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All Journal AUSTENIT SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Dinamisia: Jurnal Pengabdian Kepada Masyarakat MACHINERY: Jurnal Teknologi Terapan International Journal of Applied Business and International Management Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)
Zamheri, Ahmad
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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SOSIALISASI PEMBUATAN BONEKA AESAN GEDE 3D’ ART DALAM RANGKA PKM-K KEPADA MAHASISWA POLITEKNIK NEGERI SRIWIJAYA Firmansyah, Wahyudi; Saputra, Reno; Safitri, Rissa Aulia; Rizal, M. Syahrul; Pratiwi, Indah; Zamheri, Ahmad; Effendy, Sahrul; Erlinawati, Erlinawati
Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS Vol. 2 No. 4 (2024): Agustus
Publisher : CV. Alina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59407/jpki2.v2i4.930

Abstract

Kegiatan ini bertujuan untuk mengolah limbah dari sisa penjahitan kain songket, yang dikenal sebagai kain perca, menjadi produk barang jadi yang inovatif. Selain itu, kegiatan ini bertujuan untuk memperkenalkan budaya khas Sumatera Selatan dengan jangkauan yang lebih luas melalui pembuatan souvenir berupa Boneka Aesan Gede dari limbah kain perca songket. Metode Pelaksanaan kegiatan dilakukan dengan mengadakan workshop di Graha Politeknik Negeri Sriwijaya, di mana sekitar 20 peserta terlibat. Metode yang digunakan mencakup proses pelatihan praktis dalam pembuatan Boneka Aesan Gede, mulai dari pengumpulan dan pemilihan kain perca, teknik pembuatan boneka, hingga finishing produk. Kegiatan ini juga melibatkan penjelasan mengenai nilai budaya kain songket dan cara-cara mengolah limbah menjadi produk yang bernilai. Hasil dari kegiatan ini menunjukkan bahwa peserta berhasil memproduksi Boneka Aesan Gede dari limbah kain perca songket dengan kualitas yang baik. Selain itu, kegiatan ini juga berhasil meningkatkan pemahaman peserta mengenai pengolahan limbah kain songket dan memperkenalkan mereka pada teknik pembuatan souvenir yang inovatif. Kegiatan ini berfungsi sebagai sarana efektif untuk memperkenalkan dan melestarikan budaya Sumatera Selatan di kalangan mahasiswa dan masyarakat luas. Simpulan, Kegiatan pengabdian ini berhasil mengolah limbah kain perca songket menjadi souvenir yang menarik dan bernilai, serta memperkenalkan budaya khas Sumatera Selatan kepada peserta. Dengan adanya workshop ini, mahasiswa/i Politeknik Negeri Sriwijaya memperoleh pengetahuan dan keterampilan baru dalam pengolahan limbah tekstil dan pelestarian budaya. Kegiatan ini juga menunjukkan potensi penggunaan limbah kain perca untuk menghasilkan produk yang dapat mempromosikan budaya lokal dan memberikan manfaat ekonomi tambahan. Kata Kunci : Limbah Perca Kain Songket, Boneka Aesan Gede, Souvenir, Budaya Khas Sumatera Selatan
ANALISA SIMULASI PADA KEKUATAN MATERIAL MINI BOILER MENGGUNAKAN METODE FINITE ELEMENT ANALYSIS (FEA) Setiawan, Eko; Zamheri, Ahmad; Mardiana, Mardiana
MACHINERY Jurnal Teknologi Terapan Vol. 6 No. 1 (2025): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.15234205

Abstract

The advancement of technology today supports the development of production tools in the tofu industry. One such technology in the field of energy conversion has sparked many creative ideas for its application in the industrial world. One of the energy conversion machines is the mini boiler or steam boiler. The mini boiler is capable of converting water into steam, which can be utilized for its pressure and heat. Some tofu industries have already adopted steam-generating production equipment. These conventional steam machines are made of drums that function as steam collectors. In the tofu production process, the mini boiler plays a very vital role. The mini boiler produces high-pressure steam. Therefore, it is necessary to simulate and conduct a structural analysis to improve the efficiency of the mini boiler using the Finite Element Analysis (FEA) method. The material used in this study is stainless steel. This study aims to perform a simulation analysis on the mini boiler in an effort to improve design efficiency, using a method that models and analyzes phenomena related to the system through a numerical approach. The research methodology employed is Finite Element Analysis (FEA) with the assistance of ANSYS 2023 R1 software
OPTIMIZATION OF PROCESS PARAMETERS IN 3D PRINTING FDM BY USING THE TAGUCHI AND GREY RELATIONAL ANALYSIS METHODS Arifin, Fatahul; Zamheri, Ahmad; Herlambang, Yusuf Dewantoro; Syahputra, Angga Panjy; Apriansyah, Icvan; Franando, Franando
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 15 No. 1 (2021): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.15.1.1-10

Abstract

The 3D printing technology is one of the technologies that is developing currently. This machine can make products easily, quickly, and precisely. 3D printing is used to print models, prototypes/modeling, teaching aids for education, health support devices, product design, and many more in 3D shapes. Fused Deposition Modeling (FDM) is the most popular among others 3D printing techniques. In simple concept, it does not need maintenance regarding solvents or glue. The spare parts can be found easily and cheaply.  In this research, we create objects by using Autodesk inventor that is called human denture. Then, it converted to G-Code using Simplyfy3D software version 4.1.2. The G-Code data is used in the 3D printer for making the product. We select parameters to print the product. In this study, we find the optimal parameters of the effect of shrinkage and hardness of the product. The 3 parameters are in this study namely; layer height, print speed, temperature print. The material of human denture is filament PLA +. The Taguchi method and Grey analysis are used to analyze the data result. The results of the analysis for optimal parameters are at Layer Height 0.15 mm, Print Speed 25 mm/s, and Print Temperature 210⁰C.
STUDI PEMBUATAN BAGIAN ALAT REHABILITASI PENDERITA STROKE DENGAN PENDEKATAN METODE TAGUCHI Franando, Franando; Zamheri, Ahmad; Arifin, Fatahul
MACHINERY Jurnal Teknologi Terapan Vol. 1 No. 1 (2020): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (536.957 KB) | DOI: 10.5281/zenodo.4540849

Abstract

3D Printer is a solution to fulfill product demand that is custom design and not necessarily mass production. However, as long as the printing process produces a product that is not the same as the design size and has a fragile structure, there is a small deviation of dimensional accuracy and hardness value. This research focuses on dimensional accuracy and hardness of 3D Printer prints by using the design of one of the components of stroke rehabilitation tools, It aims to find a printing parameter component of a stroke rehabilitation tool that can have minimum dimensional accuracy and has a maximum hardness value. This study used Color Change Filament material for 3D printing with Taguchi data processing method and succeeded in reducing dimensional accuracy deviation with Layer Height percentage (52.225%), Print Speed of (15.432%) and Print Temperature amounting to (14.060%). The optimal process Parameter for obtaining the minimum dimensional accuracy is the 0.10 mm Layer Height of Print Speed 40 mm/s and the Print Temperature of 195 oC. Maximum hardness value with a Layer Height percentage of (26.015%), Print Speed (60.511%) and Print Temperature amounting to (8.213%). The optimal process Parameter for obtaining the maximum hardness value is the 0.10 mm Layer Height of the Print Speed of 20 mm/s and the Print Temperature of 205 oC.
PENINGKATAN AKURASI DIMENSI DAN TINGKAT KEKERASAN PADA FILLAMENT ESTEEL DENGAN PENDEKATAN METODE TAGUCHI Apriansyah, Icvan; Zamheri, Ahmad; Arifin, Fatahul
MACHINERY Jurnal Teknologi Terapan Vol. 2 No. 1 (2021): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (209.621 KB) | DOI: 10.5281/zenodo.4748423

Abstract

3D Printing is a new breakthrough in the world of technology. This breakthrough is very popular in all parts of the world, especially among academia and industry. The emergence of 3D Printing technology is very influential in several industrial fields, especially from an economic perspective. Rapid prototyping of mechanical components with techniques and low production volumes to quickly produce prototypes. The purpose of this study was to determine the dimensional accuracy of the 3D printer process using different parameters. In the testing process using the Digimatic Vernier Caliper Mitutoyo Absolute test tool, which uses an accuracy of 0.02 mm and the ALBERT GNHEM HORGEN hardness test tool and the Mitutoyo PJ-A3000 Projector Profile. The test data were analyzed using the Taguchi method.
ANALISA BAHAN POROS DENGAN MENGGUNAKAN UJI TARIK TERHADAP PERFORMANCE APRON FEEDER YANG DIGUNAKAN PADA SHAFT OUTPUT GEARBOX DI UNIT DERMAGA PT BUKIT ASAM Tbk.KERTAPATI Ardi, Ardiansyah; Yunus, Muhhammad; Zamheri, Ahmad
MACHINERY Jurnal Teknologi Terapan Vol. 2 No. 2 (2021): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (434.486 KB) | DOI: 10.5281/zenodo.5812368

Abstract

Apron feeder adalah sebuah alat yang mempunyai fungsi yaitu  memindahkan material batu bara dari pembuangan pertama kereta api ke belt conveyor. Apron feeder memiliki sebuah gearbox yang berfungsi memperlambat putaran dari motor listrik  ke turbo coupling melalui gearbox, lalu putaran diteruskan ke gear pinion(shaft input) dan gear pinion meneruskan putaran dari ke geardrive(shaft out put), danshaft out put ini memutar apron feeder untuk mengantar batu bara dari pembuangan pertama kereta api ke beltconveyor. Shaft ouput pada gearbox selalu mengalami kegagalan structure material sehingga perlu dilakukan penelitian untuk mengetahui perbandingan bahan yang tepat sehinggamengetahuibagaimana cara mengatasikerusakan yang sering terjadi pada shaft output. Penelitian ini menggunakan metode membandingkan bahan pada shaft melaluipengujian tarik dan pengujian komposisi.  Hasil dari pengujian akan dianalisis sehingga bisa digunakan untuk menentukan bahan shaft yang tepat agar dapat meminimalisir kegagalan fungsi dari shaft output yang berupa crack dan memaksimalkan performance dari shaft ouput apron feeder.
PENERAPAN METODE DESIGN FOR MANUFACTURING PADA RANCANG BANGUN CNC MILLING 3 SUMBU yahya, abdurrahman; malik, irawan; zamheri, ahmad
MACHINERY Jurnal Teknologi Terapan Vol. 4 No. 2 (2023): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.8049149

Abstract

The use of 3 Axis CNC Milling machines lately is needed by many business actors in the creative industry. However, entrepreneurs sometimes face problems with the cost of CNC Milling machines which are quite expensive. This research focuses on developing the design of 3 Axis CNC Milling machines which are commonly circulating in the market, namely 3 Axis CNC Milling 2418. Researchers develop designs using the Design For Manufacturing method in order to minimize costs but still with good quality. The CAD-CAE program, Solidworks 2021, was used to design and analyze Von Misses stresses and safety factors. The results of the implementation of the DFM method resulted in a 3 Axis CNC Milling design with a minimum cost of 11.9% and a Factor of Safety value of more than 1.
ANALISIS QUALITY FUNCTION DEPLOYMENT (QFD) PADA RANCANG BANGUN MESIN MILLING 3 SUMBU Rizal, Syamsul; Rifki, Muhammad; Malik, Irawan; Zamheri, Ahmad
MACHINERY Jurnal Teknologi Terapan Vol. 4 No. 2 (2023): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.8084960

Abstract

Machines are a special concern in the production process of several parties who use CNC machines, including industrial companies, educational institutions such as universities, polytechnics and vocational high schools. Machines used in industry and agencies with various brands, the price reaches hundreds of millions per unit and even billions of rupiah, other commercial CNC Mini Milling is still relatively expensive, and also has a heavy weight. The purpose of this study was to determine the customer's desire on the CNC Mini Milling machine, by conducting a questionnaire to increase customer satisfaction. Therefore, in this study, an analysis of customer satisfaction was carried out using the Quality Function Deployment (QFD) method in order to design a design according to the customer's wishes. The results of the study can be used as material to make improvements to material specifications, material capabilities and appropriate dimensions. The results of this study have found things that must be prioritized based on the House of Quality. Some of the priorities include having to repair the frame at a low price, light and strong, can increase ST 37, easy to use and dimensions that are not too big.
The Mediation of Tourist Engagement on The Effect of Destination Quality on Tourist Loyalty Putri, Dhea Radika; Zamheri, Ahmad; Ridho, Sari Lestari Zainal; Paisal, Paisal; Africano, Fernando
International Journal of Applied Business and International Management Vol 7, No 1 (2022): April 2022
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/ijabim.v7i1.1437

Abstract

This study aims to examine and analyze: The effect of destination quality on tourist engagement, the effect of destination quality on tourist loyalty, the effect of tourist engagement on tourist loyalty and the effect of destination quality on tourist loyalty mediated with tourist engagement. The data analysis method uses a structural equation model. The research sample is tourists who have visited natural tourist destinations in South Sumatra totaling 320 respondents.  The results of this study prove that the destination quality affects tourist engagement.  Destination quality affects tourist loyalty.  Tourist engagement affect tourist loyalty.  Tourist engagement mediates the effect of destination quality on tourist loyalty. The implication of this finding explains that tourist engagement driven by destination quality will be able to increase tourist loyalty. 
Geothermal Power Generation: Harnessing Electrical Energy Through The Organic Rankine Cycle (ORC) System Zikri, Ahmad; Sumarna, Herlin; Hidayati, Baiti; Anwar, Zainuri; Putri, Fenoria; Zamheri, Ahmad; Negash, Semir M; Nasution, Gaizka Ghifari
International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS) Vol. 2 No. 1 (2024): IJMEAS - January
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijmeas.v2i1.235

Abstract

The research employs a thermodynamic simulation method using an Engineering Equation Solver (EES), relying on theoretical calculations. This method is integrated into a geothermal power plant, precisely focusing on geothermal source temperatures of approximately 95ºC. The investigation centers on the heat transfer process within a high-temperature heat transfer fluid from geothermal sources, conveying stored heat to the Organic Rankine Cycle (ORC) evaporator. Three specific working fluids, R134a, R11, and R22, examine working fluid selection for ORC at 95ºC. The results highlight the R11 organic fluid as an optimal compromise, excelling in two crucial criteria. Firstly, R11 exhibits the highest net mechanical power, = 34.81 kW compared to alternative fluids. Secondly, it boasts the best energetic efficiency of the cycle, registering  = 16.01%, outperforming both R134a ( = 13.17%) and R22 ( = 12.64%). In summary, this study conducts a focused analysis of the energy aspects of an Organic Rankine Cycle (ORC) for electricity production using geothermal sources and organic fluids. Operating at a geothermal source temperature of 95ºC with a water flow rate of 80 lt/s and environmental conditions at 20ºC, the parametric study emphasizes the superiority of the R11 organic fluid. R11 emerges as the optimal choice, demonstrating the highest net mechanical power and superior energetic efficiency compared to alternative fluids, thereby contributing valuable insights to advancing sustainable and efficient energy technologies.
Co-Authors Africano, Fernando Agung Mataram Andika, Ekki Anwar, Zainuri Apriansyah, Icvan Ardi, Ardiansyah Arnoldi, Dwi Burhanuddin, Alief Claudya Nurcahaya Effendy, Sahrul Eko Setiawan Endra, Dodi Erlinawati Erlinawati, Erlinawati Fatahul Arifin, Fatahul Firmansyah, Wahyudi Franando, Franando HIDAYATI, BAITI Inayatullah, Ahlam Indah Pratiwi Irawan Malik Mardiana Mardiana Mochammad Yunus, Mochammad Muhammad Rifki Muhammad Yerizam Muharramah, Ulfah Mulyadi Mulyadi Nasution, Gaizka Ghifari Negash, Semir M PAISAL PAISAL Puspa, Dilia Putri, Dhea Radika Putri, Fenoria Qomarul Hadi Ramadoni, Rizki Rarassari, Madyasta Anggana Ridho, Sari Lestari Zainal Rizal, M. Syahrul Safitri, Rissa Aulia Sailon, Sailon Samsul Rizal Saputra, Reno Seprianto, Dicky Sumarna, Herlin Syahputra, Angga Panjy Syamsul Rizal Tamilio, Hopay Tompunu*, Alan Novi Wardhana, Agum Try Wilza, Romi YAHYA, ABDURRAHMAN Yunus, Muhhammad Yusuf Dewantoro Herlambang Yusuf, Moch Zainuddin, Zainuddin Zakaria Zakaria Zikri, Ahmad