Theoretical time determination of destruction
of “corn-cob- pedicle” connection under separation
of corn-cob on stripper of corn-harvester under conditions of static and dynamic loads has been considered in this article.
We establish the following parameters for an auxiliary rechargeable power plant: power rating of the inverter, battery capacity, and power output of the wind turbine, operational wind speed, and design dimensions of the wind turbine. It is shown, that a wind-driven
rechargeable power plant is most cost-effective at the wind speed of 6 m/s
Protective forest plantations, shelter belts and plantings along the highways of Central - Black Earth region and southern Russia are badly damaged, and in some areas destroyed. Therefore, they can not perform their functions and require major reconstruction or restoration. The most resistant and applicable trees and shrubs to create protective forest plantings are: maple, ash, elm species and three-thorned acacia, honey-locust, white and yellow acacia, and other legumes breeds with high drought tolerance, disease resistance, technogenic pollution and pest damage. For the creation and restoration of protective forest plantations we require seeds of these species containing pericarp. In Voronezh State Forestry Academy we have carried out a scientific research for creation of a machine for extracting seeds from the legumes. Analysis of the results of scientific research of prototyping machines showed that they were made without considered technological and mechanical properties of the legumes theoretical researches workflow machines for extracting seeds from the legumes and scientific basis of design parameters and operating modes. In this article we have a presentation of the experimental sample of the machine for extracting seeds from the legumes and theoretical investigation of the workflow in the batch hopper. According to the results of the study, we have obtained a mathematical expression, which allows you to define the parameters and modes of operation of a brush-grater device
One can see some density irregularity within the roll
in the baler with a chamber of constant volume. We
have found out that the maximum density of hay roll
width (the baler width) is observed in the middle part.
This is due to the shape of the hay roll entering the
baler. To even the hay rolls they have mounted some
rotating disks having some inclined spring pins above
the baler. To improve the roller distribution the disks
above the baler have been pushed forward forming a
tapering gap. The evening discs rotating above the
moving roll will cause some relative motion of hay
particles. The interaction of the evening disks with
the hay roll in the vertical plane will be determined
by the elasticity of the hay roll and the weight of the
frame with the disks. We have studied the trajectories
of hay particles motion with the help of MathCad
program. We have had the following initial
parameters: the degree of compaction (decrease of the
roll height when evening), the friction coefficient, the
angle rate of the evening disks, the number of pins and the speed of the hay roll. As a result we have got
the trajectories of the hay particles motion when the
evening disks functioning. The analysis of the
trajectories has allowed to establish some basic
parameters of the evening device such as the distance
of 0.15…0.2 m between the pins; the degree of
compression while evening 20...25 %, the angle rate
of the evening discs 23...30 rad / s and the diameter
of the evening disc 0.74 m. The application of the
evening device in the form of the disks with pins
provides a uniform distribution of hay particles
edgewise of the baler ensuring preliminary hay roll
seal press before passing to the baler pressure
chamber that contributes to getting the rolls with
larger mass and a uniform distribution of hay density
inside the roll
The article gives the description and grounding of the rational design factors of the possing machine with the purpose to avoid bulbs damages and provide the maximum capacity of the improved separating hump
Now in Russia there is a problem of utilization of vehicles.
The article reveals questions of the advisability
to study boundaries of cars recycling: pricing model
with repair, options for vehicles used after repairs, the
models for definition of the boundaries of cars recycling
In the article we have shown the results of theoretical optimization of quality coatings produced by plasma spraying with simultaneous electro-mechanical processing. The optimal process parameters
Chisel, theoretical principles, new tools, calculation of energy parameters of mechanized processes of tillage are presented in this article
In the article, we present a simulation mathematical
model of an energy-supplying complex of apiary
based on hybrid solar plant that establishes the
relationship between the design and the operating
parameters of the complex with when having
conducive winter maintenance of bees. Modeling
methodology involves the selection into a
mathematical model of multiple levels: level of
processes, that directly related with changing of
climate parameters inside the hive depending on
external factors, level of processes of functioning of
the individual components in the complex, which are
not directly connected with the processes of changing
of climate parameters inside the hive, however, are
necessary to ensure favorable conditions for wintering
of bees. We have conducted the simulation of the
complex based on hybrid solar plant for conditions:
the location of apiary in the Republic of Mari El
(building for placement of bees for 250 bee colonies,
the number of photovoltaic modules – 10, wind power
plant area – 18 m2
, the capacity of the battery – 50
A·h, the heat accumulator capacity – 3 m3
, the time
interval – from 14 October to 14 April). As a result of
simulation obtained graphs of the changing the
thermal battery coolant temperature, the voltage at the
battery terminals, the power wind turbine and PV
modules, the electrical energy consumption
We have presented a simulation mathematical model of a complex for climate control of beehives that establishes the relationship between the performance parameters of the complex and efficiency parameters with a condition of descent winter maintenance of bees