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All Journal Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Journal of Integrated and Advanced Engineering (JIAE)
Auberta, Genia
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Ergonomic Assessment and Relationship between Workload and Fatigue in Kitting Section Operators Nidhar, Ainun; Auberta, Genia; Nursalam, Rachmat; Matahelumual, Marselino; Sjahrul Annas, Muhammad
Journal of Integrated and Advanced Engineering (JIAE) Vol 4, No 2 (2024)
Publisher : Akademisi dan Saintis Indonesia (ASASI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51662/jiae.v4i2.163

Abstract

In the manufacturing industry, specifically in automotive sector, musculoskeletal disorders (MSDs) account for 11.4% of all workplace injuries. This is primarily due to the high demand for increased production capacity. The process of assembling automotive parts involves manually organizing materials before they are sent to the assembly line. The handling of large material loads and repetitive movements during this kitting process can significantly increase the risk of MSDs. A study was conducted to examine the ergonomic risks associated with the kitting process in a manufacturing environment. The study utilized the Rapid Entire Body Assessment (REBA) method to evaluate kitting operators for potential musculoskeletal disorders (MSDs) related to lifting, carrying, and placing materials during the kitting process. Additionally, kitting operators completed the Nordic Body Map (NBM) questionnaire for self-assessment. According to the REBA results, lifting activities (11 points) posed the highest risk, followed by placing materials (7 points) and carrying materials (4 points). The NBM responses indicated complaints of pain in the hands, shoulders, and back, with NBM scores of 36 and 48 points, signifying a low risk. Immediate action is necessary to reduce MSD complaints among packaging operators based on hazard control analysis. Recommendations have been made for ergonomic interventions, including improving work postures, regulating loads through ergonomic training, utilizing assistive devices, and making workspace adjustments to minimize the risk of MSDs. By implementing appropriate interventions and preventive measures, the risk of MSDs among kitting operators can be reduced, while improving work safety, comfort, and maintaining productivity and process efficiency
Crack Analysis of Polyoxymethylene Reinforce Glass Fibre Material on Locker Table Nidhar, Ainun; Auberta, Genia; Dewi, Anissa Puspa; Heryana, Ghany
Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Vol 9, No 2 (2024): Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mecha
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jtmm.v9i2.5488

Abstract

Polyoxymethylene (POM) is a type of thermoplastic that is frequently used in various industrial applications due to its good dimensional stability, corrosion resistance, and superior tensile strength. However, in certain applications such as locker tables, the weakness of this material is revealed in structural failures. This research uses the finite element simulation method to analyse the failure of a locker table exposed to a helical torsion spring. The main focus was on the fracture of the part connected to the helical torsion spring, a common problem in plastic material applications subjected to cyclic loading. Results showed that the fracture occurred at a stress level of 121.061 MPa, exceeding the yield strength value that should have been broken at 150 MPa. In addition, the analysis showed that the highest Von Misses stress occurred where the spring was located, exceeding the specified yield strength. Tensile tests showed the effect of ambient temperature on the tensile strength of the POM+25%GF material. The proposed solution through the development of an additional structure in the form of ribs on the product successfully increased the strength of the locker table under load. This research provides important insights in improving product design to minimise the risk of structural failure in POM+25%GF material.
Co-Authors Ainun Nidhar, Ainun Dewi, Anissa Puspa Ghany Heryana Matahelumual, Marselino Nursalam, Rachmat Sjahrul Annas, Muhammad