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All Journal Infotekmesin Madani : Indonesian Journal of Civil Society Accurate: Journal of Mechanical Engineering and Science Ocean Engineering: Jurnal Ilmu Teknik dan Teknologi Maritim Karunia: Jurnal Hasil Pengabdian Masyarakat Indonesia Teknik: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Jenal Sodikin
Politeknik Negeri Cilacap
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisa Kerusakan Transmisi Otomatis dengan Metode Failures Mode and Effects Analysis (FMEA) dan Logic Tree Anaysis (LTA) Jenal Sodikin; Unggul Satria Jati
Accurate: Journal of Mechanical Engineering and Science Vol 3, No 1 (2022): April 2022
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v3i1.1273

Abstract

Sistem pemindah tenaga merupakan bagian yang tidak terpisahkan dari sebuah unit kendaraan, komponen ini berfungsi sebagai penerus daya dari mesin, memperbesar momen yang dihasilkan mesin sesuai kebutuhan beban dan kondisi jalan serta membalikan putaran. Jenis Seiring usia pakai dari kendaraan maka transmisi yang digunakannya akan mengalami kerusakan atau bahkan gagal fungsi, sebagian besar transmisi otomatis mulai bermasalah setelah kendaraan digunakan diatas 100.000 km atau pada kendaraan yang tidak digunakan sesuai dengan ketentuan serta tidak melaksanakan prosedur perawatan  dengan baik maka kerusakan transmisi otomatis bisa datang lebih cepat. Berdasarkan penerapan metode Failures Mode Effects Analysis (FMEA) yang digunakan untuk mengevaluasi komponen pada suatu sistem dengan cara meneliti potensi model kegagalannya untuk menentukan dampak yang akan terjadi pada komponen atau sistem kerja ditemukan nilai Risk Piority Number (RPN) yang paling tinggi terdapat pada komponen Seal Piston Matic Sebesar 450, Multiple Clutch/Clutch Pack 360, Selenoid Valve 324. Setiap potensi dari model kegagalan diklasifikasikan berdasarkan dampak yang dapat ditimbulkan pada keberhasilan sistem tersebut ataupun pada keselamatan pengguna dengan pembagian katagori menggunakan  Logic Tree Analysis (LTA) dengan hasil sebagian besar komponen transmisi otomatis termasuk dalam kerusakan tipe B (Outage Poblem) dimana komponen tersebut mengakibatkan kegagalan pada seluruh atau sebagian sistem. Berdasarkan nilai RPN maka pemeliharaan yang tepat adalah Pemeliharaan Prediktif.
Analisis Kinematik Singularty Pada Manipulator 7 DOF Dengan Software Simulasi ROBOAnalyzer Nur Akhlis Sarihidaya Laksana; Radhi Ariawan; Unggul Satria Jati; Jenal Sodikin; Ulikaryani
Infotekmesin Vol 13 No 2 (2022): Infotekmesin: Juli, 2022
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v13i2.1538

Abstract

Studies related to manipulators are still being carried out, along with the times and needs. Utilization in manufacturing and fabrication has led to the development of many manipulators. Smooth, fast, and accurate movement continue to be developed. In the case of the multi manipulator, 7 DOF (Degree of Freedom) is a type of manipulator that has special features in terms of joints. Inverse kinematic is a parameter used to control the orientation and movement of the manipulator. 7 DOF has three singularity wrist, elbow, and shoulder. In the simulation, each singularity produces an inverse kinematic matrix which is used to control the movement of the manipulator. The method used is to determine the angle of motion of the joint (continues joint angel) with simulation to produce calculations that are fast, precise, accurate, and stable. The target of each joint with the theta value that has been determined by the singularity was successfully carried out with an error of 0%.
Karakteristik Struktur Kristal In2Se3 Hasil Preparasi Dengan Metode Bridgman Ulikaryani Ulikaryani; Jenal Sodikin; Nur Akhlis Sarihidaya Laksana; Unggul Satria Jati; Ari Kristiningsih
Infotekmesin Vol 14 No 1 (2023): Infotekmesin: Januari, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i1.1753

Abstract

Apart from using silicon material, thin-layer solar cells can be made from various types of semiconductor materials, such as a combination of groups III and VI. In solar cell applications, these materials are usually used as n-type coatings. This study not only aimed to determine the crystal structure and the effect of annealing temperature on the crystal lattice parameters but also to determine the chemical composition and surface morphological structure of the crystals formed from the preparation. The crystal growth process was carried out using the Bridgman method with different heating patterns. The temperature in both annealing temperatures is 200oC and 250oC. The physical properties of the prepared In2Se3 crystals were characterized using XRD, SEM, and EDAX. XRD Characterization was used to determine the crystal structure, while SEM and EDAX characterization was used to determine the surface morphology and chemical composition of the crystals. The result of the XRD characterization showed that the formed In2Se3 crystals were polycrystals with a hexagonal structure. Based on the diffractogram obtained, the In2Se3 crystalline heating 1 has better quality. EDAX analysis showed that the In2Se3 crystals were composed of elements of In and Se with a mole ratio of 2:9, while the SEM characterization showed that the color of the surface morphology of the In2Se3 crystals was not homogeneous.
Peningkatan Kapasitas Pengrajin Bambu desa Banjarwaru dalam Bidang Pemasaran dan Jaringan Ari Kristiningsih; Khoerudin Wittriansyah; Hety Dwi Hastuti; Theresia Evila PSR; Jenal Sodikin; Nurlinda Ayu Triwuri; Ilma Fadlilah
Karunia: Jurnal Hasil Pengabdian Masyarakat Indonesia Vol. 2 No. 4 (2023): Desember : Jurnal Hasil Pengabdian Masyarakat Indonesia
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/karunia.v2i4.1557

Abstract

Banjarwaru Village known as bamboo crafts village. Originally it was just a household product, it began to develop into a product that has aesthetic value. Sales of handicraft products are also starting to grow, they are starting to spread to other areas. Then the problem arises, namely inconsistent sales levels. To overcome this problem, the Cilacap State Polytechnic carried out Community Service activities by conducting Focus Group Discussion (FGD) activities by inviting resource persons from business actors to discuss with Banjarwaru village craftsmen. The aim of this activity is that Banjarwaru village craftsmen can find solutions to increase the level of sales of their craft products. From the results of the FGD, it was found that steps that can be taken to increase sales levels are carrying out business legality, building networks with the government, consumers, and fellow business actors, and increasing promotions through digital platforms.
Desain Pisau Pengurai dan Sistem Pengayak serta Uji Produk Mesin Pengolah Sabut Kelapa sebagai Bahan Mentah Komposit Roy Aries Permana Tarigan; Kaleb Priyanto; Jenal Sodikin; M R Pratama; I R Ramadhani
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2097

Abstract

This research aims to design a decomposing blade, sieving system, and test machine products. The method for completing coconut fiber processing machines consists of three stages, namely the design and production process stages, as well as machine product testing. This research produces the following data, namely the design of the untangling knife which is a combination of the functions of the coir untangling knife for random and woven results. Calculation of the equilibrium moment on the shaft obtained a value of ???????????? is 28.68 N and the reaction at point A was ???????????? is 28.32 N, with the diameter of the shaft used in the coconut fiber sieving machine transmission system being Ø28 mm. Fiber uniformity is obtained from twice decomposition processes, whereas the level of fiber/powder uniformity is influenced by the long sieving process time and also the high rotational speed of the sieve.
Peningkatan Produktivitas Peternak Kambing Melalui Inovasi Pakan Fermentasi dan Manajemen Kesehatan Ternak pada KUB Berkah Lestari Jenal Sodikin; Unggul Satria Jati; Ari Kristiningsih; Khoeruddin Wittriansyah
Madani : Indonesian Journal of Civil Society Vol. 8 No. 1 (2026): Madani : Februari 2026
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/madani.v8i1.3151

Abstract

Livestock management has a strategic role in Indonesia, especially in goat farming, which is widely developed by local communities. However, the livestock feed currently used is still not processed effectively because it mainly consists of fresh green grass and is highly dependent on seasonal conditions. This situation can affect animal growth and the quality of goat production. Therefore, innovation in feed processing and improvement of product quality management are urgently needed. The purpose of this community service program is to implement fermented feed innovation and provide training on livestock health management for farmer groups. The implementation method includes counseling, training, demonstration of fermented feed production, training on sanitation and animal health management, and monitoring for six weeks. The program results show an increase in livestock weight by 19.1%, a reduction in feed costs by 24.1%, an improvement in feed conversion efficiency (FCR) by 21%, and an increase in farmers’ income by 29.2%. This program has proven to be effective in improving livestock productivity and supporting the sustainable welfare of farmers.
PERANCANGAN MESIN RICE TRANSPLANTER UNTUK PADI JENIS JAJAR LEGOWO MENGGUNAKAN METODE VDI 2222 Jetma Sabilla Sabilla; Nur Akhlis Sarihidaya Laksana; Jenal Sodikin; Ulikaryani; Unggul Satria Jati; Ghia Pisti Cikarge
Accurate: Journal of Mechanical Engineering and Science Vol. 7 No. 1 (2026): April 2026
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/apcv6z23

Abstract

Agricultural mechanization is a key strategy for boosting rice cultivation productivity while addressing labor shortages in the agricultural sector. However, most rice transplanters used in Indonesia are imported products that do not fully align with local paddy field characteristics and entail relatively high investment costs. This study aims to analyze the design process of a rice transplanter tailored for the jajar legowo planting system, utilizing the VDI 2222 method and SolidWorks-based 3D modeling. The analysis covered user requirements, design concept selection, machine dimensions, seedling tray configuration, the *jajar legowo* planting system, and material selection. The results indicate that the optimal design concept features a six-row planting configuration with a frame size of 1085 mm × 1472.6 mm, six seedling trays measuring 218 mm × 600 mm, and a material combination of galvanized steel and stainless steel—balancing structural strength, corrosion resistance, ease of manufacturing, and cost-efficiency. Implementing the jajar legowo system with a planting distance of approximately 20 cm is considered conducive to planting efficiency and compatible with rice cultivation practices in Indonesia. Overall, the design process yielded a rice transplanter model with the potential to be developed into a functional prototype, serving as a more economical local alternative that meets the specific needs of Indonesian farmers.
Studi Potensi Pembangkit Listrik Tenaga Bayu (PLTB) di Pantai Teluk Penyu Cilacap Menggunakan Analisis Distribusi Weibull Ulikaryani Ulikaryani; Agus Santoso; Bayu Aji Girawan; Radhi Ariawan; Unggul Satria Jati; Jenal Sodikin; Ari Kristiningsih
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 5 No. 2 (2026): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v5i2.5092

Abstract

The ever-increasing demand for electrical energy drives the utilization of renewable energy as a sustainable alternative source. Wind energy is one such potential renewable energy source. As a region situated on the southern coast of Java, Cilacap Regency possesses relatively stable wind characteristics, making it a promising location for the development of wind power plants. This study aims to analyze the wind energy potential in the Cilacap region using the Weibull distribution. The Weibull method was employed to determine the shape parameter (k) and scale parameter (c) based on wind speed data. The analysis results indicate an average wind speed of 6.225 m/s in the Cilacap region especially Teluk Penyu Beach, with Weibull parameters of k = 2.972 and c = 6.973 m/s. These values ​​reflect wind characteristics that are relatively stable and favorable for the development of small- to medium-scale wind power plants. The calculated wind power density (WPD) indicates that the coastal area of ​​Cilacap is suitable for harnessing wind energy as an alternative energy source.
UJI FUNGSI DAN KALIBRASI SENSOR WATER FLOW YF-S201 BERBASIS ARDUINO UNO PADA MESIN PENJERNIH AIR SUNGAI Aziz Adela Rashad; Ulikaryani; Bayu Aji Girawan; Radhi Ariawan; Jenal Sodikin; Hety Dwi Hastuti
Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 3 No. 2 (2023): Juli : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/teknik.v3i2.1850

Abstract

Semi-automatic water purification machines are urgently needed by the people around the Sitopong river, Cilacap Regency. Required application and testing of the YF-S201 type water flow sensor based on Arduino Uno. This is done so that the application of the water speed sensor in the river water purification machine can be maximized. The research method used is a literature study related to Arduino Uno and conducting experiments. The experiments were carried out in the form of testing the water flow velocity sensor, carrying out the process of calibrating the water flow sensor. Sensor testing was carried out 10 times after calibration. Based on the calibration results, an average volume of 329 ml was obtained from the desired volume of 330 ml so that an error of 0.3% was obtained. Whereas at the desired volume of 600 ml, the average volume of the calibration results is 598 ml, it can be seen that an error of 0.3% is obtained at a volume of 600 ml. Function test on the water filling process with 10 trials obtained an accuracy of 99.6% for a 330 ml volume bottle and 99.6 ml for a 600 ml volume bottle.
Co-Authors Agus Santoso Ari Kristiningsih Aziz Adela Rashad Bayu Aji Girawan Fadlilah, Ilma Ghia Pisti Cikarge Hety Dwi Hastuti I R Ramadhani Jetma Sabilla Sabilla Khoerudin Wittriansyah M R Pratama Nur Akhlis Sarihidaya Laksana Nurlinda Ayu Triwuri Priyanto, Kaleb Radhi Ariawan Roy Aries Permana Tarigan Theresia Evila PSR Ulikaryani, Ulikaryani Unggul Satria Jati Wittriansyah, Khoeruddin