Ergonomic Evaluation of Simulated Apple Hand Harvesting by Using 3D Motion Analysis
Makaleler > Tam Makale · 2020
Yazarlar: Erdal ÖZ, Martina JAKOB
Ege Üniversitesi Ziraat Fakültesi Dergisi, Uluslararası, 2020, ss 91-100
Özet
Objective:The objective of this study was to conduct experiments by using 3D motion analysis system to reveal ergonomic exposures during apple hand picking. Material and Method:The study was carried out in the ergonomics laboratory located at ATB (Leibniz Institute for Agricultural Engineering and Bioeconomy Potsdam e.V.) in Germany with an artificial dwarf apple tree.Body postures, especially upper arm elevation, were determined by a 3D motion capture system.Evaluations were made according to ISO 11226 standard and RULA classification.Results: Average upper arm elevation changed between 27.86 ° and 33.60 °.Time spent with elevated arm above 20 0 , the base limit suggested by standards was found to be significant for entire experiments as 77% on average of the process time.It was estimated that 5 to 6 hours within 8 hour shifts per day may be spend with elevated arms more than 20 °.Conclusions: More detailed information was obtained in comparison to observational methods.This technique allows to determine the exact values of the arm positions depending on time intervals.It can also be used to find out other awkward postures such as trunk and head inclination and for any other work process.