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All Journal Jurnal Pendidikan Vokasi Majalah Ilmiah MOMENTUM Jurnal Rekayasa Mesin Journal of Mechanical Engineering Learning Indonesian Journal of Chemistry SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Pendidikan Vokasi Otomotif Parta: Jurnal Pengabdian Kepada Masyarakat Jurnal Inovasi Mesin Journal of Mechanical Engineering Learning
Setiadi, Rizki
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Analisis Tegangan von Mises dan Safety Factor pada Chassis Kendaraan Listrik Tipe In-Wheel Budiman, Febrian Arif; Septiyanto, Angga; Sudiyono, Sudiyono; Musyono, Ari Dwi Nur Indriawan; Setiadi, Rizki
Jurnal Rekayasa Mesin Vol 16, No 1 (2021): Volume 16, Nomor 1, April 2021
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v16i1.1997

Abstract

Transportasi merupakan kebutuhan setiap manusia untuk menunjang pekerjaannya. Saat ini kendaraan ramah lingkungan yang banyak dikembangkan adalah kendaraan listrik. Kendaraan listrik dianggap bebas emisi dan dapat mempengaruhi kondisi lingkungan. Salah satu komponen penting pada kendaraan listrik adalah chassis. Untuk itu, diperlukan desain chassis yang tepat agar keamanan dan kenyamanan kendaraan terjamin. Dalam perkembangan kendaraan listrik, model penggerak motor listrik langsung ditempatkan pada roda atau yang sering disebut dengan in-wheel. Tujuan penelitian ini adalah (1) Mendesain chassis pada kendaraan listrik tipe in-wheel, (2) Menganalisis tegangan von mises dari desain chassis kendaraan listrik tipe in-wheel, (3) Menganalisis safety factor pada kendaraan listrik ramah lingkungan tipe in-wheel. Metode penelitian menggunakan simulasi. Simulasi dilakukan dengan menggunakan software Autodesk Inventor. Material yang digunakan yaitu baja AISI 1018 HR. Hasil Penelitian menunjukkan telah dihasilkan desain chassis untuk kendaraan listrik 6 orang penumpang. Tegangan von mises pada chassis minimum sebesar 0 dan maksimal 20,33 MPa, displacement minimum sebesar 0 dan maksimum sebesar 0,22, serta nilai safety factor minimum sebesar 12,3 dan maksimum sebesar 15. Berdasarkan hasil penelitian desain chassis yang telah dibuat dikategorikan aman secara teknis.
Effect of Firring Heating Rate on the Density, Porosity, Vickers Hardness and Microstructure of the Crucible Specimens Rusiyanto, R.; Meiartha, REGA; Fitriyana, Deni Fajar; Sudiyono, S.; setiadi, rizki; Siregar, Januar Parlaungan; Ansori, CHUSNI
JURNAL ILMIAH MOMENTUM Vol 20, No 1 (2024)
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v20i1.10306

Abstract

Failure in the results of making the crucible is cracking and even deformation. Cracks that occur can cause fluid leakage when melting so that it disrupts the casting process. The quality of the crucible can be influenced by factors including the selection of constituent materials, particle size, the amount of pressure, and the length of the firring process of heat treatment and cooling in the furnace. This study aims to determine the effect of heating rate on crucible made from clay and kaolin and molasses as a binder. With the treatment of different heating rates in the firring process, namely 3 ℃ / min, 4 ℃ / min, 5 ℃ / min, 6 ℃ / min, and 7 ℃ / min.  The composition of the materials used is 40% clay, 40% kaolin, and 5% molasses and 15% water as the total mass. The process of making specimens begins with crushing clay, sieving clay 100 mesh. Mixing process using twin screw extruder machine repeatedly for 45 minutes. Molded cylindrical size 20 x 20 mm, free air drying for 8 days, firring process at 1000 ℃ holding time 1 hour. The results showed that the difference in heating rate did not affect the change in chemical elements but the best heating rate was at 3℃/min showing a denser morphology, density value of 1.62 g/cm3, porosity value of 23%, and Vickers hardness value of 20.43 HVN.
The Improvement of Modified Rice Straw Fiber/Polyvinyl Alcohol Thermoplastic Polymer Composite Using Cold Plasma Technology Harianingsih, Harianingsih; Indriawan, Ari Nur Dwi; Setiadi, Rizki; Pangestu, Indra Sakti; Ubay, Isnina Noor; Erliana, Savira Rinda
Indonesian Journal of Chemistry Vol 24, No 4 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.93255

Abstract

The use of natural rice straw as a filler for composite materials has not been optimally utilized; only around 7–16% of the grain is used in the industry. Various developments have been carried out, including its use as a filler or reinforcement for wood polymer composite products, but it is not effective because of poor interfacial adhesion. An alternative to increase the effectiveness of straw fibers in wood composites is by using cold plasma (atmospheric) treatment. In this research, composites consisting of straw fiber and biodegradable polyvinyl alcohol (PVA) matrix were made with and without cold plasma injection treatment. PVA is used because of its hydrophilic nature and function as a matrix. This research aims to determine the effect of cold plasma injection on straw fiber/PVA composites. The method used consists of preparation of straw fiber and composites, flexural testing with time variations of 10, 20, and 30 sec, morphological analysis using SEM to determine surface roughness, and FTIR test. The results showed that treatment with and without plasma provided significant differences in roughness. Plasma causes roughness to increase, thereby increasing the adhesion of the interface to the matrix.
PENERAPAN SISTEM MANAJEMEN KESELAMATAN DAN KESEHATAN KERJA (PERENCANAAN DAN PELAKSANAAN) TERHADAP SISWA SMK GONDANG WONOPRINGGO Rifa'i, Muhammad Arifian; Budiman, Febrian Arif; Sumbodo, Wirawan; Setiadi, Rizki
Jurnal Pendidikan Vokasi Otomotif Vol. 7 No. 1 (2024): (November)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpvo.v7i1.77956

Abstract

            This study aims to describe the achievement of the K3 management system of class X11 TKR4 students with the dimensions of planning and implementation. The research was conducted in the TKR workshop of SMK Gondang Wonopringgo. The data collection technique used questionnaires, interviews, and documentation, the results were analyzed by categorizing each sub-indicator achievement and describing each sub-indicator. The results of the study obtained a planning achievement level of 49.15% in the poor category and the achievement of the implementation indicator of 52.8% so that it was categorized in the good enough category. The achievement of planning indicators includes sub-indicators of hazard identification with an achievement of 60% so that it falls into the category of good enough and sub-indicators of goals and programs with an achievement of 38.3% so that it falls into the category of not good enough. The achievement of implementation indicators includes sub-indicators of resources and responsibilities of 71.7%, communication and participation with students 42.2%, reporting and recording work accidents 45%, documentation of K3 letters 21.7%, purchasing goods and services 71.7%, work environment 75%, maintenance and repair of facilities 66.7%, health monitoring 82.2%, supervision 56.7%, first aid 35.8%, disaster emergency preparedness 13.3%.
Pelatihan pembuatan objek 3D bagi siswa SMA Negeri 1 Kedungwuni sebagai upaya meningkatkan keterampilan desain dan peminatan jurusan teknik mesin Bahatmaka, Aldias; Maulana, Sonika; Syafei, M. Hilman Gumelar; Setiadi, Rizki; Fahmi, Fiqri Fadillah; Hidayat, Indra Nurul; Buana, Lanang Puspa; Ghyferi, Andi Abdullah
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 4 (2024): December
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i4.27361

Abstract

Abstrak Pelatihan pembuatan objek 3D Modelling menggunakan Blender telah selesai dilaksanakan pada hari selasa tanggal 6 agustus 2024 untuk siswa siswi Sekolah Menengah Atas (SMA) Negeri 1 Kedungwuni Kabupaten Pekalongan. Tujuan pelatihan ini adalah untuk memberikan peserta pemahaman mendasar tentang cara menggunakan alat desain Blender untuk membuat dan mendesain animasi objek 3D yang dapat diekspresikan dalam bentuk visual realistis, termasuk ukuran, tekstur, dan bentuk item. Pendekatan pelatihan ini terdiri dari beberapa fase praktik yang berfokus pada pengenalan Blender 3D, ide-ide mendasar untuk animasi 3D, desain, dan pengukuran, serta kerangka kerja dan pemodelan, pemberian tekstur, dan visualisasi. Panduan belajar komprehensif tentang pemodelan 3D disediakan bagi siswa, yang bekerja dalam kelompok untuk membuat dan merancang animasi objek 3D dari awal hingga akhir. Ini membantu mereka menjadi lebih kreatif dan memahami apa yang membuat seni desain responsif menarik secara visual. Hasil kuesioner menunjukkan bahwa adanya peningkatan pengetahuan siswa dalam kegiatan pelatihan pembuatan objek 3D. Sebelum dilakukan pelatihan, rata-rata pengetahuan siswa sebesar 35% dalam memahami desain 3D, kemudian mengalami peningkatan menjadi rata-rata sebesar 90% dalam memahami memuat objek 3D mengunakan software blender setelah diberi pelatihan. Hal ini dapat disimpulkan bahwa para siswa mampu membuat desain pemodelan objek 3D sederhana dengan mudah. Namun tentunya perlu ditingkatkan durasi pelatihan dengan harapan memberikan dampak positif yang lebih banyak dalam meningkatkan softskill siswa SMA Negeri 1 Kedungwuni. Kata kunci: pelatihan; Objek 3D model; blender; pengabdian masyarakat Abstract Training in the field of 3D Modeling using Blender has been completed for students of Senior High School (SMA) Negeri 1 Kedungwuni, Pekalongan Regency. The purpose of this training is to provide participants with a basic understanding of how to use Blender design tools to create and design 3D object animations that can be expressed in realistic visual forms, including the size, texture, and shape of the item. This training approach consists of several practical phases that focus on the introduction of Blender 3D, fundamental ideas for 3D animation, design, and measurement, as well as frameworks and modeling, texturing, and visualization. A comprehensive study guide on 3D modeling is provided for students, who work in groups to create and design 3D object animations from start to finish. This helps them become more creative and understand what makes responsive design art visually appealing. The results of the questionnaire showed that there was an increase in student knowledge in the 3D object creation training activities. Before the training, the average student knowledge was 35% in understanding 3D design, then increased to an average of 90% in understanding loading 3D objects using blender software after being given training. It can be concluded that students are able to create simple 3D object modeling designs easily. However, of course, the duration of the training needs to be increased in the hope of providing more positive impacts in improving the soft skills of students of SMA Negeri 1 Kedungwuni. Keywords: training; 3D object model; blender; community service
Analisis Statis Desain Chassis Kendaraan Listrik 2 Penumpang Prasetya, Deni Bagus; Sumbodo, Wirawan; Setiadi, Rizki
Jurnal Rekayasa Mesin Vol. 18 No. 3 (2023): Volume 18, Nomor 3, Desember 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i3.3704

Abstract

Tujuan penelitian ini adalah untuk mendapatkan sebuah rancangan chassis kendaraan listrik yang aman dan nyaman. Metode penelitian yang digunakan adalah metode Research And Development (R&D) dengan bantuan perangkat lunak (software) yang mampu untuk pembuatan suatu model dalam bentuk gambar 3 dimensi, dalam hal ini software yang digunakan adalah Autodesk Inventor 2019. Autodesk Inventor 2019 dapat menguji kontruksi chassis yang dapat mengetahui nilai Von-Misses Stress, Displacement dan Safety Factor pada konstruksi frame kendaraan listrik. Dari hasil analisis perancangan chassis kendaraan listrik diperolehkan hasil pengujian yang dilakukan secara perhitungan komputer dimana angka dari tiap-tiap bagian yang diuji nilai safety factor sangat aman. Hasil penelitian ini menunjukkan bahwa desain chassis yang dibuat adalah jenis ladder frame yang dapat digunakan untuk kendaraan listrik 2 penumpang. Nilai Von-misses stresses pada material Steel AISI 1035, Besi Hollow ASTM A 500 dan Aluminium Alloy AA 6063-T6 berturut-turut adalah 5.53 x 107 Pa, 5.52 x 107 Pa dan 5.53 x 107 Pa. Nilai Displacement pada material Steel AISI 1035, Besi Hollow ASTM A 500   dan Aluminium Alloy AA 6063-T6 berturut-turut adalah 0.141 mm, 0.141 mm dan 0.250 mm. Nilai Safety factor pada material Steel AISI 1035, Besi Hollow ASTM A 500 dan Aluminium Alloy AA 6063-T6 berturut-turut adalah 6.689, 4.875 dan 3.067. Desain chassis ladder frame yang dibuat dengan material Steel Aisi 1035 memiliki safety factor yang lebih tinggi dibandingkan dengan material Besi Hollow ASTM A 500 dan Aluminium Alloy AA 6063-T6. Tetapi pada tahap fabrikasi di lapangan lebih memilih material Besi Hollow ASTM A 500, alasanya menggunakan material Besi Hollow ASTM A 500 karena material Besi Hollow ASTM A 500 memiliki nilai yield strength yang tidak jauh dengan material Steel Aisi 1035. Dan alasan lainya yaitu karena Besi Hollow ASTM A 500 memiliki nilai safety factor yang sudah di atas angka 4 dan pastinya harga Besi Hollow ASTM A 500 relative lebih terjangkau dibandingkan dengan material Steel Aisi 1035.
Design and analysis of pneumatic based automatic unwind splicing on a rotogravure machine Rahmadhi, Arif; Sumbodo, Wirawan; Saputro, Danang Dwi; Musyono, Ari Dwi Nur Indriawan; Setiadi, Rizki
JMEL : Journal of Mechanical Engineering Learning Vol. 13 No. 1 (2024): June
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jmel.v13.i1.3179

Abstract

The aim of this design is to obtain a design for the tension control system and the automatic system, which are the two mechanisms in the unwind, accompanied by an estimate of the design costs. The design process was carried out using the French method. This method is often used for new products or still has few competitors, with the advantage of being able to facilitate the selection of product concept variants efficiently when designing products that have many limitations in terms of variants. Based on the validation results, the second concept design used is a tension measurement mechanism using a load cell and speed regulation using a magnetic powder brake. The results of numerical calculations show that the maximum rotation torque value of the printed material is 13.6 Nm, the maximum speed is 628.24 rpm, and the maximum stress value measured is 206.122 N. Based on the validation results, the second concept design is a movement mechanism that uses four pneumatic cylinders to move the frame and cutter. The results of numerical calculations show that the time required to cut the material is 0.24 seconds, and the time required to return to its original position is 2.25 seconds. The amount of air required for one cutting cycle is 37.83 ×10-6 m3/s. The estimated cost of designing the overall unwind unit based on the components used is IDR. 74,873,625.
Design and development of body electrical system and controller temperature control system for electric motorcycles Kurniawan, Aldi; Setiadi, Rizki; Sumbodo, Wirawan; Naryanto, Rizqi Fitri
Jurnal Inovasi Mesin Vol. 7 No. 1 (2025): APRIL 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v7i1.21246

Abstract

The rapid evolution of technology has transformed the automotive industry, transitioning from internal combustion engines to electric vehicles (EVs) to reduce greenhouse gas emissions and dependence on fossil fuels. This study focuses on developing a body electrical system for electric motorcycles by integrating components like lead-acid batteries, pulse-width modulation (PWM) controllers, waterproof DS18B20 temperature sensors, DC-DC converters, and energy-efficient LED lighting. The system is designed to comply with Indonesia’s National Standards (SNI). Employing the 4D research methodology (Define, Design, Develop, Disseminate), the electrical system underwent rigorous validation and testing. Results highlight enhanced performance, improved energy efficiency, and effective thermal management. The integration of a temperature control system reduced the risk of overheating, ensuring safety and operational reliability. This research contributes to advancing EV technology, offering a framework for optimizing body electrical systems for electric motorcycles in compliance with safety and performance standards
Design of An IOT-Based Voltage and Current Monitoring System and Turbine Performance Analysis In A Micro Hydro Power Plant Syahbana, Zaka; Setiadi, Rizki
Jurnal Inovasi Mesin Vol. 7 No. 1 (2025): APRIL 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v7i1.23615

Abstract

Microhydro power plants (MHPP) are a potential renewable energy solution for remote areas that have abundant water resources. However, monitoring the performance of MHPP systems in these areas is still a challenge, especially in terms of reliability and energy conversion efficiency. This research aims to design and develop an Internet of Things (IoT)-based monitoring system capable of monitoring real-time voltage and current in MHPs. The system was tested using the Archimedes Screw turbine in a laboratory-based test scale, and a literature study was conducted to compare the effectiveness of several types of micro hydro turbines such as Pelton, Crossflow, Turgo, and Archimedes Screw. The results showed that although the efficiency of screw turbines is relatively lower, they are suitable for use in locations with low head and stable water flow. The 4D approach method was used in the development of this monitoring system, and the results show that the system is able to provide accurate data and support the improvement of MHPP operational reliability.
Blended learning model in Seafarers Training Program for level II technical expert based on the needs of the shipping industry Widiatmaka, F. Pambudi; Raharjo, Tri Joko; Sudana, I Made; Sumbodo, Wirawan; Setiadi, Rizki
Jurnal Pendidikan Vokasi Vol. 12 No. 3 (2022): November
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpv.v12i3.47823

Abstract

Nowadays, the Level II Technical Expert Seafarers' Training Program learning is conventional. This is burdensome for students due to the increased cost of living for students and needs to be revised. The coronavirus pandemic also limits direct learning. This article discusses the blended learning model for Seafarers Training Program for Level II Technical Experts. This research uses mixed methods. Quantitative methods are used to determine student responses to learning conditions. Student response data was taken using a questionnaire filled in by 41 students. Qualitative methods are used in finding the Blended Learning Model in the Level II Technical Seafarers Training Program Based on the needs of the Shipping Industry. In preparing the data model, the literature review includes blended learning, e-modules, and problem-based learning. The learning model is based on a literature review using the principles of education management. The descriptive analysis describes the model findings of Blended learning at Level II Technical Seafarers' Training. The findings in this article are that The MixPAM (Mixture Blended Problem-based And e-Module) model is a mixture of blended learning and problem-based learning e-module. The results show that the MixPAM model is hypothetically effective and efficient in improving student skills according to industry needs. Professional skills include ship engine repair maintenance (according to industry requirements), ship electrical, control, and ship management systems. Interpersonal skills include communication, teamwork, responsibility, and critical thinking.
Co-Authors Aldias Bahatmaka Buana, Lanang Puspa Budiman, Febrian Arif Chusni Ansori Dony Hidayat Al-Janan Erliana, Savira Rinda Fahmi, Fiqri Fadillah Fathur Rokhman Fitriyana, Deni Fajar Gendroyono, R Ambar Kuntoro Mursit Ghyferi, Andi Abdullah Harianingsih, Harianingsih Hidayat, Indra Nurul I Made Sudana Indriawan, Ari Nur Dwi Kriswanto Kriswanto, Kriswanto Kurniawan, Aldi Meiartha, REGA Muhammad Zulfikar Musyono, Ari Dwi Nur Indriawan Pangestu, Indra Sakti Prasetya, Deni Bagus PUDJI ASTUTI Rachmadi, Moch Faizal Rahmadhi, Arif Rifa'i, Muhammad Arifian Rizqi Fitri Naryanto Rusiyanto, R. Saputra, Luffy Eza Septiyanto, Angga Siregar, Januar Parlaungan Sonika Maulana Sudiyono Sudiyono Sudiyono, S. Sukoco, Imam Sunyoto Sunyoto Syafei, M. Hilman Gumelar Syahbana, Zaka Tri Joko Raharjo Ubay, Isnina Noor Widiatmaka, F. Pambudi Widiyanto Widiyanto Wirawan Sumbodo yuniarsih, tinna