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Wyświetlanie 1-11 z 11
Tytuł:
Industry Expertise Heuristics for Dimensioning Shelf Space of Rack Storage Location in a Distribution Centre with Zone Picking
Autorzy:
Czerniachowska, Kateryna
Wichniarek, Radosław
Żywicki, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2201188.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
distribution centre
order picking
decision making
decision process
heuristics
shelf space allocation
Opis:
Appropriate product categorization in distribution centres is important for business success because of the possibility of intuitive product finding by the picker and increased product movement. Both of these factors result in the operational efficiency of the distribution centre. The goal of this paper is to explore a model of shelf space dimensioning of storage location on a rack with vertical and horizontal product categorization in a distribution centre, where the aim is to increase total product movement/profit from all shelves of the rack. This is controlled by a packer who must complete orders by getting the goods from shelves and picking them to the container. In this problem, we develop two heuristics and compare the archived results to the CPLEX solver. The average profit ratios of both heuristics are high and approximately equal to 99%. In 10 cases, optimal solutions have been found by heuristics. The total number of possible solutions to be checked for the largest instance was reduced from 1.33 ·10156 to 1.19 ·107 thanks to the heuristic rules.
Źródło:
Management and Production Engineering Review; 2023, 14, 1; 43--60
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Manufacturing of thin-walled, complex polymer parts by DLP printing – the influence of process parameters on crosslinking density
Autorzy:
Tomczak, Dorota
Wichniarek, Radosław
Kuczko, Wiesław
Górski, Filip
Powiązania:
https://bibliotekanauki.pl/articles/27311462.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
additive manufacturing
DLP
acrylic resin
crosslinking density
FTIR-ATR
data loss prevention
produkcja dodatkowa
gęstość sieciowania
żywica akrylowa
system zapobiegania utracie danych
Opis:
This study investigated the relationship between the parameters of the DLP manufacturing process and the structure of photopolymerizable acrylic resins. Four different process parameters were established to produce different thin-walled acrylic sample series: exposure time, layer thickness, area offset, and number of transition layers. The structure and the surface of the obtained samples were examined with the use of the FTIR–ATR method and an optical microscope, respectively. It was proved that extension of the exposure time increases the density of crosslinking and sample thickness. A decreasing crosslinking density due to rising layer thickness is observed. The area offset affects only the dimensions of the sample, predictably reducing the dimensions of the sample as the compensation increases. The absence of transition layers proved unfavorable in many respects, both structurally and geometrically.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 4; art. no. e145936
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heuristics for dimensioning the shelf space on the rack with vertical and horizontal product categorisation in the distribution centre with zone picking
Autorzy:
Czerniachowska, Kateryna
Wichniarek, Radosław
Żywicki, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2127531.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
distribution centre
order picking
decision making
decision process
heuristics
shelf space allocation
Opis:
Distribution centres are the important elements of modern supply chains. A distribution centre stores and ships products. In this paper, we investigate the model of the dimensioning of shelf space on the rack with vertical and horizontal product categorisation in a distribution centre, where the objective is to maximise the total product movement/profit from all shelves of the rack which is being managed by a packer who needs to complete orders selecting the products from the shelves and picking them to the container. We apply two newly developed heuristics to this problem and compare the results to the optimal solution found by the CPLEX solver. There are 8 steering parameters that allow for reducing the search space implemented in heuristics. Among them are parameters that decrease the number of prod- ucts on the shelves, the category width range for assigning most space for the most profitable products within the category, two versions of steering parameters for the number of generated product allocations, the step parameters for the intensity of solution diversification, and the movement/profit below which the solutions are not generated. The computational results are presented and indicate that higher-quality solutions can be obtained using the new heuristics. In 10 from 15 tests, both heuristics can find optimal solutions without exploring the whole solution space. For the rest test sets, the solutions received by heuristics are not less than 92.58%.
Źródło:
Management and Production Engineering Review; 2022, 13, 2; 31--47
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Method to Improve Planning of Product Placement on a Printing Sheet
Autorzy:
Czerniachowska, Kateryna
Żywicki, Krzysztof
Wichniarek, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/1841430.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
manufacturing operation
production planning
optimization
mathematical programming
Opis:
Major manufactures are moving towards a sustainability goal. This paper introduces the results of collaboration with the leading company in the packaging and advertising industry in Germany and Poland. The problem addresses the manufacturing planning problem in terms of minimizing the total cost of production. The challenge was to bring a new production planning method into cardboard manufacturing and paper processing which minimizes waste, improves the return of expenses, and automates daily processes heavily dependent on the production planners’ experience. The authors developed a module that minimizes the total cost, which reduces the overproduction and is used by the company’s manufacturing planning team. The proposed approach incorporates planning allowances rules to compromise the manufacturing requirements and production cost minimization.
Źródło:
Management and Production Engineering Review; 2021, 12, 1; 119-128
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanical properties and geometric accuracy of angle-shaped parts manufactured using the FFF method
Autorzy:
Kuczko, Wiesław
Hamrol, Adam
Wichniarek, Radosław
Górski, Filip
Rogalewicz, Michał
Powiązania:
https://bibliotekanauki.pl/articles/2128170.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
material extrusion
additive manufacturing
mechanical properties
angle-shaped parts
wytłaczanie materiału
produkcja dodatkowa
właściwości mechaniczne
części w kształcie kąta
Opis:
The paper presents the results of research on the influence of the parameters of Fused Deposition Modelling (FDM) on the mechanical properties and geometric accuracy of angle-shaped parts. The samples were manufactured from acrylonitrile butadiene styrene (ABS) on a universal machine. A complete factorial experiment was conducted. The results indicated that the critical technological parameter was the angular orientation of the sample in the working chamber of the machine. The results were compared with the results of research performed on simple rectangular samples. A significant similarity was found in the relationships between the FDM parameters and properties for both sample types.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 3; e137387, 1--9
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanical properties and geometric accuracy of angle-shaped parts manufactured using the FFF method
Autorzy:
Kuczko, Wiesław
Hamrol, Adam
Wichniarek, Radosław
Górski, Filip
Rogalewicz, Michał
Powiązania:
https://bibliotekanauki.pl/articles/2173630.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
material extrusion
additive manufacturing
mechanical properties
angle-shaped parts
wytłaczanie materiału
produkcja dodatkowa
właściwości mechaniczne
części w kształcie kąta
Opis:
The paper presents the results of research on the influence of the parameters of Fused Deposition Modelling (FDM) on the mechanical properties and geometric accuracy of angle-shaped parts. The samples were manufactured from acrylonitrile butadiene styrene (ABS) on a universal machine. A complete factorial experiment was conducted. The results indicated that the critical technological parameter was the angular orientation of the sample in the working chamber of the machine. The results were compared with the results of research performed on simple rectangular samples. A significant similarity was found in the relationships between the FDM parameters and properties for both sample types.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 3; art. no. e137387
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The FDM technique in processes of prototyping spare parts for servicing and repairing agricultural machines: a general outline
Autorzy:
Łukaszewski, Krzysztof
Buchwald, Tatiana
Wichniarek, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/2174189.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
maszyna rolnicza
analiza kosztów
części zamienne
FDM (Fused Deposition Method)
FFF (Fused Filament Fabrication)
3D printing
spare parts
agricultural machinery
cost analysis
Opis:
The aim of this research was to determine the possibility of applying alternative techniques for the production of prototypes for spare parts in agriculture and to determine the possible directions of development of their applications in the engineering industry. Then, to determine which spare parts could be produced using the FDM technique, comparisons of the most important parameters of spare parts produced independently (using the FDM technique) and obtained from producers (produced using traditional methods in professional factories) were made. A number of factors were analysed, from technical parameters such as machine type, processed material and its consumption including required as support structures, to economic issues such as manufacturing or purchase delivery total time and cost. The FDM technique has proven itself in many ways in the production of spare parts for agricultural machinery.
Źródło:
International Journal of Applied Mechanics and Engineering; 2021, 26, 4; 145--155
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rapid Manufacturing of Individualized Prosthetic Sockets
Autorzy:
Górski, Filip
Suszek, Ewa
Wichniarek, Radosław
Kuczko, Wiesław
Żukowska, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/101969.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
prosthesis
fused deposition modelling
3D printing
additive manufacturing
customization
protezy
modelowanie osadzania stopionego
druk 3D
wytwarzanie addytywne
personalizacja
Opis:
The paper presents the experimental process of manufacturing individualized prosthetic sockets out of thermoplas‑ tic material, using an additive manufacturing technology of Fused Deposition Modelling. The patient was an adult male with an amputated forearm. His stump was 3D scanned using a low‑cost 3D scanner in a semi‑automated manner. Then, the anthropometric data was used for the creation of a model of a prosthetic socket, which was subsequently manufactured. Three different 3D printers were used, with three different materials (ABS, nylon and PC) and three different sets of process parameters. The paper contains the descriptions of the process, its results and opinions by the patient, leading to the selection of an optimal process course variant.
Źródło:
Advances in Science and Technology. Research Journal; 2020, 14, 1; 42-49
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methodology of Low Cost Rapid Manufacturing of Anatomical Models with Material Imitation of Soft Tissues
Autorzy:
Żukowska, Magdalena
Górski, Filip
Wichniarek, Radosław
Kuczko, Wiesław
Powiązania:
https://bibliotekanauki.pl/articles/103031.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
3D Printing
pre-operative support
biomedical engineering
druk 3D
wsparcie przedoperacyjne
inżynieria biomedyczna
Opis:
The pre-operative preparation of a surgeon is increasingly often extended to individual patient’s anatomical models depicting the affected organ and the existing lesion in relation to the surrounding structures (e.g. blood vessels). Among the models, there are models of the skeletal system, in which the FFF technology is used. The models of parenchymal organs are more difficult to reproduce due to the material limitations in the FFF technology, which is why alternative technologies such as PolyJet and SLA are used. Due to the high price of models, they are employed less frequently, especially in the Polish hospitals. The research presented in the article deals with the modification of the existing methodology of rapid pre-operative models production with the use of various low-budget rapid manufacturing techniques, which use materials of low hardness, similar to the human soft tissues. The aim was to create a methodology and determine the parameters of materials that allow for the cheap production of functional pre-operational aids.
Źródło:
Advances in Science and Technology. Research Journal; 2019, 13, 4; 120-128
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prototyping of an Individualized Multi-Material Wrist Orthosis Using Fused Deposition Modelling
Autorzy:
Górski, Filip
Kuczko, Wiesław
Weiss, Weronika
Wichniarek, Radosław
Żukowska, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/102639.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
wrist orthosis
3D printing
fused deposition modelling
multi-material
FDM
ABS
TPU
orteza nadgarstka
druk 3D
modelowanie z topieniem
wielomateriały
Opis:
The paper presents the design and manufacturing process of an individualized wrist orthosis. The patient’s upper limb was 3D scanned and the orthosis was designed using a CAD system. Each part of the orthosis consists of two different materials that fulfill different functions. By using the double-head Fused Deposition Modelling machine it was possible to produce these parts in a single process without the need for additional assembly operations. The orthosis has been tested for mutual fit of parts, strength and comfort of use.
Źródło:
Advances in Science and Technology. Research Journal; 2019, 13, 4; 39-47
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of sterilization of a product manufactured using fdm technology on its dimensional accuracy
Autorzy:
Kuczko, Wiesław
Wichniarek, Radosław
Górski, Filip
Banaszewski, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/102496.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
medical
additive manufacturing
fused deposition modelling
geometric accuracy
medycyna
produkcja dodatkowa
modelowanie osadzania stopionego
dokładność geometryczna
Opis:
Inter-operational surgery supplies manufactured additively using the FDM (Fused Deposition Modelling) technology are required to be sterilized before use. After manufacturing, the part should be sterilized using one of commonly used processes, without losing its dimensions and shape. The paper presents studies on manufacturing and sterilizing samples made out of ABS material and influence of the sterilization process on the dimensional accuracy of these samples.
Źródło:
Advances in Science and Technology. Research Journal; 2018, 12, 1; 74-79
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

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