and 4% compared with 8% in 2008. During 2007, VMC was affected by severe drought conditions, and differences between roller treatments were detected but minor. The straight-bar roller generated the highest vibration on the tractor's frame at 6.4 km h -1 (0.71 m s -2 , RMS), which exceeded International Standards (International Standard Office (ISO)). At 6.4 km h -1 , new roller designs generated significantly lower acceleration levels from 0.12 to 0.32 m s -2 on the tractor's frame and were below detrimental effects on health 'health limits' classified by ISO. Overall, 2 weeks after rolling, all roller designs effectively terminated rye above 90%, which is the recommended termination level of rye to plant a cash crop into residue mat, while protecting soil surface from water loss. New roller designs generate less vibration than the original design and can be used safely at higher operating speeds.

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Physiological Effect of Vibrations on Tractor Drivers under Variable Ploughing Conditions

Cited by 35 publications

References 17 publications

Jarring/jolting exposure and musculoskeletal symptoms among farm equipment operators

Jarring/jolting exposure and musculoskeletal symptoms among farm equipment operators

Ergonomic assessment of drivers in MF285 and MF399 tractors during clutching using algometer

New roller crimper concepts for mechanical termination of cover crops in conservation agriculture

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