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  1. 158 Assembly Techniques and Technologies
  2. 158 Technologia i Automatyzacja Montażu
  3. 91 Scientific Letters of Rzeszow University of Technology. Mechanics
  4. 91 Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
  5. 27 Materiały Budowlane
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  1. 7 2024
  2. 12 2023
  3. 9 2022
  4. 11 2021
  5. 12 2020
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  1. 22 Żurek J.
  2. 19 Łunarski J.
  3. 16 Kluz R.
  4. 15 Ciszak O.
  5. 11 Reifur B.
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1
Content available remote O konieczności rozwoju technik i technologii montażu
100%
Łunarski J.
Technologia i Automatyzacja Montażu
|
2008
|
tom nr 2
3-4
2
Partycypacyjny tryb planowania montażu maszyn górniczych pod ziemią
80%
Winkler T. , Michalak D.
|
2009
|
tom nr 7-8
50-54
PL
Montaż końcowy maszyn górniczych wchodzących w skład systemu ścianowego wykonywany jest pod ziemią. Ponadto, ze względu na metody eksploatacji złóż węgla, maszyny te są okresowo demontowane i ponownie montowane, w miarę jak wyczerpywane są jedne pokłady i udostępniane są następne. Montaż przeprowadzany w warunkach fabrycznych różni się znacznie od montażu pod ziemią. Z uwagi na warunki górniczo-geologiczne ta sama maszyna w tej samej kopalni może być montowana i demontowana w różnych warunkach. Badanie operacji montażu można przeprowadzać w trybie partycypacyjnym we wczesnych fazach projektowania. Formą komunikacji pomiędzy projektantem i użytkownikiem w trybie partycypacyjnym jest wirtualne prototypowanie operacji montażu /demontażu, w różnych fazach cyklu życia maszyn górniczych.
3
Konsekwencje zmian etapowania montażu przęseł w obiekcie trzyprzęsłowym
80%
Kućmierz A. , Lewandowska K. , Owczarek A. , Stryszyk B. , Szymczak R.
Mosty
|
2023
|
tom nr 4
46-51
PL
Artykuł na przykładzie realizacji projektu przejścia dla zwierząt w ramach zadania „Budowa drogi ekspresowej S19 Białystok– Lubartów” omawia technologię wznoszenia niesymetrycznego obiektu trzyprzęsłowego z prefabrykowanych elementów żelbetowych. Autorzy analizują wpływ zmian w projekcie na pracę statyczną i przejście dla zwierząt, porównując dwa warianty wznoszenia obiektu: klasyczny i uwzględniający realne warunki montażu.
4
Content available remote Determination of time consumption of actual and virtual assembly processes using the MTM methodology
80%
Żurek J. , Cieślak R. , Suszyński M.
Archives of Mechanical Technology and Automation
|
2012
|
tom Vol. 32, no. 3
69--76
EN
This paper presents results of research in time consumption of actual and virtual assembly of a bus air-conditioner compressor using an MTM analysis of basic motions. Definitions of work time, time consumption and work consumption arc compared as they arc often used interchangeably in the literature. The article substantiates the subject and discusses the essence and objectives of research in time consumed by assembly processes. It also presents characteristics of the MTM methodology of analysis of basic motions, and steps required within its framework in order to determine time consumption. The article also discusses EON ICATCHER, a passive, multidisplay, 3D projection system, basic software and stages of determining time consumption involved in assembly of an air-conditioner compressor in Virtual Design Lab. The actual workstation used for assembly of the compressor is compared with a virtual workstation designed using CATIA software. Results established using the MTM analysis of time consumed by actual and virtual assembly operations are presented in tables and analyzed. The research has shown that application of the MTM methodology combined with VR technology makes it possible to provide fast testing of duration of assembly processes performed in a complex manner and to prepare their implementation by taking into account several variants of parts configuration.
5
Content available Review of LTCC Technology for Millimeter Waves and Photonics
80%
Lahti M. , Kautio K. , Karppinen M. , Keränen K. , Ollila J. , Karioja P.
International Journal of Electronics and Telecommunications
|
2020
|
tom Vol. 66, No. 2
361--367
EN
VTT Technical Research Centre of Finland Ltd. has developed and utilized Low Temperature Co-fired Ceramic (LTCC) technology for about 25 years. This paper presents our activities related to photonics and millimetre-waves, including also a relevant literature survey. First a short summary of the technology is given. Especially, the unique features of LTCC technology are described in more details. In addition, several examples have been given to show the validity of LTCC technology in these high-performance fields.
6
Content available Development of a neural network structure for identifying begin-end points in the assembly process
80%
Kutschenreiter-Praszkiewicz I.
Journal of Machine Engineering
|
2023
|
tom Vol. 23, No. 2
100-109
EN
The paper presents an approach to video-based assembly analysis using machine learning. A neural network is one of the machine learning methods that is widely studied in many engineering fields. The purpose of this paper is to develop a deep neural network structure for identifying begin-end points for a selected component assembly process. A neural network structure that effectively identifies begin-end points is proposed and an example from industry is presented. The proposed approach can prove useful in the assembly process analysis.
7
Content available Memetic algorithm for assembly sequence planning
80%
Jankowski T.
Journal of Machine Engineering
|
2008
|
tom 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.
8
Content available remote Modułowe technologie i konstrukcje w montażu.
80%
Łunarski J.
Technologia i Automatyzacja Montażu
|
1999
|
tom nr 3
4-8
9
Content available remote Procesy innowacyjne w obróbce mechanicznej i montażu.
80%
Szabajkowicz W.
Technologia i Automatyzacja Montażu
|
1999
|
tom nr 4
5-9
10
Content available Knowledge base development for assembly planning using evidence theory
80%
Kutschenreiter-Praszkiewicz I. , Matuszny M.
Journal of Machine Engineering
|
2022
|
tom Vol. 22, No. 2
125--137
EN
This paper presents an approach to assembly planning in the early phase of product development. The product specification, workstation, environment, equipment and tools are not fully known in the early stage of product development. When comparing product variants at this stage there is a lack of data that affects the efficiency of the manufacturing process. It is therefore necessary to apply methods useful in processing incomplete and uncertain data. The main indicator which helps in comparing different product variants is manufacturing time standard. This papier is focused on assembly tool selection which is one of important data influenced assembly time. Based on the proposed algorithm and case study, a tool selection method using a decision tree induced from a training set with reduced uncertainty is presented.
11
Content available remote Wybór metody badania czasochłonności montażu za pomocą wielokryterialnego wspomagania decyzji
80%
Cieślak R. , Suszyński M. , Żurek J. , Peta K. , Wiśniewski M.
Technologia i Automatyzacja Montażu
|
2018
|
tom nr 3
39--44
PL
Praca zawiera przegląd metod badania czasu pracy najczęściej stosowych do procesów technologicznych montażu. Na przykładzie wybranych wielokryterialnych metod wspomagania decyzji dokonano przykładowego wyboru metody badania czasu pracy w procesie montażu. W podsumowaniu zawarto wyniki analizy kryteriów.
EN
The work contains an overview of the most frequently used work-time testing methods for assembly processes. On the example of selected multicriteria decision support methods, a choice of the way of testing the working time in the assembly process was made. The summary contains the results of the criteria analysis.
12
Content available remote REPRAP P3STEEL spatial printer construction design
80%
Cieślak R. , Suszyński M. , Wiatrowski A.
Technologia i Automatyzacja Montażu
|
2020
|
tom nr 4
35--40
EN
The introduction describes the purpose of the article, i.e. designing a REPRAP printer. The article includes an overview of additive manufacturing techniques. The next section discusses the definition of a self-replicating REPRAP printer. Then, the example of the method for extruding thermoplastic materials with the use of the FDM / FFF technique served to present the list of parts and the design of the REPRAP P3STEEL spatial printer. Tests were also carried out and the prints were compared with the Zoltrax M200 serial production printer.
PL
We wstępie został przedstawiony cel pracy, czyli projekt drukarki REPRAP. Praca zawiera przegląd technik przyrostowych. W kolejnej części omówiono definicję samoreplikującej się drukarki RERAP. Następnie na przykładzie metody wytłaczania tworzyw termoplastycznych techniką FDM/FFF przedstawiono wykaz części i projekt drukarki przestrzennej REPRAP P3STEEL. Przeprowadzono również testy i porównano wydruki z seryjną drukarką Zoltrax M200.
13
Content available remote Analysis of repeatability positioning of the assembly robot
80%
Kluz R.
Archives of Mechanical Technology and Automation
|
2012
|
tom Vol. 32, no. 3
59--68
EN
This article undertakes the problem of assessing the precision of the assembly robot. There are presented the dependencies which enable to determine the repeatability positioning of the robot, which have been verified in experimental tests. There is also offered a method to determine the most beneficial location, in a workspace, of the assembly stand for the realization of the switching process of typical machine pieces. In the final part, the results are discussed and conclusions are formulated.
14
Content available remote Wybór wariantu kolejności montażu części i zespołów maszyn z wykorzystaniem punktowej metody Yagera.
80%
Żurek J. , Ciszak O.
Technologia i Automatyzacja Montażu
|
2000
|
tom nr 3
26-30
15
Content available remote O problemach elastycznego montażu.
80%
Łunarski J.
Technologia i Automatyzacja Montażu
|
2000
|
tom nr 4
2-4
16
Content available remote O problemach jakości w procesach montażu.
80%
Łunarski J.
Technologia i Automatyzacja Montażu
|
2001
|
tom nr 1
2-4
17
Content available remote Wybrane zagadnienia montażowe składanych wałów korbowych.
80%
Jezierski J. , Siemiątkowski Z.
Technologia i Automatyzacja Montażu
|
1998
|
tom nr 1
33-34
18
Content available Development of an automated assembly process supported with an artificial neural network
80%
Bobka P. , Heyn J. , Henningson J.-O. , Römer M. , Engbers T. , Dietrich F. , Dröder K.
|
|
tom Vol. 18, No. 3
28--41
EN
A central problem in automated assembly is the ramp-up phase. In order to achieve the required tolerances and cycle times, assembly parameters must be determined by extensive manual parameter variations. Therefore, the duration of the ramp-up phase represents a planning uncertainty and a financial risk, especially when high demands are placed on dynamics and precision. To complete this phase as efficiently as possible, comprehensive planning and experienced personnel are necessary. In this paper, we examine the use of machine learning techniques for the ramp-up of an automated assembly process. Specifically we use a deep artificial neural network to learn process parameters for pick-and-place operations of planar objects. We describe how the handling parameters of an industrial robot can be adjusted and optimized automatically by artificial neural networks and examine this approach in laboratory experiments. Furthermore, we test whether an artificial neural network can be used to optimize assembly parameters in process as an adaptive process controller. Finally, we discuss the advantages and disadvantages of the described approach for the determination of optimal assembly parameters in the ramp-up phase and during the utilization phase.
19
Content available Assembly improvement with the use of the Schmigalla method
80%
Kutschenreiter-Praszkiewicz I.
Journal of Machine Engineering
|
2021
|
tom Vol. 21, No. 2
116--130
EN
One of the important issues in production is the improvement of the assembly process, which involves the assembly of the product, as well as changeover and maintenance. Improving assembly, resulting from the appropriate layout of workstations, is crucial for both employees and robots performing routine assembly operations. This article discusses improving assembly using the Schmigalla method (also known as the Bloch-Schmigalla method or the triangular method), which is one of the heuristic layout planning methods. The article analyzes the selected assembly task and characterizes the main activities and equipment, on the basis of which the proper arrangement of equipment at the assembly station was determined. Based on the numerical data, the advantages of using the Schmigalla method to improve the location of the assembly station equipment are presented.
20
Content available Pre-assembly of FEM n-th order triangular elements
80%
Sowa M. , Typańska D.
|
|
tom No. 77
133--139
EN
The paper presents a method of preparing data, which can be used to simplify the procedure of formulating local stiffness matrices in the finite element method (the part of preparing this data is hence referred to as the pre-assembly). For the presentation of the methodology non-curvilinear triangular elements have been chosen, where it has been taken into account that any order can be selected for the elements. The paper presents a mathematical basis of how the auxiliary data is prepared. The appropriate relations to the final FEM equations are also given.
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