Wyniki wyszukiwania - BazTech

1

Zmiana procesu planowania i sterowania produkcją a etapy i narzędzia logicznego wnioskowania

Łopatkowska J.

Logistyka

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2008

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nr 2

PL

W artykule przedstawiono etapy realizacji pełnej zmiany przy zastosowaniu Teorii Ograniczeń i Logicznego Wnioskowania. Scharakteryzowano wykonywane działania na każdym etapie zmiany i powiązane z nimi narzędzia. Zaprezentowano również zależności pomiędzy rodzajami zmian procesu planowania i sterowania produkcją a wykonywanymi etapami Logicznego Wnioskowania. W końcowej części artykułu przedstawiono schematy wykorzystania Logicznego Wnioskowania w przypadku zmiany całościowej i cząstkowej procesu planowania i sterowania produkcją.

EN

This paper presents stages of complete realization of change consistent with Theory of Constraints Thinking Process. The aim and the range of using TOC TP in the process of production planning and control are also shown in this article. This paper discusses the place of Thinking Process in activities of the process of production planning and control and types of change in this process and appropriate stages and tools of TOC TP.

2

Methodology of evaluation of value created in the productive processes

Roszak M. T.

Journal of Achievements in Materials and Manufacturing Engineering

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2008

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Vol. 31, nr 2

810-815

EN

Purpose: Of this paper was to present the methodology of analysis of the productive processes with application of value analysis and multi-criterion-analysis which allow to evaluate the technology and organization of the productive processes. Design/methodology/approach: Presented in the paper methodology of evaluation of the productive processes is based on analysis of activities in the productive processes and their characteristics with reference to created value in the productive chain. Findings: The paper presents elaborated by the author methodology and computer application for application in the chains of the productive processes. Research limitations/implications: Presented methodology allows to evaluate effectivity of the productive chains connecting aspects of the management and economics of the process. Practical implications: Presented methodology was used in analysis of the productive chains and their effectivity, and also as a benchmarking instrument. Originality/value: The paper presents originally elaborated computer application for the value added analysis in the productive chains.

3

Analysis of technological process on the basis of nonmaterials values

Krupińska B., Szewieczek D.

Journal of Achievements in Materials and Manufacturing Engineering

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2008

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Vol. 31, nr 2

786-793

EN

Purpose: What determines the correcttness of industrial company's functiioning on the market is technological process. In order to improve it continuously the priority should be technology, technology management and controlling. Design/methodology/approach: by means of this model one can analyzy the choosen technological processes for the sake of efficiency criteria. They describe following relationships: operation-material, operation-machine, operation-man, operation-technological parameters. Findings: This analisis shows hypothetical technological processes on production of typical pieces for machines. One has also taken into account nonmaterials parameters of technological process. They are resulting from applied sampels and projecting of the technological process. Practical implications: Thanks to the created aplication we can analyze efficiency of technological process in aspect of nonmaterial values. By the use of neural networks we can verify particle indicators of process operation quality, evaluate the process efficiency, which can constitute the optimization basis of particular operation. Originality/value: Data effecting from this analisis allowed to optimize the technological process. They estimate influence of the analyzed parameters on the whole process and optimizethe conducting of any process.

4

Improvement of technological processes by the use of technological efficiency analysis

Krupińska B., Szewieczek D., Dobrzański L. A.

Archives of Materials Science and Engineering

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2007

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Vol. 28, nr 12

751-756

EN

Purpose: Technological process is a basic determinant of correctness of industrial company’s functioning on the market. In this connection they should treat with the priority all activities connected with technology, technology management and controlling, that is with their continuous improvement. Design/methodology/approach: The basis for preparing the process analysis model are the indicators of fragmentary and technological efficiency, as well as standardized parameters of the technological process depending on the applied treatment. Findings: Thanks to the appropriate indicators it is possible to identify operations which need to be verified. Although interdisciplinary process control is very complex, it offers objective assessment. The assessment should include the influence of individual parameters on the process and enable good choice of the optimisation type. Practical implications: The process analysis with the use of immaterial parameters based on different types of processing and the design of the technological process involved assessment of technological process efficiency with the use of indicators of operational efficiency. Originality/value: Creating computer applications for calculating individual indicators, as well as final efficiency assessment used for planning optimisation of individual operations.

5

Software independence: impact on product development plan in automotive industries

Annarumma M., Naddeo A., Pappalardo M.

Journal of Achievements in Materials and Manufacturing Engineering

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2006

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Vol. 18, nr 1-2

431--434

EN

Purpose: Purpose of this paper: Actually, in automotive industries one of the most important activities in product design is the evaluation of various events (i.e. crash events) using FEM simulation; in this context, software independence, that means to obtain the same simulation results on the same car-model using different FEM solvers, will be useful for reducing virtual prototyping time and consequently Time To Market. Design/methodology/approach: Development of a software-indipendence translation method is the aim of this work, which is an input data translation by a methodology independent of the FE calculation environment and allows reducing drastically the product development time. This methodology will be developed writing ad hoc a routine in Matlab language, that carries back in LS-DYNA environment the cards written in RADIOSS environment, helped by TextPad editor and completed by pre-processor Hypermesh. Findings: The translation could be executed using the pre and post-processor Hypermesh and the RADIOSS model card manual correction, but this way to operate increases greatly the Time To Market, although today is the only method used in the most important Italian automotive industry. Research limitations/implications: A Software independence in Virtual Prototyping could help to accelerate several processes. The need to reduce costs and to increase quality is nearly obvious. Practical implications: Most of crash simulation models are developed in RADIOSS environment, but the LS-DYNA environment potentialities exploration has increased the simulations demand using LS-DYNA software; therefore the development of a translation method like that meets this requirement. Originality/value: For product designers, the development of a translation methodology, that allows to carry back in a software environment the Know How developed for another software environment, will be very useful (We’ve to remind that often many design tasks of a project are made in outsourcing way).

6

Metoda sterowania produkcją w gnieździe wytwórczym w warunkach jednoczesnej produkcji wieloasortymentowej

Kampa A., Knosala R.

Zarządzanie Przedsiębiorstwem

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2002

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Vol. 5, nr 2

41-55

EN

The problems of control of discreet production processes of mulitiasortment production executed in work cell are discussed in the work. Scheduling problem and analytical and heuristic method for solving then have been analyzed. Because of the complexity of analyzed scheduling problems. belonging to the class NP-hard combinatorial problems, solving heuristic method have been used to find the sequence of works according to the priority rules. This method let to find admissible solution in the case when is not possible to solve scheduling problem in the given time. Many priority rules apply to control the system of multiassortment production are know. These rules haven deference in their efficiency. So it is important to choose the rule that will be most proper and effective, which make possible generation of schedules than maximinized the choiced criterion. To solve the problem, described above. the methodology of computer aiding of production system control has been elaborated. This methodology is used to control the system of small and medium multiassortment series production. In the work is also presented an example of the production control in a manufacturing cell. To schedule production task in that cell the aiding system has been used. The system has been applied to choose the priority rules. Results have been compared with other system for production control. Simulation presented in the work let to state, that elaborated methodology and the computer system work property and confirm the statement in the thesis of the work.

7

Wielozakresowy model sterowania rozwojem i produkcją zakładu przemysłowego na przykładzie wydziału huty.

Korcyl A., Łebkowski P., Sławik T.

Prace Naukowe Instytutu Technologii Maszyn i Automatyzacji Politechniki Wrocławskiej. Konferencje

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2000

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Vol. 78, nr 36

147-150

PL

W pracy opisano model matematyczny sterowania produkcją i rozwojem zakładu produkcyjnego przeznaczony do optymalizacji doboru technologii i zdolności produkcyjnych zapewniających pokrycie zapotrzebowania na produkowane wyroby przy minimalnych nakładach inwestycyjnych i kosztach eksploatacji oraz opłat za użytkowanie środowiska w całym okresie planowania.

EN

The paper presents mathematical programming model for a steel mill division development planning problem. Subject to environmental quality constraints. The formulation proposed is a multi-period, mixed-integer linear program. Given a forecast of demand of various types over time and the upper limits for environmental emissions, the problem objective is to modify the system structure so as to meet the environmental constraints at a minimum total discounted costs of investment and the system operation over a planning horizon.

8

Metody i techniki komputerowe w przygotowaniu i zarządzaniu produkcją

Chlebus E.

Zarządzanie Produkcją

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1998

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Vol. 1, nr 1-2

16-23

EN

The paper presents general ideas on technologies and tools in production planning and control. Requirements of companies and directions for actions in this area are introduced. General structure and functions of the developed technical production preparation system are presented. Characteristics of modern production are discussed.