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    Wyświetlanie 1-2 z 2
    Tytuł:
    Maintenance Optimization for Transport Vehicles in a Supply Chain
    Autorzy:
    Rezg, Nidhal
    Sofiene, Dellagi
    Zied, Hajej
    Powiązania:
    https://bibliotekanauki.pl/articles/504640.pdf
    Data publikacji:
    2014
    Wydawca:
    Międzynarodowa Wyższa Szkoła Logistyki i Transportu
    Tematy:
    maintenance policy
    supply chain
    proportional hazard
    optimization
    Opis:
    In this paper, we are interested in determining a maintenance policy with an optimal cost to enable the company to generate significant profits, often the means of transport travelled different paths, they are characterized by the distance they covered; however each distance has an effect on the operating characteristics of means of delivery. The objective of this paper is twofold: It aims both to introduce the model of supply chain and specify distances, and codify the use of it in the proportional hazard model, later a maintenance policy was presented which takes into consideration the types of paths travelled by the means of delivery.
    Źródło:
    Logistics and Transport; 2014, 24, 4; 7-14
    1734-2015
    Pojawia się w:
    Logistics and Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated Maintenance-Quality Strategies Taking into Account the Impact off the System Degradation on the Quality of Output Products
    Autorzy:
    Gouiaa-Mtiba, Amal
    Dellagi, Sofiene
    Achour, Zied
    Erray, Walid
    Powiązania:
    https://bibliotekanauki.pl/articles/503750.pdf
    Data publikacji:
    2019
    Wydawca:
    Międzynarodowa Wyższa Szkoła Logistyki i Transportu
    Tematy:
    Integrated Maintenance strategy
    reworking activity
    deterioration
    optimization
    quality
    Opis:
    This paper deals with integrated models joining maintenance and quality. We consider a manufacturing system composed of a single machine subject to an increased random failure rate and producing conforming and non-conforming items. In order to decrease the random failure rate and its impact on the quality of output products, a bloc type preventive maintenance strategy with minimal repair is considered. Our study consists in developing integrated analytical models joining maintenance and quality in order to determine the optimal preventive maintenance plan taking into account the progressive quality perturbation and the economic impact of reworking activities. Two strategies are developed. In fact, for the first strategy, we propose reworking activities for all non-conforming products in order to improve their quality condition and to sell all batches at the best price Pmax. The aim of this strategy is to find the optimal number of batches produced and reworked N* before each preventive maintenance action, maximizing the total net profit per time unit PT1. For the second strategy, the same problem is studied but for a finite horizon. Two mathematical models are developed in order to find the optimal value of the decision variable N* for both strategies. Numerical examples are presented in order to illustrate the proposed models and a sensitivity study is developed to evaluate the influence of the variation of some parameters.
    Źródło:
    Logistics and Transport; 2019, 41, 1; 41-50
    1734-2015
    Pojawia się w:
    Logistics and Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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