Optimization of Transport Movement Parameters of the Transfer Manipulator for the Quenching Bath According to the Technological Process Requirements

2010 ◽  
Vol 164 ◽  
pp. 411-418 ◽  
Author(s):  
Kastytis Slivinskas ◽  
Vladimir Gichan ◽  
Vytautas Striška ◽  
Algimantas Juozas Poška
Keyword(s):  
Mathematical Models ◽  
Technological Process ◽  
Transfer Process ◽  
Optimal Selection ◽  
Dynamic Evaluation ◽  
Research Results ◽  
Movement Parameters ◽  
Control Of Parameters

The paper analyzes problems related to optimal selection and possible control of parameters of transport movements of the manipulator serving galvanizing and quenching baths. Evaluation of the acceleration and braking processes as well as minimization of the deflection during oscillations of the suspended loading are considered. Mathematical models of the transfer manipulator together with the loading unit were developed, which enable dynamic evaluation of transporting movements. Calculations of the dynamics of the model and simulations of the transfer process were performed. The obtained research results allow to improve the quality of the processing and reduce the emission of pollutions.

RESULTS OF VK-3000 COMPOST MIXER TESTS DURING ACCELERATED BIOTHERMAL MANURE COMPOSTING

2020 ◽  
Author(s):  
O. Cryshtal ◽  
Keyword(s):  
Technological Process ◽  
Crop Yields ◽  
Biologically Active ◽  
Operating Costs ◽  
Survey Method ◽  
Labor Costs ◽  
Research Results ◽  
Temperature And Humidity ◽  
Maintenance Personnel

The purpose of research: a comprehensive assessment of the compost mixer during operation. Research methods: the establishment of design features of the compost mixer was performed by the survey method provided for research sample, study of the quality of the technological process, operational-technological, energy and economic indicators, safety and ergonomics indicators were carried out by standardized methods according to DSTU 7435, DSTU 8424, DSTU 4397, DST 4748, CD 46.16.02.03, SOU 74.3-37-133. Research results: research of the product was carried out under us mixing of compost in piles. The research results show that the compost mixer satisfactorily performs the specified technological process. Mixing of the compost mass is carried out at a speed of 0.5 km / h. This loosens the burt, which is necessary to regulate the temperature and humidity of the burt, remove CO2 and saturate the mass with oxygen, which is necessary to improve the process of aerobic fermentation of the material laid for composting. The capacity of the compost mixer for the main time was 134 tons per hour and 113 tons per hour of variable time (taking into account the time for moving). No additional maintenance personnel are required to operate the unit, the compost mixer is operated by a machine operator. Labor costs are equal to 0.01 man-hours / ton. Direct operating costs are UAH 2.04 / t and an annual load of 760 hours. (3.0-3.5 years per day). Conclusions: During the technological process, the compost mixer provides uniform mixing of organic waste and the formation of a burr for its further fermentation. Maintaining the required temperature and humidity in the burr allows you to maintain the quality of compost and prevents the loss of its value. Compared to other trailed and self-propelled machines, the VK-3000 compost mixer has a performance that is sufficient for medium-sized enterprises. Direct operating costs are UAH 2.04 / t at a mixer price of UAH 900,000 The obtained high-quality biologically active fertilizers, thanks to the use of a compost mixer, provide an increase in crop yields by increasing soil fertility.

scholarly journals Scientific and Technical Aspects of Interference Fits Hydropress Assembling Automation Using Mechatronic Press

2021 ◽  
Vol 346 ◽  
pp. 03066
Author(s):  
Alexander Romanov ◽  
Alexey Shchenyatsky ◽  
Oxana Zorina
Keyword(s):  
Control System ◽  
Mathematical Models ◽  
Technological Process ◽  
Technological Scheme ◽  
Technical Aspects ◽  
Oil Supply

The study object - technological process of interference fits assembling is identified, the scheme with oil supply from the end face is adopted as the technological scheme. Technological pressing equipment is considered, its applicability for hydropress assembling is evaluated. The main aspects of hydropress joints assembling on a base of mechatronic press are established: increasing of assembling performance, its stability. Mathematical models and an algorithm that regulate the process of liquid friction and formation of an oil layer between the contacting surfaces of joint mating parts are developed. The basic requirements for the regulation channels of control system that ensure the quality of hydropress fits during automated assembling are established.

CONTROL IN REAL TIME THE DENSITY OF PRODUCT AT VARIOUS STAGES OF THE TECHNOLOGICAL PROCESS OF SUGAR PRODUCTION

2020 ◽  
Author(s):  
S.B. Kudryashev ◽  
◽  
N.S. Assev ◽  
R.D. Belashov ◽  
V.A. Naumenko ◽  
...  
Keyword(s):  
Real Time ◽  
Technological Process ◽  
Sugar Industry ◽  
Sugar Production ◽  
Production Processes ◽  
Quality Of Products

The article is devoted to solving one of the most important problems of the development of the sugar industry in Russia – the modernization of sugar production processes. Today, sugar production is actively being modernized, shifting most of its processes to the path of avomatization and optimization to improve the quality of products. This article describes one of the main ways to obtain information about the concentration of sucrose in syrup in the production of sugar.

MODIFYING THE TECHNOLOGICAL PROCESS OF A HAULM TOPPER TO IMPROVE THE QUALITY OF TABLE POTATO

2018 ◽  
pp. 7-12
Author(s):  
АNDREI B. KALININ ◽  
◽  
IGOR Z. TEPLINSKY ◽  
ОLEG V. SMELIK ◽  
ALEKSANDRA А. MANOKHINA ◽  
...  
Keyword(s):  
Technological Process

PENGARUH HARGA DAN KUALITAS PRODUK TERHADAP LOYALITAS PELANGGAN ALUMUNIUM

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Widodo Widodo ◽  
Marshelly Chandra Kumala
Keyword(s):  
Data Collection ◽  
Product Quality ◽  
Customer Loyalty ◽  
Significant Influence ◽  
Secondary Data ◽  
Primary Data ◽  
Research Results ◽  
Is Research ◽  
Quality Of Products

<em>The objective of this is research was conducted to find out how the influence of the price and quality of products against customer loyalty at PT. Alakasa Extrusindo Jakarta. This research was conducted in Alakasa Extrusindo PT by doing data collection, through the primary data and secondary data.  The research results showed that the simultaneous price variables  and product quality  has a positive and significant effect against the variable customer loyalty. partially showed that price variables has a positive and significant influence towards customer loyalty. And partially showed that product quality variables  has a positive and significant influence towards customer loyalty</em>

scholarly journals A Simulation Model of Construction Projects Executed in Random Conditions with the Overlapping Construction Works

2021 ◽  
Vol 13 (11) ◽  
pp. 5795
Author(s):  
Sławomir Biruk ◽  
Łukasz Rzepecki
Keyword(s):  
Simulation Model ◽  
Technological Process ◽  
Construction Projects ◽  
Working Time ◽  
Simulation Studies ◽  
Construction Methods ◽  
The Impact ◽  
Construction Works

Reducing the duration of construction works requires additional organizational measures, such as selecting construction methods that assure a shorter realization time, engaging additional resources, working overtime, or allowing construction works to be performed simultaneously in the same working units. The simultaneous work of crews may affect the quality of works and the efficiency of construction processes. This article presents a simulation model aimed at assessing the impact of the overlap period on the extension of the working time of the crews and the reduction of a repetitive project’s duration in random conditions. The purpose of simulation studies is to provide construction managers with guidelines when deciding on the dates of starting the sequential technological process lines realized by specialized working crews, for sustainable scheduling and organization of construction projects.

scholarly journals Perceived Serviceability of Outplacement Programs as a Part of Sustainable Human Resource Management

2019 ◽  
Vol 11 (17) ◽  
pp. 4748 ◽  
Author(s):  
Zdenka Gyurák Babeľová ◽  
Augustín Stareček ◽  
Dagmar Cagáňová ◽  
Martin Fero ◽  
Miloš Čambál
Keyword(s):  
Resource Management ◽  
Human Resource Management ◽  
Human Resource ◽  
Slovak Republic ◽  
Perceived Usefulness ◽  
Negative Effects ◽  
Research Results ◽  
Industrial Enterprises ◽  
Generational Groups

Work and employment are important elements of every working person’s life. If an employee loses his or her job, he or she loses an important and determining part of his or her life. To reduce the negative effects that affect the quality of an employee’s life, outplacement programs were established as a part of sustainable human resource management. Sustainable human resource management emphasises the importance of employee care. Outplacement, for its part, includes support for employees at their last stage in the organization. The main aims of the paper are to present the research results focused on the perceived usefulness of outplacement programs for dismissed employees, to analyse the relationships between the emotions felt by redundancies and other employees as well as the comparison of differences in emotions felt by different generations of dismissed employees. A valid collection tool (research questionnaire) was developed for research purposes and distributed to employees of industrial enterprises in the Slovak Republic. Overall, the research set was composed of n = 692 employees from different generational groups. The research results proved the existence of a relationships between the emotions felt by redundancies and other employees and differences in emotions felt by employees from different generational groups.

Perbaikan Kualitas Produk Batu Bata Merah Dengan Metode Six Sigma-Dmaic (Studi Kasus Cv. Ghatan Fatahillah Karawang)

UNISTEK ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 6-10
Author(s):  
Egar Naufal Ari Satya ◽  
Wahyudin Wahyudin
Keyword(s):  
Quality Control ◽  
Customer Satisfaction ◽  
Six Sigma ◽  
Quality Standards ◽  
Research Results ◽  
Machine Performance ◽  
Fishbone Diagram ◽  
And Control ◽  
Dmaic Method

Abstrak. Dunia industri yang semakin berkembang akan mengakibatkan banyaknya persaingan. Perus-ahaan yang dapat bersaing adalah perusahaan yang dapat menjaga  kualitas produknya dengan baik sehingga dapat memenuhi kepuasan konsumen. Maka dari itu diperlukan pengendalian kualitas. Penelitian ini difokuskan pada penurunan cacat pada produk batu bata merah di CV. Ghatan Fatahillah dengan metode Six Sigma-DMAIC (Define, Measure, Analyze, Improve, dan Control). Dari hasil penelitian didapatkan DPMO sebesar 36.212 dengan nilai sigma 3,29. Jenis cacat yang paling sering terjadi pada batu bata merah yaitu pecah/patah yaitu sebesar 4.327 atau 59,81% dari total keseluruhan produk yang cacat.  Hasil dari tahap analyze dengan fishbone diagram, ditetapkan penyebab dari pecah/cacat, yaitu: pekerja kurang paham standar kualitas, tidak adanya pemeriksaan produk, pekerja kurang paham prosedur kerja, kinerja mesin tidak stabil, pekerja kurang teliti,  jumlah penggilingan tidak menentu, dan komposisi batu bata tidak menentu. Maka perlu dilakukan usulan perbaikan agar dapat mengurangi jumlah produk yang cacat pada batu bata merah. Kata kunci: DMAIC, DPMO, Pengendalian Kualitas, Six Sigma Abstract. The growing industrial world will result in a lot of competition. Companies that can compete are companies that can maintain the quality of their products well so that they can meet customer satisfaction. Therefore, quality control is needed. This research is focused on reducing defects in red brick products at CV. Ghatan Fatahillah with the Six Sigma-DMAIC method (Define, Measure, Analyze, Improve, and Control). From the research results obtained DPMO of 36,212 with a sigma value of 3.29. The type of defect that most often occurs in red bricks is broken / broken, which is 4,327 or 59.81% of the total defective products. The results of the Analyze stage with the fishbone diagram showed that the causes of breakage / defects were determined, namely: workers do not understand quality standards, lack of product inspection, workers do not understand work procedures, unstable machine performance, workers are not careful, the number of mills is erratic, and composition erratic bricks. So it is necessary to make improvement proposals in order to reduce the number of defective products in red bricks. Keywords: DMAIC, DPMO, Quality Control, Six Sigma

Dynamic evaluation of small urban green areas at local level using GEOBIA

2021 ◽  
Author(s):  
Ana-Maria Popa ◽  
Diana Andreea Onose ◽  
Ionut Cosmin Sandric ◽  
Simona Raluca Gradinaru ◽  
Athanasios Alexandru Gavrilidis
Keyword(s):  
Green Infrastructure ◽  
Urban Areas ◽  
Local Level ◽  
Consumption Pattern ◽  
Urbanization Process ◽  
Dynamic Evaluation ◽  
Urban Green ◽  
Urban Green Areas ◽  
Green Areas

&lt;p&gt;Urban green infrastructure has various benefits known as ecosystem services such as regulating, cultural, provisioning and supporting services. Among the provided benefits there are decrease of air temperature, increasing humidity and mitigating urban heat island as regulating services; human-nature relations as cultural services; improving air quality, carbon sequestration as provisioning services and photosynthesis, nutrient and water cycling as supporting services. The high intensity of the urbanization process across the last decades coupled with weak legislative frameworks resulted both in large areas affected by urban sprawl and densification of the existing urban fabric. Both phenomenon generated loss in open spaces, especially green areas. In the context of the sustainable urbanization promoted by HABITAT Agenda, the knowledge related with the distribution, size and quality of urban green areas represents a priority. The study aim is to identify small urban green areas at local level at different time moments for a dynamic evaluation. We focused on small urban green areas since they are scarcely analysed even if their importance for the urban quality of life Is continuously increasing given the urbanization process. We used satellite imagery acquired by Planet Satellite Constellations, with a spatial resolution of 3.7 m and daily coverage, for extracting green areas. The images were processed using Geographic Object-Based Image Analysis (OBIA) techniques implemented in Esri ArcGIS Pro. The spatial analysis we performed generated information about distribution, surfaces, quality (based on NDVI) and dynamic of small urban green areas. The results are connected with the local level development of the urban areas we analysed, but also with the population consumption pattern for leisure services, housing, transport or other public utilities. The analysis can represent a complementary method for extracting green areas at urban level and can support the data collection for calculating urban sustainability indicators.&lt;/p&gt;

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