| تعداد نشریات | 283 |
| تعداد نشریات سازمان | 81 |
| تعداد شماره‌ها | 2,766 |
| تعداد مقالات | 31,497 |
| تعداد مشاهده مقاله | 39,698,890 |
| تعداد دریافت فایل اصل مقاله | 17,254,016 |
بررسی نیروهای سه محوره وارد بر زیرشکن کج ساق تک شاخه و دو شاخه در سرعت های پیشروی متفاوت | ||
| تحقیقات سامانه‌ها و مکانیزاسیون کشاورزی | ||
| مقاله 2، دوره 22، شماره 77، خرداد 1400، صفحه 1-18 اصل مقاله (1.24 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/erams.2018.110422.1188 | ||
| نویسندگان | ||
| محمد عسکری* 1؛ غلامحسین شاهقلی2؛ یوسف عباسپور گیلانده3 | ||
| 1استادیار گروه مهندسی مکانیک بیوسیستم، دانشکده مهندسی زراعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، مازندران، ایران | ||
| 2استاد گروه مهندسی بیوسیستم دانشکده کشاورزی و منابع طبیعی دانشگاه محقق اردبیلی | ||
| 3استاد گروه مهندسی بیوسیستم دانشکده کشاورزی و منابع طبیعی دانشگاه محقق اردبیلی | ||
| چکیده | ||
| در این تحقیق، نیروهای مقاوم افقی، عمودی و جانبی وارد بر زیرشکن کجساق در حالتهای تک شاخه و دو شاخه در چهار سرعت پیشروی 8/1، 3/2، 9/2 و 5/3 کیلومتر بر ساعت و در عمق ثابت40 سانتیمتر بررسی شد. آزمایشهای مزرعهای بر پایۀ طرح بلوکهای کاملاً تصادفی با چهار تکرار اجرا گردید. نیروهای افقی، عمودی و جانبی در هر آزمایش اندازهگیری و ثبت شدند. نتایج بررسیها نشان میدهد که با افزایش سرعت پیشروی از 8/1 به 5/3 کیلومتر برساعت، نیروهای مقاوم افقی، عمودی و جانبی به ترتیب در حالت تک شاخه به میزان 14، 5/3 و 1 درصد و در حالت دو شاخه به میزان 13، 2/1 و 5/11 درصد افزایش مییابند. همچنین، با مقایسۀ این نیروها مشخص شد که نیروی مقاوم افقی حالت دو شاخه بیش از دو برابر حالت تک شاخه، نیروی مقاوم عمودی بیشتر از حالت تک شاخه اما نه دو برابر آن و نیروی مقاوم جانبی حالت دو شاخه بسیار کمتر از نیروی مقاوم جانبی حالت تک شاخه است. در حالت کلی، توصیه میشود که با استفاده از دو شاخۀ توأم کجساق به جای انواع تک شاخۀ آن، میزان نفوذ شاخهها را در خاک افزایش و نیروی جانبی را کاهش دهیم و تعادل جانبی مجموعه تراکتور- زیرشکن را بهبود بخشیم. | ||
| کلیدواژه‌ها | ||
| تیغه باریک خاک‌ورز؛ دینامومتر؛ نیروی جانبی؛ نیروی مقاوم افقی | ||
| عنوان مقاله [English] | ||
| Field Assessment of Triaxial Forces on Single and Double Bentleg Plows at Various Forward Speeds | ||
| نویسندگان [English] | ||
| Mohammad Askari1؛ Gholamhosein Shahgholi2؛ Yousef Abbaspour-Gilandeh3 | ||
| 1Assistant Professor of Mechanical Engineering of Biosystem, Faculty of Agricultural engineering, Sari Agricultural Sciences and Natural Resources University, Sari. Iran | ||
| 2Associate professor of biosystems engineering, Faculty of agriculture and natural resources, University of mohaghegh ardabili | ||
| 3Professor of biosystems engineering, Faculty of agriculture and natural resources, University of mohaghegh ardabili | ||
| چکیده [English] | ||
| In this research, horizontal, vertical and side forces on a single bentleg plow (SBLP) and a double bentleg plow (DBLP) at four forward speeds of 1.8, 2.3, 2.9 and 3.5 kmh-1 and at the constant depth of 40 cm was evaluated. The experiment was arranged in the randomized complete block design with four replications. In each experiment, three perpendicular soil forces were measured and recorded. Results showed that increasing forward speed from 1.8 to 3.5 kmh-1 resulted in increasing horizontal, vertical and side forces by 14, 3.5 and 1% for SBLP and 13, 1.2 and 11.5% for DBLP, respectively. Other results indicated that horizontal force for DBLP was more than twice of that for SBLP. The vertical force was lower for SBLP but it was not more than half that of DBLP and the side force for DBLP was very less than that for SBLP. Generally, using the DBLP increases tine penetration and decreases side force which leads to balanced operation of the subsoiler and tractor and therefore recommended. | ||
| کلیدواژه‌ها [English] | ||
| Dynamometer, Horizontal Force, Narrow Tillage Tine, Side Force | ||
| مراجع | ||
|
Abbaspour-Gilandeh, Y., & Khanramaki, M. (2013). Design, construction and calibration of a triaxial dynamometer for measuring forces and moments applied on tillage implements in field conditions. Metrology Society of India, 28(2), 119-127. Alimardani, R., Fazel, Z., Akram, A., Mahmoudi, A., & Varnamkhasti, M. G. (2008). Design and development of a three-point hitch dynamometer. Journal of Agricultural Technology, 4(1), 37-52. Al-Suhaibani, S. A., & Al-Janobi, A. (1997). Draught requirements of tillage implements operating on sandy loam soil. Journal of Agricultural Engineering Research, 66(3), 177-182. Anon. (2015). Agricultural statistics paper, Ministry of Agricultural Jihad. Iran. (in Persian) Ashrafi Zadeh, S. R. (2006). Modelling of energy requirements by a narrow tillage tool (M. Sc. Thesis), Department of Agricultural and Bioresource Engineering, University of Saskatchewan. Canada. Askari, M., Komarizade, M. H., Nikbakht, A. M., Nobakht, N., & Teimourlou, R. F. (2011). A novel three-point hitch dynamometer to measure the draft requirement of mounted implements. Researrch in Agricultural Engineering, 57, 128-136. Celik, A., & Raper, R. L. (2012). Design and evaluation of ground-driven rotary subsoilers. Soil & Tillage Research, 124(3), 203-210. Durairaj, C. D., & Balasubramanian, K. (1997). Influence of tool angles and speed on the soil reactions of a bent leg plough in two soils. Soil & Tillage Research, 44(3), 137-150. Esehaghbeygi, A., Tabatabaee Far, A., Raoufat, M. H., & Keyhai, A. R. (2002). Analytical models and predicting draft force of oblique blade subsoiler. Journal of Agricultural Science, 16(2): 239-251. (in Persian) Esehaghbeygi, A., Tabatabaee far, A., Keyhai, A. R., & Raoufat, M. H. (2005). Effect of depth and rake angle on the draft requirement of oblique blade subsoiler. Iranian Journal of Agriculture Science, 36(4), 1045-1052. (in Persian) Glancey, J. L., Upadhyaya, S. K., Chancellor, W. J., & Rumsey, J. W. (1996). Prediction of agricultural implement draft using an instrumented analog tillage tool. Soil & Tillage Research, 37, 47-65. Godwin, R. J., & Spoor, G. (1977). Soil failure with narrow tines. Journal of Agricultural Engineering Research, 22(4), 213-228. Harrigan, T. M., & Rotz, C. A. (1995). Draft relationships for tillage and seeding equipment. Applied Engineering in Agriculture, 11(3), 773-783. Harrison, H. P., & Licsko, Z. J. (1989). Soil reacting forces for models of three bentleg plows. Soil & Tillage Research, 15(1-2), 125-135.Ismail, W. I. W., & Burkhardt, T. H. (1993). Draft and fuel requirements measurement using tractor on-board data acquisition system, Pertanika Journal of Science & Technology, 1(1), 51-64. Jafari, R., Tavakoli Hashjin, T., & Raoufat, M. H. (2008). Design, development and evaluation of a modified bentleg plow to increase energy usage efficiency. Proceddings of the 5th National Conference on Agricultural Machinery and Mechanization. Aug. 27-29. University of Ferdowsi Mashhad, Iran. (in Persian) Jafari, R., & Tavakoli Hashjin, T. (2016). Performance evaluation of modified bentlegplow using finite element approach. Iranian Journal of Agriculture Research, 35(1), 63-72. (in Persian) Kasisira, L. L., & du Plessis, H. L. M. (2006). Energy optimization for subsoilers in tandem in a sandy clay loam soil. Soil & Tillage Research, 86(2), 185-198. Majidi Iraj, H., & Raoufat, M. H. (1997). Power requirement of a bentleg plow and its effects on soil physical conditions. Iranian Journal of Agriculture Research, 16(1), 1-16. (in Persian) McLaughlin, N. B., Drury, C. F., Reynolds, W. D., Yang, X. M., Li, Y. X., Welacky, T. W., & Stewart, G. (2008). Energy inputs for conservation and conventional primary tillage implements in a clay loam soil. Transactions of the ASABE, 51, 1153-1163. Moeenifar, A. M., Kalantari, D., & Mousavi Seyedi, S. R. (2013). Application of dimensional analysis in determination of traction force acting on a narrow blade. International Journal of Agriculture and Crop Sciences, 59, 1034-1039. Owen, G. T. (1989). Subsoiling forces and tool speed in compact soils. Canadian Agricultural Engineering, 31, 15-20. Ramadhan, M. N. (2011). Field study to evaluate the mechanical performance of the double tines longitudinally arranged subsoiler and its effect on some growth characteristics of barley hordeum vulgare L. (M. Sc. Thesis), College of Agriculture, Basrah University. Basrah. Iraq. Ramadhan, M. N. (2014). Developmenet and performance evaluation of the double tines subsoiler in silty clay soil part1: draft force, disturbed area and specific resistance. Mesopotamia Journal of Agriculture, 421, 293-313. Ranjbarian, S., Askari, M., & Jannatkhah, J. (2017). Performance of tractor and tillage implements in clay soil. Journal of the Saudi Society of Agricultural Sciences, 16(2), 154-162. Raoufat, M. H. (1998). Comparison of performance of two models of deep plow. International Conference on Agricultural Engineering. Aug. 24-27, Oslo, Norway. Raoufat, M. H., & Firuzi, S. (1998). Field evaluation of a dual bentleg plow. Iranian Journal of Agriculture Research, 17 (2): 67-82. (in Persian) Raoufat, M. H., & Mashhadi Mighani, H. (1998). Appropriate tine spacing of a double bentleg plow for better tillage and efficient performance. Iranian Journal of Agriculture Science, 30 (2), 319-330. (in Persian) Raoufat, M. H., & Shahabzade, M. M. (2006). Design, construction and evaluation of bentleg subsoiler for deep subsoiling in sugar cane fields. Proceedings of the 4th National Conference on Agricultural Machinery and Mechanization. Sep. 15. University of Tabriz, Tabriz, Iran. (in Persian) Raoufat, M. H., & Kazemi Najafabadi, M. (2007). Performance of bentleg subsoiler with surface blades in clay soil. Journal of Science and Technology of Agriculture and Natural Resources, 41(1), 117-128. (in Persian) Raoufat, M. H., Kavoosi, Z., Majidi Iraj, H., & Roustapour, O. R. (2016). Technologies of tillage implements in line with Sustainable agriculture. Proceddings of the 10th National Conference on Agricultural Machinery and Mechanization. Sep. 7-8. University of Ferdowsi Mashhad, Mashhad, Iran. (in Persian) Raper, R. L. (2002). The influence of implement type, tillage depth and tillage timing on residue burial. Transaction of the ASAE, 455, 1281-1286. Raper, R. L. (2007). In-row subsoilers that reduce soil compaction and residue disturbance. Applied Engineering Agriculture, 23(3), 253-258. Sahu, R. K., & Raheman, H. (2006). Draught prediction of agricultural implements using reference tillage tools in sandy clay loam soil. Biosysystem Engineeing, 94(2), 275-284. Salar, M. R., Esehaghbeygi, A., & Hemmat, A. (2013). Soil loosening characteristics of a dual bent blade subsurface tillage implement. Soil & Tillage Research, 134(2), 17-24.Shahi, N., Shahgholi, G., & Biranvand, M. (2010). Modelling of soil-blade interaction and effect of speed and depth on subsoiler performance using discrete element method (DEM). Proceedings of the 6th National Conference on Agricultural Machinary Engineering and Mechanization. SEP. 15. University of Tehran. Karaj, Iran. (in Persian) Sheikh, G. S. (1989). Agricultural mechanization research development and planning. Journal of Agricultural Science, 21, 3-4. Spoor, G., & Godwin, R. J. (1978). An experimental investigation into the deep loosening of soil by rigid tines. Journal of Agricultural Engineering Research, 2(3), 243-259. Summers, J. D., Khalilian, A., Batchelder, D. G. (1986). Draft relationships for primary tillage in Oklahoma soils. Transaction of the ASAE, 291, 37-39. | ||
|
آمار تعداد مشاهده مقاله: 460 تعداد دریافت فایل اصل مقاله: 241 |
||