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Examining the fatigue-quality relationship in manufacturing
Marcus Yung1, Ahmet Kolus2, Richard Wells3
1Canadian Institute for Safety, Wellness, & Performance, Conestoga College Institute of Technology and Advanced Learning, Kitchener, Ontario, Canada.
Applied Ergonomics
|August 27, 2019
Summary
Human fatigue significantly impacts manufacturing quality, contributing to deficits. This study quantifies the relationship, finding fatigue accounts for up to 42% of quality variance, highlighting the need for human factors integration.
Area of Science:
- Industrial Engineering
- Occupational Health Psychology
- Manufacturing Systems
Background:
- Human factors (HF) are increasingly linked to manufacturing quality.
- Human fatigue is a frequently identified factor in the human factors-quality relationship.
- Existing reviews highlight the need for deeper investigation into fatigue's specific impact.
Purpose of the Study:
- To examine the conceptualization and measurement of human fatigue in manufacturing quality research.
- To quantify the relationship between fatigue and manufacturing quality deficits.
- To explore the macroergonomic implications for quality assurance.
Main Methods:
- Systematic review of empirical studies linking human factors and manufacturing quality.
- Analysis of 26 studies specifically addressing human fatigue.
- Quantitative assessment of fatigue's contribution to quality variance.
Main Results:
- Physical fatigue was identified as the primary contributor to quality deficits in 46% of relevant studies.
- A positive relationship exists between fatigue and quality deficits.
- Fatigue was found to account for up to 42% of the variance in manufacturing quality.
Conclusions:
- Human fatigue plays a substantial role in manufacturing quality issues.
- Further research is necessary to refine the analysis of fatigue's impact.
- Integrating human factors, particularly fatigue management, into design and quality assurance is crucial.
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