The use of dynamic work sharing production methods to reduce the impact of labour turnover in serial assembly lines
by J. Rene Villalobos, Marco A. Gutierrez, Luis R. Mar, Octavio Sanchez, Omar Ahumada
International Journal of Manufacturing Technology and Management (IJMTM), Vol. 23, No. 1/2, 2011

Abstract: Labour turnover is one of the major complications that industry faces on a daily basis. Turnover is particularly harmful to serial assembly lines. The learning process that a new operator must undergo when first introduced to an assembly line station generates blockage and starvation in the previous and successive stations, causing a reduction in the line's throughput. In this paper, we analyse different work allocation strategies for serial assembly line designs in order to determine which designs perform best under the presence of labour turnover and a task-learning process. In particular, we compare the traditional balanced line with two other assembly line designs, a variant of the bucket brigades (BB) and a hybrid method – the modified work sharing (MWS) method. By making a judicious use of control buffers, the MWS method seeks to combine the positive characteristics of both the BB and traditional balanced lines to naturally adapt to different levels of labour turnover. The results presented in this paper show that the MWS outperforms the BB and the balanced designs.

Online publication date: Thu, 27-Nov-2014

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