Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 6

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  working resistance
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Forces acting on the plate share lifting the ridge

100%
Lisowski A.
Annals of Warsaw Agricultural University. Agriculture
|
2001
|
nr 41 Agric.Eng.
19-23
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Impact of technical parameters on the horizontal resistance component when slicing soil with a duckfoot share

86%
Nowakowski T., Lisowski A., Struzyk A., Klonowski J., Sypula M., Chlebowski J., Kostyra K., Kaminski J., Swietochowski A., Green O., Lauryn D., Margielski J.
Annals of Warsaw University of Life Sciences - SGGW. Agriculture
|
2015
|
nr 65 Agric.Forest Eng.
The aim of the paper was studying the resistance during splicing of soil, represented by the horizontal resistance component (Fx), depending on changes of speed and working depth of a work piece in form of a duckfoot share. The study was realized under laboratory conditions in a soil channel which ensured repeatability of results. The tested work piece was a duckfoot share with width of 135 mm installed on a spring tine type VCO with stiffness of 8.3 kNm-1. The tests utilized two working depths for the tool: 0.03 and 0.05 m and two working speeds: 0.84 and 1.67 ms-1. Changes in the horizontal resistance component (Fx) depended on the speed and the working depth. At constant parameters of the soil and the tool, change in working depth from 0.03 to 0.05 m resulted in increase of resistance by 42.6% for the working speed v1 = 0.84 ms-1 and 58.8% for v2 = 1.67 ms-1.
3

Working resistance of selected machines for preparation of seedbed

86%
Slowinski K.
Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria
|
2012
|
tom 11
|
nr 2
Cultivation machines meet resistance during their operation. Mostly the magnitude of resistance depends on resistance caused by tilled material. This study presents the results of the measurements of working resistance for a disc harrow U-239 manufactured by Akpil and a seedbed former and a cultivator with a string roller manufactured by Egedal. The tests were conducted on open tree nursery in Kłaj, being part of the Forest District of Niepołomice. Sandy-loam and loam-sandy soils prevail in the nursery. The measurements of resistance were conducted in three quarters with black fallow. The compactness and humidity of soil were determined (16-24%). Working resistance was determined by the hauling method with the usage of force strain gauge. The average value of working resistance for the disc harrow fit in the range between 2.25 kN and 2.82 kN, for the seedbed former between 2.35 kN and 2.53 kN, for the cultivator with string roller between 1.50 kN and 2.37 kN.
4

Working resistance and soil failure by narrow tillage tools

86%
Kuczewski J.
Annals of Warsaw Agricultural University. Agriculture
|
2000
|
nr 37 Agric.Eng.
3-9
5

Investigations on working resistance of model plough bodies in the soil bin

72%
Yavuzcan G. H., Klonowski J., Majewski Z.
Annals of Warsaw Agricultural University. Agriculture
|
1998
|
nr 33 Agric.Eng.
3-8
6

Mathematical model of the effect on the soil of a narrow tine

72%
Piotrowska E.
Annual Review of Agricultural Engineering
|
2000
|
tom 02
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.