卷 82, 编号 12 (2015)
- 年: 2015
- ##issue.datePublished##: 15.12.2015
- 文章: 14
- URL: https://journals.eco-vector.com/0321-4443/issue/view/3652
Articles
Calculation features of cycle of reciprocating internal combustion engine operating on gaseous fuel
摘要
Mathematical model and calculation algorithm of cycle of reciprocating internal combustion engine operating on gaseous fuel are presented. Influence of cycle indicators on pressure magnitude is considered, taking into account the features of gaseous fuels application.
Tractors and Agricultural Machinery. 2015;82(12):3-7
3-7
Influence of composition of water-biofuel emulsion on diesel engine performance
摘要
Experimental investigation of Д-245.12С diesel engine operating on water-biofuel emulsions of different composition has been conducted. Possibility of performance improvement with the use of water-biofuel emulsions as a fuel for diesel engines is shown.
Tractors and Agricultural Machinery. 2015;82(12):7-8
7-8
Investigation of stiffness in tension and bending of rubber-reinforced tracks of agricultural tractors
摘要
The article presents the theoretical and experimental investigation of stiffness in tension and bending of rubber-reinforced tracks of agricultural tractors with calculation models development and analytical expressions and their reliability assessment. Influence of load-bearing layer construction and tracks damages on their static loading indices has been experimentally estimated. Main direction of improvement of rubber-reinforced tracks construction has been determinated.
Tractors and Agricultural Machinery. 2015;82(12):9-14
9-14
Features of combined friction in contact patch during cornering of track-type tractor on deforming ground
摘要
The article discusses the question of refinement of analytical dependencies determining the summarized external forces of resistance in the system of differential equations of motion. For describing the interaction of track assembly with the ground in curvilinear motion the model of combined friction is used.
Tractors and Agricultural Machinery. 2015;82(12):14-18
14-18
Determination of performance indicators of machine-tractor unit by tractor characteristic with a sector of constant tractive power
摘要
The article assesses the impact of variable load on energy and technical-economic indicators of machine-tractor unit. Dependencies have been obtained with the assumption that there is a sector of constant tractive power on tractive characteristic of a tractor.
Tractors and Agricultural Machinery. 2015;82(12):18-21
18-21
Influence of parameters of blade rotary working organ on unevenness of furrow bottom
摘要
Theoretical dependencies that allow to determine the height of furrow ridges during the operation of blade rotary working organ depending on its main parameters have been obtained. The use of these dependencies allows to satisfy the agrotechnical requirements in the process of tillage.
Tractors and Agricultural Machinery. 2015;82(12):21-23
21-23
Grain drying with variable heat supply in a tower grain dryer
摘要
Duration and temperature of grain aeration by heated and unheated drying agent have been calculated; the method of grain drying with variable heat supply has been tested in practical work.
Tractors and Agricultural Machinery. 2015;82(12):24-25
24-25
Influence of vibration level of color sorter’s vibratory feeder on the quality of buckwheat seeds cleaning
摘要
The paper presents the results of researches of influence of vibration level of color sorter’s vibratory feeder on the quality of buckwheat seeds cleaning. Dependences of quantity and purity of seeds, of content of hulled kernels and impurities, as well as dependence of thousand-kernel weight on the vibration level of vibratory feeder have been obtained.
Tractors and Agricultural Machinery. 2015;82(12):26-28
26-28
Determination of optimality criteria in the development of hardening technologies
摘要
The article considers the optimality criteria in the development of hardening technologies for critical parts of engineering products. It also presents a forecasting method for product quality indices in the process of high-temperature thermomechanical treatment with deformation by screw compression of hot-rolled heavy-walled pipes.
Tractors and Agricultural Machinery. 2015;82(12):29-33
29-33
Technological efficiency of welding reinforcement of ploughshare point in tillage of heavy loam soils
摘要
The article considers the question of practicability for use of different variations of welding reinforcement in terms of technological efficiency. Solid-metal ploughshares in the as-received state and ones after welding reinforcement of their points have been experimentally investigated.
Tractors and Agricultural Machinery. 2015;82(12):33-37
33-37
Oil strength diagnostics in the process of static cavitation
摘要
Through the laboratory studies of oil strength by its extension in metal bellows, the possibility of use of strength index as a complex and diagnostic index has been determined.
Tractors and Agricultural Machinery. 2015;82(12):37-41
37-41
Development prospects of robotic technologies in plant cultivation
摘要
It is shown that the basis of robotic technologies in plant cultivation is an unmanned mobile power unit for agricultural purposes on wheeled or tracked platform with hybrid power plant, motion control equipment and machine vision device. Technological operations are performed by technological robotic modules mounted on the platform.
Tractors and Agricultural Machinery. 2015;82(12):42-45
42-45
85th anniversary of our journal!
Tractors and Agricultural Machinery. 2015;82(12):46-48
46-48
Index of articles published in 2015
Tractors and Agricultural Machinery. 2015;82(12):49-52
49-52
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