Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Krzysztof Lejman"'
Publikováno v:
Applied Sciences, Vol 14, Iss 12, p 5228 (2024)
This paper presents an innovative method to determine the impact of agricultural wheels on soil. The experiment was conducted under controlled conditions, and the parameters of the tire footprints on the soil were analyzed. The tested parameters were
Externí odkaz:
https://doaj.org/article/4107e3af8b67473b8ee1b1b5f4998581
Publikováno v:
Agriculture, Vol 13, Iss 5, p 1094 (2023)
This research presents the results of tests conducted under field conditions and included measuring the footprint of tires on soil. Two agricultural tires of the same size but different internal structures were tested, 500/50R17 (radial) and 500/50-1
Externí odkaz:
https://doaj.org/article/e0acf3f06fab41c4bad355fa249eefb3
Autor:
Anatoliy Lebedev, Mykhailo Shuliak, Stanislav Khalin, Sergei Lebedev, Katarzyna Szwedziak, Krzysztof Lejman, Gniewko Niedbała, Tomasz Łusiak
Publikováno v:
Agriculture, Vol 13, Iss 5, p 977 (2023)
The purpose of the study is to increase the efficiency of using the tractor hitch weight in traction mode by reducing the uneven distribution of vertical reactions between the wheels. This work is grounded on a methodology that involves summarizing a
Externí odkaz:
https://doaj.org/article/1bce5c4f566f4ebf949e2ce681a5e8e0
Publikováno v:
Agriculture, Vol 13, Iss 3, p 514 (2023)
This paper presents the results of the measurement of tire footprints in soil. The research was conducted under laboratory conditions using soil-filled cases. The research objects were two tires: a radial tire and a bias-ply tire of the same size. Th
Externí odkaz:
https://doaj.org/article/a3ae4152675b45feba2a0bcf2433a036
Publikováno v:
Agriculture, Vol 12, Iss 8, p 1108 (2022)
This study presents the results of research related to agriculture tire deformation under variable vertical load and inflation pressure. The research objects were two tires of the same size and different internal structures. Three levels of inflation
Externí odkaz:
https://doaj.org/article/22243761fc0b488fbc0673dbf2d8f148
Publikováno v:
Complexity, Vol 2020 (2020)
Considering the fuel consumption and soil compaction, optimization of the performance of tractors is crucial for modern agricultural practices. The tractive performance is influenced by many factors, making it difficult to be modeled. In this work, t
Externí odkaz:
https://doaj.org/article/f449a0f5d7824f62b0eed8f76a3d351c
Publikováno v:
Agricultural Engineering. 23:105-116
A liner is the only part of the milking unit which has a direct contact with a cow’s teat. It ensures a correct circulation of body liquids in a teat with its suitable massage and creates conditions for a teat to open and milk to flow out and maint
Autor:
Krzysztof Lejman, Rafał Fedorczuk
Publikováno v:
Agricultural Engineering. 22:33-41
The objective of the paper was to determine the level of circumferential stress in a wall of an open milk tank and to assess the tank wall degree of utilization according to the FKM Guideline calculation algorithm − Analytical Strength Assessment o
Publikováno v:
Complexity, Vol 2020 (2020)
Considering the fuel consumption and soil compaction, optimization of the performance of tractors is crucial for modern agricultural practices. The tractive performance is influenced by many factors, making it difficult to be modeled. In this work, t
Publikováno v:
Agricultural Engineering. 22:39-48
The objective of the paper was to determine the impact of the shearing speed and cultivator tines flexibility on the vertical forces value. The study was carried out in field conditions in sandy clay soil and the average moisture of 11.2%. The vertic