Digital Humans for Virtual Assembly Evaluation
This paper studies the use of Virtual Reality and Human Simulation for the ergonomic evaluation of manual assembly processes. A virtual environment has been developed to represent the actual workspace where the assembly task took place. Into the virtual workspace, a digital human /mannequin was imported and programmed to simulate the task, in the same manner as it would be done by the actual worker. Based on the posture-based ergonomics analysis, each posture of the digital human has been “translated” into comfort scores, resulting in conclusions, related to the ergonomic efficiency of the process and in the design of the workstation. The conclusions that have been reached identify the critical points, during the assembly task, and lead to the necessary re-design actions in order for the worker’s fatigue as well as the task’s execution time to be reduced. A real-life assembly task of a commercial refrigerator has been implemented in order for the capabilities of the proposed process design evaluation method to be demonstrated.
KeywordsVirtual Reality Digital Humans Virtual Assembly Process Design Evaluation Ergonomics Analysis
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