Põllundustehnika labor

Põllumajandusliku masintootmise kõrgkoolituses Eestis võib eristada kuut perioodi:

Praegu õpetatakse põllundustehnikat järgmiste õppeainete baasil:

Joonis 1. Künniseadmed:
a) sahad ja saha osad,
b) pöördader, mis on üliõpilaste võistluskünniader.

Joonis 2. Teraviljakülviku paiksed stendid: a) külviku ja väetiselaoturi kobarstend, b) külviku annusti reaguleerseadised koos seemnejuhade ja seemenditega, c) põllupinda kopeeriv seemendi.

Peale paiksete stendide komplekteeritakse labor igal õppeaastal vahetuvate õppevahenditestga, eelkõige liikurmasinatega, nagu traktor (joonis 3), terviljakombain koos heedriga (joonis 4) jm. Erinevatel aastatel võivad laboris olla kas otsekülvik, taimekaitseprits, niiduk või mähkurpess või mingi muu ratastega masin. Viimased tuuakse põllutöömasinaid müügiesinduste (Konekesko, Agriland, Dotnuva Baltic, Tatoli)  poolt ning on EMÜ TI-s vastutaval hoiul. Sellise moel on üliõpilastel võimalik õppeprotsessis tutvuda uusima põllundustehnikaga.

 
Joonis 3. Traktor Claas Axion.                 
 

 

Jooonis 4. Roomikkäiguosaga teravljakombain Claas Lexion.

Joonis 5. Mustikakoristi.
 

Põllundustehnika laboris tegutsevad doktorandid ja magistrandid on oma tööde käigus arendatud hulgaliselt originaalseid sh patentsed seadmeid ja masinaid, mille mõned näited on toodud joonistel 5, 6 ja 7.

c) 

Joonis 7. Sujuvalt muudetava fraktsioneerimispiluga matjasorteer:
a) mudel; b) katsestend.

Menetluses olevad leiutustaotlused:

Laboris tehtud tööde põhjal avaldatud olulisemad publikatsioonid:

Olt, J., Küüt, K., Ilves, R., Küüt, A. (2019). Assessment of the harvesting costs of different combine harvester fleets. Research in Agricultural Engineering (RAE), 66(1), 25−32. 10.17221/98/2017-RAE

Olt, J., Maksarov, V.V., Krasnyy, V.A. (2019). Study of bearing units wear resistance of engines career dump trucks, working in fretting corrosion conditions. Journal of Mining Institute, 235, 70−77. 10.31897/PMI.2019.1.70

Bulgakov, V., Pascuzzi, S., Nikolaenko, S., Santoro, F., Sotirios Anifantis, A., Olt, J. (2019). Theoretical study on sieving of potato heap elements in spiral separator. Agronomy Research, 17(1), 33−48. 10.15159/AR.19.073

Bulgakov, V., Pascuzzi, S., Arak, M., Santoro, F., Anifantis, A. S., Ihnatiev, Y., Olt, J. (2019). An experimental investigation of performance levels in a new root crown cleaner. Agronomy Research, 17(2), 358−370. 10.15159/AR.19.132

Bulgakov, V., Nikolaenko, S., Holovach, I., Adamchuk, V., Ruzhуlo, Z., Olt, J. (2019). Numerical modelling of process of cleaning potatoes in spiral separator. Agronomy Research, 17(3), 694−703. 10.15159/AR.19.077

Olt, J., Maksarov, V., Efimov, A. (2019). Improving the quality of critical tractor parts through the dynamic stabilisation of the manufacturing process in regard to CNC machines. Agronomy Research, 17(S1), 1146−1154. 10.15159/AR.19.060

Olt, Jüri, Ilves, Risto, Küüt, Arne (2019). Ülevaade: Põllumajandusliku masinapargi arengud Eestis ajavahemikul 2010-2018. Agraarteadus, 30(1), 40−48. 10.15159/jas.19.04

Bulgakov, V., Ivanovs, S., Arak, M., Olt, J. (2019). Theoretical research of force interaction of a flexible cleaning blade with a beet root head. Agronomy Research, 17(4), 1547−1559. 10.15159/AR.19.193

Olt, J., Liivapuu, O. (2019). Two approaches to the modelling of chip formation: rheological models and finite element analysis. Építőanyag - Journal of Silicate Based and Composite Materials, 71(5), 173−176. 10.14382/epitoanyag-jsbcm.2019.30

Liivapuu, Olga, Olt, Jüri, Tärgla, Tanel (2019). Comparison between finite element analysis and rheological models for chip formation. Acta et Commentationes Universitatis Tartuensis de Mathematica, 23(2), 255−268. 10.12697/ACUTM.2019.23.22

Bulgakov, V., Arak, M., Boris, A., Boris, M., Bandura, V., Olt, J. (2019). Experimental study of the distribution of the heights of sugar beet root crowns above the soil surface. Agronomy Research, 17(6), 2211−2219. 10.15159/AR.19.207

Bulgakov, V., Nadykto, V., Kyurchev, S., Nesvidomin, V., Ivanovs, S., Olt, J. (2019). Theoretical background for increasing grip properties of wheeled tractors based on their rational ballasting. Agraarteadus, 30(2),78–84. doi: 10.15159/jas.19.07

Soots, Kaarel; Olt, Andres; Olt, Jüri (2019). Manufacturing technology and mechanical properties of biodegradable tableware made from cereal bran. Actual Tasks on Agricultural Engineering Conference Proceedings: 47th International symposium "Actual Tasks on Agricultural Engineering", Opatija, 5-7.03.2019. Ed. Kovačev, Igor; Bilandžija, Nikola. University of Zagreb, 445−452.

Olt, Jüri; Ilves, Risto; Küüt, Arne (2019). Overview of developments of cereal harvester fleet in Estonia. Engineering for Rural Development, 18: 18th International Scientific Conference Engineering for Rural Development, ERD 2019; 22 May 2019 through 24 May 2019; Code 148446. Jelgava: Latvia University of Life Sciences and Technologies, 179−184. (Engineering for Rural Development). 10.22616/ERDev2019.18.N230

Bulgakov, V., Kuvachоv, V., Olt, J. (2019). Theoretical Study on Power Performance of Agricultural Gantry Systems. 30th International DAAAM Symposium ''Intelligent Manufacturing & Automation'', Zadar, 23.-26.10.2019. Ed. B. Katalinic. Vienna, Austria: DAAAM International, 0167−0175. 10.2507/30th.daaam.proceedings.022

Arak, M., Olt, J. (2019). Technological description for automating the cultivation of blueberries in blueberry plantations established on depleted peat milling fields. Proceedings of the 9th International Scientific Conference Rural Development 2019, 6 p. doi: 10.15544/RD.2019.024
 

Arak, Margus; Soots, Kaarel; Starast, Marge; Olt, Jüri (2018). Mechanical properties of blueberry stems. Research in Agricultural Engineering (RAE), 64 (4), 202−208. 10.17221/90/2017-RAE

Bulgakov, V.; Nikolaenko, S.; Adamchuk, V.; Ruzhуlo, Z.; Olt, J. (2018). Theory of retaining potato bodies during operation of spiral separator. Agronomy Research, 16 (1), 41−51.10.15159/AR.18.036.

Bulgakov, V.; Bandura; V.; Arak, M.; Olt, J. (2018). Intensification of rape seed drying process through the use of infrared emitters. Agronomy Research, 16 (2), 349−356.10.15159/AR.18.054.

Bulgakov, V.; Nikolaenko, S.; Adamchuk, V.; Ruzhylo, Z.; Olt, J. (2018). Theory of impact interaction between potato bodies and rebounding conveyor. Agronomy Research, 16 (1), 52−63.10.15159/AR.18.037.

Bulgakov, V.; Nikolaenko, S.; Arak, M.; Holovach, I.; Ruzhуlo Z.; Olt, J. (2018). Mathematical model of cleaning potatoes on surface of spiral separator. Agronomy Research, 16 (4), 1590−1606.10.15159/AR.18.173.

Bulgakov, V.; Adamchuk, V.; Arak, M.; Olt, J. (2018). The theory of cleaning the crowns of standing beet roots with the use of elastic blades. Agronomy Research, 16 (5), 1931−1949.10.15159/AR.18.213.

Bulgakov, V.; Melnik, V.; Kuvachоv, V.; Olt, J. (2018). Theoretical Study on Linkage Unit of Wide Span Tractor. In: B. Katalinic (Ed.). Proceedings of the 29th DAAAM International Symposium (0180−0189). Vienna, Austria: DAAAM International Vienna.10.2507/29th.daaam.proceedings.026.

Bulgakov, V.; Melnik, V.; Ruzhylo, Z.; Arak, M.; Olt, J.; Ihnatiev, Y. (2018). Justification of scientific and practical approaches to rational use of straw and plant residues. Proceedings. Volume 2. Uses of Machines. Innovative Technologies. Conserving Soils and Water., 2: VI International Scientific Congress "Agricultural Machinery", Burgas, Bulgaria, 25-06-28.06. 2018. Scientific-Technical Union of Mechanical Engineering, 195−198.

Bulgakov, V.; Arak, M.; Boris, A.; Boris M.; Olt, J. (2018). Experimental study of the distribution of the heights of sugar beet root crown protrusion above the field surface level. Program & Abstracts' Book: XIX World Congress of CIGR. Sustainable Life for Children, Antalya, Turkey, 22-25 April 2018. CIGR Journal, 229.

Arak, M.; Olt, J. (2017). Determination of the connection force between berries and stem in blueberry plants. Proceedings of the 45th International Symposium on Agricultural Engineering: Actual Tasks on Agricultural Engineering, Opatija, Croatia, 21-24.02.2017. Ed. Igor Kovacev. University of Zagreb, 589−595.

Bulgakov, V.; Adamchuk, V.; Arak, M.; Olt, J. (2017). A theoretical study of haulm loss resulting from rotor topper oscillation. Chemical Engineering Transactions 58, 223−228.10.3303/CET1758038

Bulgakov, V.; Adamchuk, V.; Nadykto, V.; Kistechok, O.; Olt, J. (2017). Theoretical research into the stability of motion of the ploughing tractor-implement unit operating on the “push-pull” principle. Agronomy Research, 15 (4), 1517−1529.10.15159/AR.17.069.

Bulgakov, V.; Adamchuk, V.; Arak, M.; Petrychenko, I.; Olt, J. (2017). Theoretical research into the motion of combined fertilising and sowing tractor-implement unit. Agronomy Research, 15 (4), 1498−1516.10.15159/AR.17.059.

Bulgakov, V.; Adamchuk, V.; Kuvachov, V.; Arak, M.; Olt, J. (2017). Study into movement of wide span tractors (vehicles) used in controlled traffic farming. Proceedings of the 28th DAAAM International Symposium: 28th DAAAM International Symposium on Intelligent Manufacturing and Automation, 08 – 11th November 2017, Zadar, Croatia, EU. Ed. B. Katalinic. Vienna, Austria: DAAAM International Vienna, 0199−0208.10.2507/28th.daaam.proceedings.027.

Soots, K., Olt, J. (2017). Non-stationary processing center for small and medium sized blueberry farms. Research in Agricultural Engineering (RAE), 3, 136-144, 42/2015-RAE.

Soots, K.; Krikmann, O.; Starast, M.; Olt, J. (2017). Determining the dimensional characteristics of blueberries. Agronomy Research, 15 (3), 886−896.

Soots, K.; Olt, J. (2017). Testing the adjustable drum belt sorter for blueberry size sorting. Actual Tasks on Agricultural Engineering Conference Proceedings: 45th International symposium "Actual Tasks on Agricultural Engineering", Opatija, 21-24.02.2017. University of Zagreb, 199−206.

Adamchuk, A.; Bulgakov, V.; Nadykto, V.; Ihnatiev, Y.; Olt, J. (2016). Theoretical research into the power and energy performance of agricultural tractors. Agronomy Research 14(5), 1511-1518.

Adamchuk, V.; Bulgakov, V.; Skorikov, N.; Yezekyan, T.; Olt, J. (2016). Development a new design of wood chopper for grape vine and fruit tree pruning and the results of field testing. Agronomy Research 14(5), 1519-1529.

Bulgakov, V.; Adamchuk, V.; Gorobey, V.; Olt, J. (2016). Theory of the oscillations of a toothed disc opener during its movement across irregularities of the soil surface. Agronomy Research 14(3).

Bulgakov, V.; Adamchuk, V.; Arak, M.; Nadykto, V.; Kyurchev, V.; Olt, J. (2016). Theory of vertical oscillations and dynamic stability of combined tractor-implement unit. Agromomy Research 14(3), 689-710.

Soots, Kaarel; Leemet, Tõnu; Tops, Karel; Olt, Jüri (2016). Development of belt sorters smoothly adjustable belt drums. Agronomy Research, 14 (3), 917−928.

Yezekyan, Tatevik; Olt, Jüri (2016). Vineyard floor management with novel free-active inter-row tiller. 15th International Scientific Conference ENGINEERING FOR RURAL DEVELOPMENT Proceedings, 15: 15th International Scientific Confernce "Engineering for Rural Development", Jelgava, 25.-27.05.2016. Engineering for Rural Development, 1266−1273.

Bulgakov, V.; Adamchuk, V.; Olt, J.; Orszaghova, D. (2015). Use of Euler equations in research into three-dimensional oscillations of sugar beet root during its vibration-assisted lifting. Agronomy Research, 13 (1), 33−45.

Bulgakov, V.; Adamchuk, V.; Arak, M.; Olt, J. (2015). Theory of vibration-assisted sugar beet root lifting. Agronomy Research, 13 (5), 1165−1192.

Nadykto, V.; Arak, M.; Olt, J. (2015). Theoretical research into the frictional slipping of wheel-type undercarriage taking into account the limitation of their impact on the soil. Agronomy Research 13(1), 148−157.

Olt, J.; Mikita, V.; Roots, J.; Jasinskas, A. (2015). Cylinder pressure characteristics of turbocharged and naturally aspirated diesel engines. Procedia Engineering 100, 350−359. 10.1016/j.proeng.2015.01.378.

Maksarov, V., Khalimonenko, A., Olt, J. (2017). Managing the process of machining on machines on the basis of dynamic modelling for a technological system. Építőanyag - Journal of Silicate Based and Composite Materials, 69(2), 66-71, 10.14382/epitoanyag-jsbcm.2017.12.

Maksarov, V.; Zlotnikov, E.; Olt, J. (2017). Determining the load on support rollers the pipe conveyor belt. Proceedings of the 28th DAAAM International Symposium: 28th DAAAM International Symposium on Intelligent Manufacturing and Automation, 08 – 11th November 2017, Zadar, Croatia, EU. Ed. B. Katalinic. Vienna, Austria: DAAAM International Vienna, 0209−0215.10.2507/28th.daaam.proceedings.028.

Olt, Jüri; Liyvapuu, Alexander; Madissoo, Marten; Maksarov, Viacheslav (2016). Dynamic simulation of chip formation in the process of cutting. International Journal of Materials and Product Technology, 53 (1), 1−14.

Maksarov, V.; Khalimonenko, A.; Olt, J. (2016). Effect of porosity on the performance of cutting ceramics. Agronomy Research, 14, 1043−1052.

Olt, J.; Maksarov, V. (2016). Cutting process simulation on the basis of rheological properties of metals. In: Katalinic, B. (Ed.). Proceedings of the 26th International DAAAM Symposium "Intelligent Manufacturing & Automation" 21-24th October 2015 (229−237). Vienna, Austria: DAAAM International Vienna.

Olt, Jüri; Liivapuu, Olga; Maksarov, Viacheslav; Liyvapuu, Alexander; Tärgla, Tanel (2016). Mathematical Modelling of Cutting Process System. In: Engineering Mathematics I (173−186). Springer International Publishing. (Springer Proceedings in Mathematics & Statistics).10.1007/978-3-319-42082-0_11.

Olt, J.; Maksarov, V. (2016). Development of chatter-resistant system of cutting tool. Annals of DAAAM and Proceedings of the International DAAAM Symposium, 26.Ed. Katalinic, B. Vienna, Austria: DAAAM International Vienna, 223−228.10.2507/26th.daaam.proceedings.031.

Madissoo, Marten; Rossner, Argo; Olt, Jüri; Maksarov, Viacheslav (2015). Testing of the External Turning Tool Holder Equipped With Alternate Bars in Its Construction. Materials Science, 21 (3), 391−395.10.5755/j01.ms.21.3.7351.

Olt, J.; Mikita, V.; Roots, J.; Jasinskas, A. (2015). Cylinder pressure characteristics of turbocharged and naturally aspirated diesel engines. Procedia Engineering, 100, 350−359.10.1016/j.proeng.2015.01.378.

Olt, Jüri (2015). Põllumajandustehnika 1. Põllundusmasinad. KUMA Kirjastus.

Bulgakov, V.; Adamchuk, V.; Arak, M.; Olt, J. (2015). Mathematical modelling of the process of renewal of the fleet of combine harvesters. Agriculture and Agricultural Science Procedia, 7, 35−39.

Bulgakov, V.; Kyurchev, V.; Nadykto, V.; Olt, J. (2015). Structure development and results of testing a novel modular power unit. Agriculture and Agricultural Science Procedia, 7, 40−44.

Erinevaid rakendusuuringuid on põllundustehika labor läbi viinud ettevõtete Baltic Trio OÜ, Eestivili AS, Gotech OÜ, Holzraum OÜ, Huum OÜ, OÜ Kaubi Farmid, L- Engineering OÜ, Liivi Talu OÜ, Meng OÜ, Tarmetec OÜ jpt tellimustööna.