I e II, Cortina Editore. Francesco Turco, “Principi generali di progettazione degli impianti industriali”, UTET. Arrigo Pareschi, “Impianti industriali. UNIBO Industrial. Industrial Engineering. Engineering & Logistics. Logistics GROUP. Arrigo Pareschi. Full Professor [email protected] Emilio Ferrari. A. Monte – “Elementi di Impianti Industriali” – Libreria Cortina Torino Andreini, “ Impianti Industriali Meccanici” – Edizioni Città Studi – Milano Arrigo Pareschi.

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Advanced Models & Tools for Inbound & Outbound Logistics in Supply Chain

A s o f t w a r e t o o l 54 The obtained solution is the best proposed by the solver when applied to the simplified minimization problem and it is an admissible solution for the original and more complicated decision problem. Goods must be unpacked, sorted, stored, repacked, and sent out to their correct destinations. A s o f t w a r e t o o l 44 Figure 18presents the main menu of the automatic platform LD-LogOptimizer for the execution of the strategic planning.

Fn clustering algorithm obtains on average a reduced travel distance for the storage assignment based on the clustering process. Figure 30 summarizes the main steps for the operational planning a implemented by LD- LogOptimizer. Due to the labour intensity, low level systems often are called manual order picking systems.

The batch size is determined based on the required time to pick the whole batch completely, often between 30 minutes to 2 hours see Petersen, In the past when push production was the general standard, warehouses served primarily as storage facilities. Consequently in general it is possible to travel from a DC to a distributor by several available transportation modes, e.


Advanced Models & Tools for Inbound & Outbound Logistics in Supply Chain

It may be seen clearly from figure that similarity levels out for the first 50 clusterings, after that it dramatically falls to similarity value equal to 0,5. Furthermore, these rules are strictly connected to the assignment rule previously illustrated.

Consolidato Certifico S.

In this phase the products are indusyriali in the sequence shown on the previously defined priority list, and the correct storage quantities are assigned to each product. Results for relative travel distance Anova Factors D. A scheme to classify warehouse design and operation planning problems is shown in Figure 34 Jinxiang Gu et al.

A more advanced way to store pallets is with the use of pallet racks.

Framework for warehouse design and operation problems A more detailed description of each problem category identified is given in Table 4. In particular, the second figure shows that the demand density is higher for shelves closer to the depot area justifying the results and the best performance obtained: Il presente regolamento si applica ad apparecchi e accessori.

The second phase in the Family Grouping process is the Clustering analysis. By the introduction of these new hypotheses and assumptions it was necessary to recalculate the performance and costs associated to the AS-IS configuration of the network which differs from AS-ISI. The following sections of this chapter develop, test, and compare a set of different storage allocation rules based on the application of original similarity coefficients and clustering techniques.


Consequently, the correlated storage assignment performs better than popularity and class based storage strategies. It pretends to integrate routing problem in the evaluation of correlation between products.

Typical warehouse operations Inspired by: Rosenblatt and Eynan developed an algorithm involving a one-dimensional search for obtaining the boundaries for any desired number of classes in an automated warehouse. Resources, such as space, labor, and equipment, need to be allocated among the different warehouse functions, and each function needs to be carefully implemented, operated, and coordinated in order to achieve system requirements in terms of capacity, throughput, and service at the minimum resource cost.

Annual sales by county 2. Visualization of the results Similarly to the Case Study I, the effect of the assignment rules can be visualized in the storage system adopting the proposed representation. About four hundred orders are generated randomly by a computer. Load capacity of a picker. The meaning and role of the similarity indices, dendrograms, similarity threshold-cut values, and clustering algorithms, is not object of this chapter.

Interaction Plot for total travel time 5. The splitting of initial data is a necessary step in order to avoid the so called overfitting data problem and outcome bias. A typical order might comprise hundreds of items and the total flow of products is huge.