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Sławomir Kłos and Peter Trebuna

Abstract

This paper proposes the application of computer simulation methods to support decision making regarding intermediate buffer allocations in a series-parallel production line. The simulation model of the production system is based on a real example of a manufacturing company working in the automotive industry. Simulation experiments were conducted for different allocations of buffer capacities and different numbers of employees. The production system consists of three technological operations with intermediate buffers between each operation. The technological operations are carried out using machines and every machine can be operated by one worker. Multi-work in the production system is available (one operator operates several machines). On the basis of the simulation experiments, the relationship between system throughput, buffer allocation and the number of employees is analyzed. Increasing the buffer capacity results in an increase in the average product lifespan. Therefore, in the article a new index is proposed that includes the throughput of the manufacturing system and product life span. Simulation experiments were performed for different configurations of technological operations.

Open access

Sławomir Kłos and Peter Trebuna

Abstract

This paper proposes the application of computer simulation methods in order to analyse the availability of resources, buffers and the impact of the allocation of workers on the throughput and work-in-progress of a manufacturing system. The simulation model of the production system is based on an existing example of a manufacturing company in the automotive industry. The manufacturing system includes both machining and assembly operations. Simulation experiments were conducted vis-à-vis the availability of the different manufacturing resources, the various allocations of buffer capacities and the number of employees. The production system consists of three manufacturing cells – each cell including two CNC machines – and two assembly stations. The parts produced by the manufacturing cells are stored in buffers and transferred to the assembly stations. Workers are allocated to the manufacturing cells and assembly stations, but the number of workers may be less than number of workplaces and are thus termed ‘multi-workstations’. Using computer simulation methods, the impact of the availability of resources, the number of employees and of the allocation of buffer capacity on the throughput and work-in-progress of the manufacturing system is analysed. The results of the research are used to improve the effectiveness of manufacturing systems using a decision support system and the proper control of resources. Literature analysis shows that the study of the impact of buffer capacities, availability of resources and the number of employees on assembly manufacturing system performance have not been carried out so far.

Open access

Sławomir Kłos and Peter Trebiina

Abstract

This paper proposes the application of the Analytic Hierarchy Process method to support decision making regarding the selection of an Enterprise Resource Planning system in a manufacturing company. The main assumption of the work is that the management of the selection of an ERP system should consider that the most important selection criteria are concerned with the functionality of the ERP system. Besides this, the aspects of total cost of ownership, technical support and implementation time or vendor experience are taken into consideration to guarantee a successful ERP implementation. The proposed procedure of an ERP system selection is dedicated for small and medium manufacturing enterprises. A structure of attributes for the AHP method is proposed on the basis of an analysis and identification of critical success factors. Different kinds of production (make-to-stock, make-to-order and engineer-to-order are taken into consideration). Illustrative examples are also given.

Open access

Sławomir Kłos and Justyna Patalas-Maliszewska

Abstract

This paper presents a methodology for implementation of an ERP system in the area of production maintenance. The methodology is based on integration of monitoring maintenance events, manufacturing data registration and an employee motivation system.. The maintenance processes discussed in the paper encompass activities in the area of disaster recovery, overhauls, changeovers and special equipment production. This methodology requires implementation of an effective system of data registration and the design of a motivation system for maintenance staff based on the registered data. The models of the maintenance processes are proposed and the illustrative examples are given

Open access

Justyna Patalas-Maliszewska and Sławomir Kłos

Abstract

This paper presents the relationship between the various kinds of knowledge that should be acquired, created, accumulated, shared, and transferred within a manufacturing company in order to improve organizational effectiveness. It is based on the data obtained from 85 Polish and German manufacturing companies from the cross-border cooperation region of Lubuskie/Poland - Brandenburg/ Germany. This is followed by a discussion of the results of empirical studies and of the supporting literature.