Institut Teknologi Nasional: Jurnal Itenas Online
Not a member yet
1717 research outputs found
Sort by
Analisis Perilaku Struktur dan Penyebaran Gaya pada Gedung Frame-Tube
Full text linkABSTRAKPerancangan gedung bertingkat tinggi pada daerah rawan gempa seperti Indonesia tergolong sulit. Gedung bertingkat tinggi cenderung memiliki fleksibilitas tinggi, sehingga perlu diperhatikan bagaimana perilaku struktur dan penyebaran gayanya. Meskipun telah banyak tipe bangunan dengan berbagai bentuk gedung bertingkat tinggi yang telah terbangun, perilaku setiap bangunan dapat berbeda, bergantung pada bentuk denah, tipe gedung, maupun tinggi gedung. Bangunan bertingkat yang dianalisis merupakan sistem framed-tube, karena sistem ini masih terbilang jarang untuk bangunan gedung di Indonesia. Model akan didesain menggunakan software ETABS, dengan pengecekan kriteria desain gempa mengacu pada SNI 1726:2019. Tujuan utama dari penelitian ini adalah mengetahui bagaimana perilaku struktur dan penyebaran gaya pada gedung bertingkat frame-tube. Dimana dengan tipe bangunan ini, diketahui bahwa elemen eksterior akan berpengaruh pada elemen interior, pun sebaliknya. Pada akhir penelitian, diketahui bahwa semakin tinggi gedung, semakin besar periode struktur dan simpangan strukturnya. Diketahui pula bahwa pada bangunan frame-tube, elemen eksternal menerima gaya lateral, sedangkan elemen internal menerima gaya gravitasi. Sehingga struktur dengan sistem framed-tube ini dinilai efektif dalam menahan gaya gempa.Kata kunci: perilaku struktur, framed-tube, penyebaran gaya, elemen eksternal, elemen interior ABSTRACTDesigning high-rise buildings in earthquake-prone areas such as Indonesia is difficult. High-rise buildings tend to have high flexibility, so it is necessary to pay attention to how the structure behaves and the distribution of forces. Although many types of buildings with various forms of high-rise buildings have been built, the behavior of each building can be different, depending on the plan form, building type, and building height. The high-rise building analyzed is a framed-tube system, as this system is still relatively rare for buildings in Indonesia. The model will be designed using ETABS software, with earthquake design criteria checking referring to SNI 1726:2019. The main objective of this research is to find out how the structural behavior and force distribution in a frame-tube high-rise building. Where with this type of building, it is known that exterior elements will affect interior elements, and vice versa. At the end of the study, it was found that the higher the building, the greater the structural period and structural deviation. It is also known that in frame-tube buildings, external elements receive lateral forces, while internal elements receive gravitational forces. So, the structure with the framed-tube system is considered effective in resisting earthquake forces.Keywords: structural behaviour, framed-tube, force distribution, external elements, interior element
The Training of Implementing Artificial Intelligence, Machine Learning and Big Data in Cloud Computing
Full text linkDisruption is an inevitable consequence of rapid technological advancements. It occurs when existing human resources struggle to keep pace with the swift evolution of technology. One effective way to address this issue is by organizing training sessions aimed at enhancing skills. The Telecommunications Systems Study Program successfully held a training event designed to improve participants' skills, particularly in technology. The participants, including students from vocational high schools (SMK), expressed high levels of satisfaction with the event. The topics covered ranged from cloud computing, artificial intelligence, machine learning, to big data. The training did not merely provide theoretical knowledge but also included practical applications. This community service activity was organized by students serving as the event infrastructure team, with faculty members leading the event as the organizing committee. The participants were students from ten different vocational high schools (SMK) and took place over a period of one day, from 8 AM to 3 PM. Thanks to this training method, the student development significance value reached 33%
Pengaruh Kuat Tekan Beton dengan Penambahan Abu Batu pada Agregat dari Sungai Laklo’o Kabupaten Liquica Dili Timor Leste
Full text linkABSTRAKBeton semen Portland adalah jenis beton yang terbuat dari semen, kerikil dan pasir. Abu batu adalah material yang digunakan untuk membangun agregat buatan. Keunggulan abu batu dibandingkan pasir adalah ukuran butirannya yang relatif kecil, yang memungkinkan digunakan Penggunaan filler pada campuran beton berfungsi untuk menciptakan permukaan yang rata dan seragam, sehingga tidak perlu dilakukan pengayakan. Pada penelitian ini, campuran beton ditambahkan abu batu sebesar nol, tiga puluh, enam puluh, dan seratus persen dari berat pasir. Hasil penelitian menunjukkan bahwa beton normal dan beton dengan abu batu 30% memenuhi umur. Beton dengan abu batu 60% dan 100% tidak memenuhi rencana umur dan tidak disarankan untuk digunakan dalam proyek konstruksi. Beton dengan abu batu 30% memenuhi kriteria proporsi bahan pengisi. Beton dengan abu batu 60% dan 100% tidak memenuhi kekuatan yang direncanakan karena kekurangan agregat halus yang berfungsi untuk mengisi rongga. Akibatnya, beton dengan pasir sebanyak 70% masih dapat mengisi rongga.Kata kunci: beton, kuat tekan beton, abu batu ABSTRACTPortland cement concrete is a type of concrete made from cement, gravel and sand. Stone ash is a material used to build artificial aggregates. The advantage of stone ash over sand is its relatively small grain size, which allows it to be used. The use of fillers in concrete mixes serves to create a flat and uniform surface, eliminating the need for sieving. In this study, stone ash was added to the concrete mix at zero, thirty, sixty, and one hundred percent of the sand weight. The results showed that normal concrete and concrete with 30% stone ash met the age. Concrete with 60% and 100% stone ash did not meet the age plan and is not recommended for use in construction projects. Concrete with 30% stone ash meets the criteria for the proportion of filler material. Concrete with 60% and 100% stone ash did not meet the planned strength due to the lack of fine aggregate to fill the voids. As a result, concrete with 70% sand can still fill the voids.Keywords: concrete, concrete compressive strength, stone ash
Analysis of Solar Power Generation Needs for Weather Stations based on ESP32
Full text linkA remote weather station requires solar power system (PLTS), hence making power consumption calculation is very essential. PLTS analysis is applied to an ESP32-based weather station with low-power sensors to reduce costs. The process starts with setting up the station and PLTS without prior analysis, followed by a literature review, data collection of current and voltage from the SCC, conducting an analysis, and finally determining components recommendations. Calculations determine the need for a 12V, 4.375 Ah battery, 14.255 Wp solar panel, and a SCC with 0.46 A battery current and 0.306 A load current. Adjusted to market availability, a VRLA 12V/6Ah battery, 20 Wp solar panel, and 5A SCC module can replace the previously used 12V/7Ah battery, 50 Wp solar panel, and 10A SCC
Evaluation Turbine Blade Design and Materials Steam Power Plant : Literature Review
Full text linkTurbine blades are critical components in a steam power plant that directly affect the thermal efficiency and reliability of the system. This study aims to conduct a systematic review of turbine blade design and failure using a systematic literature review (SLR) approach that covers four main classifications, namely Design and Optimization, Materials and Structural Analysis, Failure Analysis and Prediction, and Aerodynamics and Steam Flow. The results of the study show that blade design optimization using numerical methods such as Computational Fluid Dynamics (CFD), genetic algorithms, and the Taguchi method can significantly reduce energy losses, such as reducing condensation losses by up to 28.5% and reducing erosion rates by up to 58%. High-strength materials, such as Waspaloy, have proven effective for high-pressure applications, while surface hardening technologies such as laser hardening and shot peening increase the hardness and fatigue resistance of the blades. In addition, failure analysis using vibration techniques and the Metal Magnetic Memory (MMM) method allows early detection of damage to prevent major failures. This study concludes that the combination of multi-objective optimization techniques, real-time monitoring, and advanced material development can improve the energy efficiency and sustainability of steam power plants
Penentuan Modulus Resilien Berdasarkan Indirect Tensile Strength (ITS) pada Campuran AC-WC Menggunakan Aspal PG-76 dengan Gradasi KP 14 Tahun 2021
Full text linkABSTRAKPenggunaan aspal PG-76 sengan gradasi KP 14 Tahun 2021 pada campuran AC-WC bertujuan meningkatkan ketahanan terhadap deformasi dan retak. Pengujian Indirect Tensile Strength (ITS) dilakukan untuk menentukan modulus elastisitas campuran berdasarkan tegangan dan regangan. Metode melibatkan pembuatan benda uji Marshall, pengujian volumetrik, serta ITS pada dua kondisi: terkondisi dan tidak terkondisi. Kadar aspal optimum ditentukan sebesar 6%. Hasil menunjukkan nilai ITS pada benda uji terkondisi sebesar 935 kPa (0,94 MPa); sedangkan pada benda uji tidak terkondisi sebesar 1.119 kPa (1,12 MPa). Nilai Tensile Strength Ratio (TSR) mencapai 84%, memenuhi standar KP 14 Tahun 2021. Modulus resilien pada benda uji terkondisi sebesar 733 MPa dan 1.050 MPa pada benda uji tidak terkondisi. Hasil modulus resilien tersebut memiliki potensi penerapan yang baik dalam konstruksi lapisan permukaan fasilitas sisi udara bandara.Kata kunci: modulus resilien, aspal PG-76, kuat tarik tidak langsung, KP 14 Tahun 2021 ABSTRACTThe application of PG-76 asphalt with KP 14 Year 2021 gradation in AC-WC mixtures aims to enhance resistance against deformation and cracking. The Indirect Tensile Strength (ITS) test was conducted to determine the elastic modulus based on stress-strain response. The methodology included Marshall specimen preparation, volumetric testing, and ITS evaluation under conditioned and unconditioned states. The Optimum Asphalt Content (OAC) was determined as 6%. Results showed an ITS value of 935 kPa (0.94 MPa) for conditioned specimens and 1119 kPa (1.12 MPa) for unconditioned specimens. The calculated Tensile Strength Ratio (TSR) reached 84%, meeting KP 14 Year 2021 requirements. Resilient modulus values were found to be 733 MPa for conditioned specimens and 1050 MPa for unconditioned specimens. The result of resilience modulus exhibits strong potential for application in surface layer construction at airside airport facilities.Keywords: resilient modulus, PG-76 asphalt, indirect tensile strength, KP 14 Year 2021
West Java International Airport, Kertajati Airport, West Java Local Cultur
No full textPenelitian ini membahas penerapan elemen budaya lokal pada desain interior Bandar Udara Internasional Jawa Barat (BIJB) Kertajati, Majalengka. Sebagai gerbang udara baru, bandara ini diharapkan tidak hanya berfungsi secara praktis tetapi juga merepresentasikan identitas budaya daerah. Penelitian ini menggunakan metode deskriptif kualitatif dengan pendekatan analisis visual terhadap elemen arsitektur dan interior. Hasil kajian menunjukkan bahwa penerapan motif batik Mega Mendung, penggunaan material lokal, serta pengolahan ruang dengan simbol-simbol budaya Sunda memberikan nuansa identitas lokal yang kuat. Selain itu, strategi penataan interior mampu menghadirkan pengalaman ruang yang tidak sekadar fungsional, tetapi juga emosional dan kultural bagi pengguna. Integrasi elemen budaya dalam desain bandara tidak hanya memperkuat citra budaya Sunda di ranah global, tetapi juga membangun rasa memiliki bagi masyarakat lokal. Simpulan penelitian ini menekankan pentingnya mengintegrasikan nilai budaya lokal dalam desain bandara modern sebagai strategi memperkuat identitas budaya sekaligus meningkatkan pengalaman pengguna. Kata Kunci: budaya lokal, interior bandara, identitas Sunda, KertajatiKertajati International Airport in Majalengka, West Java, serves as a modern air transportation hub while also reflecting the deep local cultural richness. Every corner of the airport's interior is adorned with classic Sundanese batik motifs, creating a warm and familiar atmosphere for visitors. Furthermore, the airport regularly hosts cultural exhibitions featuring traditional dances, handicrafts, and West Javanese cuisine. This aims to introduce and foster an appreciation of local culture among travelers from around the world. The innovative and meaningful design implemented at Kertajati Airport ensures that each visit is not just a physical journey but also a cultural experience that enriches the visitors' appreciation of the region. Thus, the airport not only acts as a gateway to West Java but also a mirror of the living and thriving cultural heritage
Pendekatan Arsitektur Neo Vernakular pada Rancangan Islamic Center
Full text linkABSTRAK Sambas merupakan salah satu Kabupaten di Provinsi Kalimantan Barat dengan mayoritas penduduknya beragama Islam. Hal ini menyebabkan di sana banyak dilaksanakan kegiatan ke-Islaman, tetapi masih belum tersedia suatu wadah yang dapat menunjang ibadah sekaligus meningkatkan kualitas hidup umat muslim. Sehingga, diperlukan Islamic center yang merupakan pusat peribadatan, pendidikan, kemasyarakatan, dan penyiaran agama serta budaya Islam. Metode yang digunakan untuk mengumpulkan data yaitu kualitatif. Pendekatan tema yang dipilih untuk perancangan ini adalah arsitektur neo vernakular yang merupakan penggabungan antara arsitektur tradisional dan modern. Arsitektur tradisional yang diacu berasal dari suku asli Kalimantan Barat yaitu suku Dayak dan suku Melayu Tradisional. Neo vernakular dipilih dengan tujuan menghasilkan desain Islamic center yang modern dan fungsional sesuai kebutuhan di zaman modern tanpa mengabaikan unsur/ nilai lokalitas tradisional setempat. Tema ini diterapkan pada pola sirkulasi kendaraan dan pejalan kaki yang dapat menjangkau seluruh bangunan seperti sungai, massa bangunan yang mengadaptasi bentuk rumah Panjang suku Dayak bernama Ompuk Domuk, atap yang bentuknya mengadaptasi dari rumah suku Melayu Tradisional (atap Potong Limas, atap Potong Godang) dan Ompuk Domuk, pola batik Pucuk Rebung pada ornamen arsitektural, penerapan neo pada struktur dan material bangunan yang lebih modern, serta adanya paduan warna material alami dan kontras.Kata kunci: islamic center, islam, kabupaten sambas, neo vernakular ABSTRACT Sambas is one of the regencies in West Kalimantan Province, where the majority of the population is Muslim. This demographic condition has led to the frequent organization of Islamic activities; however, the region still lacks a dedicated facility that can simultaneously support religious practices and enhance the quality of life of the Muslim community. Therefore, the development of an Islamic Center—which functions as a hub for worship, education, social activities, and the dissemination of Islamic religion and culture—is required. The data collection for this study employed a qualitative approach. The design adopts a neo-vernacular architectural theme, which integrates traditional and modern architectural elements. The traditional references are drawn from the indigenous ethnic groups of West Kalimantan, namely the Dayak and the traditional Malay communities. The goal of using neo-vernacular architecture is to create a modern and functional design for an Islamic Center that still respects the cultural and traditional values of the area. This theme is reflected in several design aspects: a circulation pattern for vehicles and pedestrians inspired by river networks; building masses adapted from the longhouse form of the Dayak Ompuk Domuk; roof forms derived from traditional Malay houses (Potong Limas and Potong Godang) and Ompuk Domuk; architectural ornamentation incorporating the Pucuk Rebung batik motif; and modern interpretations in building structure and material selection. The design also emphasizes the combination of natural material tones with contrasting colors to reinforce both modernity and regional identity. Keywords: architecture, modern, tropic, educatio
Prediksi Rate of Penetration pada Pengeboran Minyak Bumi dengan Elman Recurrent Neural Network
Full text linkABSTRAKPenelitian ini bertujuan memprediksi laju penetrasi (ROP) guna mempercepat waktu pengeboran dan menekan biaya operasional. Metode yang digunakan adalah Elman Recurrent Neural Network (ERNN) dengan algoritma backpropagation, yang dipilih karena kemampuannya dalam mengenali pola data sekuensial pada data pengeboran. Data yang digunakan 2613 data ASCII Mudlogging minyak bumi dari PT Geotama Jogja dengan 5 variabel input, yaitu Kedalaman Vertikal Sejati atau TVD (m), Beban Mata Bor atau WOB (klbs), Kepadatan Sirkulasi Ekuivalen atau ECD (SG), Mud Weight in atau MWI (SG), dan Total Kecepatan Rotasi Pahat atau TRPM. Sedangkan variabel outputnya yaitu laju penetrasi atau ROP (m/hr). Data dihaluskan menggunakan Savitzky-Golay filter dan dibagi data training dan data testing yang sebesar 90% dan 10%. Model ERNN terbaik yang diperoleh yaitu 5 variabel input, 17 neuron tersembunyi, dan 1 variabel output. Nilai MAPE data training sebesar 16.18%, dengan akurasi 83.82%. Sedangkan nilai MAPE data testing sebesar 15.48%, sehingga akurasinya 84.52%. Kata kunci: Elman Recurrent Neural Network, laju penetrasi, prediksi, minyak bumi, MAPE ABSTRACTThis study aims to predict the rate of penetration (ROP) to speed up drilling time and reduce operational costs. The method used is the Elman Recurrent Neural Network (ERNN) with the backpropagation algorithm, which was chosen because of its ability to recognize sequential data patterns in drilling data. The data used are 2613 ASCII Mudlogging data from PT Geotama Jogja with 5 input variables, namely True Vertical Depth or TVD (m), Drill Bit Load or WOB (klbs), Equivalent Circulation Density or ECD (SG), Mud Weight in or MWI (SG), and Total Tool Rotation Speed or TRPM. While the output variable is the rate of penetration or ROP (m/hr). The data is smoothed using the Savitzky-Golay filter and divided into training data and testing data of 90% and 10%. The best ERNN model obtained is 5 input variables, 17 hidden neurons, and 1 output variable. The MAPE value of the training data is 16.18%, so the accuracy is 83.82%. Meanwhile, the MAPE value for the testing data was 15.48%, resulting in an accuracy of 84.52%. Keywords: Elman Recurrent Neural Network, penetration rate, prediction, petroleum, MAP
Aplikasi Android Home Service Sepeda Motor Berbasis Clean Architecture
Full text linkAbstrakDigitalisasi layanan perawatan kendaraan semakin didorong dengan perkembangan teknologi. Di Indonesia, dengan lebih dari 120 juta sepeda motor terdaftar, terdapat kebutuhan mendesak untuk solusi perawatan yang mudah diakses, namun layanan home service yang berbasis aplikasi untuk roda dua masih terbatas dan perlu dirintis. Penelitian ini bertujuan untuk mengisi kesenjangan tersebut dengan mengembangkan aplikasi home service sepeda motor berbasis Android. Metode Clean Architecture diimplementasikan sebagai pendekatan metodologis dengan mempertimbangkan faktor separation of concern, testability dan maintainability. Keberhasilan fungsional aplikasi divalidasi melibatkan ahli melalui pengujian Unit dan Black Box yang keduanya mencapai 100%. Kesimpulan akhir penggunaan Clean Architecture menghasilkan sebuah Minimum Viable Product (MVP) yang modular, mudah diuji, dan dapat dipelihara. Selain itu, Clean Architecture menjanjikan rekomendasi strategis untuk pengembangan tahap produksi serta pembuktian konsep yang solid dan fundamental.Kata kunci: Android, clean architecture, home service, perawatan motorAbstractThe digitisation of vehicle maintenance services is increasingly being driven by technological developments. In Indonesia, with more than 120 million registered motorcycles, there is an urgent need for easily accessible maintenance solutions, but app-based home services for two-wheelers are still limited and need to be pioneered. This study aims to address this gap by developing an Android-based motorcycle home service app. The Clean Architecture methodology is implemented as a methodological approach, considering factors such as separation of concerns, testability, and maintainability. The functional success of the app is validated through expert testing, including Unit Testing and Black Box Testing, both of which achieved 100% success rates. The final conclusion of using Clean Architecture resulted in a modular, testable, and maintainable Minimum Viable Product (MVP). Additionally, Clean Architecture offers strategic recommendations for production-stage development and a solid, fundamental proof of concept.Keywords: Android, clean architecture, home service, motorcycle maintenanc