Development of an algorithm for evaluating the comprehensive ergonomic indicator of hand tools
DOI:
https://doi.org/10.32347/2411-4049.2024.1.68-84Keywords:
hand tools, ergonomics, check-list, algorithmAbstract
Objective: development of an algorithm for evaluating the comprehensive ergonomic indicator of hand tools to reduce physical strain during their use.
Materials and Methods. The algorithm development utilized the nomenclature of ergonomic indicators specified in DSTU 7895:2015 "Design and Ergonomics. Rules for evaluating the ergonomic level of quality of industrial products," which is categorized into two levels. The first level includes usability, control and monitoring convenience, product planning, serviceability, product hygiene, and safety. The second level involves physical and mental workload, fatigue, and compliance with anthropometric parameters.
Results. An algorithm for evaluating the comprehensive ergonomic indicator of hand tools has been developed, consisting of five steps: compiling a list of ergonomic characteristics of hand tools according to production tasks, selecting a group of five or more experts, conducting preliminary assessment of the product's comprehensive ergonomic indicator, analyzing expert assessments, discussing strengths and weaknesses, construction, and making decisions regarding the choice of weight coefficients, verifying the obtained results, and developing recommendations for application conditions for a specific product. The distinctive feature of the proposed algorithm lies in establishing weight coefficients of the tool's characteristics considering safety, convenience, and working conditions. The results of evaluating the comprehensive ergonomic indicator of angle grinders are presented, allowing for the effectiveness of the developed algorithm based on feedback from study participants and providing recommendations for its further improvement.
The novelty lies in establishing correlations between two levels of ergonomic indicators through weight coefficients, allowing for the consideration of the complexity of working conditions, safety, and convenience of hand tools.
Practical value: сhecklists for processing score assessments based on established ergonomic criteria have been developed.
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Copyright (c) 2024 Tsopa V.A., Kruzhilko O.Y., Cheberiachko S.I., Deryugin O.V., Nehrii T.O.
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