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Tytuł:
Improvement of production system reliability using selected KPIs
Autorzy:
Biały, Witold
Powiązania:
https://bibliotekanauki.pl/articles/104045.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
production
failure
reliability
KPIs
machine efficiency
produkcja
awaria
niezawodność
KPI
wydajność maszyn
Opis:
Machine failures in each production system cause an increase in costs and delays in order execution. Therefore, companies decide to introduce solutions that detect and immediately remove worrying symptoms before more serious consequences occur. Unfortunately, not all failures can be avoided – in such cases, the most important thing is the quick reaction of machine operators, maintenance and production managers. This paper identifies reliability indicators and presents the steps and effects of implementing selected KPIs (Key Performance Indicators), which aim at the production process. For the machines in which a failure occurred in the surveyed period, technical availability, Mean Times Between Failures (MTBF), Mean Down Time (MDT), technical object readiness, and the downtime coefficient were calculated.
Źródło:
Quality Production Improvement - QPI; 2020, 2, 1; 204-213
2657-8603
Pojawia się w:
Quality Production Improvement - QPI
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approach for the Developmentof Energy-Efficient Machine Tools
Autorzy:
Neugebauer, R.
Frieß, U.
Paetzold, J.
Wabner, M.
Richter, M.
Powiązania:
https://bibliotekanauki.pl/articles/971148.pdf
Data publikacji:
2009
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
energy efficiency
machine tool
product development
Opis:
The life cycle costs of machine tools are much higher determined by their energy costs than what is often roughly assessed. The growing demand for consumer goods and especially possibilities of individual mobility in major parts of the developing world - e. g. Asia - will lead to serious problems in meeting the demand for an abundant energy supply and will increase the cost for energy further in the near-term future. Harder efforts are necessary to "reach more with less" - using less energy than today to reach a defined goal in production. The paper deals with a methodology to design machine tools with a high "energy efficiency". Based on the property-driven design methodology by Weber a systematic approach is shown to enhance the design of machine tools. Energy efficiency is a new additional and central property in the design process. To attain these given properties characterisations are determined by the engineer to fulfil these properties. On the developing-path the characterisations are defined in more detail step by step, and after each step it is assured if the accounted properties where met by the defined characteristics. The approach is to first analyse existing machine tools and therefore define prior energy consumers. The identified major consumers are afterwards systematically addressed to reduce their energy consumption. The result is an enhanced machine tool with state-of-the-art energy usage. This addresses the objectives of the EU and takes pressure of the energy supply by reducing the energy demand in production.
Źródło:
Journal of Machine Engineering; 2009, 9, 2; 51-62
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical evaluation of impact factors to the energy consumption of machine tools
Autorzy:
Wittstock, V.
Kolouch, M.
Paetzold, J.
Powiązania:
https://bibliotekanauki.pl/articles/100171.pdf
Data publikacji:
2013
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
energy efficiency
machine tool
statistical analyses
Opis:
In this paper, a method for the evaluation of the energy consumption of machine tools is presented. For this purpose, the energy consumption of various machine tools has been investigated experimentally. In order to increase the evaluation basis, measured values of energy consumption were also taken from literature. The evaluation contains an analysis of various factors concerning the productivity and the size of the investigated machine tools. This analysis is capable of detecting the impact factors to increase the energy-efficiency of production systems. It can further reduce the effort required for data acquisition when various machine tools are compared.
Źródło:
Journal of Machine Engineering; 2013, 13, 2; 79-91
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza porównawcza efektywności pracy maszyn podstawowych w kopalniach węgla brunatnego - problemy z unifikacją wskaźników
Comparative analysis efficiency of work of primary machine in lignite mines - problems concerning standardization of coefficients
Autorzy:
Kozioł, W.
Ciepliński, A.
Machniak, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/349851.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
benchmarking
górnictwo odkrywkowe
węgiel brunatny
wskaźniki wykorzystania maszyn podstawowych
opencast mining
lignite
coefficients of efficiency of primary machine
Opis:
Przedstawiono podstawowe problemy związane z rejestrowaniem, inwentaryzacją danych archiwalnych, obliczaniem i porównywaniem (benchmarking) wskaźników efektywności technicznej pracy wielonaczyniowych koparek podstawowych w kopalniach węgla brunatnego. Problemy te zilustrowano przykładami obliczeniowymi. Ustalenie jednolitej procedury gromadzenia i obliczania wskaźników wykorzystania maszyn podstawowych kopalń węgla brunatnego ma ważny wpływ na ocenę i wzrost efektywności pracy układów wydobywczych.
The following report presents problems concerning recording, the stock-taking of the archival data, calculation and comparing (benchmarking) the coefficients of efficiency of bucket wheel excavator in lignite mines. These problems were illustrated computational examples. The finding uniform procedure of accumulating and calculation coefficients of utilization of primary machine in lignite mines has the important influence on operations review and increase of efficiency technological arrangements.
Źródło:
Górnictwo i Geoinżynieria; 2010, 34, 4; 349-370
1732-6702
Pojawia się w:
Górnictwo i Geoinżynieria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Man-algorithm Cooperation Intelligent Design of Clothing Products in Multi Links
Autorzy:
Han, Chen
Lei, Shen
Shaogeng, Zhang
Mingming, Wang
Ying, Tang
Powiązania:
https://bibliotekanauki.pl/articles/2056307.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
intelligent algorithm
cooperation
clothing design
machine learning
efficiency
Opis:
The changes in technology have led to a synchronous change in the clothing design method, as well as media and artistic aesthetics in the same period. The intelligence algorithm is constantly increasing its participation in development and production in the clothing industry. In this study, a variety of intelligent algorithms, including the parameterised numer state algorithm, Generative Adversarial Networks, and style transfer were introduced into the multi-links of clothing product design and development, such as clothing shape, print pattern, texture craft, product vision, and so on. Then, an innovative clothing design method based on the cooperation of the intelligent algorithm and various human functional roles was constructed. The method improves the efficiency of the multiple links of clothing design, such as generating 10000 printing patterns every 72.12 seconds, and completing the migration of 92.7 frames of the garment process style every second. To a certain extent, this study realizes the scale economy of clothing design and reduces its marginal cost through the unlimited computing power brought about by Moore’s law of digital technology, which provides a reference for the exploration of clothing design in the era of industry 4.0.
Źródło:
Fibres & Textiles in Eastern Europe; 2022, 1 (151); 59--66
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Availability Study of a Longwall Shearer Including Phases of its Operation
Autorzy:
Brodny, Jarosław
Brzana, Estera
Powiązania:
https://bibliotekanauki.pl/articles/2064591.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
mining machines
efficiency
machine availability
OEE
industrial automation
Opis:
The mining production process includes a number of sub-processes, the most important of which is mining the rock mass. In this process, increasingly modern mining machines are being used to replace human labor and to achieve high productivity. Full utilization of the potential of these machines is of great importance for the efficiency of individual stages and the whole process of mining production. In the process of mining the rock mass, the use of machinery of a mechanized longwall system is of fundamental significance. Their availability, efficiency and reliability significantly affect the efficiency of the whole mining production process. The paper refers to the availability of a longwall shearer as the basic machine of a mechanized mining system. Based on the analysis of diagnostic signals, recorded by the industrial automation system, the availability of the longwall shearer was determined for 10 selected cycles of its operation. The analysis also included the phases of these cycles, treated as separate periods of the shearer’s work. This division is a consequence of a great difference in the character of the shearer’s work in particular phases of the operating cycle. The analysis covered the phases of cutting, mining and shunting. The determined temporal waveforms and the shearer’s availability in these phases show their great diversity. Therefore, the results indicated the necessity to analyze the operation of mining machines in their characteristic periods, which can be the basis for minimizing unplanned interruptions in their operation and improving the efficiency of their use.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 200--211
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Software-defined workpiece positioning for resource-optimized machine tool utilization
Autorzy:
Ströbel, Robin
Probst, Yannik
Hutt, Louisa
Fleischer, Jürgen
Powiązania:
https://bibliotekanauki.pl/articles/2200260.pdf
Data publikacji:
2023
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
resource efficiency
workpiece positioning
CNC machine tool
optimisation
Opis:
Advancing climate change, tense world markets, and political pressure steadily increase the demand for resource-optimized production solutions. Herby, the positioning of the raw material in the machine tool is an important factor that has received little attention. Traditionally, this is done centrally on the machine table, which leads to locally increased wear of the feed axis. Furthermore, positioning directly influences energy consumption during machining. Consequently, the longest possible component utilization through optimum wear and energy optimization creates a direct conflict of objectives. To solve this conflict, this paper presents an automated approach for software-defined workpiece positioning and NC-Code optimization regarding the axis-specific energy consumption and the spindle condition of ball screws. An approach for mapping the energy consumption and the directly measured spindle condition is presented. Both represent input variables of the cost function. Approaches for the optimization of the position as well as for the practical implementation are proposed.
Źródło:
Journal of Machine Engineering; 2023, 23, 1; 71--84
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculation of the performance indicators of machine and tractor aggregates using biofuel
Kalkulacja wskaźników wydajności maszyn zagregowanych z ciągnikiem zasilanym biopaliwem
Autorzy:
Anisimov, V.
Ryaboshapka, V.
Ivanovs, S.
Powiązania:
https://bibliotekanauki.pl/articles/334657.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
biodiesel fuel
machine
tractor
efficiency
biopaliwo
maszyna
ciągnik
wydajność
Opis:
The existing methods for the calculation of the performance indicators of machine and tractor aggregates (MTA) do not take into account the effect of biodiesel fuel on their operation and therefore require corrections considering the key and associated factors. The aims of the investigation are clarification of mathematical dependencies in case another kind of fuel is used and development of a methodology for the calculation of the efficiency of the MTA. As a result of simulation of the MTA draft indicators, the effect of biodiesel fuel on the tractive characteristics of the MTA power unit has been investigated under different operating conditions.
Istniejące metody kalkulacji wskaźników wydajności maszyn zagregowanych z ciągnikiem nie biorą pod uwagę wpływu biopaliwa na ich pracę i dlatego wymagają korekt po rozważeniu kluczowych i powiązanych czynników. Kierunki badań są wyjaśnieniem matematycznych zależności, jeżeli inny rodzaj paliwa jest używany i rozwój metodologii dla kalkulacji skuteczności maszyn zagregowanych z ciągnikiem. Jako wynik symulacji wskaźników maszyn zagregowanych z ciągnikiem w fazie projektu, wpływ biopaliwa na pociągowe cechy bloku energetycznego maszyn zagregowanych z ciągnikiem został zbadany na mocy innych warunków eksploatacyjnych.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2016, 61, 3; 16-20
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania porównawcze stosowanych metod wycofywania maszyn rolniczych z eksploatacji
Comparative studies on methods used to take agricultural machinery out of service
Autorzy:
Rzeźnik, C.
Rybacki, P.
Powiązania:
https://bibliotekanauki.pl/articles/292158.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
maszyna rolnicza
recykling
efektywność ekonomiczna
efektywność ekologiczna
farm machine
recycling
economic efficiency
ecological efficiency
Opis:
W pracy, w oparciu o obserwacje, przedstawiono i poddano analizie rzeczywiste informacje dotyczące efektywności różnych rodzajów recyklingu wykorzystywanych do zagospodarowania części maszyn rolniczych. Do analizy wybrano kilka części maszyn, dla których praktycznie stosowane są różne rodzaje recyklingu. Ceny części maszyn rolniczych, wyrobów hutniczych uzyskano z jednostek handlowych, punktów skupu złomu oraz zakładów regeneracyjnych w roku 2006. Przeprowadzona analiza wykazała, że należy szeroko stosować regenerację części, jako przykład recyklingu produktowego.
On the grounds of performed observations, the authors of the paper present and analyse actual information regarding efficiency of various types of recycling methods used to dispose of farm machinery parts. Several parts of machines were selected for the analysis, for which various recycling methods were applied in practice. Prices of agricultural machinery parts and metallurgical products were taken from retail outlets, scrap collection points and reclamation plants in 2006. Completed analysis has proven that machine parts renovation should be broadly used, as an example of product recycling.
Źródło:
Inżynieria Rolnicza; 2008, R. 12, nr 5(103), 5(103); 237-242
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Issledovanie putejj i povyshenija ehffectivnosti ehkspluatacii tekhniki v fermerskikh khozjajjstvakh
Study ways and increase use technology on farms
Autorzy:
Hripachevskyy, N.
Powiązania:
https://bibliotekanauki.pl/articles/76801.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
farm
operational efficiency
farm machine
individual farm
equipment
work
performance
Opis:
The analysis of the use of farm machinery shows that demand for technology equipment provided each farm all complex machinery, satisfied only by 33.7% and the equipment of individual farms main types of machines exceeds the standard value for large farms almost 4 times. Established that sharing technology can reduce 3.5 times the performance of preparatory and final work performance in comparison with the individual using it, while the proportion of time the basic work units increases twice.
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2013, 15, 2
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical Efficiency of Polish Companies Operating in the Machinery Manufacturing Sector
Autorzy:
Kozłowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/409346.pdf
Data publikacji:
2016
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
technical efficiency
machine manufacturing
DEA method
services in manufacturing company
Opis:
The machinery sector plays an important role in the economy of each country providing the technology, machinery, equipment and production lines for other manufacturing sectors. Nowadays, these companies often introduce also services to their portfolio, thus exceeding the boundary between the manufacturing sector and the service sector. These actions are caused by the global trend of shifting towards a service economy and harsh competitive conditions in the market place. The aim of this article is to assess the condition of the selected group of companies operating in the sector of machinery and industrial equipment manufacturing in terms of technical efficiency, and to examine whether the number of services offered by them correlates with the efficiency score. The analysis was made using DEA (Data Envelopment Analysis), which as a non-parametric method, is widely used for studding the efficiency of both business institutions and public organizations, for which the relationship between inputs and achieved outputs (i.e. the production function) is unknown. Data for the study were drawn from the EMIS (Emerging Market Information Service) database, and the sampling was made in accordance with the DEA methodology taking into account factual and statistical methods. Both, companies that offer a wide range of services and those that limit the range of services to warranty support, were analyzed, and then the results were compared and discussed.
Źródło:
Research in Logistics & Production; 2016, 6, 5; 443-453
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ekologiczno-eksploatacyjne aspekty w procesie użytkowania i odnowy maszyn i urządzeń. Koncepcja modelu systemu regeneracji części i odnowy zespołów wymiennych maszyn rolniczych w aspekcie ochrony środowiska (cz. II)
Ecological and operating aspects in the process of machinery and equipment use, and renovation. The concept of a model system for regeneration of parts and renovation of replaceable units in farm machines in the aspect of environment protection (part II)
Autorzy:
Tomczyk, W.
Powiązania:
https://bibliotekanauki.pl/articles/289278.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
model
system
wskaźnik
efektywność
maszyna rolnicza
agricultural machine
index
efficiency
Opis:
Artykuł zawiera założenia abstrakcyjnego modelu systemu organizacji regeneracji części wymiennych zbudowanego w oparciu o teorie systemów. Model ten łączy w sobie główne elementy systemu w realiach założeń gospodarki rynkowej w Polsce. Omówiono również główne parametry wskaźnikowe zasad jego funkcjonowania.
The article contains guidelines for an abstract model of a system allowing to organize regeneration of replaceable parts, built on the basis of systems theories. This model combines main elements of the system in the reality of market economy guidelines in Poland. Moreover, the paper discusses main indicator parameters of its functioning principles.
Źródło:
Inżynieria Rolnicza; 2010, R. 14, nr 3, 3; 225-230
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Industrial Automatics Systems for Monitoring of Operational States of Machines
Autorzy:
Brodny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2064989.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
production process
industrial automatics systems
longwall shearer
efficiency
machine diagnostics
Opis:
In the recent years, industrial automatics practically was used in all domains of economy. Particularly, it concerns to manufacturing processes and technological processes. It seems that in these systems, very important meaning have measuring and control devices, installed practically in all production machines. Operational parameters of machines, registered by these systems are the kind of source of very important information, which not always are utilized in proper way by the users. Particularly, it concerns mining branch, where more technically advanced machines are used. However, not always their users utilize the big potential of these machines. For this reason, in the paper there are presented results of studies, enabling the application of industrial automatic systems to analyze operation states of machines, based on registered parameters of these machines. Longwall shearer was submitted to detailed analysis as the most important machine in mining exploitation process. There are presented proposals for application registered data for determine effectiveness of its utilization and to diagnose its technical condition. Presented paper is aimed to realize and encouraging users to wider practical use of the capabilities of industrial automation systems. This should improve efficiency and safety of production processes.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2018, 1, 1; 315--321
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Future sustainable maritime sector: energy efficiency improvement and environmental impact reduction for fishing carriers older than 20 years in the fleet. Part II
Autorzy:
Yalama, Viktor
Yakovleva, Olga
Trandafilov, Volodymyr
Khmelniuk, Mykhailo
Powiązania:
https://bibliotekanauki.pl/articles/32906972.pdf
Data publikacji:
2022
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
blue economy
energy efficiency
fishing carrier
vapor compression refrigeration machine
Opis:
For the maritime sector to be sustainable and to have an intact blue economy, shipowners should be ready to implement Ship Energy Efficiency Management Plans alongside energy efficiency projects. The problem for organizations and shipowners having fishing carriers older than 20 years is highlighted and the following challenges arise for decision-making authorities. To keep such ships in the fleet for the next decade, shipowners should deploy energy efficiency projects for marine system retrofitting to improve energy efficiency and meet environmental regulations. An energy audit is performed and an energy efficiency program is proposed with guidelines for regulations that are currently coming into force. To improve energy efficiency, reduce the environmental impact, and cut fuel consumption costs, marine system retrofitting is done, in a particular case, with two options proposed. The first is a cascade refrigeration system with hydrocarbons and carbon dioxide, where the shipowner gains an energy efficiency improvement of about 20%. The second option is a two-stage refrigeration system with ammonium as the environmentally friendly refrigerant, which improves the energy efficiency by about 26%. Technical and economic issues have been discussed.
Źródło:
Polish Maritime Research; 2022, 3; 78-88
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wymagania i rozwiązania w sieciach WLAN nowej generacji
New Generation WLANs Demands and Solutions
Autorzy:
Masiukiewicz, Antoni
Powiązania:
https://bibliotekanauki.pl/articles/439891.pdf
Data publikacji:
2018
Wydawca:
Akademia Finansów i Biznesu Vistula
Tematy:
802.11ax
WLAN o dużej wydajności
komunikacja urządzenie-urządzenie
HEW-high efficiency WLAN
machine-to-machine communication
Opis:
Trwają intensywne prace nad rozwojem standardu 802.11. Udostępniono pierwsze specyfikacje standardu 802.11ax. Zakończenie prac jest przewidywane w 2019r. Nowy standard ma zapewnić radykalną poprawę rzeczywistych parametrów tak, aby spełnić niełatwe wymagania stawiane przed tą technologią w kolejnych dekadach. W artykule omówiono kluczowe ograniczenia aktualnych wersji standardu oraz kierunki działań i proponowane rozwiązania. Przedstawiono stan aktualnych prac nad rozwojem standardu.
Work is underway on the development of 802.11. The first 802.11ax specifications are available. Completion of the work is expected in 2019. The new standard is intended to provide a dramatic improvement in real-world performance in order to meet the challenging requirements of the technology in the decades ahead. The article discusses the key limitations of the current version and the directions and suggested solutions. The state of current development work on the standard is presented.
Źródło:
Kwartalnik Naukowy Uczelni Vistula; 2018, 2(56); 242-256
2084-4689
Pojawia się w:
Kwartalnik Naukowy Uczelni Vistula
Dostawca treści:
Biblioteka Nauki
Artykuł
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