The 3rd International Conference on Applied Mathematics in Engineering (ICAME’24), Balıkesir, Turkey, 26 - 28 June 2024, pp.141, (Summary Text)
Since cobots are more flexible than robots, they can be used in different areas of production and can work at the same workstation with the operator. Thanks to these features, the use of cobots in production is becoming increasingly widespread. Assembly lines are mass production systems that have an important concept in production. In these lines, to produce a final product, components are assembled sequentially into an incomplete product, depending on a certain task order [1]. With the use of operators and cobots together on assembly lines, the structure of assembly line balancing problems becomes more complex and new problem areas emerge. In this study, a mixed model robotic assembly line balancing problem is addressed. In the problem, the cost of assembly line is minimized. As cost items, workstation opening cost, cobot cost and operator cost are also considered [2]. Since cobots and operators are heterogeneous, the unit cost of each type of cobot and operator varies. One operator and one cobot can work together at the same workstation and perform tasks in parallel. Tasks cannot be divided and are assigned to resources in accordance with the common precedence diagram. Not all types of resources can perform every task due to their capabilities. A numerical example is solved under various cycle time scenarios and the results are interpreted to examine the effects of problem-specific features on the objective function. When the results are examined, it is seen that the presented mathematical model gives quality solutions for small-sized data sets.