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All Journal Rekayasa Mesin JURNAL INSTEK (Informatika Sains dan Teknologi) JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Infotekmesin Jurnal Riset Teknologi Pencegahan Pencemaran Industri Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE) INJECTION: Indonesian Journal of Vocational Mechanical Engineering
Wicaksono, Dhimas
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EFFECT VARIATION OF TEMPERATURE AND STIRRING SPEED ON THE BENDING TEST OF FIBERGLASS FIBER COMPOSITE MATERIALS USING THE VACUUM ASSISTED RESIN INFUSION (VARI) METHOD Setiawan, Ferry; Sakti , Faras Bimo; Wicaksono, Dhimas
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1469

Abstract

This study aims to investigate the effect of temperature with constant agitation at 164 rpm on the fabrication of composite materials using the Vacuum Assisted Resin Infusion (VARI) method. In this research, composite materials were made with a polyester resin matrix reinforced with fiberglass. The challenge in the VARI process, which is the difficulty in controlling the viscosity of the solution when infused into the fibers, was addressed by using a stirrer in the feed resin tank. Heating was intended to increase the surface tension of the resin, allowing it to better penetrate the fibers. The variations used were stirring at a speed of 164 rpm and heating temperature variations of 28°C, 35°C, and 50°C. By stirring and heating the resin and catalyst solution, it is expected to achieve a more uniform viscosity, resulting in better composite material compared to methods without heating and without mixing. Based on the test results, the highest average bending strength was found in the specimen stirred with a mixer at 35°C, with a value of 359.91 MPa. The lowest average bending strength was found in the specimen with a temperature variation of 28°C, with a value of 133.7 MPa, and the bending strength at the temperature variation of 50°C was 348.81 MPa. The impact on bending strength is due to the presence of voids, which are gas or air trapped within the specimen structure. This is evidenced by micrographic analysis and density measurements, where the 28°C variation had the lowest density of 2.01 gr/cm3, while the 35°C and 50°C variations had the same density of 2.41 gr/cm3.
PENGUJIAN GESER PADA INTERFACE BONDING JOINT HIBRID AL-CFRP DENGAN VARIASI GEOMETRI PERMUKAAN AL assidiq, maulana hasbi; Wicaksono, Dhimas; Setiawan, Ferry
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1208

Abstract

Composites are a combination of two or more materials and each has its own properties and characteristics and produces one material with stronger properties than the supporting material. In this study using aluminum, carbon fiber and combined using epoxy resin. This research will produce new material products with variations without surface treatment (TST), HTG, HDG, and 2HDG. The manufacturing process in this study uses the hand lay up method and continues with the vacuum bagging method and is pressed with an iron plate. Shear testing was carried out with the aim of knowing the strength of the specimen against the applied shear force. The results obtained after shear testing of the three TST variations obtained the highest shear stress value in the TST 1 variation of 3.21 MPa and a maximum load of 1141.10 N. Then in the three HTG specimens obtained the highest shear stress value in HTG 1 of 5.54 MPa and 1768.57 N. Then in the three HDG specimens obtained the highest shear stress value in HTG 1 of 5.54 MPa and 1768.57 N. Then in the three HDG specimens, the highest shear value was obtained in HDG 2 of 3.00 MPa and 1005.99 N. Then in the three 2HDG specimens, the highest value was obtained in 2HDG 1 of 2.94 MPa and 1074.59 N. From the test results it is found that the specimen with the HTG variation has a higher shear stress value than the other variations. The type of failure in the kosongan and HTG variation specimens experienced a type of adhesive shear failure and in the HDG and 2HDG variations experienced cohesive shear failure.
PEMBUATAN DIES UAV J-1B DENGAN MOLD PENGECORAN METODE SAND CASTING Wicaksono, Dhimas; Setiawan, ferry; Aditya Mahendra, Dimas; Satrya Buana, Allan; Qayyum, A; Endy Aditya, Virgiawan; Romadhon, Doni
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1219

Abstract

Rapid technological advances, especially in the field of Unmanned Aerial Vehicles (UAV), have presented new challenges in the development of precision components. UAV, which can operate remotely or autonomously, require highly accurate components to ensure optimal performance and reliability. One important aspect in making UAV components is the casting process, where dimensional errors can affect the final performance of the UAV. This research aims to design and produce J-1B UAV Dies components using the sand casting method using used aluminum material. The research methodology carried out included experiments and observations, starting with 3D design using the SolidWorks application and continuing with making aluminum molds. During the casting process, it is known that the component size experiences significant shrinkage due to cooling of the molten metal, with a shrinkage percentage reaching 5.40% in the body section and 2.11% in the tail section. This shrinkage occurs due to changes in temperature which affect the volume of the metal when it hardens, as well as other factors such as removal of mold patterns and finishing processes which affect the final dimensions of the product. Variability in metal melting temperatures and casting techniques also contributes to product dimensional inaccuracies. This research emphasizes the importance of careful planning and strict quality control to minimize size differences and ensure conformity to the initial design. This research is fully funded by the STTKD campus, which is expected to equip the facilities and infrastructure for STTKD cadets in learning materials and support the development of UAV technology in the future.
DESAIN DAN MANUFAKTUR BOX VACUUM FORMING DENGAN FINITE ELEMENT ANALYSIS Nurdiana, Yuda; Wicaksono, Dhimas; Setiawan, Ferry
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 11 No 1 (2025): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v11i1.1129

Abstract

One of the manufacturing techniques often used in industry to produce various forms of plastic components. The research stage begins with designing a box using Solidworks software, Analysis carried out on the vacuum forming box structure using finite element analysis. The results obtained are in the form of maximum stress that occurs, displacement and safety factor. The vacuum forming box structure is also subjected to a load of 51.878 N or equivalent to 5.2901 kg. The location of the force given to the vacuum forming box structure with a vertical force direction downwards, the displacement that occurs in the vacuum forming box structure with a force of 51.878 N. The largest displacement occurs at the top center of the vacuum forming box surface with a displacement of 0.75 mm. This happens because in that section the area is free or does not have a support in the middle. the safety factor value that occurs in the vacuum forming box structure with a force of 51.878 N. The safety factor value used in this analysis is 1.5. The safety factor value obtained in the vacuum box structure is 1.8. The safety factor value requirement used, then based on the data obtained, the vacuum box structure using plywood material is safe in receiving a load of 51,878 N, because the FOS value obtained is greater than the FOS standard used. In testing the tool using PET plastic with a temperature of 100 ℃ and a time of 30 seconds, the testing process begins with the preparation of the appropriate PET plastic and is placed on the part or mold of the tool to be tested. The temperature of the tool is heated to 100 ℃.
ANALYSIS AND SOLUTIONS FOR DECREASING THE EFFECTIVENESS OF THE AIR CONDITIONING SYSTEM ON THE BOEING 737-900 ER Ristiawan, Bayu Ristiawan; Wicaksono, Dhimas
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 11 No 1 (2025): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v11i1.1352

Abstract

The air conditioning system on the Boeing 737-900 ER plays a crucial role in maintaining passenger and cabin crew comfort. However, a decrease in the system’s effectiveness has led to discomfort during flights. This study aims to identify the factors causing the decline in the air conditioning system’s effectiveness and provide technical recommendations to enhance its performance. The research method used is Root Cause Analysis (RCA) with a Failure Mode and Effects Analysis (FMEA) approach. The findings indicate that the primary causes of decreased AC system effectiveness are blockages in the heat exchanger due to debris accumulation and oil contamination, as well as damage to the Air Cycle Machine (ACM), including worn-out turbine blades and bearings. To address these issues, preventive maintenance procedures, routine inspections, and the use of an air conditioning cart while the aircraft is on the ground are recommended to maintain cabin comfort.
Pemanfaatan Aplikasi Google Form dalam Kegiatan Serbuan Vaksinasi COVID-19 Berbasis Online di Kabupaten Klaten Wicaksono, Dhimas; Setiawan, Ferry
JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Vol 6, No 1 (2022)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jpp-iptek.2022.v6i1.3017

Abstract

Pengabdian kepada masyarakat ini dilakukan dengan tujuan memberikan solusi kepada panitia vaksinasi COVID-19 di Kabupaten Klaten. Pada awal pelaksanaan vaksin yang dilakukan secara konvensional mempunyai banyak kendala terutama pada lamanya waktu pendaftaran, validasi, dan penumpukan antrian peserta vaksinasi. Solusi yang diterapkan adalah dengan pemanfaatan aplikasi berbasis Google Form sebagai platform dalam pelaksanaan pendaftaran kegiatan Serbuan Vaksinasi COVID-19 yang dilaksanakan di Gedung Saroga KONI Kabupaten Klaten. Google Form adalah sebuah fitur dari Google yang digunakan sebagai formulir pendaftaran, kuesioner online, atau merencanakan sebuah acara. Pelaksanaan pengabdian ini terdiri dari dua kegiatan utama, yang pertama adalah pelatihan pembuatan form pendaftaran online menggunakan Google Form. Peserta akan otomatis mendapatkan nomor antrian dan kartu vaksinasi secara online yang langsung terkirim saat selesai pendafataran serta yang kedua adalah pelaksanaan kegiatan Serbuan Vaksinasi COVID-19. Dari beberapa wawancara dengan peserta vaksinasi, hasil yang didapatkan dari implementasi sistem form registrasi yang dibuat adalah sangat mudah digunakan dan peserta tidak terjadi kerumunan dalam vaksinasi karna jadwal dan kartu vaksinasi bisa dipantau dan dicetak menggunakan genggaman tangan (handphone) tanpa bingung ke mana pengambilan kartu bisa dilakukan. Bagi panitai pelaksanan vaksinasi, dengan menggunakan aplikasi berbasis Google Form juga memberi kemudahan pada pendataan peserta, validasi, penyimpanan data, dan mempercepat pelaksanaan kegiatan Serbuan Vaksinasi COVID-19.
Composite Material Impact Test With Resin Matrix And Kenaf Fiber Reinforcement Using The Hand Lay Up Method Setiawan, Ferry; Anhar, Muh; Akmal, Akmal; Wicaksono, Dhimas
Journal of Applied Mechanical Engineering and Renewable Energy Vol 3 No 1: Februari2023
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jamere.v3i1.400

Abstract

The purpose of this study was to obtain the results of impact testing on composite material with the arrangement of kenaf fibers in woven with volume variations of 0%, 10%, 20%, 30%, 40%, and 50%. The value obtained from impact testing with 0% fiber variation has an average energy absorption yield of 1.730623009 J and an average impact price of 0.01273547 J/mm², 10% fiber has an average absorption energy yield of 1.468150063 J and an average yield of 1.468150063 J The average impact price is 0.01080396 J/mm², 20% fiber has an average energy absorption yield of 1.730623009 J and an average impact price is 0.01273547 J/mm², 30% fiber has an average energy absorption yield of 1.214516698 J and the average yield is 1.214516698 J The average impact price is 0.008937499 J/mm², 40% fiber has an average energy absorption yield of 1.993095955 J and an average impact price is 0.01466698 J/mm², 50% fiber has an average energy absorption yield of 2.264328531 J and an average yield of 2.264328531 J Average Impact Price 0.016662952 J/mm². This composite material is made with epoxy resin as a binder and kenaf fiber as a reinforcing material. The method used is hand lay-up and specimen testing using charpy impact. After testing, a micro photo will be taken to see the best specimen fracture results.
Analisis Intensitas Turbulensi Terhadap Kestabilan Kecepatan Angin Test Section pada Struktur Wind Tunnel Arif Pratama, Riza; Ikhsan, Muhammad; Wicaksono, Dhimas; Rieza, M. Safiq; Zainal Abidin , Munir
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2511

Abstract

Wind tunnels in aerodynamic testing always have very large sizes to avoid high turbulence intensity. Turbulence intensity analysis is used to determine the size of a smaller wind tunnel to be more efficient in limited space. The use of epoxy fiber resin material is because lighter than aluminum with a thickness of 5mm. The purpose of the study was to produce a wind tunnel with a small size with low turbulence intensity and minimize large manufacture costs. The method used is constructive to analyze the wind tunnel design in determining the maximum wind flow speed at test section does not exceed the turbulence intensity limit. The results of the analysis showed that the wind tunnel structure design has the ability to receive an inlet wind flow of 5 m / s with a maximum wind flow speed at the test location of 10.7 m / s. The wind tunnel design cannot exceed the maximum wind flow speed at the test section because it will produce turbulence intensity above 5% which affects the test result.
MAINTENANCE ACTIVITY PLANNING FOR FUEL SYSTEM COMPONENTS ON KT-1B AIRCRAFT USING RELIABILITY METHODS Adiksa, Ekklesia Christian; Setiawan, Ferry; Wicaksono, Dhimas; Anhar, Muh
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 3 No 2 (2023)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v3i2.1776

Abstract

This research aims to prevent unscheduled maintenance by determining the optimal maintenance time to plan preventive maintenance on the fuel system of the KT-1B aircraft. Fuel System components include Engine Driven Pump, Fuel Control Unit. The methods used are Fault Tree Analysis (FTA), Failure Mode and Effect Analysis (FMEA), and Weibull Distribution. This method is to determine the factors causing failure, calculate the failure rate, and system reliability. Factors causing fuel system failure are influenced by age, damaged seals, vibration. The level of reliability of the Fuel System decreases with the length of use. Where the system will experience a critical period when it reaches operational time, namely engine driven pump = 1010 hours with a reliability value of 70%, fuel control unit = 1637 hours with a reliability value of 70.1%. After knowing the critical mass limit of the components, Preventive Maintenance planning will be carried out on the parts and components that cause failure, namely by cleaning the engine driven pump components and the fuel control unit by periodically checking the parts on the KT-1B aircraft.
PENGEMBANGAN SISTEM PENILAIAN DIGITAL BERBASIS ARDUINO DAN MICROSOFT VISUAL STUDIO UNTUK MENINGKATKAN AKURASI PENILAIAN PADA KOMPETISI TAEKWONDO Wicaksono, Dhimas; Luqman Bukhori, M; Setiawan, Ferry
Jurnal INSTEK (Informatika Sains dan Teknologi) Vol 10 No 1 (2025): APRIL
Publisher : Department of Informatics Engineering, Faculty of Science and Technology, Universitas Islam Negeri Alauddin, Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/instek.v10i1.55964

Abstract

Penelitian ini mengembangkan sistem penilaian digital untuk pertandingan Taekwondo dengan menggunakan Arduino Uno sebagai mikrokontroler dan Microsoft Visual Studio untuk pengembangan perangkat lunak, bertujuan untuk meningkatkan akurasi dan efisiensi penilaian pertandingan. Sistem ini memanfaatkan sensor dan joystick untuk penilaian real-time, yang mengurangi ketergantungan pada penilaian subjektif oleh juri. Metode yang digunakan melibatkan integrasi perangkat keras, yaitu mikrokontroler Arduino Uno, dengan modul Bluetooth HC-05 untuk komunikasi nirkabel, serta aplikasi desktop untuk menampilkan hasil penilaian. Hasil penelitian menunjukkan bahwa sistem ini mampu memberikan akurasi penilaian hingga 98% dan respons sistem dalam mencatat skor rata-rata hanya 250 ms setelah tombol ditekan. Pengujian juga menunjukkan bahwa sistem dapat secara efektif mengurangi subjektivitas penilaian konvensional dan menyediakan visualisasi real-time dari skor dan lokasi serangan pada tubuh atlet. Implikasi temuan ini menyarankan bahwa teknologi ini dapat diadopsi secara luas untuk meningkatkan transparansi dan objektivitas dalam kompetisi Taekwondo dan olahraga beladiri lainnya.
Co-Authors Adiksa, Ekklesia Christian Aditya Mahendra, Dimas Akmal Akmal assidiq, maulana hasbi Chalik, Faturrahman Endy Aditya, Virgiawan Ferry Setiawan Fery Setiawan Laksana, Lintang Bayu Adi Luqman Bukhori, M Muh Anhar Muhammad Ikhsan Nurdiana, Yuda Qayyum, A Rieza, M. Safiq Ristiawan, Bayu Ristiawan Riza Arif Pratama Romadhon, Doni Sakti , Faras Bimo Satrya Buana, Allan Zainal Abidin , Munir