Paper Information

Journal:   JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING   FALL 2017 , Volume 4 , Number 3 #B0042; Page(s) 17 To 25.
 
Paper:  ERGONOMIC EVALUATION OF WELDERS’ POSTURE AND BIOMECHANICAL ANALYSIS OF LOADS ON THE SPINE BY CATIA SOFTWARE IN IRAN GAS TRANSMISSION COMPANY
 
Author(s):  TAHMASEBI REZA, ANBARIAN MEHRDAD, TORKASHVAND SADAF, MOTAMEDZADE MAJID*, FARHADIAN MARYAM
 
* DEPARTMENT OF ERGONOMICS, SCHOOL OF HEALTH, HAMADAN UNIVERSITY OF MEDICAL SCIENCES, HAMADAN, IRAN
 
Abstract: 

Background and Objective: Nowadays, observational methods based on video recording of work processes and its analysis by using computer software are widely used. Therefore, we attempted to assess welders’ posture and its biomechanical analysis by using computer aided three-dimensional interactive application (CATIA) software.
Materials and Methods: This study was performed among welders of Iranian Gas Transmission Company. The evaluated postures, which included three postures, were determined from photos and videos, which were recorded during the welding process. After determining the target postures, digital human models were simulated in the CATIA software. Then, rapid upper limb assessment (RULA) method and biomechanical analysis of forces were performed on the human digital models.
Results: The analytical results were directly extracted from the CATIA software. The final scores of the three postures evaluated using RULA method indicated that for two postures, immediate corrective action is required, and for one posture, corrective action should be taken in the near future. In addition, biomechanical analysis of forces in one of those postures revealed forces higher than the recommended limit by the National Institute for Occupational Safety and Health.
Conclusion: CATIA software provides a better assessment of workers’ conditions in workplaces. Analysis using RULA method is a significant measure in evaluation and redesign of workstations.

 
Keyword(s): BIOMECHANICAL ANALYSIS, DIGITAL HUMAN MODELING, ERGONOMICS; POSTURE ASSESSMENT, WELDING POSTURE
 
References: 
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