Physical model of tractor implement

Laceklis-Bertmanis, J., Latvia Univ. of Agriculture, Jelgava; Pirs, V., Latvia Univ. of Agriculture, Jelgava; Kronbergs, E., Latvia Univ. of Agriculture, Jelgava; Metla-Rozentals, M., Konekesko Latvija, SIA, Riga; Metla, M., Konekesko Latvija, SIA, Riga

Physical model of tractor implement

2012

Laceklis-Bertmanis, J., Latvia Univ. of Agriculture, Jelgava (Latvia) | Pirs, V., Latvia Univ. of Agriculture, Jelgava (Latvia) | Kronbergs, E., Latvia Univ. of Agriculture, Jelgava (Latvia) | Metla-Rozentals, M., Konekesko Latvija, SIA, Riga (Latvia) | Metla, M., Konekesko Latvija, SIA, Riga (Latvia)

In order to perceive the pressure oscillation in the hydraulic hitch-system of the tractor and oscillation of the whole tractor aggregate at different loads on the hitch-system, a physical model is used. Changing the position of weight on physical implement boom, different moments of inertia were obtained and the appropriate load on the hydraulic hitch-system hydro cylinder. Results of driving experiments on the artificial roughness road present the maximum pressure peak of 220 bar in the tractor hydraulic system when weight was placed on further position, and the driving speed was 8 km hE-1 and tyre pressure was 1.2 bar. At the driving speed of 11.2 km hE-1 and with the same tyre pressure, the hydraulic system pressures reached up to 212 bar. On the weight on the middle position of boom, pressure in the hydraulic hitch-system reached 172 bar at the driving speed of 7.8 km hE-1 and tyre pressure of 1.2 bar, but at the driving speed of 11.2 km hE-1 and at the same tyre pressure, the hydraulic system pressures reached 165 bar. If the weight was placed on nearest position, pressure in the hydraulic hitch-system reached only 85 bar at the driving speed of 7.8 km hE-1 and tyre pressure - 1.2 bar, but at the driving speed of 11.2 km hE-1 and at the same tyre pressure, it was 98 bar. The investigation of the physical tractor-implement model allows the determination of the conformity of the physical model with real harrow implement.

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Mots clés AGROVOC

attelage computer software data collection data processing enganches experimentation hitches hydraulic systems latvia letonia lettonie logiciel methode methods modele modelos models pression pressure procesamiento de datos programas de ordenador recherche research tracteur tractores tractors

Informations bibliographiques

Publié dans

Research for Rural Development. International Scientific Conference Proceedings (Latvia)

Numéro 18/2012 ISSN 1691-4031

Editeur

Latvia University of Agriculture

Pagination

p. 217-222

D'autres materias

Traitement des donnees; Coleccion de datos; Presion; Collecte de donnees; Investigacion; Sistemas hidraulicos; Metodos; Experimentacion; Systeme hydraulique

Langue

anglais

Note

Summary (En)

6 fig., 7 ref.

Type

Conference; Summary; Ams

Source

Research for Rural Development 2012. Annual 18th International Scientific Conference Proceedings. Volume 1, Treija, S.Skuja, I..- Jelgava (Latvia): Latvia University of Agriculture, 2012. International Scientific Conference: Research for Rural Development, 18, Jelgava (Latvia), 16-18 May 2012.- p. 217-222

Conférence

International Scientific Conference: Research for Rural Development, 18, Jelgava (Latvia), 16-18 May 2012

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Cette notice bibliographique a été fournie par Fundamental Library of Latvia University of Life Sciences and Technologies

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Liens

http://www2.llu.lv/research_conf/Proceedings/18th_volume1.pdf http://www2.llu.lv/research_conf/proceedings.htm

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