Lead-time variability in a homogeneous queueing model of batching

Article Abstract:

A study was conducted to analyze the association between batch sizes and lead-time variability using a homogeneous queueing framework. In line with this, a single machine work center generating a set of different items was examined. The center supported a number of parameters. These include demand and processing rates for an item, setup time, batch sizes and productive utilization. Results indicated that the minimization of an average queueing delay or an average time in system performance measure will not reduce the lead-time variance.

Research, Methods, Analysis, Production management, Queuing theory, Economic lot size, Lead time

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Actions taken to prevent the propagation of disturbances in manufacturing systems

Article Abstract:

Manufacturing companies sometimes experience disturbances that disrupt schedules and negatively affect productivity. These can be prevented by formal or informal safety actions, which vary in absorption degree. However, since no perfectly efficient method is available to prevent the propagation of disturbances, firms have three other options in partial delivery, subcontracting and moving personnel.

Management, Manufacturing processes, Manufacturing, Business cycles

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