scholarly journals RESULTS OF THE PRODUCTION INSPECTION OF THE AUTOMATIC MILK WASHING LINE OF MILKING INSTALLATIONS

Author(s):  
Ihor Babyn

Creation of automated technical and technological support of the system of washing milking installations, which intensifies the process without additional costs, becomes of paramount importance in solving the problem of improving the quality of milk. The purpose of the research is to conduct a production inspection of the developed automated system for flushing milk lines of milking parlors. On the basis of the received mathematical models of process of work of washing of milking installations with air and hydro-injectors, and also the photodetector of definition of pollution of the milk line of the milking parlor the automatic system of its washing is developed. energy consumption. As a result of industrial inspection of automatic milking line washing systems, it was found that the lowest value of microbiological contamination of milk (number of mesophilic aerobic and facultative-anaerobic microorganisms) is observed for the variant with adaptive washing duration and adaptive mode of air injectors. For UDE-16 the Christmas tree makes 82 thousand CFU/cm3 (extra grade of milk), and for UDM-100 "Bratslavchanka" – 248 thousand CFU/cm3 (the highest grade of milk). As a result of production inspection of the automatic milking line washing system of milking installations, it was found that the lowest values of water consumption are observed for the variant with the shortest washing duration (5 min/10 min/ 5 min) For UDE-16 the Christmas tree makes 185 l, and for UDM-100 "Bratslavchanka" – 268 l. The lowest value of energy consumption is observed for the basic version of the flushing system (without additional equipment). For UDE-16 the Christmas tree makes 13,5 kWh, and for UDM-100 "Bratslavchanka" – 21,4 kWh.

Author(s):  
Анатолий Суслов ◽  
Anatoliy Suslov ◽  
Дмитрий Петрешин ◽  
Dmitriy Petreshin ◽  
Олег Федонин ◽  
...  

A single-stage technological support of operation properties of machine parts and their joints is based on the integration and on the automated solution of problems of a designer and technologist for the definition of optimum conditions for machining parts at the stage of design-technological pre-production. A joint use of a self-learning technological system and an automated system of scientific investigations of contact stiffness will allow ensuring a required value of the operation property of machine parts and their units with the specified accuracy.


Author(s):  
Fu-qiang Chen ◽  
Zhi-xin Gao ◽  
Jin-yuan Qian ◽  
Zhi-jiang Jin

In this paper, a new high multi-stage pressure reducing valve (HMSPRV) is proposed. The main advantages include reducing noise and vibration, reducing energy consumption and dealing with complex conditions. As a new high pressure reducing valve, its flow characteristics need to be investigated. For that the valve opening has a great effect on steam flow, pressure reduction and energy consumption, thus different valve openings are taken as the research points to investigate the flow characteristics. The analysis is conducted from four aspects: pressure, velocity, temperature fields and energy consumption. The results show that valve opening has a great effect on flow characteristics. No matter for pressure, velocity or temperature field, the changing gradient mainly reflects at those throttling components for all valve openings. For energy consumption, in the study of turbulent dissipation rate, it can be found that the larger of valve opening, the larger of energy consumption. It can be concluded that the new high multi-stage pressure reducing valve works well under complex conditions. This study can provide technological support for achieving pressure regulation, and benefit the further research work on energy saving and multi-stage design of pressure reducing devices.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Magdalena Kolenda ◽  
Dariusz Piwczyński ◽  
Marcin Brzozowski ◽  
Beata Sitkowska ◽  
Piotr Wójcik

AbstractThe aim of the present study was to evaluate the changes in selected production and functional traits of Polish Holstein-Friesian cows after switching from a conventional (CMS) to an automatic milking system (AMS). The study consisted of 3398 Polish Holstein- Friesian dairy cows, from 16 herds in which CMS was changed to AMS. Cows were in their 1st (L1) or 2nd lactation (L2). The data consisted of milk yield [MY, kg], fat content [FC, %], protein content [PC, %], dry matter [DM, %], lactose content [LC, %], urea content [MU, mg/l], somatic cell count [SCC, thous./ml] and score [SCS, log]. The milking system had a significant impact on milk yield, fat, lactose, dry matter and urea contents. Regardless of lactation number, milk derived from CMS was characterised by higher values for FC, PC, DM SCC and SCS, while milk from AMS had higher MY, LC and MU. Multifactor analysis of variance also confirmed significant effect of herd, season, herd × milking system interaction on SCS in milk of cows in L1. In the studied herds change from CMS to AMS was evaluated separately for cows in L1 and L2. The transitioning from CMS to AMS resulted in the decrease of fat content in 6 L1 and 7 L2 herds, dry matter in 8 L1 and 5 L2 herds. SCS in milk also decreased in 4 L1 and 5 L2 herds. The change caused the increase of MY in 11 L1 and 9 L2 herds, lactose content in 6 L1 and 4 L2 herds and urea content in 9 L1 and 10 L2 herds. AMS may positively affect milk yield and health status, however, the change of milking system should be also accompanied by the change in herd management.


Author(s):  
Анатолий Суслов ◽  
Anatoliy Suslov

The solution of the problem of the assurance of competitive ability and quality of engineering products during their design and manufacturing is stated. The dependence for the definition of a complex factor of engineering product competitive ability is shown. The concept of life optimum is given. The structural procedures for the solution of problems of a designer and technologist for the assurance of engineering product quality are shown.


2016 ◽  
Vol 5 (1) ◽  
pp. 60-69 ◽  
Author(s):  
Pablo R. Velasco González

Tiziana Terranova draws attention to the necessity of questioning how algorithmically enabled automation works “in terms of control and monetization” and “what kind of time and energy” is being subsumed by it (Terranova 387). Cryptocurrencies are payment technologies that automate the production of money-like tokens (Bergstra and Weijland) following algorithmic rules to maintain a fixed production rate. Different kinds of energy and residues, which are not always acknowledged, are involved in this process. Here I distinguish between two closely linked layers in the Bitcoin token production: first, an algorithmic layer, which contains the instructions and rules for the creation of bitcoins; second, a hardware layer, which performs and embodies the former. While these layers work together, I will argue that they enact their own kind of logics of energy and waste. I will begin at the more visible end of the production cycle, the hardware layer, where the definition of waste and energy consumption is shared with many electronic devices; then I will trace back its algorithmic layer, which as I argue, follows a different logic.


2016 ◽  
Vol 2016 (3) ◽  
pp. 224-232
Author(s):  
Наталия Кузнецова ◽  
Nataliya Kuznetsova ◽  
Татьяна Карлова ◽  
Tatyana Karlova ◽  
Александр Бекмешов ◽  
...  

The article is devoted to the application of a special software complex for the definition of an opti-mum set of means of urban public groundsurface conveyances. In the paper are presented the existing software solutions meant for the definition of an optimum route, their basic merits and demerits are revealed, the methods for the solution of a problem in search of an op-timum set of means of ground surface public conveyance taking into account a maximum amount of factors affecting a motion speed are offered. The authors have presented a structure of an automated system for a choice of an optimum structure in ground surface public conveyances and also there are shown fragments of a corresponding program code and database queries. In the paper particular attention is paid to the working modes of an appendix presented, in particular, for the situation in the absence of customer’s device connection to the basic computer system.


1991 ◽  
Vol 113 (2) ◽  
pp. 122-126
Author(s):  
M. De Lucia

The effects of using oxygen to partially or wholly replace fuel air in small-size melting furnaces were studied over a range of application fields. Following definition of the useful parameters, testing was conducted on furnaces for melting glass, ferrous metals (pigiron), nonferrous metals (copper alloys), and ceramic materials. In all cases, oxygen-enrichment was found to provide significant energy savings, as well as notable advantages in terms of both plant output and energy consumption.


2020 ◽  
pp. 56-61
Author(s):  
A. A. Goncharov ◽  

Modern designs of volumetric machines have parts containing complex-profile cycloidal screw surfaces as working bodies. The shaping of some types of this surfaces, such as the rotor surface of a conical singlescrew compressor, is possible only through the use of non-profiled tools and using specialized machining strategies. In view of the high prospects of using such structures in astronautics, robotics, medicine in the mining industry and metallurgy, there is an urgent problem of cycloidal helical surfaces accuracy during their processing on CNC machines. This work is devoted to the study of this problem. In the course of the study, a technological approach was chosen that provides control of the shape accuracy parameters when processing these surfaces, which consists in programmed feed control during processing. An analytical formalized algorithm for calculating the amount of feed change was integrated into an automated system for calculating the tool path, which made it possible to carry out experimental processing of a series of samples. The results of a metrological study of the accuracy of the shape of samples processed using a software-implemented technique for increasing the accuracy of the cross-section of cycloidal helical surfaces are presented. The efficiency of application of the proposed technique in the processing of miniature cycloidal helical surfaces is shown. Therefore, for the singlescrew micro-dispenser selected as a characteristic part of the rotor, it was possible to reduce the deviation from the circularity of the crosssectional profile of the cycloidal screw surface by more than three times. This demonstrates the possibility of increasing the accuracy of processing a complex-shaped surface by modifying the code of the control program without using additional equipment or more advance tools.


2020 ◽  
pp. 26-33
Author(s):  
S. A. Smotrova ◽  
V. I. Ivanov ◽  
A. V. Smotrov ◽  
A. N. Kuskova ◽  
Yu. V. Mantrova

One of the characteristic aircraft damages is impact by foreign object. In subsequent operation, the presence of impact damages to airframes made of polymer composite materials (PCM) leads to a violation of their structures and integrities. To avoid accidents it is necessary to identify and measure the parameters of such damages. The paper analyzes literature data, impact tests results and ultrasonic control of PCM samples. PCM samples represent plates. Dependences of PCM samples defect size on impact energy are revealed. It is shown that at energy of effect in a range 10…45 J damages with the linear sizes 25…70 mm are formed. The difference of the damages sizes on facing and turnaround surfaces of PCM samples is noted. The largest number of procedures in aviation is visual inspection with the naked eye or using any additional equipment. Its main disadvantage in relation to composite products is the fundamental inability to detect barely visible impact damage and internal defects that do not extend to the surface. The technology of impact damage detection using special impact -sensitive luminescent smart coatings with optical properties allows to improve the visual inspection procedure qualitatively. The result of the research is to define the permissible range of coating sensitivity. The luminescent smart coating operating range is determined: 10…20 J. Luminescent smart coating is developed for detection of barely visible impact damage on composite airframes.


1990 ◽  
Vol 112 (4) ◽  
pp. 392-400 ◽  
Author(s):  
G. S. Berns ◽  
M. L. Hull ◽  
H. A. Patterson

This article describes an automated system designed to study the complete flexibility functions of the knee in vitro. The system allows five degrees of freedom with flexion angle being fixed, though adjustable from 0 to 45 deg. Loads corresponding to each of the five motions can be applied independently and in any combination. The effect of weight bearing on knee flexibility can also be studied by including axial force as one of the five loads. The relative motions are measured with LVDT’s and RVDT’s, and the loads are measured with strain gage transducers. The system is digitally controlled with a closed feedback loop, allowing for any combination of programmed loads. A control algorithm on an IBM PC/AT monitors the loads on each axis and continuously adjusts stepping motors to correctly follow programmed loads. The machine coordinate system corresponds to clinically accepted definitions of motion yet retains sequence independence for rotations. Results are presented demonstrating the repeatability of using a functional definition of axis placement to align the leg within the machine. Results are also presented demonstrating the utility of the full flexibility functions of the knee, notably in the determination of significant load interactions between anterior/posterior force and internal/external torque, and varus/valgus torque and internal/external torque.


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