Wyniki wyszukiwania - BazTech

1

Analysis of Utilisation States and Reliability Parameters of Process-Line Configuration for Low-Quality Rock Deposits

Bodziony Przemysław, Patyk Michał

Advances in Science and Technology. Research Journal

|

2021

|

Vol. 15, no 3

126--133

EN

The production performance of mining and also construction equipment (like haul trucks, excavators, loaders, crushing and screening equipment) depends on its availability and utilisation states. Thus, it is necessary to determine the mean availability and structure utilisation of machinery systems with the aim to improve the same. At the same time, a detailed analysis of machinery operation data can result in a more effective management of mining plant operations and the mining process itself. Determination of operational state indices and their individual components allows to start preventive actions, resulting in the improvement of the organisation of work of the entire mine machinery system. Moreover, the future technical state of machines operated in surface mining is closely related to the current state and depends also on the events that have occurred in the extraction system. The analysis of dependability parameters can have a significant impact on decision-making, related both to the processes of use and maintenance, and, primarily, to all main operational processes of the mine. Different mines follow different terms and maintain different information. The only common information in most of them concerns the availability and utilisation of mining and construction equipment, which might be useful. There is a need to develop proper feedback and to define terms, factors and indices related to mining equipment. Below follows an analysis of selected operational parameters and the mean availability in the process of using the mining and construction equipment. This type of analyses help determine the operational potential of every element in the engineering system, understood as the ability to perform work processes. The analyses also illustrate how the reliability parameters change with the durability of the operated machinery. This makes it possible to identify the machines with the highest and lowest damage rates and such analyses can form the basis for the creation of optimised machine systems.

2

Multiple-criteria decision-making for the choice of equipment in mining using the AHP method

Bodziony Przemysław, Patyk Michał, Kasztelewicz Zbigniew

New Trends in Production Engineering

|

2019

|

Vol. 2, Iss. 1

404--415

EN

Rational solution for mining equipment based on the use of haul trucks, excavators, wheel loaders and crunchers should result from thorough analysis of technical and economic issues – both cost-related and exploitational - which can have a crucial impact on the cost of minerals extraction. Moreover mining equipment should be selected with consideration for all vital parameters in specific exploitational conditions and even the exploiter’s preferences. This selection should consider hitherto disregarded criteria, such as mean availability and structure utilization of machinery systems with the aim to improve the same. Methodology presented in the paper illustrates practical application of MCDM and one particular method of this type – the Analytical Hierarchy Process (AHP) – for resolving the problem in specific exploitational conditions of mineral resource in surface mining AHP method covers a multi-criteria approach based on a compensation strategy to model preferences and assuming variant comparability. Taking into account the preferences of the evaluator, which determine the subjectivity of comparative evaluation, is the core of the multi-criteria approach, which treats such preferences Considering the above issues, the following paper is an attempt to develop new and universal criteria as well as a method of evaluation and selection of means of mining equipment for mineral resource surface mines.

3

Systemy telematyki w zarządzaniu i bezpieczeństwie w transporcie drogowym

Lewiński A., Perzyński T., Skrok W.

Autobusy : technika, eksploatacja, systemy transportowe

|

2016

|

R. 17, nr 12

1831--1834

PL

W artykule przedstawiono rozwiązania dedykowane poprawie bezpieczeństwa transportu oraz związane z zarządzaniem w transporcie drogowym. Przedstawione rozwiązania stanowią przykłady systemów telematyki transportu. Dodatkowo w pracy zaproponowano model matematyczny systemu telematyki transportu oparty na teorii procesów stochastycznych. Takie podejście pozwoliło to na oszacowanie parametrów niezawodnościowych.

EN

The article presents solutions dedicated to improving the safety of transport and related to the management of road transport. Presented solutions are an examples of transport telematics systems. In addition, in the paper proposed a mathematical model of telematics transport based on the theory of stochastic processes. Such approach allowed to estimate the reliability parameters.

4

Integrated software tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 2. Integrated software tools application – Exemplary system operation and reliability unknown parameters identification

Blokus-Roszkowska A., Kołowrocki K., Fu X.

Journal of Polish Safety and Reliability Association

|

2011

|

Vol. 2, No. 2

279--288

EN

There is presented the application of the integrated software tools to the operation and reliability models of an exemplary complex technical system unknown parameters identification. There are performed in the paper, the exemplary system operation and reliability analysis and modelling. The identification of the probabilities of transitions this system operation process between the operation states and the conditional mean values of this process sojourn times at the particular operation states because of the lack of statistical data is performed throw the arbitrary fixing their values assumption. Next using the computer program CP 8.3 the automatic evaluation of the system components unknown intensities of departures the reliability state subsets and the identification of the exponential forms of their multistate reliability functions on the arbitrarily fixed statistical data coming from the system components states changing processes are performed as well.

5

Wpływ prac pod napięciem oraz zmian konstrukcyjnych na parametry niezawodnościowe wybranych urządzeń eksploatowanych w układach dystrybucyjnych SN/nn

Chojnacki A. Ł.

Wiadomości Elektrotechniczne

|

2008

|

R. 76, nr 4

24-25

PL

Przedstawiono parametry niezawodnościowe wybranych urządzeń stacyjnych w sieci dystrybucyjnej, ze wskazaniem na znaczenie wykorzystania nowoczesnych technik eksploatacji urządzeń elektroenergetycznych.

EN

The paper presents reliability parameters of selected equipment operated in complex power facilities, i.e. overhead MV transformer-distribution stations. The importance of modern operation technology of electric power equipment is indicated.