Heuristic procedure for the assembly line balancing problem with postural load smoothness
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Publication Details
Author list: Jaturanonda C., Nanthavanij S., Das S.K.
Publisher: Taylor and Francis Group
Publication year: 2013
Journal: International Journal of Occupational Safety and Ergonomics (1080-3548)
Volume number: 19
Issue number: 4
Start page: 531
End page: 541
Number of pages: 11
ISSN: 1080-3548
eISSN: 2376-9130
Languages: English-Great Britain (EN-GB)
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Abstract
This paper presents a heuristic procedure for assigning assembly tasks to workstations where both productivity and ergonomics issues are considered concurrently. The procedure uses Kilbridge and Wester’s algorithm to obtain an initial task-workstation assignment solution which minimizes the balance delay of an assembly line. A task reassignment algorithm was applied to improve the initial solution by exchanging assembly tasks, which smooth postural load among workers, between workstations. A composite index of variation was used to measure the effectiveness of the task-workstation assignment solution. On the basis of clothes assembling, it was found that the task-workstation assignment solution with a minimum composite index of variation can be obtained with relatively equal weights in balance delay and postural load. © 2013 by Taylor & Francis Group, LLC.
Keywords
Assembly line balancing, Postural load smoothness, RULA, Upper extremities disorders
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