In this study, we sought to develop a system to evaluate the workload of multiple sequential tasks using a digital human and muscle fatigue model, as well as test its validity using a sequential task experiment. The muscle fatigue model is the three-component model introduced by Xia et al. The model assumes that the muscle motor unit consists of resting, activated, and fatigued components. We used a temporal smoothed value of the active component ratio to the non-fatigued component to estimate workload. A system was developed using this model to evaluate workload of any combination of sequential tasks of the single manual handling task. A sequential task consisting of three kinds of material handling task performed by a digital human and real environment was prepared as a validity test. We found that the estimated workload using the simulation and the subjective scores showed a similar pattern with the load of the sequential tasks and repetitions.
CITATION STYLE
Seo, A., Sakaguchi, M., Hiranai, K., Sugama, A., & Chihara, T. (2019). Workload Estimation System of Sequential Manual Tasks by Using Muscle Fatigue Model. In Advances in Intelligent Systems and Computing (Vol. 825, pp. 82–86). Springer Verlag. https://doi.org/10.1007/978-3-319-96068-5_9
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