DEVELOPMENT OF A SWIVELING HEAD TYPE POWER BRUSH CUTTER 2943

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dc.contributor.advisorV. K. Tiwari
dc.contributor.authorKACHHADIYA DIVYESH MANSUKHBHAI
dc.date.accessioned2021-07-09T11:32:49Z
dc.date.available2021-07-09T11:32:49Z
dc.date.issued2019-09
dc.description.abstractGrass cutting is an important operation in agriculture field. In India, agriculture has facing serious challenges like scarcity of agricultural labour in peak seasons and almost throughout the year. In India, grass is cut in two ways i.e manual method (conventional method) and mechanized way. In the past and even until now, cutting of grasses in the field surface, forest, sports tracks, industries, hotels, public centre, etc. are being cut with a cutlass. Manual cutting is time consuming and stressful operation. In addition, inaccuracy in cutting level was also observed in manual cutting method. In India, for the design and development of most of the agricultural machines have been given less attention towards ergonomic aspects. While to get more work from a worker it is must to consider ergonomic design. A swiveling head type power brush cutter was developed and test results were analyzed in terms of, cutting efficiency, field efficiency, heart rate, oxygen consumption rate and energy expenditure rate. Three different forward speed: 1 km/h, 1.5 km/h and 2 km/h and three different swiveling shaft speed of 15 rpm, 20 rpm and 25 rpm with three different nylon wire length 10 cm, 15 cm, 20 cm were used for the test performance. For the experiment, alfalfa grass was used for cutting. The field capacity of existing brush cutter is 0.098 ha/h, but in case of developed brush cutter it is 0.123 ha/h. The maximum field efficiency was found 91.47 % at 1 km/h forward speed, 15 rpm swiveling shaft speed and 10 cm nylon wire length. The maximum cutting efficiency was found 94.81 % at 1 km/h, 25 rpm swiveling shaft speed and 20 cm nylon wire length. Minimum heart rate, oxygen consumption rate, energy expenditure rate were found at 1 km/h forward speed, 15 rpm swiveling shaft speed and 10 cm nylon wire length. The energy consumption of developed brush cutter was observed 185.13 MJ/ha while by existing brush cutter operation it was 235.27 MJ/ha.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810170336
dc.keywordsAlfalfa grass, heart rate, brush cutteren_US
dc.language.isoEnglishen_US
dc.pages113pen_US
dc.publisherJAU, JUNAGADHen_US
dc.subFarm, Machinery and Poweren_US
dc.themeDEVELOPMENT OF A SWIVELING HEAD TYPE POWER BRUSH CUTTER 2943en_US
dc.these.typeM.Tech.en_US
dc.titleDEVELOPMENT OF A SWIVELING HEAD TYPE POWER BRUSH CUTTER 2943en_US
dc.typeThesisen_US
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