Journal of Optimization / 2018 / Article / Tab 2

Research Article

Multiobjective Simulation-Based Optimization Based on Artificial Immune Systems for a Distribution Center

Table 2

Initial model settings.

ItemValue

Conveyor speed2.5 m/sec (limit: 1–2.5 m/sec)

Conveyor spacing1 parcel

Number of workers deployed for each conveyor entrance7 workers (limit: 1–9 workers)

Number of workers deployed for each conveyor exit (serving 1 destination)2 workers (limit: 1–4 workers)

Number of workers deployed for each conveyor exit (serving 2 destinations)4 workers (limit: 1–6 workers)

Handling Capacity of Worker1 parcel

Arrival pattern for each sourceUniform distribution with a min. of 5 sec and a max. of 10 sec

Processing time of deconsolidation processNormal distribution with a mean of 30 sec and a standard deviation of 2 sec

Demand for each destinationUniform distribution with a min. of 220 units and a max. of 280 units

The above model parameters are set based on the real system settings and observation.

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