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Accurate: Journal of Mechanical Engineering and Science
Published by Politeknik Negeri Cilacap
ISSN : 27224279     EISSN : 27225089     DOI : https://doi.org/10.35970
Core Subject : Science, Engineering,
Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Accurate: Journal of Mechanical Engineering and Science is a peer-reviewed open-access journal with e-ISSN 2722-5089 and p-ISSN: 2722-4279 published by Pusat Penelitian dan Pengabdian Masyarakat (P3M) Politeknik Negeri Cilacap. The journal invites scientists and engineers to exchange and disseminate theoretical and practice-oriented in the various topics include, but not limited to mechanical Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 93 Documents
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APLIKASI CVT PADA SEPEDA MOTOR LISTRIK (SEMOLI) GENERASI 2 Girawan, Bayu Aji; Nur Akhlis Sarihidaya Laksana; Unggul Satria Jati
Accurate: Journal of Mechanical Engineering and Science Vol. 5 No. 2 (2024): October 2024
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v5i2.2547

Abstract

The trend of using electric motorbikes to drive two-wheeled vehicles in Indonesia has started to increase. This is because the increasing public awareness of the benefits of electric vehicles is linked to the decreasing fossil energy reserves. Apart from that, electric vehicles are an environmentally friendly means of transportation because they do not cause air pollution. Based on previously research SEMOLI Generation 1, it is known that the use of a sprocket and chain transmission model on electric motorbikes produces less than optimal performance when used on flat roads, because on flat roads there is no need for large torque. The aim of this SEMOLI Generation 2 research is to conduct experiments using a CVT transmission which is predicted to be able to provide large torque when the road conditions are uphill, and able to provide higher speeds when the road conditions are flat. The research stages carried out successively are: conducting studies, selecting transmissions, assembling, fabricating, designing frames and swing arms, testing, and preparing documents. Based on the test results, it was found that using a CVT was able to increase maximum speed on both horizontal and uphill road conditions. This increase is because CVT has a wide transmission comparison range, so it is able to overcome uphill and horizontal road conditions.
Analisis Proses Preventive Maintenance pada Pump Tank Farm PT. H dengan Metode Fuzzy Failure Mode and Effect Analysis (FMEA) di PT. M Yosika Novsiano; Ulikaryani; Ghia Pisti Cikarge
Accurate: Journal of Mechanical Engineering and Science Vol. 6 No. 1 (2025): April 2025
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v6i1.2675

Abstract

PT.M with PT. H in the preventive maintenance process of the pump tank farm unit. Before the maintenance process is carried out, an analysis is carried out to determine the priority and scale of potential failures that occur in the pump unit at PT. H. The main purpose of preventive maintenance is to ensure all machinery and equipment are functioning properly and improve their reliability.  This analysis is carried out as an action to eliminate or reduce the risk of danger, especially for the highest risk priority, before carrying out preventive maintenance. The analysis method used is the fuzzy logic FMEA method through simplification with the Three Triangular Fuzzy Number method. Based on the results of the fuzzy RPN calculation in the table above, there are seven pumps that are prioritized for preventive maintenance actions. The seven pumps are UP-AT-01A, UP-AT-01B, TP-AT-01A, TP-AT-01B, TP-AT-06A, TP-AT-04A and UP AT-03B.
Integrated Mechanized System of Agro-Aquaculture System: Sustainable Farming Model for Poultry, Catfish, and Small Scale Farm. Ekpechi, Daniel; Nwufo, Olisaemeka Chukwudozie; Asonye, Gladys Uche; Emeziem, Victor Chukwuemeka; Nwankwo, Anthony Chukwudi; Kalu, Okafor; Oguoma, Onyewuchi Nduwuishi
Accurate: Journal of Mechanical Engineering and Science Vol. 6 No. 1 (2025): April 2025
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v6i1.2680

Abstract

One of the major factors that makes up a developed country is the ability to feed themselves, which agricultural system of a country needs to be enhanced to achieve such standard. This research presents the design and development of a mechanized integrated farming system, uniting poultry, fishpond, and small scale corn plantation. The methodology of this research includes conceptual design and principle of operation of the intended design, application mathematical models and machine design principles to determine the required dimensions of the machine structural parts, conveyor components, and solar energy, then material selection and assembly of the entire mechanism. Afterward, the developed machine was used to rear chicken, fish and small scale corn plantation as well as traditional means and cost comparison of the two methods were conducted. From the result obtained, a chicken prototype farm with 125 cm x 35 cm x 40 cm dimension comfortable enough to house 5 chicken and fish, and a solar energy of 750 W which conveys chicken droppings on speed of 0.0679 m/s was established. Furthermore, the comparative cost analysis shows that integrated farming reduces poultry and catfish feed costs by 20% and 40%, respectively, while surpassing traditional farming in savings and profitability by over 200%. The mechanized integrated farming system presented a sustainable and resource-efficient model, maximizing waste utilization, reducing environmental impact, and promoting ecological balance. This research contributes to evolving agricultural practices, offering insights for diverse farming systems.

Page 10 of 10 | Total Record : 93

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