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2 2020

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Lean integration in maintenance logistics management: a new sustainable framework

100%

Hammadi S. , Herrou B.

tom Vol. 11, No. 2

99--106

The current industrial constraints on production systems, especially availability problems are complicating maintenance managers’ mission and making longer and further performance improvement process. Dealing with these problems in a wiser managerial vision respecting sustainability dimensions would be more eﬃcient to optimize all resources. In this paper, and after addressing the lean/sustainability challenge in a the literature to deﬁne main research orientations and critical points in manufacturing and then maintenance speciﬁc context, two case studies have been conducted in two production systems in Morocco and Canada, within the objective to set a clearer scene of the lean philosophy implementation in maintenance and within the sustainability scope from an empirical perspective. To activate the social dimension being often non-integrated in the lean/sustainability initiatives, the article authors reveal an original research direction assigning maintenance logistics as the leading part of our approach to cover all sustainability dimensions. Furthermore, its management is discussed for the ﬁrst time in a sustainable framework, where the authors propose a new model considering the lean/sustainable perspective and inspired by the rich Human-Machine interaction memory to solve daily maintenance problems exploiting the operators’ experience feedback.

Pick-up & Deliver in Maintenance Management of Renewable Energy Power Plants

58%

Vincenza C. , Francesco D. D. , Longheu A. , Malgeri M. , Mangioni G. , Romeo A. , Trapani N.

tom Vol. 21

579--585

Logistic optimization is a strategic element in many industrial processes, given that an optimized logistics makes the processes more efficient. A relevant case, in which the optimization of logistics can be decisive, is the maintenance in a Wind Farm where it can lead directly to a saving of energy cost. Wind farm maintenance presents, in fact, significant logistical challenges. They are usually distributed throughout the territory and also located at considerable distances from each other, they are generally found in places far from uninhabited centers and sometimes difficult to reach and finally spare parts are rarely available on the site of the plant itself. In this paper, we will study the problem concerning the optimization of maintenance logistics of wind plants based on the use of specific vehicle routing optimization algorithms. In particular a pickup-and- delivery algorithm with time-window is adopted to satisfy the maintenance requests of these plants, reducing their management costs. The solution was applied to a case study in a renewable energy power plant. Results time reduction and simplification and optimization obtained in the real case are discussed to evaluate the effectiveness and efficiency of the adopted approach.