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All Journal Rekayasa Mesin Jurnal Teknologi dan Riset Terapan (JATRA) Journal of Engineering and Applied Technology Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Sinergi Polmed : Jurnal Ilmiah Teknik Mesin Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE) Jurnal Profesi Insinyur Indonesia
Widiastuti, Hanifah
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Project-Based Learning for the Design of Progressive Dies Supporting Tools Hakim, Rahman; Widiastuti, Hanifah; Wijayanti, Ita; Muvariz, Mufti Fathonah; Silaban, Andre Kevil
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/10.21776/ub.jrm.2021.012.01.13

Abstract

In the oil and gas industry, manufacturing processes covered a variety of fields including pipe fittings production. Generally, this process involves a press machine utilized as a shape forming using punch-dies sets as mold profiles. The common problem found with the dies is the dimension of dies is not ergonomics to be handled manually by operators. Additionally, the support of dies tends to experience buckling upon receiving a pressure load of 15 MPa. Hence, alternative and practical designs are required, which have low deflection values and high fatigue resistance rates. Additionally, the designs are expected to be safe and economical. In this study, two alternative designs of punch-dies support are proposed. Subsequently, the FEA simulation was carried out for pipe fittings of 8 inches with ASME B16.9 standard size for WF Beam A36 Steel to compare the two proposed designs. The results show that alternative design 2 has a lower deflection value of 0.181 mm, a higher Factor of Safety of 3.21, and a higher cycle time of 358569 cycles than alternative design 1. Nevertheless, alternative design 2 has a higher production cost of 220 USD compared to alternative design 2. Therefore, this study shows that alternative design 2 has better performance while alternative design 1 is more economical.
Pelatihan Penyusunan Dokumen Sertifikasi Halal Bagi UMKM di Kota Batam Kurniawan, Ded; Setiyanto, Adi Irawan; Darmawan, Arif; Ansori, Muslim; Restu, Fedia; Aprilia, Elin; Widiastuti, Hanifah; Zaenuddin, Muhammad; Wijayanti, Ita; Rasarandi, Farouki Dinda
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol 5 No 1 (2023): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v5i1.4558

Abstract

This service activity has two objectives. First, increasing the understanding of halal certification for MSMEs in Batam City. Second, helping SMEs in Batam City to prepare halal certification documents. This activity is carried out to overcome problems in MSMEs regarding the management of halal certification. This activity is expected to be useful for MSME Managers so that they understand the urgency of halal products, then MSME products are halal certified, and finally as a means of student learning. Based on the results of the assistance, many MSMEs want to take care of halal certification but are still confused about the preparation. This activity contains socialization, training, and mentoring. Assistance is provided to 6 (six) business units.
Pelatihan Pendamping Proses Produk Halal Ulfah, Nurul; Widiastuti, Hanifah; Thohari, Ahmad Hamim; Zaenuddin, Muhammad; Fajrin, Aulia; Purba, Adi Syahputra; Batubara, Ninda Hardina; Stefani, Windy; Hidayat, Imam; Wirawan, Adhitomo
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol 5 No 1 (2023): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v5i1.4865

Abstract

Halal products are products that are starting to be looked at by the market today. One of the goals of the Indonesian government, under BPJPH, in 2024 it is hoped that products, especially food and beverages in Indonesia, will already have halal certificates so that they can increase the attractiveness of pariwasata for Muslims around the world if they visit Indonesia. Based on the new legislation in 2014, namely law no. 33 of 2014 concerning Halal Product Guarantee, the halal certification process is carried out in synergy by various parties, one of which is the halal product guarantee organizing body (BPJPH). Halal product process assistance is a process of verifying and validating halal statements by business actors (self-declare). This activity serves to assist micro and small business actors in meeting product halal requirements. The purpose of this community service is to find out the level of understanding of prospective halal product process assistants in Batam City, service activities are carried out with 3 stages, namely surveys, socialization and training activities and the last stage is evaluation and reports. This activity is supported by BPJPH and Bank Indonesia as additional sponsors for activities to be carried out offline and online.
Rancang Bangun Kerangka Tanaman Hidroponik Politeknik Negeri Batam Pamungkas, Nurman; Widiastuti, Hanifah; Restu, Fedia; Leksonowati, Nur Fitria Pujo; Arifin, Nurul Laili; Muvariz, Mufti Fathonah; Ulfah, Nurul; Widodo, Widodo; Baharudin, Budi; Fajrin, Aulia; Fyona, Annisa; Kamsyah, Domi; Gemala, Mega; Rosbandrio, Wowo; Aryswan, Adhe; Siregar, James; Saputra, Hendra; Irawan, Benny Haddli; Saputra, Ihsan; Ariyanto, Nugroho Pratomo; Mutiarani, Mutiarani
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol 5 No 1 (2023): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v5i1.4866

Abstract

The hydroponic pilot project in the Batam State Polytechnic area was motivated by problems with economic conditions and declining health conditions during the Covid-19 pandemic. This project is expected to support the “growing your own food movement” in an effort to reduce unemployment, increase food security and a healthy lifestyle. The hydroponic method was chosen because it is very easy to do and does not require a large area of ​​land. In this community service activity, a hydroponic plant building framework will be made as a prototype of an efficient and efficient hydroponic building so that it can be used by the wider community. This activity is also useful for applying design knowledge as one of the PbL activities carried out by CAD, CNC, CAM, and Fabrication Engineering courses in the Mechanical Engineering Department, so that it can become an arena for higher education participation to support people's lives. The method of implementing this community service activity is to make observations to find a suitable area to build a hydroponic plant house, then the results of the observations are poured in the form of a design by utilizing software so that the materials needed and the shape of the framework that is built can be known. The last activity is making a hydroponic plant place. This activity is planned to be carried out from April to November 2021. Based on the results of the evaluation of the service program questionnaire for product distribution, it is known that the majority of respondents are satisfied with the products produced.
Studi Kelayakan Pembangunan Pembangkit Listrik Tenaga Surya Terapung pada Waduk Sumber Air Minum di Batam Cinantya, Prajwalita; Widiastuti, Hanifah; Lumombo, Liony
Jurnal Profesi Insinyur Indonesia Vol 2, No 2 (2024): JPII
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpii.2024.21723

Abstract

Kebutuhan akan pasokan listrik di Kota Batam sebagai pusat industri kian meningkat, hal ini perlu diimbangi dengan ketersediaan listrik agar tidak terjadi defisit dalam neraca listrik. Salah satu suplai ketersediaan pembangkit tersebut adalah melalui energi baru terbarukan yaitu Pembangkit Listrik Tenaga Surya (PLTS). PLTS membutuhkan lahan yang cukup luas, sedangkan Kota Batam memiliki keterbatasan. Penempatan PLTS pada permukaan waduk sebagai sumber air minum di Batam dapat dijadikan alternatif yakni pada waduk Duriangkang dan waduk Tembesi. Studi ini untuk mengetahui kelayakan PLTS di waduk Duriangkang dan waduk Tembesi melalui desain PLTS terapung, dampak lingkungan dan kelayakan ekonomi. Kata kunci: Energi Baru Terbarukan, Pembangkit Listrik Tenaga Surya
Experimental study: coolant viscosity’s impact on Inconel 600’s surface roughness measured using a refractometer Pujo Leksonowati, Nur Fitria; Pamungkas, Nurman; Manurung, Meilani Mandalena; Batubara, Ninda Hardina; Widiastuti, Hanifah
Journal of Engineering and Applied Technology Vol 5, No 1 (2024): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v5i1.71254

Abstract

This paper presents an experimental study on the impact of coolant viscosity on the surface roughness of Inconel 600 material processed using a lathe. This research employs sequential experimental methods, encompassing a coolant viscosity test, specimen machining with a lathe, and surface roughness test. The standard for the roughness grade number is defined by ISO 1302. The study effectively demonstrates the use of a refractometer as a reliable and practical alternative for determining coolant quality in % Brix units, which strongly correlates with coolant viscosity. The research findings reveal that an increase in coolant viscosity results in a smoother surface roughness of the workpiece, while a decrease leads to an increase in surface roughness. Specifically, the average viscosity of 8%, 10%, and 13% Brix coolant results in an average surface roughness of Ra 11.83 μm, Ra 10.09 μm, and Ra 7.23 μm, respectively. The average roughness grade number based on this study is N9 - N10. However, the study also identifies the need for further mathematical calculations to establish a link between coolant concentration, % Brix, and coolant viscosity. This opens up an intriguing avenue for future research and holds the potential to significantly enhance our understanding of the relationship between these variables.
Analisis Crack Pada Robot Exoskeleton Lower LIMB Pamungkas, Daniel Sutopo; Fadhil Al Fadjri, Muhammad; Widiastuti, Hanifah
Journal of Applied Mechanical Engineering and Renewable Energy Vol 5 No 1: February 2025
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jamere.v5i1.1022

Abstract

Failure due to material fatigue can be potentially fatal as it may lead to fractures without any initial detectable deformation. Factors such as high maximum load and large stress cycles accelerate the material fatigue process. In the design of a lower limb exoskeleton robot, the strength and safety of the robot are primary focuses, particularly in the Link Joint mechanism. The comfort and safety of the structure are determined by the geometry and type of material used. Analysis using Fracture Mechanics is employed to evaluate cracks in the Link Joint mechanical structure, with the calculation of the Stress Intensity Factor (SIF) value as an indicator of the stress intensity on the crack due to load. This research aims to identify critical stress and estimate the service life of the mechanism through testing using Finite Element Method-based software, specifically Solidworks 2020.
Perancangan dan Analisis Performa 3D Printer Cartesian Setyoadi, Yuris; Hermana, Rifki; Hakim, Rahman; Riyadi, Achmad Didi; Widiastuti, Hanifah
Jurnal Teknologi dan Riset Terapan (JATRA) Vol. 5 No. 2 (2023): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2023
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v5i2.5057

Abstract

3D printer technology offers the capability to print 3D objects with nearly perfect accuracy, making it a crucial tool in the industry for rapid prototyping. This study employs an experimental approach to design a Cartesian 3D Printer with a printing area of X-axis 150 mm, Y-axis 150 mm, and Z-axis 200 mm, and subsequently compares the printing accuracy with the Anycubic Mega Zero 3D printer, which has a printing area of X-axis 220 mm, Y-axis 220 mm, and Z-axis 250 mm. Both machines underwent testing by printing block specimens 10 times each. The printing results revealed several specimens that did not meet the specified tolerance limits. In the Cartesian 3D Printer, three dimensional measurements exceeded tolerance levels in specimens 7 and 8, specifically in length, width, and height dimensions. Meanwhile, in the Anycubic Mega Zero 3D Printer, five measurements exceeded tolerance limits in specimens 6, 8, and 9, with one width dimension and two length and height dimensions. From these findings, it can be concluded that the Cartesian 3D Printer demonstrates higher accuracy compared to the Anycubic Mega Zero 3D Printer.
PEMODELAN DAN ANALISIS EYEBOLT TERHADAP BEBAN DAN SUDUT ANGKAT MENGGUNAKAN FINITE ELEMENT ANALYSIS Fathurrahman; Widiastuti, Hanifah; Albana, Muhammad Hasan
SINERGI POLMED: Jurnal Ilmiah Teknik Mesin Vol. 6 No. 2 (2025): Edisi Agustus
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/sinergipolmed.v6i2.2556

Abstract

Eyebolt berperan sebagai bagian dari komponen pengangkatan peralatan yang dibutuhkan dalam proses pemindahan peralatan berat. Meskipun demikian, eyebolt memiliki potensi kegagalan yang tinggi akibat dari ketidaksesuaian standar sudut pengangkatan yang akhirnya berakibat pada kerusakan eyebolt. Penelitian ini akan memfokuskan kepada analisis pembebanan terhadap eyebolt dari variasi sudut pengangkatan yang diberlakukan. Sehingga penelitian ini diharapkan dapat digunakan sebagai media pembelajaran untuk pengaplikasian Eyebolt dalam aktivitas pengangkatan komponen peralatan berat di kemudian hari. Simulasi Finite Element Analysis (FEA) merupakan metode numerik komputasi untuk mengetahui perilaku suatu material atau struktur ketika diberi pembebanan. Dalam penelitian ini akan mensimulasikan tiga skenario pembebanan dengan variasi sudut berbeda, yaitu 90°, 75°, 45°, dan 30° terhadap Eyebolt Australian Standard 2371:2018 for eyebolt grade 4. Parameter yang diamati dalam penelitian kali ini berfokus pada perbandingan dari faktor deformasi material, factor of safety, tegangan dan regangan yang mempengaruhi aspek kesuksesan pengangkatan.
Co-Authors Adhe Aryswan Adi Irawan Setiyanto Albana, Muhammad Hasan Aprilia, Elin Arif Darmawan Ariyanto, Nugroho Pratomo Baharudin, Budi Batubara, Ninda Hardina Cinantya, Prajwalita Daniel Sutopo Pamungkas, Daniel Sutopo Fadhil Al Fadjri, Muhammad Fajrin, Aulia Fathurrahman Fyona, Annisa Gemala, Mega Hendra Saputra Hermana, Rifki Irawan, Benny Haddli Kamsyah, Domi Kurniawan, Ded Leksonowati, Nur Fitria Pujo Lumombo, Liony Manurung, Meilani Mandalena Muhammad Zaenuddin, Muhammad Muslim Ansori Muvariz, Mufti Fathonah Nurul Laili Arifin, Nurul Laili Pamungkas, Nurman Pujo Leksonowati, Nur Fitria Purba, Adi Syahputra Rahman Hakim Rasarandi, Farouki Dinda Restu, Fedia Riyadi, Achmad Didi Rosbandrio, Wowo Saputra, Ihsan Silaban, Andre Kevil Siregar, James Stefani, Windy Sugeng, Santoso Thohari, Ahmad Hamim Ulfah, Nurul Widodo Widodo Wijayanti, Ita Winnugroho Wiratman, Manfaluthy Hakim, Tiara Aninditha, Aru W. Sudoyo, Joedo Prihartono Wirawan, Adhitomo Yuris Setyoadi