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All Journal V-MAC (Virtual of Mechanical Engineering Article) Journal of Industial Engineering and Technology Jurnal Manajemen dan Teknologi Rekayasa
Silvi Istiqomah
Universitas Telkom
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Published : 3 Documents Claim Missing Document
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Kekuatan Tarik dan Biodegradabilitas Biokomposit PVA berpengisi Serbuk Kulit Kacang Tanah sebagai Separator Baterai Revvan Rifada Pradiza; Juniar Maulana Soliwi Putra; Silvi Istiqomah; Dwi Heru Siswantoro; Alfi Hasan; Mochamad Asrofi; Yayang Permadi; Deny Tomy Andrianto; Ananda Yuman Hardiansyah
Virtual of Mechanical Engineering Article Vol 11 No 1 (2026): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v11i1.7628

Abstract

Penelitian ini bertujuan untuk mengkaji pengaruh penambahan serbuk kulit kacang tanah terhadap sifat mekanik dan biodegradabilitas biokomposit berbasis Polyvinyl Alcohol (PVA) yang memiliki potensi aplikasi sebagai separator baterai. Biokomposit dibuat dengan penambahan pengisi serbuk kulit kacang tanah sebesar 0%, 2%, 4%, dan 6%, yang dicampurkan dengan matriks PVA menggunakan metode solution casting. Pengujian kekuatan tarik dilakukan sesuai dengan standar ASTM D882, sementara pengujian biodegradabilitas menggunakan ASTM D6003-96. Hasil penelitian menunjukkan bahwa penambahan serbuk kulit kacang tanah meningkatkan kekuatan tarik biokomposit seiring bertambahnya fraksi pengisi. Biokomposit dengan 6% serbuk kulit kacang tanah menghasilkan kekuatan tarik maksimum sebesar 5,67 MPa. Hasil ini dibuktikan dengan hasil penyerapan kelembaban pada penambahan 6% serbuk kulit kacang tanah yang memiliki hasil terendah, sehingga gugus O-H yang terbebas berkurang. Selain itu, hasil uji biodegradasi menunjukkan bahwa semakin tinggi serbuk kulit kacang tanah, semakin besar pula laju degradasi biokomposit, dengan penurunan berat tertinggi sebesar 62,70% pada sampel dengan 6% pengisi setelah 15 hari penguburan. Temuan ini menunjukkan bahwa serbuk kulit kacang tanah berpotensi meningkatkan sifat mekanik dan biodegradabilitas biokomposit, menjadikannya alternatif ramah lingkungan untuk bahan separator baterai
Improving Stock Availability Accuracy Using Min-Max Method for Material Requirement Planning (MRP) Item Bolt Set at PT Lion Metal Works Silvi Istiqomah; Fatnika Fauziyah; Ade Fathur Noviandre Majid; Kamelia Salsabilla; Perdana Suteja
Journal of Industrial Engineering and Technology Vol. 6 No. 2 (2026): 30 Juni 2026
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/jointech.v6i2.17042

Abstract

PT Lion Metal Works faces frequent raw material shortages and surpluses, disrupting production and emphasizing the need for better inventory management. This study aims to improve stock accuracy for bolt set items using the Min-Max method. The research involved analyzing historical data and forecasting demand to establish reorder points and optimal inventory levels. Data collection techniques included historical data analysis and statistical demand forecasting. The implementation of the Min-Max method increased stock accuracy from 87% to 90%. Prior to this method, inventory management experienced frequent discrepancies and inefficiencies. Post-implementation, these issues were significantly reduced, resulting in more stable inventory levels. Key factors in this improvement included precise demand forecasting, efficient procurement lead time, and effective safety stock management. The study confirms the Min-Max method's effectiveness in optimizing inventory management, cutting costs, and ensuring smoother production. Benefits of the study include enhanced stock accuracy and minimized production disruptions. Recommendations for further improvement involve developing advanced information systems, regular employee training, and better supplier relationships.
Dashboard for Electric Vehicles Using Design Thinking Methods with Human Machine Interface (HMI) Integration in the Battery Management System (BMS) Perdana Suteja Putra; Siti Yuki Lestari; Silvi Istiqomah
JUMANTARA: Jurnal Manajemen dan Teknologi Rekayasa Vol 5, No 2 (2026): Juli
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/jumantara.v5i2.3537

Abstract

Transportation technology continues to evolve to support environmentally friendly energy use, with battery-powered electric vehicles (EVs) becoming one of the most widely adopted innovations. The Battery Management System (BMS) plays a crucial role in monitoring battery conditions. The design of an informative and user-centered dashboard becomes essential. This study presents the development of an informative EV dashboard by integrating HMI with BMS using the Design Thinking methodology. User needs were identified through Focus Group Discussion (FGD) and mapped using an empathy map, revealing essential information requirements such as State of Charge (SoC), State of Health (SoH), estimated range, navigation, and a simple, intuitive visual display. The ideation stage with the innovation canvas produced relevant feature concepts. The prototype was evaluated using the System Usability Scale (SUS) involving 20 respondents, resulting in an average score of 76.25, categorized as “Good” and acceptable. The findings indicate that the dashboard is easy to use and helps drivers better understand vehicle conditions. Overall, this research demonstrates that Design Thinking is effective in developing user-friendly dashboards that integrate HMI with BMS, thereby enhancing EV usability and supporting the acceleration of EV adoption in Indonesia.
Co-Authors Ade Fathur Noviandre Majid Alfi Hasan Ananda Yuman Hardiansyah Deny Tomy Andrianto Fatnika Fauziyah Juniar Maulana Soliwi Putra Kamelia Salsabilla Mochamad Asrofi Perdana Suteja Perdana Suteja Putra Permadi, Yayang Pradiza, Revvan Rifada Siswantoro, Dwi Heru Siti Yuki Lestari