In this paper, we investigated a semi-automated automotive engine assembly line in which the traditional strategy of using fixed workers in each manual assembly section is replaced by a new strategy of using walking workers. With this approach, both worker and engine travel simultaneously down the line; each worker is previously trained to accomplish a series of assembly tasks independently from start to finish in each manual assembly section. The main problem of this design is that each worker needs to be cross-trained to acquire a satisfactory level of skills associated with the assignment of assembly tasks in order to retain a relatively even working speed between two adjacent workstations. In theory, the familiar degree of completing the assigned tasks by each worker through training can be measured and expressed as a learning curve. In this case study, the learning curve has been used to determine a trade-off decision between the complexity of assigned tasks and the duration of completing these tasks by a walking worker at a stabilized level. The paper describes a framework of assessing the human performance by modeling a learning curve for each walking worker based on an integrated model. Thus, a possible and realistic assignment of assembly tasks for a walking worker can be quantified.
|Title of host publication||ICMS2010: Proceedings of the Third International Conference on Modelling and Simulation, Vol 4 - Modelling and Simulation in Biology, Ecology & Environment|
|Editors||Y Jiang, H Bao|
|Place of Publication||Liverpool|
|Publisher||World Academic Union|
|Number of pages||7|
|Publication status||Published - Jun 2010|
|Event||3rd Joint International Conference on Modelling and Simulation and 3rd International Conference on Information and Computing Science - Jiangnan University, Wuxi, China|
Duration: 4 Jun 2010 → 6 Jun 2010
|Conference||3rd Joint International Conference on Modelling and Simulation and 3rd International Conference on Information and Computing Science|
|Period||4/06/10 → 6/06/10|
Wang, Q., Sowden, M., Mileham, A., & Owen, G. (2010). Modeling human performance using learning curves. In Y. Jiang, & H. Bao (Eds.), ICMS2010: Proceedings of the Third International Conference on Modelling and Simulation, Vol 4 - Modelling and Simulation in Biology, Ecology & Environment (Vol. 4, pp. 1-7). Liverpool: World Academic Union.