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All Journal JCES (Journal of Character Education Society) Indonesian Journal of Engineering and Technology (INAJET) Jurnal Ilmu Ekonomi, Pendidikan dan Teknik (IDENTIK) Automotive Innovations Journal
Diah Wulandari
Mechanical Engineering, Faculty Of Vocational, Universitas Negeri Surabaya
Religion Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Mechanical Engineering

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PELATIHAN SOLIDWORK SEBAGAI UPAYA MENINGKATKAN KEMAMPUAN TEKNIK MENGGAMBAR BAGI SISWA SMKN Novi Sukma Drastiawati; Nur Aini Susanti; Tri Hartutuk Ningsih; Diah Wulandari; Andita Nataria Fitri Ganda
JCES (Journal of Character Education Society) Vol 3, No 3 (2020): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jces.v3i3.1470

Abstract

Abstrak: Dunia pendidikan saat ini tengah menghadapi revolusi industri 4.0, untuk generasi muda perlu persiapan dari segi kemampuan dalam bidang komputer. Bagi siswa SMK, kemampuan yang harus ditingkatkan adalah terampil menggunakan komputer untuk mendesain sebagai pengembangan pada mata pelajaran teknik menggambar. SMKN 1 Bendo merupakan salah satu SMK terbaik di Kabupaten Magetan, sehingga penambahan keterampilan sudah layak dimiliki oleh siswa-siswa pada sekolah tersebut, namum berdasarkan silabus yang ada salah satu pengembangan teknik menggambar masih berupa mata pelajaran CAD (Computer Aided Design). Berdasarkan misi sekolah, satunya adalah mengupayakan mutu layanan pendidikan kejuruan sesuai dengan tuntutan masyarakat dunia usaha dan dunia industri, maka pelatihan tentang teknik menggambar menggunakan komputer perlu ditambahkan secara khusus. Salah satu pengembangan yang diperlukan adalah terampil menggunakan software SolidWork. Para siswa dapat meningkatan keterampilan menggunakan software tersebut dengan mengikuti pelatihan yang diadakan oleh dosen-dosen Teknik Mesin UNESA. Metode pelatihan SolidWork menggunakan metode pembelajaran secara langsung (direct instruction), yang meliputi kegiatan orientasi, presentasi, latihan terstruktur, latihan terbimbing, dan latihan mandiri. Respon siswa terhadap pelatihan SolidWork adalah 97,67% hal tersebut menunjukkan siswa memberikan respon sangat positif.Abstract: The World of Education is currently facing an industrial revolution 4.0, for the younger generation needs preparation in terms of capabilities in the computer field. For vocational students, the ability that must be improved is in using computers to design as a development in drawing engineering subjects. Bendo 1 Vocational School is one of the best Vocational Schools in Magetan Regency, so that the addition of skills is appropriate for students at the school, but based on the syllabus, one of the techniques of drawing is CAD (Computer Aided Design) subjects. Based on the school mission, one of which is to strive for the quality of vocational education services in accordance with the demands of the business community and the industrial world, training on drawing techniques using computers needs to be added specifically. One development that is needed is regarding the ability of students to skillfully use Solidwork software. Students can improve their skills to use the software by attending training held by UNESA Mechanical Engineering lecturers. The SolidWork training method uses the direct instruction method, which includes orientation activities, presentations, structured exercises, guided exercises, and independent training. The response of students to SolidWork training was 97.67%, it shows students gave very positive responses.
Smart Lemon autoMaker System (SLaMs) Berbasis Internet of Things (IoT) Puput Wanarti Rusimamto; Anita Qoiriah; Diah Wulandari
Indonesian Journal of Engineering and Technology (INAJET) Vol. 2 No. 1 (2019): September 2019
Publisher : Fakultas Teknik Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/inajet.v2n1.p30-35

Abstract

Telah dilakukan penelitian dan pembuatan alat pemeras jeruk berbasis Internet of Things (IoT) yang akan digunakan sebagai pengabdian kepada masyarakat. Pengabdian kepada masyarakat ini melibatkan mitra penjual sari jeruk. Alat yang dibuat diberi nama Smart Lemon autoMaker System (SLaMs) Berbasis Internet of Things (IoT). Dari komponen yang digunakan dalam pembuatan pemeras jeruk, maka sensor lidar yang bisa direkomendasikan sebagai penerima sinyal berupa tegangan analog dari beban berbasis Arduino Uno yang mengubah tegangan analog menjadi digital berhasil dibuat dengan hasil yang baik. Dari hasil analisis perhitungan dan pengukuran diperoleh waktu proses minimal 20 detik untuk menghasilkan air perasan jeruk.
Analisis Perbandingan Debit Air Pada Mesin Pompa Air Menggunakan Bahan Bakar Pertalite dan LPG M. Fishal Askarul Faris Aidah; Arya Mahendra Sakti; Diah Wulandari; Andita Nataria Fitri Ganda
Automotive Innovations Journal Vol. 1 No. 2 (2025)
Publisher : Department of Automotive Engineering Technolgy

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pertanian merupakan salah satu sektor utama dalam perekonomian Indonesia, dengan padi sebagai tanaman pangan utama. Modernisasi pertanian telah mendorong penggunaan mesin pompa air sebagai bagian integral dari kegiatan bercocok tanam, namun banyak mesin masih menggunakan bahan bakar minyak bumi (BBM) yang mahal dan tidak ramah lingkungan. Oleh karena itu, konversi ke bahan bakar gas (BBG), khususnya Liquid Petroleum Gas (LPG), menjadi alternatif yang menjanjikan. Penelitian ini bertujuan untuk menganalisis efisiensi mesin pompa air yang menggunakan LPG sebagai bahan bakar, serta melakukan analisis biaya bahan bakar dan laju aliran airnya. Ketersediaan mesin pompa dengan LPG masih terbatas, terutama di daerah terpelosok. Oleh karena itu, penelitian ini diharapkan dapat memberikan pemahaman yang lebih baik tentang penggunaan LPG dalam mesin pompa air irigasi. Pada penelitian ini hasilnya adalah Debit air yang dihasilkan pertalite ialah sebesar 4,4 liter/detik sedangkan LPG 3 kg menghasilkan sebesar 3,4 liter/detik. Dari hasil tersebut kita bisa bandingkan untuk laju debit air lebih besar menggunakan pertalite dari pada gas LPG 3 kg, Pompa air berbahan bakar pertalite dapat dilakukan modifikasi menjadi mesin pompa air berbahan bakar Gas/LPG dengan melakukan perubahan pada karburator konverter kit, Pompa air berbahan bakar pertalite dapat beroperasi sesuai waktu dan kebutuhan pengairan dan cepat dan Penggunaan mesin pompa air berbahan bakar pertalite dapat menunjang peningkatan beberapa aspek bidang seperti pertanian dengan kecepatan pada laju bebit.
Pengaruh Variasi Ketebalan Penampang Segiempat pada Crashbox Terhadap Kemampuan Menyerap Energi Prembayun Prasetiyo; Diah Wulandari; Ferly Isnomo Abdi; Aji Nugroho
Automotive Innovations Journal Vol. 2 No. 1 (2026)
Publisher : Department of Automotive Engineering Technolgy

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Abstract

Tingginya angka kecelakaan lalu lintas dengan tipe tabrakan frontal mendorong pengembangan sistem keselamatan pasif kendaraan, salah satunya adalah Crashbox. Crashbox berfungsi menyerap energi tumbukan melalui deformasi plastis sehingga gaya yang diteruskan ke struktur kendaraan dan penumpang dapat diminimalkan. Penelitian ini bertujuan untuk menganalisis pengaruh variasi ketebalan penampang segiempat terhadap kemampuan penyerapan energi dan karakteristik deformasi Crashbox. Metode yang digunakan adalah simulasi numerik berbasis Finite Element Analysis (FEA) menggunakan perangkat lunak ANSYS Explicit Dynamics. Model Crashbox berbahan aluminium alloy AA6061-T6 dianalisis dengan variasi ketebalan 2 mm, 3 mm, dan 4 mm. Simulasi tumbukan dilakukan secara aksial dengan kecepatan impactor 15,6 m/s dan massa 100 kg. Parameter crashworthiness yang dianalisis meliputi Energy Absorption (EA), Specific Energy Absorption (SEA), Mean Crushing Force (MCF), Initial Peak Force (IPF), dan Crash Load Efficiency (CFE). Hasil simulasi menunjukkan bahwa peningkatan ketebalan Crashbox meningkatkan kemampuan penyerapan energi dan kestabilan deformasi. Crashbox dengan ketebalan 4 mm menghasilkan nilai EA tertinggi sebesar 6,862 kJ, SEA sebesar 13,92 kJ/kg, serta CFE sebesar 38,57%, dengan pola deformasi progressive axial folding yang paling stabil. Hasil penelitian ini menunjukkan bahwa variasi ketebalan penampang segiempat berpengaruh signifikan terhadap kinerja crashworthiness Crashbox dan dapat menjadi referensi dalam perancangan sistem keselamatan kendaraan.
Analisis Pengaruh Variasi Kulit Ari Dan Model Hopper Terhadap Waktu Produksi Serta Tingkat Kehalusan Hasil Penggilingan Farid Aziz Hardinansya; Arya Mahendra Sakti; Ferly Isnomo Abdi; Diah Wulandari
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 3 No. 1 (2026): IDENTIK - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v3i1.1267

Abstract

This research is motivated by the ineffectiveness of stone model grinding machine in processing light, fibrous, and thin grain husk, so that a disc mill type FFC-15 grinding machine based on friction mechanism between discs was developed. The main objective is to analyze the effect of variations in husk type (mung bean, soybean, peanut) and hopper model (cylindrical, pentagonal, pyramidal) on production time, actual grinding capacity, level of fineness of the grinded results, and the extent to which differences in the physical characteristics of the husk affect the material flow rate in various hopper models with a test mass of 1 kg and a 1 mm sieve to understand the mechanism of non-homogeneous material flow in the grinding system. The experimental method involves testing the combination of the three types of husk and hopper, repeated three times, measuring production time, capacity (kg/hour), and percentage passing through a 1 mm sieve. The results showed an actual capacity of 2.70–4.71 kg/hour, where the pyramid hopper excelled with the shortest time, a maximum capacity of 4.71 kg/hour, and a fineness of 94.40% for mung bean hulls, while soybean hulls were the lowest due to unstable flow. The pyramid hopper proved to be the most effective in improving the hull grinding performance of grains.      
Analisis Pengaruh Variasi Kecepatan Putaran  Dan Jarak Celah Mata Pisau Pada Mesin Pengupas Biji Kopi Terhadap Hasil Pengupasan Muhammad Prayogo; Diah Wulandari
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 3 No. 1 (2026): IDENTIK - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v3i1.1271

Abstract

This study aims to investigate the effect of machine rotational speed and blade clearance on the performance of a wet coffee cherry hulling machine. The performance parameters evaluated include the percentage of peeled coffee cherries, the percentage of unpeeled cherries, and machine capacity. Identifying the influence of these parameters is expected to determine the optimal operating conditions that enable an effective and efficient peeling process without causing damage to the coffee beans. A common problem encountered in the field is the suboptimal peeling of wet coffee cherries, indicated by a high proportion of unpeeled cherries or bean damage due to improper machine settings. In practice, farmers and coffee processors often rely on approximate adjustments of blade clearance and rotational speed, resulting in inconsistent peeling quality and limited machine capacity. An experimental method was employed by testing a wet coffee cherry hulling machine at rotational speeds of 300 rpm, 350 rpm, and 420 rpm, combined with blade clearances of 2 mm, 4 mm, and 6 mm. The results show that smaller blade clearances produce higher peeling percentages, while increasing rotational speed tends to improve machine capacity. The optimal operating condition was achieved at a rotational speed of 420 rpm with a blade clearance of 2 mm, yielding the highest peeling percentage and the greatest machine capacity.
Pengembangan Mesin Pengupas Biji Kopi Basah Skala Rumah Tangga Dengan Pemisahan Biji Terkupas Dan Tidak Terkupas Berdasarkan Ukuran Diameter Biji Kopi Bagus Rizal Affandi; Diah Wulandari
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 3 No. 1 (2026): IDENTIK - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v3i1.1278

Abstract

Wet coffee bean processing at the household-scale farmer level is still largely carried out manually, requiring considerable time and labor while producing non-uniform bean quality. The use of wet coffee bean hulling machines is expected to improve post-harvest processing efficiency; however, in practice, several problems are still encountered, particularly in the coffee bean separation system. This study aims to design, construct, and test the performance of a household-scale wet coffee bean hulling machine and to analyze the performance of the separation system between hulled and unhulled coffee beans.The research method used was Research and Development (R&D), which included the stages of design, fabrication, and performance testing. The machine was designed using a single-phase electric motor with a power rating of 1 HP, a pulley and V-belt transmission system, a friction-based hulling mechanism, and a perforated screen as the coffee bean separation medium. Performance testing was conducted using post-harvest wet coffee beans at a shaft rotational speed of 420 rpm. The observed parameters included the machine’s ability to perform the hulling process and the hulling process time.The test results show that the wet coffee bean hulling machine is capable of performing the hulling process at a shaft rotational speed of 420 rpm and operates stably during the testing process. The coffee bean separation system functions in accordance with the design principles and is able to support wet coffee bean processing at the household scale. Based on the test results and analysis, the developed wet coffee bean hulling machine can be used as a supporting tool for household-scale wet coffee processing and has the potential for further development to improve performance and the effectiveness of post-harvest coffee processing.                                            
Analisis Kekuatan Tarik Las Smaw Pada Pipa Carbon Steel A106 Grade B Genta Arya Rahma Mahendra; Muhamad Nahrudin Ibad; Diah Wulandari
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 3 No. 1 (2026): IDENTIK - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v3i1.1280

Abstract

The purpose of this study is to analyze the welding strength, specifically the SMAW (Shielded Metal Arc Welding) method, on ASTM A106 grade B carbon steel pipes. These pipes are commonly used in the oil and gas industry, making it important to understand the mechanical properties that occur after the welding process. Tensile testing was conducted on specimens taken from welded pipe joints, using SMAW as the welding method parameter. The results of the test indicate that the welding method significantly influences tensile strength, elongation, and other mechanical properties. This study found that maximum strength is achieved at certain parameters, highlighting the importance of control in the welding process to ensure joint quality. In addition, microscopic analysis of the microstructure shows that the composition and phase characteristics of the weld affect joint strength. The findings of this research are expected to provide guidance for industry in improving welding quality and the durability of carbon steel pipe joints, as well as serve as a reference for further studies in developing more efficient and effective welding techniques.             
Analisis Sudut Pisau Pada Mesin Pencacah Rumput Gajah Untuk Pembuatan Silase Pakan Ternak Sapi Muhammad Erlangga Adi Nugraha; Diah Wulandari; Firman Yasa Utama; Aji Nugroho
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 3 No. 1 (2026): IDENTIK - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v3i1.1285

Abstract

This study examines how the blade angle of an elephant grass chopping machine affects the chopping results used for making cattle feed silage. Elephant grass needs to be chopped to a standard size for silage production, with the ideal chop length ranging from 2–5 cm and relatively uniform, so that the fermentation process runs properly and the feed is easier for livestock to consume. The research was conducted using an experimental method with 1 kg of fresh elephant grass for each trial. The chopped output was classified into three size categories: <2 cm, 2–5 cm, and >5 cm, to determine which met the silage standard most effectively. The study tested three blade angles—30°, 45°, and 60°—and three machine rotational speeds (1700 rpm, 2000 rpm, and 2300 rpm) to evaluate their effects on chopping time, cut size distribution, and processing capacity. The results show that the best performance in terms of machine rotational speed at the 30° blade angle occurred at 2300 rpm. The highest percentage of chopped material within the 2–5 cm size range was obtained at a 45° blade angle, reaching approximately 55–58% of the total chopped output, indicating the most optimal conformity with silage size standards.
Perancangan Sistem Gerak Semi Otomatis Pada Prototipe Mesin Frais Mini Berbasis Spindel Bor Tangan Dengan Arduino Dan Motor Stepper Dicky Tria Prasetyo; Diah Wulandari
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 3 No. 3 (2026): IDENTIK - Mei
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v3i3.1491

Abstract

The development of manufacturing technology and Industry 4.0 demands machine tools that are more efficient, precise, and affordable for educational purposes. However, conventional machines are still limited by high costs and dependence on operator skills, while laboratory-scale machines are not yet optimal in terms of accuracy and control systems. This study aims to design and build a semi-automatic mini milling machine prototype utilizing a hand drill as the spindle, stepper motors as axis actuators, and an Arduino as the main controller. The research method employed is a Research and Development (R&D) approach, which includes the stages of design, fabrication, and motion system testing. The design process began with the creation of a system block diagram and 2D/3D designs, followed by mechanical assembly and electrical system installation. Testing focused on motion accuracy and stability by comparing the theoretical values programmed in the Arduino IDE with the actual measurement results obtained from the test material. The research results indicate that the semi-automatic mini milling machine prototype is capable of operating effectively and achieving a high level of accuracy. In the testing of movement along the X and Y axes, the average accuracy levels obtained were 99.41% and 99.88%, respectively. Meanwhile, for the Z axis, the average accuracy levels were 97.91% for Z1 and 95.8% for Z2. These values indicate that the motion system is able to execute programmed commands with relatively small deviations and remains within acceptable tolerance limits for machining soft materials such as nylon or polyethylene.
Co-Authors Aji Nugroho Andita Nataria Fitri Ganda Anita Qoiriah Arya Mahendra Sakti Bagus Rizal Affandi Dicky Tria Prasetyo Farid Aziz Hardinansya Ferly Isnomo Abdi Firman Yasa Utama Genta Arya Rahma Mahendra M. Fishal Askarul Faris Aidah Muhamad Nahrudin Ibad Muhammad Erlangga Adi Nugraha Muhammad Prayogo Novi Sukma Drastiawati Nur Aini Susanti Prembayun Prasetiyo Puput Wanarti Rusimamto Tri Hartutuk Ningsih