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  1. 4 Journal of Machine Engineering
  2. 3 Journal of Achievements in Materials and Manufacturing Engineering
  3. 2 Assembly Techniques and Technologies
  4. 2 Management and Production Engineering Review
  5. 2 Technologia i Automatyzacja Montażu
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  1. 3 Duda J.
  2. 2 Jankowski T.
  3. 2 Papstel J.
  4. 2 Saks A.
  5. 1 Abdelmaguid T. F.
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  1. 1 2023
  2. 1 2022
  3. 1 2019
  4. 1 2017
  5. 1 2016
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1
Content available Data engineering in CRISP-DM process production data – case study
Brzozowska Jolanta, Pizoń Jakub, Baytikenova Gulzhan, Gola Arkadiusz, Zakimova Alfiya, Piotrowska Katarzyna
Applied Computer Science
|
2023
|
Vol. 19, no 3
83--95
EN
The paper describes one of the methods of data acquisition in data mining models used to support decision-making. The study presents the possibilities of data collection using the phases of the CRISP-DM model for an organization and presents the possibility of adapting the model for analysis and management in the decision-making process. The first three phases of implementing the CRISP-DM model are described using data from an enterprise with small batch production as an example. The paper presents the CRISP-DM based model for data mining in the process of predicting assembly cycle time. The developed solution has been evaluated using real industrial data and will be a part of methodology that allows to estimate the assembly time of a finished product at the quotation stage, i.e., without the detailed technology of the product being known.
2
Content available Prioritizing and Scheduling of Production Orders in Non-homogenous Production Systems
Skołud Bożena, Szopa Agnieszka, Kalinowski Krzysztof
Management and Production Engineering Review
|
2022
|
Vol. 13, No. 1
62--75
EN
The aim of the work was to develop a prioritizing and scheduling method to be followed in small and medium-sized companies operating under conditions of non-rhythmic and nonrepeatable production. A system in which make to stock, make to order and engineer to order (MTS, MTO and ETO) tasks are carried out concurrently, referred to as a non-homogenous system, has been considered. Particular types of tasks have different priority indicators. Processes involved in the implementation of these tasks are dependent processes, which compete for access to resources. The work is based on the assumption that the developed procedure should be a universal tool that can be easily used by planners. It should also eliminate the intuitive manner of prioritizing tasks while providing a fast and easy to calculate way of obtaining an answer, i.e. a ready plan or schedule. As orders enter the system on an ongoing basis, the created plan and schedule should enable fast analysis of the result and make it possible to implement subsequent orders appearing in the system. The investigations were based on data from the non-homogenous production system functioning at the Experimental Plant of the Łukasiewicz Research Network – Institute of Ceramics and Building Materials, Refractory Materials Division – ICIMB. The developed procedure includes the following steps: 1 – Initial estimation of resource availability, 2 – MTS tasks planning, 3 – Production system capacity analysis, 4 – ETO tasks planning, 5 – MTO orders planning, 6 – Evaluation of the obtained schedule. The scheduling procedure is supported by KbRS (Knowledge-based Rescheduling System), which has been modified in functional terms for the needs of this work assumption.
3
Content available Autonomous machining – recent advances in process planning and control
Dittrich Marc-André, Denkena Berend, Boujnah Haythem, Uhlich Florian
Journal of Machine Engineering
|
2019
|
Vol. 19, No. 1
28--37
EN
While autonomous driving has come close to reality over the recent years, machining is still characterised by many manual tasks and prone to costly errors. In this article, an overview is given about the potential of autonomous machining and uprising technologies that support this vision. For that purpose, a definition of autonomous machine tools and the required elements is presented. Next, selected elements of an autonomous machine tool, e.g. sensory machine components and control loops, are discussed. Finally, some insights into ongoing research projects regarding the use of machine learning for process planning and control are given.
4
Content available Comparative study of machining technology selection to manufacture large-size components of offshore constructions
Deja M., Siemiątkowski M., Sender P.
Polish Maritime Research
|
2017
|
S 1
38--45
EN
The focus of this paper is on process planning for large parts manufacture in systems of definite process capabilities, involving the use of multi-axis machining centres. The analysis of machining heavy mechanical components used in off-shore constructions has been carried out. Setup concepts applied and operation sequences determined in related process plans underwent studies. The paper presents in particular a reasoning approach to setup sequencing and machine assignment in manufacturing large-size components of offshore constructions. The relevant reasoning mechanism within a decision making scheme on generated process plan is shown based on a case study derived from the offshore sector. Recommendations for manufacture of selected exemplary and typical parts were formulated.
5
Application of an inhomogeneous CTMC model for a telephone call center
Burak M.
Studia Informatica
|
2016
|
Vol. 37, nr 2
15--27
EN
In this paper we consider modeling an inbound telephone call center, where the callers may balk or abandon, with an inhomogeneous continuous time Markov chain model. We further discuss the practical application of the uniformization method and compare it to traditional call center modeling methods based on stationary approximations.
PL
W artykule omawiane jest modelowanie telefonicznego call center za pomocą łańcuchów Markowa z czasem ciągłym. Model uwzględnia możliwość rozłączenia się klienta (opuszczenia kolejki), jeżeli nie może być on obsłużony natychmiast (balking) lub gdy okres oczekiwania przekracza jego cierpliwość (abandonment). Artykuł porównuje praktyczne zastosowanie metody uniformizacji oraz metod przybliżonych, zakładających (chwilową) stacjonarność systemu.
6
Content available remote Optymalizacja konfiguracji algorytmu ewolucyjnego do planowania procesu montażu
Jankowski T.
Technologia i Automatyzacja Montażu
|
2014
|
nr 3
161--164
PL
Jednym z pierwszych zadań, jakie należy wykonać w trakcie projektowania procesu technologicznego montażu, jest ustalenie kolejności wchodzenia poszczególnych części do procesu montażu, czyli zaplanowanie sekwencji montażowej. Problem planowania sekwencji montażu, jak większość problemów optymalizacji kombinatorycznej, należy do klasy problemów trudno rozwiązywalnych w rozsądnym czasie, co oznacza, że ich dokładne rozwiązanie za pomocą algorytmów o złożoności wielomianowej jest najprawdopodobniej niemożliwe. Przedstawiony w niniejszym artykule koncepcyjny model ewolucyjny umożliwi w opinii autora efektywne rozwiązywanie zagadnienia planowania sekwencji montażowej. Praca skupia się na przedstawieniu znaczenia właściwej konfiguracji algorytmu ewolucyjnego, na przykładzie operacji krzyżowania i różnych wersji jej realizacji. Przeprowadzono badania numeryczne wpływu wybranych sposobów realizacji operatora krzyżowania, jakie w źródłach literaturowych uznawane są za najlepsze dla kodowania permutacyjnego problemów optymalizacji kombinatorycznej, do których należy zadanie planowania sekwencji montażowej oraz zadanie testowe planowania trasy komiwojażera. Wyniki przeprowadzonych badań numerycznych pozwoliły ustalić najbardziej efektywną konfigurację operatora krzyżowania z porządkowaniem (OX) oraz wartości parametrów prawdopodobieństw krzyżowania i mutacji, dla których algorytm uzyskuje rozwiązania optymalne ze stuprocentową powtarzalnością, przy jak najniższym koszcie symulacji.
EN
One of the first steps, which should be done when designing an assembly process, is to determine the order in which the particular parts enter the assembly process, i.e. to plan the assembly sequence. As most combinatorial optimization problems, the assembly sequence-planning problem is difficult to solve in a reasonable amount of time, which means that their exact solution by means of algorithms with polynomial complexity is almost impossible. According to the author, the conceptual evolutionary model presented in this section makes possible to solve effectively the assembly sequence-planning problem. This paper emphasizes the importance of the proper configuration of the evolutionary algorithm, using the crossover operation and the different methods of conduction. Numerical studies have shown that the selective implementation effect of the crossover operator is generally considered to be the best for the permutational encoding of combinatorial optimization problems. The assembly sequence planning task, and the travelling salesman route planning test task that corresponds to the process have been carried out in this study. The numerical simulations led to determine the most effective configuration of the OX crossover operator, the values of the crossover, and mutation probability parameters for which the algorithm generates optimal solutions with one hundred per cent repeatability at the lowest simulation cost.
7
Content available remote Koncepcja zarządzania konstrukcyjną i technologiczną strukturą produktu w rozwoju złożonych produktów
Cholewa M.
Mechanik
|
2014
|
R. 87, nr 2CD
PL
W pracy przedstawiono zagadnienie integracji prac różnych działów przedsiębiorstwa w obszarze rozwoju i zarządzania strukturą produktu. W szczególności zaprezentowano zagadnienie integracji prac i zarządzana zmianami w obszarze konstrukcji i technologii. Przedstawiono funkcję, algorytm oraz model danych umożliwiający integrację różnych domen danych, a co za tym idzie prac w całym cyklu rozwoju produktu.
EN
This paper describes the issue of integration of the various departments of the company in the development and management of product structure. In particular, the issue of the integration of works and change management is presented in the area of design and process planning. Presented function, algorithm and data model enabling integration of different data domains, and thus the work within the entire product development cycle.
8
Content available Development of a scenario-based project management system construction in enterprises with the functional organizational structure
Koval O.V., Kuzminykh V.A., Voronko M.P., Khaustov D.V.
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
|
2013
|
nr 4
26--30
EN
Commonly accepted point is that functional organization structure is a poor environment for project management. The scenario repository approach is designed especially to support project management in environment with great amount of operational activity taking into account, that in such cases, project tasks have their reflection in the tasks of business-processes. Creation of a special project and operation task management tools set allows to create a new approach in change management in enterprises with functional organization structure, optimize the processes, involved in project management activities, compile the knowledge base of project and operational task management using the project task - operational task mapping to reveal the bottle necks of both.
PL
Ogólnie przyjętym punktem widzenia jest to, że funkcjonalna organizacja struktury jest słabą podstawą do zarządzania projektami. Podejście oparte o scenariusze zostało specjalnie zaprojektowane do wsparcia zarządzania projektami w środowisku o dużej aktywności operacyjnej zwłaszcza, że cele projektu mają swoje odbicie w celach procesów biznesowych. Opracowanie specjalnego zestawu narzędzi i operacji do zarządzania projektami pozwala stworzyć nowe podejście do zarządzania zmianami w przedsiębiorstwach z funkcjonalną organizacją struktury, optymalizować procesy związane z zarządzaniem projektami, zbudować bazę wiedzy projektu i operatywnego zarządzania zadaniami przy wykorzystaniu głównego celu projektu - zadanie operacyjne wykrywania „wąskich gardeł”.
9
Content available remote The use of STEP-NC (ISO 14649) for the integration of CAD/CAM/CNC chain
Pobożniak J.
Czasopismo Techniczne. Mechanika
|
2013
|
R. 110, z. 1-M
333--339
EN
The paper presents the information flow between CAD/CAM/CNC systems when using the CNC machine tool programming language based on ISO 6983. Next, the data structure of the new programming standard STEP-NC, defined in ISO 14649, is presented. The information flow for this new standard is also discussed. The results of analysis show how this standard can be used for the increase of the automation of CNC machine tool programming.
PL
W artykule przeanalizowano przepływ informacji pomiędzy systemami CAD/CAM/CNC przy korzystaniu z języka programowania obrabiarek CNC opartego na normie ISO 6983. Następnie scharakteryzowano strukturę danych w nowym standardzie programowania OSN STEP-NC, zdefiniowanym w normie ISO 14649 i również przeprowadzono dla tego standardu analizę przepływu informacji. Uzyskane wyniki analizy wskazują, w jaki sposób można wykorzystać ten standard do dalszej automatyzacji programowania obrabiarek sterowanych numerycznie.
10
Content available remote Towards an optimized process planning of multistage deep drawing: an overview
Wifi A. S., Abdelmaguid T. F.
Journal of Achievements in Materials and Manufacturing Engineering
|
2012
|
Vol. 55, nr 1
7--17
EN
Purpose: To present a concise literature review on the optimization techniques used for the single stage and multistage deep drawing process, and to identify directions for future research. A perspective on a comprehensive optimized computer aided process planning is provided for multistage deep drawing processes. This is an integrated rule base/dynamic programming/finite element approach that minimizes the total number of stages and heat treatment needed. Design/methodology/approach: Relevant research is classified according to the major process parameters and the optimization techniques used. Main features and major outcome of the applications are presented. Findings: There is a lack in the literature in providing a comprehensive approach for optimizing the multistage deep drawing process. Research limitations/implications: Directions for future research towards integrative models for optimizing the multistage deep drawing process that take into consideration economic as well as operational objectives are identified. Originality/value: This paper provides a guide for researchers in the field of deep drawing and identifies some directions for future research that can be pursued. It also gives some insights to practitioners in that field on how integrated models can improve the economics and the quality of the process planning decisions for multistage deep drawing.
11
Content available remote Collaborative engineering in products development and manufacturing
Chlebus E.
Management and Production Engineering Review
|
2010
|
Vol. 1, No. 2
64-71
EN
The manufacture and consumption of market products shows ever growing trends, and this means not only the supply and demand volume but also, to a higher and higher extent, searching for new products distinguishable from the variety of products on the market. Not only new methods of market investigation have appeared to specify its requirements, but some attempts were also made at elaborating suitable methods and techniques of engineering to ensure flexible and synchronised reaction to market demands. Thus, it is necessary to find methods of functional, logical and structural combination of the so far existing engineering applications like CAx, RP/RT/RE, PDM/TDM, PPC/ERP, CE/SE and RDBMS techniques. Competitive actions in the "product market" make a manufacturer and his sub-suppliers respond to market signals quickly and adequately, and to permanently improve their internal organisation, as well as co-operation, logistic and service interconnections. A new challenge imposed to manufacturers by the competitive market is the so-called "product customisation", i.e. attending to an individual customer's requirements in the features of a series manufactured product. The general objective of customisation is to elaborate features of a product, manufacturing processes, documentation and production organisation in such a way that the product's individual features meet the customer's requirements and its manufacturing process, price and service do not stray from series manufactured products. This contradictory production strategy requires using the newest achievements of computer methods and tools, as well as the newest manufacturing technologies and systems.
12
Content available remote Zintegrowane projektowanie procesów i systemów wytwarzania
Duda J.
Archiwum Technologii Maszyn i Automatyzacji
|
2010
|
Vol. 30, nr 4
141-150
PL
W artykule omówiono kierunki rozwoju metod i systemów projektowania technologicznego obróbki i montażu na tle wdrażanych strategii rozwoju wyrobów CE (Concurrent Engineering) i CEE (Cross Enterprise Engineering). Przedstawiono rozwiązania w zakresie integracji funkcjonalnej etapów konstrukcyjno-technologicznego i technologiczno-organizacyjnego przygotowania produkcji oraz integracji informatycznej obejmującej zastosowanie systemów PDM przeznaczonych do zapisu danych o: strukturze wyrobu, dokumentacji konstrukcyjnej i procesach jego wytwarzania. Zaprezentowano koncepcję zintegrowanego projektowania procesu i systemu wytwarzania w środowisku PLM (Product Lifecycle Management).
EN
The paper presents the trends in development of methods and systems for manufacturing and assembly process planning on the background of Concurrent Engineering and Cross Enterprise Engineering strategies. The solutions for the functional integration of design/manufacturing and production preparation phases and the IT infrastructure including PDM systems for the storage of ; product structure data, design and manufacturing process documentation are presented. The conception of integrated process and manufacturing system planning in PLM (Product Lifecycle Management) environment are presented.
13
Content available remote Development strategies in design and process planning quality assurance context
Duda J.
Archives of Foundry Engineering
|
2010
|
Vol. 10, iss. 3 spec.
97--100
EN
According to the new development strategies, the product development focuses on as much as possible parallel execution of all development related product life cycle phases, thus creating CE (Concurrent Engineering) approach. Its further extension is CEE (Cross Enterprises Engineering) approach incorporating the relations between business and engineering activities, so securing also the access to the resources of cooperating enterprises. Computer integration of product phases can be viewed as functional, informational and complex integration. The process planning quality is assured on the design and technological process planning stage with the use of methods and systems processing the data from the other product development phases. The paper presents the methods and systems for design and process planning quality assurance in the product life cycle as well as the possibility for the implementation of the presented product development phases.
14
Content available remote Zastosowanie technik programowania z ograniczeniami do planowania zadań w środowiskach wieloprojektowych
Bocewicz G., Banaszak Z., Bach I.
Pomiary Automatyka Robotyka
|
2009
|
R. 13, nr 2
152-164
PL
Efektywne wykorzystanie zdolności produkcyjnych stanowi o konkurencyjności dysponującego nimi przedsiębiorstwa. W tym kontekście istotnego znaczenia nabierają badania związane z planowaniem zadań w przedsięwzięciach. Przedstawiony model referencyjny problemu decyzyjnego łączy oczekiwania użytkownika z możliwościami wykorzystania dostępnych zdolności realizacji przedsięwzięć. Z kolei jego specyfikacja, w terminach problemu spełniania ograniczeń, pozwala na ocenę alternatywnych wariantów przebiegu przedsięwzięć w systemach programowania z ograniczeniami.
EN
The way enterprise capabilities are used decides about its competitiveness among other ones. In that context modeling aimed at production tasks allocation planning plays a crucial role especially at concurrently executed production orders. The introduced reference model employing constraint programming (CP) paradigm describes both an enterprise and a set of project-like production orders. Moreover, encompassing consumer orders requirements and available production capabilities, the model provides the formal framework allowing one to develop a class of decision support systems aimed at interactive production process planning subject to multiproject environment constraints.
15
Content available Knowledge management based process planning system
Gecevska V., Cus F.
Journal of Machine Engineering
|
2009
|
Vol. 9, No. 4
107--120
EN
Process planning knowledge (PPK) is one of the most important knowledge in production manufacturing enterprise. The traditional method of organizing data into knowledge relies on manual analysis and interpretation. This paper analyzes the source and composing of process planning knowledge and state of arts on process planning discovery in production manufacturing enterprise. On the basis of the application of computer aided process planning (CAPP) system in mechanical manufacturing enterprise, the concept of process planning information model (PPIM) is proposed based on process planning databases. This paper provides a CAPP database developed in own research, clarifying how PPK and PPIM in CAPP database are related both to each other and to related fields, the technology database of process planning knowledge discovery is modeled based on object-oriented model-driven technology, and the process planning knowledge discovery script is designed.
16
Content available remote Ograniczenia wariantowości sekwencji montażu podstawą zwiększania efektywności procesów montażu
Pasiecznik W., Ratusznaja I., Gałajda R.
Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
|
2008
|
z. 72 [251]
73-80
EN
Four-stage procedure of synthesis and selection of assembly sequence which allows getting the solution close to optimal is offered. The procedure is based on the specified rule of transforming binary relations of movement restriction into assembly sequences. That makes possible to expand its application to assembly units which have kinematic couples structurally similar to the indecomposable joints.
17
Inżynieria odwrotna w praktyce. Część II
Hylewski D., Kolka A.
Prace Naukowe Katedry Budowy Maszyn / Politechnika Śląska
|
2008
|
nr 3
145-152
PL
Artykuł przedstawia praktyczne wykorzystanie inżynierii odwrotnej. Przedstawiono kolejne etapy realizacji zadania: adaptacja geometrii, planowanie procesu technologicznego, realizacja procesu na centrum frezarskim, ocena odtworzonego przedmiotu.
EN
The article shows reverse engineering in practice. The main goal of work was presentation the way of creating physical model using the machines and software at The Machine Technology Department. Geometry adaptation, process planning in to CATIA Manufacturing environment was presented. Finally comparison between CAD model and manufactured workpiece have been shown.
18
Content available Reconfigurable Machine Tool: methodology of RMT design
Aladad H., D'Acunto A., Martin P.
Journal of Machine Engineering
|
2008
|
Vol. 8, No. 1
19--32
EN
Reconfigurable Machine Tool (RMT) is the active issue to realize both the flexibility and productivity of manufacturing systems and satisfy the mass-customization production. The purpose of this paper is to present a RMT design methodology. Specifically, the part analysis and the RMT architectural modelling. The method of RMT design is focused on a simultaneous machining process using multi-spindle in a single RMT. Based on the concept of machining features, the process data, retrieved as a starting point in identifying various functions necessary to carry out a given part family, are displayed. Moreover, geometrical and kinematical architectures of RMT are defined as a result of the specification of all manufacturing processes of features to be machined. Where, all architectural solutions and the criterions related to select the suited solution are presented. Our methodology presents all activities allowing to pass from machining features of part to be machined to the structure of RMT.
19
Content available Memetic algorithm for assembly sequence planning
Jankowski T.
Journal of Machine Engineering
|
2008
|
Vol. 8, No. 3
77-90
EN
The paper presents the application of a memetic algorithm to searching for the optimal sequence of the assembly of parts. Such approach is based on the use of an algorithm connecting two methods of global and local search in order to increase the effectiveness of the conducted optimisation process. Based on a proper representation of assembly sequences and a set of geometrical, topological and technological constraints, connected with the attributes of a product, it is possible to create an evolutionary model. Through proper control of the evolution process in a model, based on the appropriate selection of parameters, it is possible to achieve good results in a short period of time. Although the evolutionary algorithm does not guarantee the obtaining of optimal solutions, it has been proven, based on sample simulations, that such solutions are obtained in a repeated manner. The application of the presented evolutionary approach enables creating fast assembly sequence planning tools, indispensable in tactical planning and operational control of manufacturing processes.
20
Content available remote Hot closed die forging - State-of-Art and future development
Tomov B.
Journal of Achievements in Materials and Manufacturing Engineering
|
2007
|
Vol. 24, nr 1
443-449
EN
Purpose: This paper presents an overview of the hot close-die-forging (HCDF) and aims at drawing up some new ideas and conclusions about future development of the HCDF. Design/methodology/approach: Exploring the literature survey and the author's experience, the state-of-art of the HCDF is defined. The reason to do this are signs of instability in development of HCDF - a production method, well known due to its advantages, concerning both dimension accuracy and favorable mechanical properties in effect of micro structure changes. Findings: This study shows advantages, possibilities and feature development of the HCDF. Challenges and possible response to them have been discussed. Research limitations/implications: Analyzing the experience gained until now, the possible new research fields have been shown: forging of new materials, new understand ness of near-net forging, combining operations, physical and numerical simulations. Practical implications: HCDF is a production method, well known due to its advantages, concerning both dimension accuracy and favorable mechanical properties in effect of microstructure changes.
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