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    Wyświetlanie 1-6 z 6
    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:
    Integration of ship hull assembly sequence planning, scheduling and budgeting
    Autorzy:
    Iwańkowicz, R R
    Powiązania:
    https://bibliotekanauki.pl/articles/101940.pdf
    Data publikacji:
    2015
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    assembly sequence planning
    schedulling
    shipbuilding
    budgeting
    resource consumption
    ship hull
    Opis:
    The specificity of the yard work requires the particularly careful treatment of the issues of scheduling and budgeting in the production planning processes. The article presents the method of analysis of the assembly sequence taking into account the duration of individual activities and the demand for resources. A method of the critical path and resource budgeting were used. Modelling of the assembly was performed using the acyclic graphs. It has been shown that the assembly sequences can have very different feasible budget regions. The proposed model is applied to the assembly processes of large-scale welded structures, including the hulls of ships. The presented computational examples have a simulation character. They show the usefulness of the model and the possibility to use it in a variety of analyses.
    Źródło:
    Advances in Science and Technology. Research Journal; 2015, 9, 25; 12-19
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Review of assembly sequence planning methods in terms of their applicability in shipbuilding processes
    Autorzy:
    Taraska, M.
    Iwańkowicz, R.
    Urbański, T.
    Graczyk, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/259760.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    assembly sequence planning
    ship hull
    welded structure
    method review
    shipyard
    Opis:
    The article characterises the sea-going vessel hull assembly processes and then reviews the existing assembly methods of mechanisms and welded ship structures. Classification of these methods is done with respect to selected criteria of their applicability to hull assembly. Selected methods are used for calculations performed on a model structure and exemplary database. The analysed aspects include the performance of calculation algorithms and the quality of the obtained solutions. Particular attention is paid to the need for reduction of experts’ participation in the planning process due to strong search space explosion effect. The performed analyses have enabled the authors to formulate assumptions for models which would be applicable in real assembly planning in shipyards, as well as to indicate areas of further research which would make it possible to better consider the specificity of production of large-size welded structures.
    Źródło:
    Polish Maritime Research; 2018, S 1; 124-133
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Crane selection problem in assembly works planning – criteria relevance and methods
    Kryteria i metody wyboru rodzaju żurawi budowalnych w planowaniu robót montażowych
    Autorzy:
    Marcinowski, R.
    Banach, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/230756.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    montaż
    planowanie montażu
    dźwig budowlany
    MCDA
    kryterium wyboru
    analiza wielokryterialna decyzji
    assembly
    assembly planning
    construction crane
    multi-criteria decision analysis
    criteria relevance
    Opis:
    Przedmiotem artykułu jest problem wyboru maszyn do wykonania robót montażowych. Wybór ten realizowany jest metodami MCDA, do których stosowania wykorzystuje się oceny rozwiązań przez pryzmat istotnych kryteriów z określeniem ich wag. W pracy przedstawiono wyniki badań ankietowych i ich analizę ustalające istotność i wagi kryteriów. Przeprowadzono badania wśród kierowników robót oraz planistów w polskich przedsiębiorstwach zajmujących się prowadzeniem robót montażowych, ustalając istotność 14 kryteriów 9 technologicznych i 5 związanych z preferencjami wykonawców lub czynnikami ekonomiczno-rynkowymi. Celem badań ankietowych było ustalenie miar istotności kryteriów decydujących o wyborze rodzaju żurawi budowlanych, oraz ocena żurawi względem tych kryteriów.
    Crane selection is an important issue in assembly works planning. Tower and telescopic, stationary and mobile cranes used in construction have essentially different properties. Assembly planning begins in analyzing the possibilities of assembly with a given crane. This is called technical aspect of crane selection. Cranes that meet the technical criteria are then analyzed in terms of other criteria related to the effectiveness of their use on the construction site. The article presents the assessment of the selection criteria and the method of crane selection itself. Surveys conducted among construction managers and planners in Polish companies dealing with assembly works allowed to determine the significance of the selection criteria. For this purpose, an example using SAW (Simple Additive Weighting) and FSAW (Fuzzy Simple Additive Weighting) methods was presented. They also allowed to propose a technique for determining preferences in the use of selected construction cranes. The aim of the research was to increase the usability of computer applications supporting assembly planning by acquiring expert knowledge for the initial selection of organizational solutions.
    Źródło:
    Archives of Civil Engineering; 2020, 66, 3; 377-390
    1230-2945
    Pojawia się w:
    Archives of Civil Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Computer aided assembly planning using MS Excel software – a case study
    Autorzy:
    Brzozowska, Jolanta
    Gola, Arkadiusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1837783.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Promocji Wiedzy
    Tematy:
    assembly
    production planning
    support
    spreadsheet
    MS Excel
    montaż
    planowanie produkcji
    wsparcie
    arkusz kalkulacyjny
    Opis:
    The issue of planning assembly operations remains crucial decision-making area for many of manufacturing companies. It becomes particularly significant in case of small and medium enterprises that perform unit or small-scale production, where the option of applying specialized software is often very limited – both due to high purchase price, but also due to its applicability to single unit manufacturing, that is executed based on individual customer orders. The present article describes the possibility of applying the MS Excel spreadsheet in the planning of machine assembly processes. It emphasises, in particular, the method for using the spreadsheet in subsequent stages of the process, and the identification of possible causes that have impact on problems with the planning process. We performed our analysis on the basis of actual data from one of the machine industry enterprises that manufactures in central Poland.
    Źródło:
    Applied Computer Science; 2021, 17, 2; 70-89
    1895-3735
    Pojawia się w:
    Applied Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analytical Research on Operational Issues of the Remanufacturing Process in India
    Autorzy:
    Sinha, Ajay Kumar
    Rao, Hanumantha
    Powiązania:
    https://bibliotekanauki.pl/articles/27324209.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    remanufacturing
    barrier
    operational management
    production planning
    assembly
    disassembly
    Opis:
    Environmental awareness among the masses compelled many companies to adopt sustainable practices in their business operations. Remanufacturing is a well-tested and successful business model practiced in many European countries. But in many African and Asian countries, it is still nascent, including India. This research study tries to identify the critical factors in the “Operational Management” area for the viability of remanufacturing business in India. For this purpose, a questionnaire was developed based on the important factors identified from the extensive literature review. An online questionnaire survey was conducted among Indian white goods appliance manufacturing companies and their suppliers. The responses were analyzed statistically and ranked based on their criticality in initiating remanufacturing business in India. The findings may help the Indian government and manufacturing firms to frame proper strategies related to the operational management issues of remanufacturing business in India.
    Źródło:
    Management and Production Engineering Review; 2023, 14, 4; 19--27
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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