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Surrogate Model Development for Digital Experiments in Welding
Published on: March 28, 2025
Development of risk assessment tool for foundry workers.
G Madhan Mohan1, P S S Prasad, Anil Kumar Mokkapati
1Department of Production Engineering, PSG College of Technology, Peelamedu, Coimbatore, Tamil Nadu, India. gmadhanmohan@yahoo.co.in
Work (Reading, Mass.)
|January 8, 2009
Summary
Foundry workers face significant occupational health risks. A new Physical Effort Index effectively assesses ergonomic risk factors and worker discomfort, aiding in preventing work-related disorders.
Area of Science:
- Occupational health and safety
- Ergonomics
- Industrial hygiene
Background:
- Manufacturing industries, including foundries, exhibit high rates of occupational ill-health and work-related musculoskeletal disorders.
- Manual labor and ergonomic risk factors contribute significantly to conditions like low-back symptoms among foundry workers.
Purpose of the Study:
- To develop and validate a novel Physical Effort Index (PEI) for assessing risk factors in the foundry environment.
- To provide a tool for quantifying physical exertion and discomfort experienced by workers.
Main Methods:
- A validated questionnaire specific to the foundry environment was employed.
- Regression analysis was used to correlate the proposed Physical Effort Index with the established Borg's Ratings of Perceived Exertion (RPE) scale.
- Data were collected through surveys involving sixty-seven foundry workers across various shop floors.
Main Results:
- The study identified 'Job factors' and 'Work environment' as key parameters influencing worker discomfort.
- A significant correlation was established between the proposed Physical Effort Index and Borg's RPE scale.
- Subjective assessments of physical efforts were conducted for sixty-seven workers.
Conclusions:
- The developed Physical Effort Index effectively estimates risk factor levels in foundry settings.
- The index is a valuable tool for supervisors and managers to identify and mitigate workplace risks.
- Implementation of the PEI can lead to reduced work-related disorders and improved productivity.
