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All Journal Buletin Ilmiah Sarjana Teknik Elektro Jurnal Locus Penelitian dan Pengabdian
Nugraha, Bagus Putra
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Aerospace Engineering Automotive Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Mathematics

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Pengaruh Rembesan terhadap Stabilitas Keamanan Bendungan Leuwikeris Berdasarkan Parameter Material Timbunan Hidayat, Muhammad Andhi; Nugraha, Bagus Putra
Jurnal Locus Penelitian dan Pengabdian Vol. 4 No. 6 (2025): JURNAL LOCUS: Penelitian & Pengabdian
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/locus.v4i6.4456

Abstract

The background of this research is the importance of ensuring the stability of the Leuwikeris Dam, which plays a role in irrigation, raw water supply, and flood control in the Ciamis region, West Java. Fluctuations in reservoir water levels and seepage can affect the stability of dam slopes, so an in-depth analysis of embankment material parameters and earthquake loading conditions is required. The objective of this study is to evaluate the dam's safety factor based on various scenarios, including construction conditions, reservoir filling, and seismic loading (OBE and MDE). The research method involves slope stability modeling using Geo-Studio Slope/W 2023.1.0 software with the limit equilibrium method and dynamic analysis using the Makdisi-Seed method for deformation prediction. The results show that the safety factor meets the criteria under construction and reservoir filling conditions but does not meet the requirements under MDE earthquake loading. However, deformation analysis demonstrated that the maximum displacement (110 cm) remains below the safe limit (368.5 cm). The implications of this study are the need for continuous monitoring and mitigation design to anticipate the risk of major earthquakes, as well as recommendations for optimal fill materials to enhance dam stability. 
Design and Application of a Cyber Physical Based Data Logger System for Charging Stations Rahutomo, Faisal; Nugraha, Bagus Putra; Mekonnen, Atinkut Molla; Ariyo, Bashiru Olalekan
Buletin Ilmiah Sarjana Teknik Elektro Vol. 7 No. 3 (2025): September
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/biste.v7i3.13266

Abstract

The rapid advancement of technology, particularly in transportation, has led to a growing public interest in electric vehicles. Government support, exemplified by Presidential Regulation No. 55 of 2019, further encourages this shift. With more electric vehicles on the road, the need for adequate charging infrastructure is critical. This research aims to design, test, and implement a charging device that records electric vehicle usage, displays data on an LCD, and allows monitoring through a website. Using the research and development (R&D) method, a highly effective design was developed. The data recording system employs the PZEM-004T sensor and ESP32 microcontroller to send data to a database. Validation tests showed high accuracy and precision, with current accuracy at 98.79% and precision at 99.24%, and voltage accuracy at 99.59% and precision at 99.87%. The device was installed in the basement of UPT TIK UNS and tested with three electric vehicles, each with different power requirements. The average power growth every ten minutes was 0.063 kWh for the first vehicle, 0.164 kWh for the second, and 0.139 kWh for the third. These results demonstrate that the device functions well, the design is successful, and it provides consistent, accurate, and precise energy growth measurements.
Co-Authors Ariyo, Bashiru Olalekan Faisal Rahutomo Hidayat, Muhammad Andhi Mekonnen, Atinkut Molla