Articles
Analisa Kerusakan Transmisi Otomatis dengan Metode Failures Mode and Effects Analysis (FMEA) dan Logic Tree Anaysis (LTA)
Sodikin, Jenal;
Satria Jati, Unggul;
perdana wanti, linda
Accurate: Journal of Mechanical Engineering and Science Vol. 3 No. 1 (2022): April 2022
Publisher : Politeknik Negeri Cilacap
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DOI: 10.35970/accurate.v3i1.1510
The power transfer system is an inseparable part of a vehicle unit, this component functions as a power source from the engine, increasing the moment generated by the engine according to the needs of the load and road conditions and reversing the rotation. Type As the age of the vehicle, the transmission it uses will be damaged or even fail to function, most automatic transmissions start having problems after the vehicle is used above 100,000 km or on vehicles that are not used in accordance with the provisions and do not carry out maintenance procedures properly, the automatic transmission is damaged. could come sooner. Based on the implementation of the Failures Mode Effects Analysis (FMEA) method which is used to evaluate components in a system by examining the potential failure model to determine the impact that will occur on the component or work system, it is found that the highest Risk Piority Number (RPN) is found in the Seal component. Piston Matic 450, Multiple Clutch/Clutch Pack 360, Selenoid Valve 324. Each potential failure model is classified based on the impact it can have on the success of the system or on user safety by dividing the categories using Logic Tree Analysis (LTA) with the results of most components automatic transmission is included in the type B failure (Outage Problem) where the component causes failure of all or part of the system. Based on the RPN value, the right maintenance is Predictive Maintenance.
Desain dan Perancangan Alat Welding Holder untuk Pengelasan Pelat pada Las GMAW
Kurniawan, Ipung;
Sodikin, Jenal;
Pujono;
Setia Pribadi, Joko;
Santoso, Agus
Accurate: Journal of Mechanical Engineering and Science Vol. 4 No. 1 (2023): April 2023
Publisher : Politeknik Negeri Cilacap
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DOI: 10.35970/accurate.v4i1.1870
One of the metal welding processes required by the manufacturing industry is gas arc welding (GMAW). The welding process that is capable of transmitting large amounts of heat at high speeds is gas electric welding or GMAW (Gas Metal Arc Welding). The design mechanism for the movement of the X and Y axes in the development of GMAW welding holders uses the stages of finding ideas, studying literature, identifying problems, designing, making tools and testing machines. The purpose of this study was to design a mechanism for moving the X and Y axes in the development of an automatic GMAW torch holder machine and to calculate the machine elements in the development of an automatic GMAW torch holder machine. The process of designing and constructing the movement of the X and Y axes in the development of an automatic GMAW welding torch holder machine is carried out with a design procedure that is used as a reference in solving problems. The track shaft uses chrome steel with a diameter of 25 mm and a length of 800 mm, Linear bearings use type SCS25UU with an inner diameter of 25 mm, Linear rail shafts use aluminum alloy material with a diameter of 25 mm which is used to support the end of the track shaft, Ballscrew uses the SFU 2005 type with a size of 3/4 inch which is equipped with a ballscrew nut and also a nut housing, Bearing block uses a UCP type with a diameter of 20 mm, Flexible coupling measuring 5 mm to 10 mm is used to connect the drive screw with the stepper motor, The stepper motor is used as the main power to drive the drive screw type Nema 17 (17HD48002H-22B) with the specifications Step Angle: 1.8o, Rated Current: 1.5 Ampere, Voltage : 2.7V.
PERENCANAAN KAMPUNG PRODUKTIF SEPRIH CILACAP UTARA MELALUI PENDAMPINGAN PENULISAN PROPOSAL SPONSORSHIP
Tarigan, Roy;
Ulikaryani, Ulikaryani;
Ariawan, Radhi;
Laksana, Nur Akhlis Sarihidaya;
Sodikin, Jenal
Abdi Masya Vol 4 No 1
Publisher : Pusat Penelitian dan Pengabdian Masyarakat
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DOI: 10.52561/abma.v4i1.251
Hampir seluruh masyarakat tidak memiliki kesiapan dalam menghadapi situasi pandemi, secara khusus masyarakat Kampung Seprih 005/001 Kebonmanis. Pembatasan aktivitas mengakibatkan menurunnya kegiatan perdagangan warga. Pengetahuan yang terbatas dan pengalaman yang belum memadai, menghambat perkembangan usaha dagang warga yang notabene penghasilan setiap bulannya tidak tetap. Berdasarkan hal tersebut, solusi yang dibutuhkan untuk peningkatan perekonomian warga adalah kegiatan kewirausahaan bersama di lingkungan Kampung Seprih. Kegiatan wirausaha bersama ini dapat terlaksana dengan memanfaatkan lahan warga yang belum produktif. Tujuan kegiatan pengabdian ini adalah menggambarkan potensi usaha mandiri Kampung Seprih menjadi Kampung Produktif Seprih dan memberikan pelatihan serta pendampingan penulisan proposal sponsorship kepada warga secara khusus GEMA (Gerakan Pemuda Nol Lima) Kampung Seprih. Kampung Produktif Seprih digambarkan pada denah pekerjaan yang terbagi menjadi 4 area, yaitu lahan produksi, lahan peternakan, lahan pertanian, dan lahan ruang baca (perpustakaan warga Kampung Seprih). Kegiatan pelatihan dan pendampingan penulisan proposal sponsorship dilaksanakan selama 12 kali pertemuan dan diikuti oleh pengurus dan anggota GEMA. Proposal sponsorship dikirimkan ke PFmuda 2022 melalui aplikasi yang tersedia pada tanggal 18 Mei 2022 pukul 19.44 WIB. Harapan dari Penulis dan tim beserta GEMA Kampung Seprih adalah proposal tersebut lolos dan didanai kegiatan selanjutnya. Namun jika hasilnya belum sesuai rencana, maka GEMA dapat mengajukan proposalnya ke instansi lain dengan bekal pelatihan yang sudah diterima.
Peningkatan Pengetahuan Peternak Kambing Melalui Penyuluhan Pemeliharaan Ternak di Desa Banjarwaru
Pramita, Ayu;
Fadlilah, Ilma;
Syafirullah, Lutfi;
Tarigan, Roy Aries Permana;
Ulikaryani, Ulikaryani;
Sodikin, Jenal
Nuansa Akademik: Jurnal Pembangunan Masyarakat Vol. 9 No. 2 (2024)
Publisher : Lembaga Dakwah dan Pembangunan Masyarakat Universitas Cokroaminoto Yogyakarta (LDPM UCY)
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Many farmers Banjarwaru complain that goat growth is less than optimal, and low productivity. Based on these problems, this community service program aims to ensure that farmers understand and are able to manage goat farms according to standards independently. The method used in this community service program is to look at achievement indicators from socialization activities and cage management training and animal health recording. Based on the achievement indicators from this activity, it shows that 100% of the 20 breeders understand livestock management, housing, and the correct way to record livestock health. A total of 15 people have been able to use maintenance tools and techniques for handling diseases infected by livestock. Based on the results of the achievement indicators obtained from this service activity, it was concluded that breeders in Banjarwaru Village knew and understood the correct way to raise goats and were able to carry out maintenance activities according to good standards.
Karakteristik Fisik Selulosa Pelepah Nipah (Nypa fruitcan) dengan Hidrolisis Asam Kuat
Kristiningsih, Ari;
Wittriansyah, Khoeruddin;
Hastuti, Hety Dwi;
Sodikin, Jenal
JURNAL AGROINDUSTRI HALAL Vol. 11 No. 1 (2025): Jurnal Agroindustri Halal
Publisher : Universitas Djuanda
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DOI: 10.30997/jah.v11i1.10789
Nypa palm (Nypa fruticans) possesses various potential uses, one of which is as a source of cellulose. Cellulose can be a raw material in industries such as paper production, pharmaceuticals, and biomaterials. However, the fiber of the nipa palm frond tends to be brittle and fragile. Reducing the particle size of the fiber can enhance its mechanical strength, which can be achieved through acid hydrolysis using a 10% strong acid solution. This study aims to characterize the cellulose extracted from nipa palm fronds after acid hydrolysis. The alpha-cellulose content obtained was 39.626%, with a lignin content of 18.633%. Morphological characterization revealed that the cellulose particles ranged from 615.814 μm to 840.719 μm in size. Scanning Electron Microscope–Energy Dispersive X-ray (SEM-EDX) analysis showed that the fibers were elongated with irregular lengths and were composed primarily of carbon and oxygen elements. Fourier Transform Infrared (FTIR) spectroscopy identified the presence of O–H, C–H, and C–O functional groups as the main components of cellulose, along with C=O groups associated with lignin. These findings indicate that acid hydrolysis effectively reduces the particle size of nipa palm frond fibers and enhances their physical characteristics, making them more suitable for advanced material applications.
Karakteristik Struktur Kristal In2Se3 Hasil Preparasi Dengan Metode Bridgman
Ulikaryani, Ulikaryani;
Sodikin, Jenal;
Akhlis Sarihidaya Laksana, Nur;
Satria Jati, Unggul;
Kristiningsih, Ari
Infotekmesin Vol 14 No 1 (2023): Infotekmesin: Januari, 2023
Publisher : P3M Politeknik Negeri Cilacap
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DOI: 10.35970/infotekmesin.v14i1.1753
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.
Desain Pisau Pengurai dan Sistem Pengayak serta Uji Produk Mesin Pengolah Sabut Kelapa sebagai Bahan Mentah Komposit
Tarigan, Roy Aries Permana;
Priyanto, Kaleb;
Sodikin, Jenal;
Pratama, M R;
Ramadhani, I R
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap
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DOI: 10.35970/infotekmesin.v15i1.2097
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 ð‘…ð‘‰ðµ is 28.68 N and the reaction at point A was ð‘…ð‘‰ð´ 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.
Analisa Kerusakan Transmisi Otomatis dengan Metode Failures Mode and Effects Analysis (FMEA) dan Logic Tree Anaysis (LTA)
Sodikin, Jenal;
Satria Jati, Unggul;
perdana wanti, linda
Accurate: Journal of Mechanical Engineering and Science Vol. 3 No. 1 (2022): April 2022
Publisher : Politeknik Negeri Cilacap
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DOI: 10.35970/accurate.v3i1.1510
The power transfer system is an inseparable part of a vehicle unit, this component functions as a power source from the engine, increasing the moment generated by the engine according to the needs of the load and road conditions and reversing the rotation. Type As the age of the vehicle, the transmission it uses will be damaged or even fail to function, most automatic transmissions start having problems after the vehicle is used above 100,000 km or on vehicles that are not used in accordance with the provisions and do not carry out maintenance procedures properly, the automatic transmission is damaged. could come sooner. Based on the implementation of the Failures Mode Effects Analysis (FMEA) method which is used to evaluate components in a system by examining the potential failure model to determine the impact that will occur on the component or work system, it is found that the highest Risk Piority Number (RPN) is found in the Seal component. Piston Matic 450, Multiple Clutch/Clutch Pack 360, Selenoid Valve 324. Each potential failure model is classified based on the impact it can have on the success of the system or on user safety by dividing the categories using Logic Tree Analysis (LTA) with the results of most components automatic transmission is included in the type B failure (Outage Problem) where the component causes failure of all or part of the system. Based on the RPN value, the right maintenance is Predictive Maintenance.
Desain dan Perancangan Alat Welding Holder untuk Pengelasan Pelat pada Las GMAW
Kurniawan, Ipung;
Sodikin, Jenal;
Pujono;
Setia Pribadi, Joko;
Santoso, Agus
Accurate: Journal of Mechanical Engineering and Science Vol. 4 No. 1 (2023): April 2023
Publisher : Politeknik Negeri Cilacap
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DOI: 10.35970/accurate.v4i1.1870
One of the metal welding processes required by the manufacturing industry is gas arc welding (GMAW). The welding process that is capable of transmitting large amounts of heat at high speeds is gas electric welding or GMAW (Gas Metal Arc Welding). The design mechanism for the movement of the X and Y axes in the development of GMAW welding holders uses the stages of finding ideas, studying literature, identifying problems, designing, making tools and testing machines. The purpose of this study was to design a mechanism for moving the X and Y axes in the development of an automatic GMAW torch holder machine and to calculate the machine elements in the development of an automatic GMAW torch holder machine. The process of designing and constructing the movement of the X and Y axes in the development of an automatic GMAW welding torch holder machine is carried out with a design procedure that is used as a reference in solving problems. The track shaft uses chrome steel with a diameter of 25 mm and a length of 800 mm, Linear bearings use type SCS25UU with an inner diameter of 25 mm, Linear rail shafts use aluminum alloy material with a diameter of 25 mm which is used to support the end of the track shaft, Ballscrew uses the SFU 2005 type with a size of 3/4 inch which is equipped with a ballscrew nut and also a nut housing, Bearing block uses a UCP type with a diameter of 20 mm, Flexible coupling measuring 5 mm to 10 mm is used to connect the drive screw with the stepper motor, The stepper motor is used as the main power to drive the drive screw type Nema 17 (17HD48002H-22B) with the specifications Step Angle: 1.8o, Rated Current: 1.5 Ampere, Voltage : 2.7V.
Karakteristik Fisikokimia Serbuk Tinta Cumi yang Dikeringkan dengan Oven
Kristiningsih, Ari;
Wittriansyah, Khoeruddin;
Sodikin, Jenal;
Fadlilah, Ilma
Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 18, No 2 (2023): Desember 2023
Publisher : Politeknik - Ahli Usaha Perikanan
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DOI: 10.15578/jpbkp.v18i2.942
Tinta cumi merupakan limbah sampingan dari cumi-cumi yang belum termanfaatkan dengan baik. Pemanfaatan tinta cumi masih terbatas pada produk segar, yang mengakibatkannya tidak bisa disimpan dalam waktu yang lama. Sehingga diperlukan olahan lanjutan untuk memperpanjang masa simpan seperti dijadikan dalam bentuk serbuk. Tujuan penelitian ini adalah untuk mengetahui karakteristik fisikokimia tinta cumi yang telah diawetkan dalam bentuk serbuk. Metode penelitian yang digunakan pada penelitian ini adalah deskriptif eksploratif dengan melakukan pengamatan pada serbuk tinta cumi. Pengamatan dilakukan dengan melakukan analisis proksimat, analisis SEM-EDX dan analisis FT-IR. Kandungan lemak dan protein serbuk tinta cumi memiliki nilai lebih rendah dibandingkan dengan bagian tubuh lainya. Analisis SEM-EDX menunjukan bahwa serbuk tinta cumi memiliki bentuk yang tidak beraturan dengan unsur penyusun utama C, N dan O. Hasil analisis FT-IR menunjukan bahwa gugus fungsi yang terdapat di dalam serbuk tinta cumi adalah gugus fungsi fenolik (O-H) dan amina (N-H) yang berpotensi menjadi senyawa antibakteri dan juga antioksidan.Kata Kunci : ABSTRACTSquid ink is a byproduct of squid that has not been utilized properly. Despite its potential, the use of squid ink is still limited to fresh products, which means it cannot be stored for a long time. Therefore, further processing is needed to extend the shelf life, such as making it into powder form. The objective of this study is to determine the physicochemical characteristics of squid ink that has been preserved in powder form. The research method used is exploratory descriptive by observing the squid ink powder. Proximate analysis, SEM-EDX analysis, and FT-IR analysis were carried out to observe the powder. The fat and protein content of squid ink powder is lower compared to other body parts. SEM-EDX analysis shows that squid ink powder has an irregular shape with the main constituent elements of Carbon, Nitrogen, and Oxygen. The results of FT-IR analysis show that squid ink powder contains functional groups of phenolic (O-H) and amine (N-H), which have the potential to be an antibacterial compound and an antioxidant.