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Wyświetlanie 1-15 z 101
Tytuł:
Memetic algorithm for assembly sequence planning
Autorzy:
Jankowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/1429342.pdf
Data publikacji:
2008
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
evolutionary computing
assembly
optimisation
process planning
Opis:
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.
Źródło:
Journal of Machine Engineering; 2008, 8, 3; 77-90
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Knowledge Management Based Process Planning System
Autorzy:
Gecevska, V.
Cus, F.
Powiązania:
https://bibliotekanauki.pl/articles/971265.pdf
Data publikacji:
2009
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
process planning
knowledge management
manufacturing enterprise
Opis:
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.
Źródło:
Journal of Machine Engineering; 2009, 9, 4; 107-120
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Autonomous machining – recent advances in process planning and control
Autorzy:
Dittrich, Marc-André
Denkena, Berend
Boujnah, Haythem
Uhlich, Florian
Powiązania:
https://bibliotekanauki.pl/articles/99503.pdf
Data publikacji:
2019
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
machine tool
process planning
adaptive machining
machine learning
Opis:
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.
Źródło:
Journal of Machine Engineering; 2019, 19, 1; 28-37
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reconfigurable Machine Tool: Methodology of RMT Design
Autorzy:
Aladad, H.
D'Acunto, A.
Martin, P.
Powiązania:
https://bibliotekanauki.pl/articles/971118.pdf
Data publikacji:
2008
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
reconfigurable machine
tool machine
tool design
machining feature
process planning
Opis:
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.
Źródło:
Journal of Machine Engineering; 2008, 8, 1; 19-32
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approach for the development of heuristic process planning tool for sequencing NC machining operations
Autorzy:
Berger, U.
Kretschmann, R
Arnold, K P
Minhas, S
Powiązania:
https://bibliotekanauki.pl/articles/1395585.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
machining process planning
NC (numerical control)
graph theory
heuristic algorithm
Opis:
This chapter deals with the process planning for sequencing NC (numerical control) machining operations. This task of selecting and ordering of machining operations is still done manually in principle. In order to overcome this problem, an approach for enabling the automatic preparation of work plans with methods known from the graph theory is introduced in this chapter. Therefore a work plan is mapped into a directed graph in a mathematically defined way. Based on that, it is possible to use algorithms to find the shortest path and a Hamiltonian path inside this directed graph as optimal sequenced solution under given requirements. Thus, the work plan is structured and re-ordered. Finally the corresponding NC machining code will be generated and distributed to the machinery.
Źródło:
Applied Computer Science; 2008, 4, 2; 17-41
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative study of machining technology selection to manufacture large-size components of offshore constructions
Autorzy:
Deja, M.
Siemiątkowski, M.
Sender, P.
Powiązania:
https://bibliotekanauki.pl/articles/259601.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
off-shore construction
heavy mechanical component
multi-axis machining centre
process planning
Opis:
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.
Źródło:
Polish Maritime Research; 2017, S 1; 38-45
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Collaboration in planning: The Geodesign approach
Autorzy:
Campagna, Michele
Steinitz, Carl
Di Cesare, Elisabetta Anna
Cocco, Chiara
Ballal, Hrishikesh
Canfield, Tess
Powiązania:
https://bibliotekanauki.pl/articles/1023352.pdf
Data publikacji:
2016-09-16
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Collaboration
Geodesign
Planning Support Systems
Planning Process
Opis:
This paper proposes a critical review of Geodesign methods and techniques which can be used to carry out collaborative design in participatory processes. The case study of a Geodesign workshop held in 2016 Cagliari (Italy) shows how it is possible to involve teams of members of the community in what is perhaps the most critical phase of a spatial planning process that is putting knowledge into action through the collaborative design of future change alternatives, and their choice based on negotiation. In addition, a discussion of further potential of the Geodesign approach in public participation is discussed with reference to both knowledge creation and community value and preferences accounting.
Źródło:
Rozwój Regionalny i Polityka Regionalna; 2016, 35; 55-72
2353-1428
Pojawia się w:
Rozwój Regionalny i Polityka Regionalna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deconstruction of the Planning Process in the 21st Century
Autorzy:
ZALI, Nader
Powiązania:
https://bibliotekanauki.pl/articles/623823.pdf
Data publikacji:
2014-01-22
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
foresight
planning process
processes re-engineering
Opis:
By increasing the changes in the last years of the second millennium, relying on the planning methods, which are based on forecasting, cannot meet the needs of management of countries at large scale. The heavy burden of uncertainties and emergence of interrupted and wild card events have changed the conditions in a way that future forecasting is not possible for planners. On the other hand, in regional and urban planning it is necessary to change the attitude from forecasting to foresight. Considering this, the paper attempts to introduce the approach of foresight as well as having a critical view of the current process of planning in foreseeing and future studies. Moreover, this study emphasizes the necessity of employing the foresight approach in the process of urban and regional studies.
Źródło:
European Spatial Research and Policy; 2013, 20, 2
1231-1952
1896-1525
Pojawia się w:
European Spatial Research and Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the Demand Planning Process on Logistic System Reliability. Case Study
Autorzy:
Szozda, Natalia
Werbińska-Wojciechowska, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/504072.pdf
Data publikacji:
2011
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
demand planning process
reliability
logistic system
Opis:
Authors define the main elements affecting the right logistic system performance level and investigate the possible connections between demand process planning quality and logistic system reliability. Thus, known in the literature definitions of logistic system reliability are characterized. Later, an overview of some recent developments in the analyzed research area is provided. In the next point, authors present the main elements affecting the reliable and available logistic system performance. Finally, the paper is ended by the presentation of the obtained analysis results in comparison with the knowledge about the case companies’ present condition.
Źródło:
Logistics and Transport; 2011, 13, 2; 79-92
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a scenario-based project management system construction in enterprises with the functional organizational structure
Rozwój systemu zarządzania opartego o scenariusze w przedsiębiorstwach o funkcjonalnej organizacji struktury
Autorzy:
Koval, O.V.
Kuzminykh, V.A.
Voronko, M.P.
Khaustov, D.V.
Powiązania:
https://bibliotekanauki.pl/articles/408885.pdf
Data publikacji:
2013
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
project engineering
optimal scheduling
process planning
probability
inżynieria projektu
optymalne planowanie
proces planowanie
prawdopodobieństwo
Opis:
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.
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”.
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2013, 4; 26-30
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multivariant process planning theory and its application for special purpose vehicle producing
Wielowariantowy proces planowania procesów w zastosowaniu do produkcji pojazdu specjalnego
Autorzy:
Monka, P. P.
Monková, K.
Powiązania:
https://bibliotekanauki.pl/articles/195192.pdf
Data publikacji:
2018
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
computer aided process planning
process plan design
production information system
wspomagane komputerowo planowanie procesu
projektowanie procesu
system informacji o produkcji
Opis:
The article deals with the characteristics of input and output data, which are necessary for manufacturing of machine parts of special purpose vehicles. It shows the relations between the individual manufacturing objects by means of information flow analysis within CAPP. It is possible to create several process plans for every engineering part and consequently use one of them in specific manufacturing conditions that are optimal according to the selected criterion. The analysis of information flow can considerably help with the process plan selection and, in result, with effectiveness or quality increasing.
Artykuł dotyczy charakterystyki danych wejściowych i wyjściowych, które są niezbędne do produkcji części maszyn do pojazdów specjalnego przeznaczenia. Pokazuje zależności między poszczególnymi obiektami produkcyjnymi za pomocą analizy przepływu informacji w ramach CAPP. Możliwe jest stworzenie kilku planów procesów dla każdej części inżynierskiej i w konsekwencji użycie jednego z nich w konkretnych warunkach produkcji, które są optymalne zgodnie z wybranym kryterium. Analiza przepływu informacji może znacznie pomóc w wyborze planu procesu, a tym samym zwiększyć jego efektywność lub jakość.
Źródło:
Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika; 2018, z. 90 [298], 2; 205-212
0209-2689
2300-5211
Pojawia się w:
Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
POLAND’S MINISTRY OF DEFENCE CONCEPT FOR TERRITORIAL DEFENCE FORCES
Autorzy:
Żuchowski, Remigiusz
Stachowski, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/483814.pdf
Data publikacji:
2016
Wydawca:
Wyższa Szkoła Biznesu i Przedsiębiorczości w Ostrowcu Świętokrzyskim
Tematy:
national security system
territorial defence
interoperability
planning process
Opis:
A rapid change in the geopolitical sphere – precisely in Ukraine, Georgia and Moldova – caused by an aggressive posture of Russian Federation (RF) and difficulties accelerated by an immigration crisis in Europe, for which one more time Russians play a significant role, have induced an evolution of adhering the Polish Armed Forces (PAF) to the new security circumstances. The perspective projected by RF for reshaping the order of current World with its invading foreign policy challenging equally: close neighbours as well as other partners regardless of their attitude towards recognition of RF’s hostile behaviour aiming at an economic, diplomatic, social and military pressure have irreversibly acquired analysts’ attention on today’s security. Having considered basic variables affecting the European security, this is indispensable assumption that strengthening the Polish Armed Forces (PAF) with additional capabilities will contribute to the intentional tendency subjected by armies in time of instability and threat. Consequently, Poland has stepped up and decided to reinforce its PAF by forming an additional component in response to the current challenges. A fivephases deliberate process was triggered with a following procedural cycle: 1. Analysing; 2. Planning; 3. Execution; 4. Assessment; and 5. Implementation. It is flexible enough for any corrections coming from practical effecting, lessons identified and finally lessons learned. The analysis serving as inputs for activating this cycle was performed by the Territorial Defence Bureau experts of Polish Ministry of Defence (POL MOD). The aim of this study is to show some aspects of an official concept of POL MOD on the development of the Territorial Defence Forces (TDF) in Poland and basic characteristics related to the synergy gained with non-military system1 . TDF are mainly considered as a capability reinforcing PAF by complementing operational forces, nevertheless the added value is to be gained by achieving a suitable interaction with non-military actors i.e.: government administration, government organizations (GOs), non-governmental organizations (NGOs) and the other players for having a possible crisis solved in a comprehensive manner
Źródło:
Ante Portas – Studia nad Bezpieczeństwem; 2016, 2(7) Obrona Terytorialna i jej rola we współczesnych systemach bezpieczeństwa; 107-117
2353-6306
Pojawia się w:
Ante Portas – Studia nad Bezpieczeństwem
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formułowanie wariantów rozwiązań w negocjacjach w przedsiębiorstwie (koncepcja metodyczna i studium przypadku)
Creating alternatives in business negotiations (methodological framework & case study)
Autorzy:
Kozina, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/420156.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
business negotiations
negotiations planning process
formulating alternatives in negotiations
Opis:
The objective of the paper is to present the method of alternatives analysis in business negotiations. Firstly, various interpretations of such negotiations are described.Then theoretical and methodological assumptions of alternatives analysis in negotiations are characterized (the process and particular tools). Finally in the last part of the paper a case study is presented , concerning the creation and analysis of alternatives in investment negotiations between two building companies.
Źródło:
Nauki o Zarządzaniu; 2014, 1(18); 23-37
2080-6000
Pojawia się w:
Nauki o Zarządzaniu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An investigation of planning practices in select companies
Autorzy:
Wyrozębski, P.
Spałek, S.
Powiązania:
https://bibliotekanauki.pl/articles/406936.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
project management
project planning
planning process
empirical studies
key factors
research
Opis:
The aim of the article is to answer two research questions concerning the influence of organizational factors and shape of project portfolio on the content and scope, as well as on the stakeholders engagement in project planning. The research strategy included a questionnairebased method. The respondents were representatives of the chosen companies located in Poland, from varied types of industries. The key research finding is that most frequently addressed areas of project planning are those of the iron-triangle of project constraints. There is still lack of understanding for communication, risk and quality planning in projects, which is consonant with recent studies of maturity in project management areas. There are significant differences between industries in terms of areas of project planning. Power engineering seems to be more mature in terms of more frequent practices of planning the project schedule, resources and risk. The research showed a number of significant correlations between components of project planning and both organizational and project portfolio factors, which justifies the statement that those factors can be seen as determinants of project planning practices.
Źródło:
Management and Production Engineering Review; 2014, 5, 2; 78-87
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie metod teorii ograniczeń i dynamicznego grupowania zadań do wspomagania planowania procesów obróbki cieplnej
Application of theory of constraints and dynamic tasks grouping to support heat treatment processes planning
Autorzy:
Mleczko, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/339673.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Zarządzania Produkcją
Tematy:
production process planning
heat treatment
theory of constraints
dynamic task grouping
planowanie procesów produkcyjnych
obróbka cieplna
teoria ograniczeń
dynamiczne grupowanie zadań
Opis:
Support of planning heat treatment processes in small batch production is very complex. In the analysed case, the bottlenecks of the processes were located on heat treatment. The difficulty in planning is due to necessity of adapting available resources to changing demand requirements. In the conditions of unit production crucial role plays changeovers time, availability of resources and cost of processing. Due to NP- difficult nature of optimization a simplified method was used. It was a complex of theory of constraints and dynamic task grouping. This is one of the attempts to solve the supporting process production problem with a method enabling its practical use.
Źródło:
Zarządzanie Przedsiębiorstwem; 2019, 22, 4; 7-13
1643-4773
Pojawia się w:
Zarządzanie Przedsiębiorstwem
Dostawca treści:
Biblioteka Nauki
Artykuł
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