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All Journal Rotasi MEDIA KOMUNIKASI TEKNIK SIPIL TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Jurnal EECCIS Journal of ICT Research and Applications Conference SENATIK STT Adisutjipto Yogyakarta Angkasa: Jurnal Ilmiah Bidang Teknologi KACANEGARA Jurnal Pengabdian pada Masyarakat Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Scientific Journal of Mechanical Engineering Kinematika Community Development Journal: Jurnal Pengabdian Masyarakat International Journal of Innovation in Mechanical Engineering and Advanced Materials ENGAGEMENT: Jurnal Pengabdian Masyarakat Jurnal Inovasi Pengabdian Masyarakat Indonesian Journal of Aerospace
Okto Dinaryanto
Institut Teknologi Dirgantara Adisutjipto
Religion Aerospace Engineering Humanities Astronomy Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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Pengelolaan Pengiriman Logistik Melalui Pesawat Kargo Bagi UMKM Untuk Meningkatkan Ketahanan Ekonomi Haris Subarjo, Abdul; Prasetyo, Edi; Sudarmaji, Catur; Hermawan S, Dedet; Wahyu S, Djarot; Mauidzoh, Uyuunul; Dinaryanto, Okto
JUPNA: Jurnal Pengabdian Astina Vol 2 No 2 (2024): JIPM: Jurnal Inovasi Pengabdian Masyarakat
Publisher : CV. Astina Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55903/jipm.v2i2.175

Abstract

Pengelolaan pengiriman logistik melalui pesawat kargo dapat menjadi solusi efektif bagi UMKM dalam meningkatkan ketahanan ekonomi. Penelitian ini mengkaji implementasi pengiriman logistik melalui pesawat kargo bagi UMKM makanan ringan di Kabupaten Sleman. Metode yang digunakan meliputi persiapan, pelaksanaan, dan evaluasi kegiatan pengabdian masyarakat yang diikuti oleh 22 peserta. Hasil penelitian menunjukkan peningkatan pengetahuan peserta tentang pengelolaan logistik setelah dilakukan kegiatan pengabdian. Rata-rata peningkatan hasil pretest dan posttest mencapai 47.84%. Dengan adanya peningkatan pengetahuan logistik, UMKM diharapkan dapat meningkatkan kinerjanya dan berkontribusi lebih besar dalam perekonomian nasional.
Introduction of Information Technology to Agricultural Product Chips UMKM Abdul Haris Subarjo; Dedet Hermawan Setiabudi; Fajar Nugroho; Okto Dinaryanto; Mawar Kusumawardani
ENGAGEMENT: Jurnal Pengabdian Masyarakat Vol. 3 No. 4 (2024): Community Empowerment and Services
Publisher : Perkumpulan Dosen Fakultas Agama Islam Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58355/engagement.v3i4.126

Abstract

Agriculture contributes greatly to encouraging economic development, especially in countries that are highly dependent on this sector, such as Indonesia.  In economic development, great attention is paid to the agricultural sector and its related industries, which are often referred to as agro-industry. With the development of information technology, there are opportunities to develop MSMEs in the agricultural sector. In order for community service activity partners to gain knowledge about the use of information technology, this activity is needed. Community service activities are carried out using a presentation method by the presenter. Community service activities introducing information technology for MSMEs for agricultural products went well and according to plan. There was an increase in the knowledge of activity participants.
Analisis CFD Aliran Dua-Fasa Uap Air pada Pipa Geothermal Horisontal Kumolosari, Eli; Dinaryanto, Okto; Wibowo, Teguh; Setiabudi, Dedet Hermawan; Nugroho, Fajar; Pinandhita, Lazuardy Rahendra; Kurniawan, Freddy
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 17, No 1 (2025): Mei
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v17i1.2647

Abstract

Two-phase flow is a phenomenon that often found in various devices and fields, one of which is in the geothermal system. Two-phase flow parameters that are important to study include flow patterns, pressure drop, and water holdup. This study used the CFD method to obtain data on flow patterns, pressure drop, and water holdup in steam-water flow in horizontal pipes. Validation studies were conducted to obtain appropriate settings. The superficial velocities of steam and water were varied from 6-30 m/s and 0.05-0.1 m/s respectively. The results showed that the CFD results were in accordance with the experiments. Visually, the observed flow patterns were stratified-wavy flow and mist flow. Furthermore, the pressure drop and water holdup values obtained increased along with the increase in the JW value.
PENGENALAN TEKNOLOGI PENGOLAHAN PRODUK PERTANIAN KEPADA UMKM UNTUK MENINGKATKAN KETAHANAN EKONOMI PESERTA Setiabudi, Dedet Hermawan; Subarjo, Abdul Haris; Kusumawardani, Mawar; Nugroho, Fajar; Dinaryanto, Okto; Santoso, Djarot Wahju
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 6 No. 4 (2025): Volume 6 No 4 Tahun 2025
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v6i4.47998

Abstract

Pertanian berkontribusi besar dalam mendorong pembangunan ekonomi, terutama di negara-negara yang sangat bergantung pada sektor ini, seperti Indonesia. Dalam pembangunan ekonomi, perhatian besar diberikan kepada sektor pertanian dan industri terkaitnya, yang sering disebut sebagai agroindustri. Dengan perkembangan teknologi pengolahan produk pertanian, terdapat peluang pengembangan Usaha Mikro, Kecil, dan Menengah (UMKM) di sektor pertanian. Agar mitra kegiatan pengabdian masyarakat mendapatkan pengetahuan tentang pemanfaatan teknologi pengolahan produk pertanian, pemilihan bahan baku produk pertanian yang berkualitas maka kegiatan ini diperlukan, diharakan dengan peningkatan pengetahuan peserta dapat menerapkan ilmunya dan meningkatkan penghasilan sehingga meningkat ketahanan ekonominya. Kegiatan pengabdian masyarakat dilakukan dengan metode presentasi oleh pemateri. Kegiatan pengabdian masyarakat yang memperkenalkan teknologi pengolahan produk pertanian dan pemilihan produk bahan baku produk pertanian yang berkualitas bagi UMKM untuk produk pertanian berjalan dengan baik dan sesuai rencana. Terdapat peningkatan pengetahuan peserta kegiatan. Peserta kegiatan cukup antusias dalam mengikuti kegiatan, hal ini terlihat dari antusiasme peserta pada saat sesi diskusi dan tanya jawab mengenai materi kegiatan serta peserta mengikuti kegiatan dari mulai awal sampai dengan akhir.
Study of Permanent Magnet Synchronous Motor With LQG Controller and Observer On The Hydraulic Pump System Setiawan, Paulus; Linda Meilani; Denny Dermawan; Freddy Kurniawan; Okto Dinaryanto
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 17 No. 2 (2023)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v17i2.1637

Abstract

In today's aircraft industry, the flight control system and landing gear system cannot be separated from the role of the hydraulic technology system. As the prime mover of the hydraulic pump or actuator hydraulic system, a permanent magnet synchronous motor (PMSM) is used. This PMSM is a substitute for the role of conventional combustion engines, and PMSM is considered to have several advantages in increasing performance and efficiency. This research will develop a system to find parameter values for Linear Quadratic Gaussian (LQG) controllers in a hydraulic pump system that is installed as a load from PMSM and then observe and analyze the performance of the response of the synchronous motor system, namely in the form of changes in rotor rotation speed, torque electric power, and stator current on the q-axis. The results of the research on the characteristics of the PMSM implemented in the hydraulic pump system show that the LQG controller is more optimal when compared to the observer controller. The LQG controller is known to have a faster transient response, which is indicated by the value of the settling time improvement at no load, namely 116.67% for the observer controller and 364.705% without the controller. Then when the synchronous motor serves the nominal load, the rotational speed of the rotor produced in the steady state becomes 8.29% faster than the observer controller and 74.49% without the controller. This rotor's rotational speed affects the time the actuator needs to extend and retract motion.
Estimasi Volume Penumpang Pesawat Udara di Bandar Udara Internasional Adisutjipto Menggunakan Model Gravity Gunawan, Gunawan; Mauidzoh, Uyuunul; Adiputra, Bangga Dirgantara; Dinaryanto, Okto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 1, JULI 2025
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i1.72157

Abstract

Demand forecasting is used by airlines to predict the travel behavior of potential passengers. Accurate forecasting is critical to the overall success of an airline. An important element in forecasting is passenger volume estimation. The goal is to predict the number of passengers expected between two cities for a given time interval. Based on this forecast, airlines can make decisions about new routes or additional flights on existing routes. Starting January 2020, all flights to Yogyakarta have landed at Yogyakarta International Airport (YIA) except for flights using propeller aircraft such as ATR which can still use Adisutjipto International Airport (JOG). Adisutjipto International Airport currently only serves 3 routes, namely Yogyakarta (JOG) - Jakarta (HLP) RT., Yogyakarta (JOG) - Bandung (BDO) RT., and Yogyakarta (JOG) - Surabaya (SUB) RT.. The opening of Adisutjipto International Airport to propeller aircraft makes it possible to increase flight frequencies or new routes. For that, it is necessary to estimate the volume of aircraft passengers at Adisutjipto International Airport using the gravity model. The most accurate model is Model 5, where the attraction force is separated into the number of residents of the origin and destination zones and the GRDP of the origin and destination zones, as well as the distance impedance factor and ticket rates are also separated.
ANALISIS BERBASIS SIMULASI TERHADAP SIFAT AERODINAMIKA AIRFOIL NACA 2412 DENGAN PENAMBAHAN ELEMEN FLAP DAN SLAT Dinaryanto, Okto; Jalaali, Bahrul; Syahrizal; Subarjo, Abdul Haris; Setiabudi, Dedet Hermawan; Kumolosari, Eli
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 2 (2025): SJME Kinematika Desember 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i2.724

Abstract

The original concept for the Easy-Fly project was to create an ultra-light STOL (Short Takeoff and Landing) plane featuring minimal drag and speed attributes. To support this goal, CFD (Computational Fluid Dynamics) was applied by varying the configuration of single-grooved flaps and slats and the angle of attack on the NACA 2412 airfoil. The viscous model used in this case is Spalart-Allmaras. The variation of the angle of attack (α) was modified in the range of 0°-20°. For the flap model, the deflection angle was adjusted to 30° and 40°, and slats were added to the configuration. Based on the results of the study, it was found that flap deflections of 30° and 40° resulted in higher CL values ​​at an angle of attack of 0°. The use of flap and slat designs on the NACA 2412 airfoil effectively delayed airflow separation until it reached a maximum angle of attack of 24°. In addition to the high-lift system design on the NACA 2412 airfoil, changes in camber and effective chord line adjustments resulted in significant improvements in the lift coefficient (CL), drag coefficient (CD), and stall angle. Finally, a 30° flap deflection was more efficient than a 40° deflection in takeoff conditions. The average percentage increase in CL/CD from a 30° to a 40° flap was 17.61%.
Study of Indirect Vector Control Induction Motor Based on Takagi Sugeno Type Fuzzy Logic on Rotational Speed Control Primary Surveillance Radar Setiawan, Paulus; Dharmawan, Muchamad Wizdan; Santoso, Prasidananto Nur; Pratiwi, Elisabeth Anna; Dinaryanto, Okto
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol. 10 No. 2 (2024): June
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/jiteki.v10i2.28689

Abstract

During the rainy season and bad weather, strong winds blowing at an airport can cause dynamic changes in performance of the primary surveillance radar (PSR) antenna which is driven by an induction motor (IM). Changes in dynamic performance that occur in this IM can be in the form of changes in PSR rotation speed, changes in torque values, and changes in stator current values. In this article, we propose the application of the Takagi Sugeno method to fuzzy logic indirect vector control of IM as a solution that can reduce changes in the dynamic performance of motor as PSR drivers during bad weather. The contribution of this research is the application of the Takagi Sugeno method in a fuzzy inference system (FIS), where this fuzzy logic control system replaces the conventional proportional integral (PI) controller for indirect vector control IM. Takagi Sugeno method is computationally efficient and works well with optimization and adaptive techniques, which makes it very attractive in control problems, particularly for dynamic nonlinear systems. Takagi Sugeno type FIS uses weighted average to compute the crisp output, so the Sugeno’s output membership functions are either linear or constant. Furthermore, Takagi Sugeno method has better processing time since the weighted average replace the time consuming defuzzification process. The results obtained after simulation in MATLAB Simulink environment showed that fuzzy logic using the Takagi Sugeno method which is used as a substitute controller for indirect vector control can provide better performance when compared to conventional PI controllers. These results can be seen from the response values of rotor rotation speed, electromagnetic torque, and stator current. Overall, this research provides discourse on improving the dynamic performance of IM through the application of the Takagi Sugeno fuzzy logic indirect vector control method.
Effect of Pouring Temperature Variation on Cooling Rate, Hardness and Microstructure of Al-Zn in Aircraft Structures Pambekti, Arif; Prakoso, Agung; Dinaryanto, Okto; Rahmandhika, Andinusa; Yaqin, Rizqi Ilmal
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 6, No 1 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i1.23945

Abstract

Al-Zn alloys are widely utilized in industries such as automotive, aircraft manufacturing, and advanced military equipment due to their exceptional strength-to-weight ratio. Among various fabrication methods, metal casting is a commonly used technique for producing structural components from these alloys. However, a significant challenge with metal casting is the reduction in mechanical properties compared to the base material before melting. This reduction highlights the need for research to identify the optimal casting conditions, particularly the casting temperature, which plays a crucial role in maintaining and potentially enhancing the material's mechanical properties. Aluminum alloy 7075, known for its high strength, was selected for investigation. According to the Al-Zn phase diagram, the melting point of aluminum alloy 7075, based on the weight percentage specified by the Standard Aluminum Association, is approximately 660°C. Experiments were conducted by varying the pouring temperature during casting in 30°C increments above this melting point. Specifically, the alloy was melted and cast at three different temperatures: 690°C, 720°C, and 750°C. The mold temperature was consistently maintained at 220°C to isolate the effects of the pouring temperature. Results indicate that increasing the casting temperature significantly affects the alloy's microstructure and mechanical properties. As the casting temperature increases, the cooling rate decreases, leading to a finer grain structure. This finer grain size directly contributes to an increase in hardness, suggesting that higher casting temperatures can enhance the mechanical properties of Al-Zn alloys. These findings emphasize the importance of precise control over casting temperatures to optimize the performance characteristics of aluminum alloy 7075 in high-strength applications.
Manufacturing process and experimental study of a small scale archimedes hydro powerplant by varying the number of blade Abdillah, Helmi Fauzan; Dinaryanto, Okto; Jalaali, Bahrul
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 14, No 1 (2022): Mei
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1461.074 KB) | DOI: 10.28989/angkasa.v14i1.1221

Abstract

This study investigated the optimum value of Archimedes Screw Turbine (AST) performance by taking into account blades number. This paper also addressed the design approach based on a fixed incline angle of 30°, where this paper also addressed the design approach. Variations of the single and double blades were experimentally carried out concerning the turbine power output, torque, and rotation speed. This study's aim was related to the optimum power output between two blade variations, while the manufacturing and design steps were addressed as well. In the design process, the obtained blade length dimension was 0.180 m and 0.269 m for the single and double blades. Furthermore, the overall turbine's length was 1.7m, and the inner and outer of the turbine's radius were 0.069m and 0.128m. Meanwhile, the manufacturing process began with turbine modeling, plate cutting, plate withdrawal (thread formation), welding, and attained finishing process. Based on the experimental result, a double blade turbine generated turbine power by 48.8W at an average rotational speed of 115.3 rpm. Moreover, a single blade turbine produced 37.5W with turbine power averaging a rotational speed of 109.8 rpm. It was obtained that the values of turbine efficiency were 42% and 38% for double and single turbine types, respectively. Based on this finding, it can be suggested that a double blade was more efficient than a single one. This study is beneficial for the design consideration of the AST system.
Co-Authors Abdillah, Helmi Fauzan Abdul Haris Subarjo abdul haris subarjo, abdul haris Agung Prakoso Akhmad Zidni Hudaya Andinusa Rahmandhika Arif Pambekti Bahrul Jalaali Bahrul Jalaali Bambang Sudibya Bangga Dirgantara Adiputra Dedet Hermawan Setiabudi Dedet Hermawan Setiabudi Dedet Hermawan Setiabudi, Dedet Hermawan Deendarlianto Denny Dermawan Denny Dermawan Dharmawan, Muchamad Wizdan Djarot Wahju Santoso Edi Prasetyo Eli Kumolosari Faizi, Achmad Noor FAJAR NUGROHO Fajar Nugroho Freddy Kurniawan Freddy Kurniawan Freddy Kurniawan Freddy Kurniawan Freddy Kurniawan Freddy Kurniawan Ghufron, Hanif Gunawan Gunawan Haris Subarjo, Abdul Haruno Sajati Hermawan S, Dedet Indarto Indarto Jalaali, Bahrul Kusumawardani, Mawar Kutut Suryopratomo Lasmadi Lasmadi Lasmadi Lasmadi Linda Meilani Mardiana Irawati Mawar Kusumawardani Muhammad Hisyam Nasution, Muhammad Ridlo Erdata Pinandhita, Lazuardy Rahendra Pratiwi, Elisabeth Anna Qoaruddin Qomaruddin Rizqi ilmal yaqin, Rizqi ilmal Santoso, Prasidananto Nur Setiawan, Paulus Sudarmaji, Catur Sutono, Sugoro Bhakti Syahrizal Teguh Wibowo Uyuunul Mauidzoh Uyuunul Mauidzoh Wahyu S, Djarot