Intervention of dynapod in cleaner-cum-grader for drudgery reduction
Dynapod in cleaner-cum-grader for drudgery reduction
DOI:
https://doi.org/10.21921/jas.v8i01.19561Abstract
An ergonomic evaluation cleaner-cum-grader with original cycle mechanism and ICAR-CIAE developed dynapod was conducted. The study was conducted with 15 male subjects aged between 20-40 years, mean stature of 1640 ±40 mm and mean weight of 54 ±5 kg. The maximum aerobic capacities of the subjects were determined using sub-maximal exercise protocol. The mean working heart rate of the subjects in operation of machine with original cycle mechanism was 157 beats min-1 as against 125 beats min-1 with dynapod. The work pulse (?HR) of 57 beats min-1 and 31 beats min-1 was observed for pedaling with cycle mechanism and dynapod, respectively. The output capacity of machine increased by 41 kg h-1 with use of dynapod compared to pedaling with cycle mechanism. Using dynapod in operation of cleaner-cum-grader resulted in drudgery reduction by 51.6 % as compared to the original cycle mechanism.
References
Coast J R, Cox R H and Welch H G. 1986. Optimal pedalling rate in prolonged bouts of cycle ergometry. Med. Sci. Sports Exerc. 18(2): 225-230.
Gite LP, Agrawal KN, Mehta CR, Potdar RR and Narawariya BS. 2020. Handbook of ergonomical design of agricultural tools, equipment and work places. Jain Brothers, New delhi.
Gite LP, Mehta CR, Tiwari PS and Potdar RR.2013. Ergonomics and Safety in Agriculture In: Handbook of Agricultural Engineering (pp 174-192). ICAR, New Delhi.
Khadatkar A, Potdar RR, Narwariya BS, Wakudkar H and Dubey UC. 2018a. An ergonomic evaluation of pedal operated paddy thresher for farm women. Indian Journal of Agricultural Sciences 88(2):280-283.
Khadatkar A, Potdar RR, Wakudkar H, Narwariya BS and Dubey UC. 2018b. Evaluation of Improved Sickle for Paddy Harvesting in Central India. Indian Journal of Extension Education 54(1):104-107.
Maritz JS, Morrison JF, Peter J, Strydom NB and Wyndham CH. 1961. A practical method of estimating an individual's maximal oxygen intake. Ergonomics 4(2):97-122.
Marsh A P, Martin P E and Foley K O.2000. Effect of cadence, cycling experience and aerobic power on delta efficiency during cycling. Med. Sci. Sports Exerc. 32(9): 1630-1634.
Marsh P and Martin P E.1997.Effect of cycling experience, aerobic power and power output on preferred and most economical cycling cadences. Med. Sci. Sports Exerc. 29(9): 1225-1232.
Marsh P and Martin PE.1993. The association between cycling experience and preferred and most economical cadences. Med. Sci. Sports Exerc. 25(11): 1269-1274.
McCormic ET. 1976. Human Factors in Engineering and Design. Tata McGraw Hill, New Delhi.
Nag PK. 1981. Predicting maximal oxygen uptake of workers engaged in agricultural tasks. Journal of Human Ergology 10(1):25-33.
Neptune R R and Hull M L.1999.A theoretical analysis of preferred pedalling rate selection in endurance cycling. J. Biomech. 32: 409-415.
Potdar R R, Ramchandra R, Kumar A, Singh J K and Mani I. 2011. Ergonomic evaluation of rotary power input by hand and leg muscles to operate farm equipment. Journal of Agricultural Engineering 48(3):8-16.
Saha PN, Datta SR, Banerjee PK, Narayane GG.1979. An acceptable workload for Indian workers. Ergonomics 22(9):1059-71.
Seabury J J, Adams W C and Ramey M R.1977.Influence of pedalling rate and power output on energy expenditure during bicycle ergometry. Ergonomics 20(5): 491-498.
Tiwari P S.2012. Pedal power for occupational activities: Designing a dynapod. LAP LAMBERT Academic Publishing GmbH & Co. KG. Heinrich-Bocking-Str. 6-8, 66121 Saarbrucken, Germany, ISBN: 978-3-8484-0491-9. pp 133.
Tiwari PS, Gite LP, Pandey M M and Shrivastava AK. 2011.Pedal power for occupational activities: Effect of power output and pedalling rate on physiological responses. International J. of Industrial Ergonomics 41(3): 261-267.