Applying the quick exposure check in the workstation design process, physical and virtual prototype assessment

Applying the quick exposure check in the workstation design process, physical and virtual prototype assessment

Ipaki, Bahram (Tabriz Islamic Art University)
Molenbroek, J.F.M. (TU Delft Applied Ergonomics and Design)
Merrikhpour, Zahra (Bu-Ali Sina University)
Faregh, Seyed Ali (Tabriz Islamic Art University)

2023

BACKGROUND: The Quick Exposure Check (QEC) assesses four major body parts and engages users in assessing some physical interactions relevant to design in task analysis. OBJECTIVE: In this paper, we investigated the application of QEC as the ergonomic intervention to detect pre-production ergonomic design faults in the apple sorting machine by applying physical and virtual prototyping for three different tasks analysis divided into two phases (Task 1: Apple harvesting and preparation for sorting; Task 2: Sorting control and separation of waste fruits; Task 3: Transfer of separated apples). METHOD: First, the QEC questionnaire was administered while Iranian participants interacted with the machine to detect abnormal posture. Second, we redesigned a concept of the machine and assessed it with QEC by a focus group. RESULTS: Before design, the high pressure in Task 1 is on the back (dynamic), shoulder/arm, and very high pressure in Task 2, and in Task 3 on the back (static), arm/shoulder/neck, making an uncomfortable situation for posture. After redesign, we observed decreased pressures on the back/shoulder/arm in Task 1 from high to medium, in Task 3 from very high to low, and also in Task 2, this was detectable decreasing from very high pressures on the back/shoulder/arm and the high pressures on the neck to medium. CONCLUSION: Prototyping with QEC demonstrated that accurate redesigning of the machine with concentration on shifting from static tasks to dynamic or conversely, and ease of access by adjusting dimensions according to anthropometry and auxiliary products, could reduce musculoskeletal disorders.

Equipment design
ergonomic design
human-machine interaction
prototyping technique
task analysis

http://resolver.tudelft.nl/uuid:32a3c6b6-b36a-4a12-b37a-fa7e46eeb0a5

https://doi.org/10.3233/WOR-220503

2024-05-19

1051-9815

Work: a journal of prevention, assessment & rehabilitation, 76 (2), 569-586

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2023 Bahram Ipaki, J.F.M. Molenbroek, Zahra Merrikhpour, Seyed Ali Faregh