Conference SENATIK STT Adisutjipto Yogyakarta (Seminar Nasional Teknologi Informasi dan Kedirgantaraan)
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Pengembangan dan analisis kualitas aplikasi mobile tour guide museum pusat TNI AU Dirgantara Mandala
No full textTujuan penelitian ini adalah mengembangkan aplikasi mobile Tour Guide Museum Dirgantara berbasis Android sebagai media informasi yang mempermudah wisatawan mengetahui koleksi yang ada di museum, dan memberikan jaminan kualitas aplikasi mobile tour guide Museum Dirgantara dengan melakukan pengujian perangkat lunak sesuai standar ISO 25010. Metode yang digunakan pada penelitian ini adalah Research and Development dengan prosedur pengembangan perangkat lunak model Waterfall. Hasil dari penelitian ini, pertama adalah aplikasi mobile Tour Guide Museum Dirgantara telah memenuhi kebutuhan sebagai media informasi yang memudahkan pengunjung dalam menjelajahi museum dan mengetahui koleksi-koleksi di Museum Dirgantara. Kedua, hasil pengujian menunjukkan bahwa aplikasi telah memenuhi standar kualitas perangkat lunak ISO 25010. Aspek functional suitability sebesar 100%, aspek compatibility pada berbagai sistem operasi dan tipe perangkat sebesar 91,67% dan co-existence sebesar 100%, aspek performance efficiency CPU 18,37%, memory 19,01MB, time behavior 0,039 seconds/thread, aspek usability sebesar 84,93%, dan hasil pengujian kualitas uji materi sebesar 100%. Hasil pengujian aplikasi secara keseluruhan dinyatakan “Sangat Baik”
Perancangan dan simulasi Turbin Angin Sumbu Horizontal (TASH) dengan variasi jumlah blade dan variasi sudut pitch serta analisis power, torque dan thrust menggunakan aplikasi Q-Blade
No full textTurbin angin memanfaatkan energi kinetik dari angin dan kemudian mengkonversinya menjadi energi listrik. Ada dua tipe turbin angin yaitu Turbin Angin dengan Sumbu Horizontal (TASH) dan Turbin Angin dengan Sumbu Vertical (TASV). Turbin Angin Sumbu Horisontal adalah jenis turbin angin dimana sumbu rotasi turbin nya diorientasikan secara sejajar dengan arah angin agar menghasilkan power. Sedangkan Turbin Angin Sumbu Vertikal adalah jenis turbin angin dimana sumbu rotasi turbin ini tegak lurus dengan arah angin atau permukaan pemasangan. Dalam penelitian ini dilakukan perancangan Simulasi Turbin Angin Sumbu Horizontal (TASH) dengan memvariasikan jumlah blade 3, 4, 5, 6, sudut pitch 0°, 6°, 10° dan variasi kecepatan angin serta menganalisis performance yang dihasilkan oleh turbin angin tersebut dengan parameter Power, Torque dan Thrust. Berdasarkan perancangan dan analisis yang dilaksanakan, diperoleh kesimpulan bahwa nilai power paling besar pada turbin dengan jumlah 3 blade, sudut 6° yaitu sebesar 2837 watt saat kecepatan angin 20 m/s dan 1401,00 rpm. Nilai rotor torque terbesar pada turbin dengan jumlah 6 blade, sudut pitch 0° yaitu sebesar 34,5 Nm pada kecepatan angin 20 m/s dan kecepatan rotasi 601,00 rpm. Nilai thrust terbesar dihasilkan oleh turbin angin dengan jumlah 6 blade, sudut 10° yaitu sebesar 363,11 N ketika kecepatan angin 20 m/s dan kecepatan rotasi 1401,00 rpm. Penelitian ini juga melakukan pengujian pada kecepatan angin rata-rata di Indonesia yaitu dengan kecepatan 12 m/s dan kecepatan rotasi 300 rpm, diperoleh turbin angin paling efesien adalah dengan jumah blade 6 dengan menghasilkan power 332,383 watt, rotor torque 610,545 Nm dan thrust 57,582 N
Analisis prakiraan kecepatan angin dengan menggunakan artificial neural network
No full textPrediction is one of the most important techniques in determining the resulting wind speed. The decision to predict is very important, because with predictions can calculate the average wind speed and a good prediction is an accurate prediction. The purpose of this research is to predict the wind speed using the neural network model to determine the wind speed in the following year. To predict wind speed, the author builds a wind speed prediction model using an artificial neural network (ANN) with a backpropagation learning algorithm. The scope of research data collection from BMKG Sleman. Therefore we need a method that is better than the load coefficient method. The results of this study show that the predictions of ANN wind speed in 2019 from January to December are close to the default data from the BMKG. Sleman and stay stable. And the average error percentage of ANN is 5%.
Design of helical-blade rotor of Vertical Axis Wind Turbine (VAWT)
No full textThe vertical axis wind turbine (VAWT) with helical-blade has been developed, manufactured and applied in almost all developed countries. In Indonesia, vertical axis wind turbines are still not widely applied compared to horizontal axis wind turbines. Vertical axis wind turbines with helical-blade are still very rare in Indonesia. Research and development of the vertical axis wind turbine are needed because of its advantages compared to horizontal axis wind turbine. The advantages are: can operate in various wind directions, lower noise due to smaller tip speed ratio (TSR) and for large-scale, mechanical and electrical systems of turbine can be placed on ground. The aim of this research is to design a vertical axis wind turbine rotor with helical-blade that can be applied at low speeds and changing direction wind condition, such as urban wind characteristics. Performance analysis of wind turbine rotor is done by using double-multiple stream-tube (DMS) model approach. This research yields a rotor of vertical axis wind turbine with helical-blade with rotor length and diameter are 2m and 1m respectively, the rotor blade airfoil is DU-06-W-200 with chord length is 0.2m. From analysis, the optimum tip speed ratio of the rotor is 2.6 with a maximum power coefficient is 0.57
Selection of outbound locations in Gunung Kidul using a Multi- Object Optimization Method Based on Reporting Analysis
No full textDecision support system (DSS) is a computer-based system that can help users make decisions. One of the DSS applications is to select outbound locations in Gunungkidul by using the Multi-Object Optimization method on the Base Ratio of Analysis (MOORA). Outbound is an open-air learning method based on direct experience presented in the form of games, discussions and adventures. So that participants will get feedback about the impact of the activities carried out which is useful for self-development in the future. The application of the MOORA method is a method that can determine the weight of each criterion, then proceed with a ranking process that will select the best alternative from a number of available alternatives. In this study an application for outbound location selection in Gunungkidul was made using the MOORA method, an application designed based on a website, this test was carried out using black box testing. The results of this study show that the best location based on the criteria weight and ranking with several alternatives is the location of the Nglanggeran Ancient Volcano with a value of 0.1507, Sri Getuk Waterfall with a result of 0.0909, Kampung Jelok with a result of 0.01497, Goa Pindul with a result of 0.00182, Sundak Beach with a result The result is -0.07192, Wulenpari with the result -0.08854, and the last one is Indrayanti beach with the result -0.13179
Analisa kekuatan struktur dan pembuatan fuselage UAV dengan Metode Vacuum Bagging
No full textTujuan penelitian ini adalah untuk mengetahui kekuatan struktur fuselage UAV dengan Software Solidwork dan membuat fuselage UAV dengan material komposit woven fiberglass seri wf 100 dengan metode vacuum bagging. Pengujian tarik juga dilakukan sebagai pembanding dengan simulasi solidwork. Fuselage UAV ini menggunakan fiberglass 2 layer dengan ketebalan 0,5 mm, 3 layer dengan ketebalan 0,75 mm, serta menggunakan sambungan fiber tali yang disatukan dengan diameter 5 mm. Komposisi komposit menggunakan 80% matriks dan 20% serat dan perbandingan matriks 3 : 1. Hasil penelitian didapatkan tegangan uji tarik terbesar pada komposit 3 layer yaitu 199 N/mm2 dan Tegangan uji tarik terbesar pada sambungan terdapat pada 3 layer yaitu 37,49 N/mm2. Struktur fuselage dinyatakan aman karena hasil simulasi (tegangan simulasi) < hasil dari pengujian tarik (tegangan uji tarik). Sedangkan dalam pembuatan fuselage diperlukan komposit dengan volume 414,4 cm3 dan berat 583,44 gram
Longitudinal static stability analysis with wing swept angle variation of UAV flying wing surveillance adelaar 2 use software XFLR 5
No full textAircraft stability is very important for calculated in aircraft design, specially for UAV which will be used for air surveillance. The purpose of aircraft stability analysis to find aircraft stability characteristic. Aircraft static stability can be analyzed by XFLR 5 Software which is can calculate characteristic of aircraft static stability, show visual, graph, and simulation of aircraft stability. Adellar 2 is UAV with flying wing configuration and will be analyzed use software XFLR 5 with the input of aircraft mass with the centre of gravity wil be located in 5% of mean aerodynamic chord in front of neutral point and aircraft geometry types of airfoil in chord root, tip, span , winglet geometry and wing swept. With the result that Adelaar 2 is qualify for longitudinal static stability after the author analyze use XFLR5 with the parameter Cma<0 and obtained character of stability for 22.5o , 25o , 27.5o and 30o wing swept angle
Rancang bangun Arithmetic Logic Unit 8 bit pada Spartan 2 field programmable gate array
No full textAs we know, digital systems have been used in everyday life or in industry today because they are more useful than analog systems. Because it is important to develop digital systems, many new digital devices have been designed in complex ways. Some of these devices are called microprocessors, microcontrollers or microchips. It is very important to have very high speed performance in all devices. In this study, a tool was designed, namely, the Arichmetic Logic Unit or it can be called ALU. An important part of Field Programmable Gate Arrays or also known as FPGA, ALU generally has functions to perform arithmetic and logic calculations. Based on the results of the testing of the tools that have been carried out, it can be concluded that the design of the Arichmetic Logic Unit on the Spartan 2 FPGA. with the arithmetic operations performed are the ADDER (A + B) and SUBTRACTOR (A - B) operations, the logical operations performed are the OR (A OR B) and AND (A AND B) operations. It has been simulated and implemented with results that match the specifications of the design
Analysis of Pressure and Flow Patterns on Two-Phase (Air-Water) Flow in Horizontal Pipes With Scalloped Groove
No full textThe groved surfaces are widely researched to reduce pressure drop and control a flow on the surface. In applicative fluids flow is turbulen. So, the grove addition capable of affecting the boundary layer condition near the wall pipes. This will greatly determine the pressure drop and the flow patterns that occur during the fluids flow. The purpose of this researched is to analyse the impact of the number of grooves in pipes against the pressure drop and the occurred flow patterns. In this researched, we used 3 pipes, which total of grooves were 4,8,16 and the pipes without grooves that used as comparator. The observed flow was two phases flow ( air-water). The researched pipes used acrylic pipes with diameter of 1 inch and length of 100 cm with the groove used was type of scalloped groove. Pressure drop occurs in all of the grooves ; 4,8, and 16. The highest pressure drop decrease occurred in groove 16. When there was drop in pressure drop in every single of groove, in low air discharge, bubbly that firmed was more tightly without making slug flow. When the debit was getting bigger, the bubbly was reduced and followed by the emergence of slug flow. The changes in water debit in the decrising of pressure drop in every single of drop, shows the dencity between the bubbly and slug flow that firme
Scada for Prototype of Multi Area Parking System Based on PLC M221
No full textSCADA for the prototype M221 PLC-based multi-area car parking system is a system for managing several separate car parks on line via ethernet. The system is equipped with HMI as an interface to facilitate operators to monitor system conditions in real-time and the ability to display data on the number of vehicles entering and exiting, counting the number of vehicles parked for one day, and calculating revenue throughout the day. Loop sensor is used to detect vehicles that will enter or exit the parking door. Input from the sensor will be processed by the PLC to move the doorstop motor, indicator lights and update the display on the HMI. The results of a multi-area prototype test process for a car parking system for two parking areas have worked well. The system is able to control the opening and closing of the entrance and exit bars, controlling the indicator lights whether or not the parking area is full, showing the animation of the system process to the HMI in real time, calculating the number of vehicles and calculating the total cost of revenue in each parking area