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All Journal Infotekmesin Accurate: Journal of Mechanical Engineering and Science Karunia: Jurnal Hasil Pengabdian Masyarakat Indonesia
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.
Co-Authors Ari Kristiningsih Fadlilah, Ilma Hety Dwi Hastuti I R Ramadhani 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