The Importance of Ergonomic Risk and the Methods to Follow for a Problem of Assembly Line Balancing

Abstract

In this paper, we consider the problem of the assembly line balancing, which allows us to find the assignment of each task that respects fixed constraints while optimizing the repair of working time. However, some other factors can affect productivity and workers, such as repetitive work, handling heavy loads. In this last case, workers in the assembly are subject to ergonomic risks. Besides, it is very important to reduce these risks which is the aim of this research where we attempt to show the importance of ergonomic of an assembly line and to prove the influence of its risks on an assembly line balancing problem. In fact, poor division of labor between stations can lead to unnecessary idle time and unnecessary additional costs for each part produced. In addition, the ergonomic risks can be included in inactivity and this underlines the importance of reducing this risk and its effect on the line. Thus, we expose in this paper a mathematical model to perform the assembly line balancing problem with ergonomic risks which are to reduce.