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Wyświetlanie 1-15 z 53
Tytuł:
Process monitoring in end milling using polar figures
Autorzy:
Goetz, Sven
Schraknepper, Daniel
Faustini, Gabriel
Bergs, Thomas
Powiązania:
https://bibliotekanauki.pl/articles/100129.pdf
Data publikacji:
2020
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
process monitoring
tool wear
polar figur
Opis:
Knowledge of the tool wear state in machining has become an important issue in research and industrial application. Current systems use the spindle power or cutting force as measured variable and refer it to a taught set point. However, this method lacks the ability to adapt to new work piece geometries. A new approach focusses on the tool instead of the work piece, and uses a sensory tool holder with integrated strain gauges. This tool holder provides polar figures whose shapes relate to the engagement conditions and whose area is a function of the tool load. As the tool load increases with tool wear, the area of the polar figures provides information about the tool wear status, and with knowledge about the engagement conditions, the model can be calibrated.
Źródło:
Journal of Machine Engineering; 2020, 20, 3; 95-105
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A service-oriented reconfigurable process monitoring system - enabling cyber physical systems
Autorzy:
Morgan, J.
O'Donell, G. E.
Powiązania:
https://bibliotekanauki.pl/articles/100043.pdf
Data publikacji:
2014
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
communication
manufacturing system
process monitoring
decentralization
Opis:
Communication is an essential requirement for collaborative manufacturing systems. However the diversity of communication media and protocols in machine tools, automation equipment, and associated proprietary software, presents a challenge for enabling capable, extensible and re-configurable process monitoring systems. Additionally, as process control systems evolve from centralised hierarchical structures to decentralised heterarchical communities, enabling media and tools are required to provide interoperability between systems and subsystems. The focus of this research is to introduce a manufacturing decentralised process monitoring architecture that utilises a service-oriented architecture framework for network-wide dynamic data acquisition and distribution. The system design is created using a combination of service-oriented architecture topology and technical modelling. Service-oriented communication structure and capability is given particular focus, resulting in a comparative study of message structures and communication speeds. The resultant system is modular in structure, reconfigurable, network-distributable, interoperable, efficient, and meets real-time requirements.
Źródło:
Journal of Machine Engineering; 2014, 14, 2; 116-129
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Data interoperability for reconfigurable manufacturing process monitoring systems
Autorzy:
Morgan, J.
O'Driscoll, J.
O'Donell, G. E.
Powiązania:
https://bibliotekanauki.pl/articles/99743.pdf
Data publikacji:
2013
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
agent based design
process monitoring
data interoperability
Opis:
The ability for manufacturing organisation to be responsive to changing market conditions is imperative for sustainable market competitiveness, and enabling self preservation. Responsive behaviour requires the incorporation of not only robust sustainable manufacturing process chains, but the functional capacity to facilitate reconfiguration and adaption. Manufacturing process chains require process monitoring and condition based monitoring systems to achieve high accuracy manufacturing systems, sustainable production capability, and resource efficiency. The focus of this research is aimed at developing a novel data interoperability architecture to enable the creation of reconfigurable process monitoring systems. To achieve reconfigurable process monitoring capability an information communication paradigm known as agent based design is reviewed, and an emerging agent based standard known as MTConnect is also reviewed. Through this research a novel data interoperability system is developed and defined to enable dynamic data acquisition for reconfigurable process monitoring. A case study is carried out to demonstrate the validity of the architecture to achieve multi data stream unification. This case study demonstrates the ability to actively condition monitor a HURCO VM2 three axis CNC machine dynamically, through the measurement of machine energy requirements and vibration, which are examples of process variables associated with condition based machine monitoring.
Źródło:
Journal of Machine Engineering; 2013, 13, 1; 64-79
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring system for high speed wood machining processes
Autorzy:
Hoffmeister, H.-W.
Luig, M.
Wittmer, R.
Schuller, B.-C.
Strauss, H.
Biehl, S.
Powiązania:
https://bibliotekanauki.pl/articles/99458.pdf
Data publikacji:
2010
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
process monitoring
toolholder
piezoresistive thin film sensor
Opis:
The improvement of product quality as well as the increase of production efficiency is inevitable in modern manufacturing processes. In this regard an increased cutting speed causes dangerous process situations in respect to operator safety and machine damage. In addition to that wood working machines generally do not use process monitoring systems, e. g. tool breakage monitoring. The aim of this project was the development of a process monitoring system to increase safety in wood working processes. Therefore, the Institute of Machine Tools and Production Technology (IWF) and the Fraunhofer-Institute of Surface Engineering and Thin Films (FhG IST) developed a sensor-integrated tool holder, which is able to detect clamping forces and unbalances during the process. The hollow shank taper 'HSK-63-F' was chosen as tool holder as it is used in the majority of applications in wood working processes. The clamping and balance conditions are measured by an embedded piezo-resistive thin film sensor at the planar contact surface. To ensure a contact-free signal transmission a telemetric system was used. The interaction between this monitoring system and the machine control automatically activates an emergency stop. Hence, a system was developed which significantly increases the process safety during the run-up and the idle speed phase of the spindle.
Źródło:
Journal of Machine Engineering; 2010, 10, 2; 48-56
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method of monitoring of the grinding process with lapping kinematics using audible sound analysis
Autorzy:
Deja, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/2171774.pdf
Data publikacji:
2022
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
audible sound analysis
grinding
electroplated tool
process monitoring
Opis:
Utilising microphones as audible sound sensors for monitoring a single-side grinding process with lapping kinematics is presented in the paper. The audible sound generated during grinding depended on the cutting properties of electroplated tools with D107 diamond grains and different thicknesses of the nickel bond. The tool wear affected the obtained technological effects such as material removal rate and the surface roughness of Al2O3 ceramic samples. The relationship between the quantities that characterise the sound signal and the surface roughness of machined surfaces was examined with the use of spectral analysis of the sound signal in the frequency domain with a focus on the Ra parameter. The decreasing amplitude indicated a better surface finish, down to Ra = 0.23 μm. The developed method and the obtained results will facilitate the practical use of the electroplated tools in the lap-grinding technology without interrupting the process before obtaining the required surface roughness.
Źródło:
Journal of Machine Engineering; 2022, 22, 4; 71--81
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptive SOA stack-based business process monitoring platform
Autorzy:
Dadel, P.
Balawajder, M.
Radziszowski, D.
Zieliński, K.
Powiązania:
https://bibliotekanauki.pl/articles/305656.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
BPM (Business Process Monitoring)
BAM (Business Activity Monitoring)
OSGi
Adaptive SOA
Opis:
Executable business processes that formally describe company activities are well placed in the SOA environment, as they allow for the declarative organization of high-level system logic. However, to fully benefit from that element of abstraction, appropriate business process monitoring systems are required for both technical and non-technical users. Unfortunately, current solutions remain unsatisfactory. This paper discusses the problem of business process monitoring in the context of the service orientation paradigm, in order to propose an architectural solution and provide implementation of a system for business process monitoring that alleviate the shortcomings of the existing solutions. Various platforms have been investigated to obtain a broader view of the monitoring problem and to gather functional and non-functional requirements. These requirements constitute input for further analysis and system design. The monitoring software is then implemented and evaluated according to the specified criteria. An extensible business process monitoring system was designed and built on top of OSGiMM – a dynamic, event-driven, configurable communications layer that provides real-time monitoring capabilities for various types of resources. The system was tested against the stated functional requirements, and its implementation provides a starting point for further work. It has been concluded that providing a uniform business process monitoring solution that satisfies a wide range of users and business process platform vendors is a difficult endeavor. It is furthermore reasoned that only an extensible, open source monitoring platform based on a scalable communication core has a chance to address all current and future requirements.
Źródło:
Computer Science; 2014, 15 (2); 173-195
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the maturity of process monitoring in manufacturing companies
Autorzy:
Czerwińska, Karolina
Pacana, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/26073897.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
zarządzanie i jakość
proces
monitorowanie procesu
doskonalenie
process
process monitoring
improvement
Opis:
The economic progress of recent years has contributed to the fact that both the quality of products and services offered and ISO standardization have become priority criterion that determines the success of manufacturing enterprises. Therefore, the monitoring and supervision of processes carried out in manufacturing companies is a key issue. These aspects support the achievement of key economic and quality objectives. The paper presents the results of a study on manufacturing enterprises in the context of process monitoring maturity. The research objective of the study was to determine the level of maturity in the use of process monitoring techniques and methods in manufacturing enterprises. The subject of the research were the techniques and methods used by the surveyed enterprises in such areas as: production management, machinery park management, warehouse management, transport management, inventory and supply management and IT tools. In order to determine the level of maturity, the author’s model was used, according to which the level of maturity of a manufacturing enterprise in the area of process monitoring depends on the instrumentation that is used in it.
Źródło:
Production Engineering Archives; 2022, 28, 3; 245--251
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Feature extraction of molten pool for laser welding quality real-time inspection
Autorzy:
Zhang, J
Yin, H
Huang, H
Yang, R
Yang, J
Li, Y
Powiązania:
https://bibliotekanauki.pl/articles/173597.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
laser materials processing
process monitoring and control
image analysis
Opis:
This paper proposed an image feature extraction method for laser welding molten pool inspection based on cellular neural network. TC4 titanium alloy thin plates were welded by Nd:YAG pulsed laser. A coaxial machine vision system was designed to acquire molten pool images. An auxiliary lighting source was employed to improve the molten pool image quality. By analyzing molten pool images, the welding defects such as fenestration or insufficient depth were identified. These results can be used as a feedback signal for laser power control. Experimental results showed that the proposed method can be used to improve laser welding quality.
Źródło:
Optica Applicata; 2015, 45, 4; 523-533
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Failure mode analysis to define process monitoring systems
Autorzy:
McLeay, T.
Turner, M. S.
Powiązania:
https://bibliotekanauki.pl/articles/100045.pdf
Data publikacji:
2011
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
fmea
process monitoring
Bayesian networks
PCA
sensor fusion
acoustic emission
Opis:
The high costs of using skilled operators in production processes has built a demand for reduced manning, 'lights out machining' manufacture. Process monitoring systems have become a widely researched area in recent years since there is a need for intelligent systems to replace the manual intervention in existing processes. Furthermore, using modern sensors and signal processing techniques, monitoring systems can obtain more informatio about a process and therefore reduce costs further though maximised life of cutting tools, optimised cutting parameters and reduced scrap or re-work. With many application areas available, such as tool condition monitoring, chatter avoidance or feedback control of cutting parameters, it is not always apparent what the key aspects required by an intelligent monitoring system are. In addition, different machining processes have different demands and limitations for monitoring. This paper considers an analytical approach to define the requirements of a monitoring system. A process failure mode effect analysis (FMEA) is carried out to determine the weaknesses of current production processes. From this analysis, the relationships between failures, causes and effects can be used to populate conditional relationships between process faults and sensor signal features in a monitoring system.
Źródło:
Journal of Machine Engineering; 2011, 11, 4; 118-129
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Supervision of production of metal roof tiles
Nadzorowanie procesu produkcji blachodachówki
Autorzy:
Płaska, S.
Cechowicz, R.
Wolszczak, P.
Powiązania:
https://bibliotekanauki.pl/articles/176220.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
positioning
positioning error
process monitoring
corrective actions
automation
pozycjonowanie
błąd pozycjonowania
monitoring procesu
działania zaradcze
automatyzacja
Opis:
This paper presents the characteristic of the production of sheet metal roofing tiles. The basic problem affecting the quality of the product was identified to be the repeatability of the metal sheet positioning and the cross ribbing. A measurement and control system was proposed for controlling the movement of the metal sheet and to automatically correct positioning errors. Presented results illustrate the effects of the solutions in the industrial environment.
W pracy przedstawiono charakterystykę produkcji pokryć dachowych z blachy – blachodachówki. Wskazano podstawowe kryterium oceny jakości wyrobów: uzyskanie powtarzalności podziałki przetłoczeń poprzecznych. Przedstawiono rozwiązania układu do pomiaru przemieszczenia podawanej blachy, pomiaru podziałki przetłoczeń oraz rozwiązania automatycznego korygowania błędów pozycjonowania i nadzorowania linii wytwórczej. Przeprowadzono analizę efektów zastosowanych rozwiązań w warunkach przemysłowych.
Źródło:
Advances in Manufacturing Science and Technology; 2013, 37, 4; 61-68
0137-4478
Pojawia się w:
Advances in Manufacturing Science and Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated monitoring system of production processes
Autorzy:
Oborski, P.
Powiązania:
https://bibliotekanauki.pl/articles/407303.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
production process
integrated monitoring system
Cyber-Physical-Systems
management systems
process monitoring
shop floor control
company IT systems
multiagent systems
Opis:
Integrated monitoring system for discrete manufacturing processes is presented in the paper. The multilayer hardware and software reference model was developed. Original research are an answer for industry needs of the integration of information flow in production process. Reference model corresponds with proposed data model based on multilayer data tree allowing to describe orders, products, processes and save monitoring data. Elaborated models were implemented in the integrated monitoring system demonstrator developed in the project. It was built on the base of multiagent technology to assure high flexibility and openness on applying intelligent algorithms for data processing. Currently on the base of achieved experience an application integrated monitoring system for real production system is developed. In the article the main problems of monitoring integration are presented, including specificity of discrete production, data processing and future application of Cyber-Physical-Systems. Development of manufacturing systems is based more and more on taking an advantage of applying intelligent solutions into machine and production process control and monitoring. Connection of technical systems, machine tools and manufacturing processes monitoring with advanced information processing seems to be one of the most important areas of near future development. It will play important role in efficient operation and competitiveness of the whole production system. It is also important area of applying in the future CyberPhysical-Systems that can radically improve functionally of monitoring systems and reduce the cost of its implementation.
Źródło:
Management and Production Engineering Review; 2016, 7, 4; 86-96
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the modernized production system through selected TPM method indicators
Autorzy:
Michlowicz, Edward
Powiązania:
https://bibliotekanauki.pl/articles/2200930.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
continuous production system
system modernization
post-modernization evaluation
evaluation indices
OEE
MTTR
MTBF
process monitoring
Opis:
The subject of the studies is the evaluation of the operation of a production system after modernization. The analysed case concerns the modernization forced by the end of the product lifetime. The proposed methodology is that of a multicriterial evaluation of the system operation after modernization. The evaluation criteria are selected TPM indices: availability of machinery and equipment, production process capacity, product quality and overall equipment effectiveness (OEE). The additional criteria are reliability indices MTBF and MTTR of studied production lines and the MTTR of the most unreliable equipment in each analysed line. A yearly monitoring of production process was proposed for obtaining the statistical credibility of the evaluation results. Additionally, a fuzzy indicator of acceptability of the modernization assessment was proposed. The paper presents the results of studies of the system for production of zinc concentrate from post-production waste. The obtained values of OEE, MTBF and MTTR indicators for the three tested lines make it possible to state that the modernization carried out is acceptable.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 4; 677--686
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Monitoring Complex Multivariate Processes
O monitorowaniu złożonych wielowymiarowych procesów
Autorzy:
Rajda-Tasior, Angelina
Kończak, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/657878.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
wielowymiarowe procesy
monitorowanie procesów
testy permutacyjne
symulacje komputerowe
multivariate processes
process monitoring
permutation tests
Monte Carlo study
Opis:
W artykule przedstawiono propozycję metody monitorowania złożonych wielowymiarowych procesów produkcyjnych. Rozważany problem dotyczy monitorowania jakości produkcji przy stosowaniu oceny alternatywnej jednocześnie względem wielu charakterystyk, gdy produkcja wykonywana jest na wielu różnych stanowiskach. Do opisu stanu jakości w czasie t wykorzystywana jest macierz, w której elementami są liczby wadliwych sztuk wykonanych na danym stanowiskuwedług ocenianych wielu charakterystyk.Proponowana metoda odwołuje się do testu permutacyjnego. Sygnał o nieprawidłowym przebiegu produkcji jest uzyskiwany na podstawie porównania macierzy z bieżącego okresu dla monitorowanego procesu oraz macierzy danych uzyskanej z procesu ustabilizowanego. Ze względu na dużą liczbę charakterystyk rejestrowanych na skali porządkowej konstrukcja statystyki testowej została oparta o funkcję odległości macierzy. Własności proponowanej metody zostały poddane analizie z wykorzystaniem symulacji komputerowych. Przeprowadzono również porównania wyników uzyskanych z zastosowaniem proponowanej metody i karty kontrolnej c.
This article presents a proposal of the method of monitoring complex multidimensional processes. The problem relates to monitoring the quality of production with some attribute variables when the production is performed by some operators. To describe the quality status we used the matrix in which elements are the numbers of defective units.The proposed method uses permutation tests. The "out-of-order" signal is obtained by comparing the matrix in period t to the matrix from stable process. The test statistic used in permutation test is based on a function of distance between matrices. The properties of the proposed method have been described using computer simulation.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2016, 3, 322
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration of machine operators with shop floor control system for Industry 4.0
Autorzy:
Oborski, P.
Powiązania:
https://bibliotekanauki.pl/articles/407313.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
manufacturing
Industry 4.0
man-machine interaction
integration
process monitoring
shop floor control
integrated IT systems
integration of monitoring systems
Cyber-Physical-Systems
Opis:
Research focused on integration of machine operators with information flow in manufacturing process according to Industry 4.0 requirements are presented in this paper. A special IT system connecting together machine operators, machine control, process and machine monitoring with companywide IT systems is developed. It is an answer on manufacture of airplane industry requirements. The main aim of the system presented in the article is full automation of information flow between a management level represented by Integrated Management IT System and manufacturing process level. From the management level an information about particular orders are taken, back an on-line information about manufacturing process and manufactured parts are given. System allows automatic identification of tasks for machine operator and particular currently machined part. Operator can verify information about process and tasks. System allows on-line analyzing process data. It is based on information from machining acquired: machine operator, process and machine monitoring systems and measurement devices handled by operator. Process data is integrated with related order as a history of particular manufactured part. System allows for measurement data analysis based on Statistical Process Control algorithm dedicated for short batches. It supports operator in process control. Measurement data are integrated with order data as a part of history of manufactured product. Finally a conception of Cyber-Physical Systems applying in integrated Shop Floor Control and Monitoring systems is presented and discussed.
Źródło:
Management and Production Engineering Review; 2018, 9, 4; 48-55
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Random projections and Hotelling’s T2 statistics for change detection in high-dimensional data streams
Autorzy:
Skubalska-Rafajłowicz, E.
Powiązania:
https://bibliotekanauki.pl/articles/331099.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
change detection
multidimensional control charts
dimensionality reduction
random projections
process monitoring
wykrywanie zmian
karta kontrolna
redukcja wymiarowości
monitorowanie procesu
Opis:
The method of change (or anomaly) detection in high-dimensional discrete-time processes using a multivariate Hotelling chart is presented. We use normal random projections as a method of dimensionality reduction. We indicate diagnostic properties of the Hotelling control chart applied to data projected onto a random subspace of Rn. We examine the random projection method using artificial noisy image sequences as examples.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2013, 23, 2; 447-461
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
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