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Andi Adriansyah
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Sinergi
Published by Universitas Mercu Buana
ISSN : 14102331     EISSN : 24601217     DOI : https://dx.doi.org/10.22441/sinergi
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
SINERGI is a peer-reviewed international journal published three times a year in February, June, and October. The journal is published by Faculty of Engineering, Universitas Mercu Buana. Each publication contains articles comprising high quality theoretical and empirical original research papers, review papers, and literature reviews that are closely related to the fields of Engineering (Mechanical, Electrical, Industrial, Civil, and Architecture). The theme of the paper is focused on new industrial applications and energy development that synergize with global, green and sustainable technologies. The journal registered in the CrossRef system with Digital Object Identifier (DOI). The journal has been indexed by Google Scholar, DOAJ, BASE, and EBSCO.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 22 Documents
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Search results for , issue "Vol 28, No 2 (2024)" : 22 Documents clear
Redesign wheelchairs for stroke sufferers using the Quality Function Deployment method Apriani, Ratna Agil; Purnomo, Hari
SINERGI Vol 28, No 2 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2024.2.008

Abstract

The prevalence of stroke in Indonesia continues to increase, so there is a need for mobility assistance. In today's era, high mobility is necessary to live with freedom, but stroke sufferers still struggle to achieve comfort when using this mobility, namely wheelchairs. The author conducted research to redesign a wheelchair that is tailored to the needs of stroke sufferers. This research was conducted using the Quality Function Deployment method to obtain information on the needs of stroke sufferers and the Wilcoxon Difference Test method to determine the level of difference between old wheelchair designs and improvements. The results showed that the wheelchairs needed by stroke sufferers were multifunctional, ergonomic, flexible, safe, and materially sound. In the results of the Wilcoxon Difference Test, which was carried out based on the hypothesis, it is known that only the flexible attribute has no difference compared to the previous wheelchair design product. In contrast, the other four attributes have different values for the old wheelchair design and the improved design. Thus, redesigning wheelchairs is accomplished by obtaining design specifications that meet the needs of stroke sufferers.
Optimization of preventive maintenance on critical machines at the Sabiz 1 plant using Reliability-Centered Maintenance method Cahyati, Sally; Puspa, Sofia Debi; Himawan, Riswanda; Agtirey, Novan Rojabil; Leo, Joseph Andrew
SINERGI Vol 28, No 2 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2024.2.015

Abstract

Maintenance planning is the first step in an industry, especially when it comes to the trade-off between cost and reliability, which is the reason for this research's aim. The Reliability Centered Maintenance (RCM) method will be used in this research to optimize maintenance activity in critical machines at the Sabiz 1 plant to minimize downtime, costs incurred for machine repairs, and production losses. The tools of RCM that will be used such as FMEA to determine critical machines as the focus of analysis, a Fishbone Diagram to determine the causes of failure, an RCM worksheet to get preventive activities, and a statistical distribution approach to obtain appropriate preventive activity intervals. The result of data processing shows that all data has a lognormal distribution and can be continued using the lognormal distribution method. The results of this analysis are the preventive maintenance activities proposal and their intervals as a reference for Sabiz 1 plant maintenance planning. The preventive maintenance plan for three critical machines is the high-pressure pump is four days of inspection activities and two days for replacement activities; for the powder, base conveyor is four days of checking activities and 17 days for replacement activities; and for the extraction tower fan for inspection, activities is seven days. The prediction of the implementation impact of this maintenance planning will save maintenance costs around 70% compared to historical costs.

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