Conference SENATIK STT Adisutjipto Yogyakarta (Seminar Nasional Teknologi Informasi dan Kedirgantaraan)
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RESPON PENUMPANG BANDAR UDARA INTERNASIONAL ADISUTJIPTO YOGYAKARTA TERHADAP PEMINDAHAN LOKASI BANDARA KE KULON PROGO
No full textJumlah penumpang, barang dan jasa transportasi udara di Indonesia menunjukkan angka dan grafik yang terus meningkat. Dalam perkembangannya, pada awal tahun 2003 kapasitas Bandar Udara Internasional Adisutjipto sudah mulai dirasakan tidak layak, maka dengan latar belakang di atas maka penelitian menggunakan pendekatan kualitalif. Dengan pendekatan tersebut maka didapatkan Respon pengguna jasa penerbangan di Bandar Udara Internasional menunjukan 71% setuju bila bandara Jogja dipindahkan ke daerah Kulon Progo dikarenakan 89% dari responden memberikan respons bahwa lokasi Bandar Udara Internasional Adisutjipto sudah tidak layak lagi untuk menampung jumlah penumpang yang ada di bandara tersebut. Ketidaklayakan daya tampung disebabkan oleh meningkatnya jumlah pengguna jasa penerbangan dari tahun ke tahu
Analisis Kekuatan Struktur Retak Skin Fuselage Repair Pesawat B747-400
No full textAbstract — Structure Repair Manual (SRM) is a manufacture guidelines issued by the MRO (Maintenance and Repair Organization) who have the authority to perform a repair aircraft. SRM function as an actual reference in doing a modification SRM repair. In its application modifications can be done by changing the layout variations and variations of fastener used. To determine the feasibility of a repair configuration modifications done by modeling and analysis to determine the maximum stress that occurs in both configurations. In this research, modeling and analysis using software CATIA V5R21. Created 2 configuration model that SRM structure repair and modification of the structure of SRM repair. Both models are given internal pressure load, while the fastener strength was tested by making a simpler model to provide tensile load.The maximum stress that occurs in structures that modification SRM repair is 18265 Psi by the internal pressure loading, whereas for tension loading cases amounted to 22380.9 Psi. Based on the margin of safety the modifications structure of SRM repair declared to be safer than SRM structure repair. Keywords : skin fuselage, repair, crack, SR
Estimasi Nilai Faktor Intensitas Tegangan (KI) Tipe Center Crack Dengan Metode Numerik
No full textCrack on a structure will lead to hazard if it’s ignored, because It’s causing singularity to the tip of the cracked structure where the stress tend to infinity. Stress Intensity Factors(SIF) will determine the behaviour of the cracked structure, and it have have to figure it out. Many methods can estimate or predict the values of the SIF according to the crack mode and the crack types. Numerical mothod such as displacement extrapolation and Virtual crack closure technique is one of those method. Method of displacement extrapolation and VCCT in this research will estimate the value of the KI (SIF)of the mode I (opening mode) center type crack. Modelling and analyzing in a FEM based software is needed to accuire datas to calculate the KI. Nodal displacement and nodal force are those datas. Result shows that the displacement extrapolation method have small eror to the value of KI than the VCCT. Displacement extrapolation method also give simple calculaton than the VCCT. In order for VCCT method to be acurate, remeshing model is needed.
Perancangan Siste Data Udara Menggunakan Media Tranmsisi Serat Optis
No full textThe use of optical fiber transmission media at the Air Data System is affected by the development of optical fiber technology. The system is able to present the data required by the flight crews quickly and accurately. Therefore, it supports the success of a certain mission. In addition, the air data system using the transmission medium optical fiber also has advantages other than the copper cables, i.e: immune to EMI (Electro Magnetic Interference), RFI (Radio Frequency Interference), EMP (Electro Magnetic Pulses), and will not experience any disruption caused by the occurrence of a short circuit.The fiber optic air data system is designed in consideration with the characteristics of it’s components i.e: the transmitter, optical fiber cable and the data receiver. The study also completely discusses the air data system, from the sensor, Air Data Computer (ADC), and the display of aircraft altitude and speed. .Kata kunci: Serat optis, sistem data udara, air data computer
Analisis User Interface dan User Experience pada Website Sekolah Tinggi Teknologi Adisutjipto Yogyakarta
No full textUser Interface Design and User Experience both on a website will make visitors want to linger on those websites. But otherwise, a User Interface Design and User Experience bad a website makes visitors leave the website. This study, will analyze the website at the College of Technology Adisutjipto (STTA) Yogyakarta from the point of view of the user interface and user experience that is part of the Human Computer Interaction (HCI), in order to evaluation and follow-up the website STTA to better meet expectations of users / visitors. The test result can be concluded that website STTA has Usability and Quality of Information is good, and Content, Pleasure, Classic Aesthetics, Expressive Aesthetics is enoug
Studi Tentang Upaya Peningkatan Jumlah dan Kualifikasi Teknisi Pesawat Udara Di Indonesia
No full textThe development of the aviation industry in Indonesia increased significantly the last few years, so it is necessary adequate Aircraft Technician/Engineer (TPU), both the number and qualifications. The problem is, the amount of TPU in Indonesia is very limited and the majority academic level only senior high school, it making less competitive. The purpose of study to find out efforts to increase the number and qualifications of TPU by PT GMF Aero Asia Garuda Group (GMFAA) is cooperating with six universities in Indonesia to produce TPU with D-III level. Studies done by observation, interview and direct involvement at the Basic Aircraft Maintenance (BAM) for instructor, organized by GMFAA for 1,920 hours. The data were analyzed descriptively to obtain qualitative research. The study shows that in the first batch (2015-2016) has trained 16 lecturers of 6 universities to conduct AMTO class at each campus. In the first year (2015) has opened AMTO classes at six campuses with 226 students and 216 in the second year (2016). From the 4th year (2018) will certainly be produced aircraft technician/engineer with D-III qualifiers at least 200 people, so it's very helpful to accelerate the fulfillment of TPU in Indonesia Keywords— Aircraft Technician/Engineer, maintenance, AMT
Performa Pembakaran Kompor Biogas Menuju Desa Mandiri Energi di Yogyakarta
No full textBiogas is an alternative energy sources as a substitute for fossil fuels in household activities daily, but there are obstacles in the use of biogas, namely the difficulty of arranging a flame that is stable and fuel consumption relatively less efficient biogas. So it takes a design development system that will produce a burning stove produces biogas-fueled stove fits the purpose of research, on the other hand biogas stove should be simple, cheap production price, maximum efficiency and safe to use. Stages in the study include: desk assessment, creation of objective requirements desing, manufacture conceptual and basic design, manufacture real stove. As for knowing the performance of the stove carried ujji stove performance are: test flame stability and efficiency. The results showed that the efficiency of the biogas stove design results in only 31 percent higher than the efficiency of biogas stoves old design, while the fuel consumption of biogas stoves new design is 16 percent lower when compared with fuel consumption of biogas stoves old design. In terms of manufacture and ease of repair and maintenance of gas cookers new design is more easily repaired and easy to make and simple in form compared with the old design biogas stoves. Keywords— design, efficiency, biogas stoves, fuel consumptio
Pengaruh Load Balancing Pada Pemrosesan Paralel untuk Kompresi Video
No full textCommunication and multimedia, especially video data processing require very high resource both computing resources and communication traffic. This requires high-end machines such as servers with high specifications are of course very expensive. This results builds a web based application that implements the concept of parallel processing with load balancing process based CPU Usage to compress video files with FFmpeg software.The results are conditioned compression has half the resolution of the original video data. Based on the test results indicate with load balancing process parallel concepts used, the compression process showed an average speed up value of 8.07% faster than paralle Non load balancing process with 2 compressors, 37.57% with 3 compressors, and 41.24% with 4 compressors. The level of processor efficiency by 28.76% more efficient than paralle Non load balancing process with 2 compressors, 37.57% with 3 compressor, and 41.24% with 4 compressors. Keywords: pemrosesan paralel, kompresi video, Load Balancing, CPU Usag
Pemrosesan Paralel pada Low Pass Filtering Menggunakan Transform Cosinus di MPI (Message Passing Interface)
No full textParallel processing is a process of calculating two or more tasks simultaneously through the optimization of the computer system resource, one treatment models is a desktop system. The model allows to perform parallel processing between computers with specifications different computers. An implementation of a model network of workstations using MPI (Message Passing Interface). In this study, applied to the case of the low-pass filtering (LPF), a process in the image or the image of the shape of the filter that retrieves the data at low frequencies. filtering programs lowpass using the cosine transform MPI implemented by modifying the algorithm in the process on each node (computer). Depending on the test results, so that the processing speed of a parallel system is influenced by the number of nodes / processes and the number of frequency components that are processed. In the treatment of single larger process, the time it takes more and more and the value prop affects only the amount of high frequency data is filtered on the field. While parallel processing of more and more computers involved in the filter calculation process low-pass, plus the time required to perform the calculation
ANALISA TOTAL PRODUCTIVE MAINTENANCE MESIN CINCINNATI DI PT. DIRGANTARA INDONESIA
No full textThe creation of a good product PT. DIRGANTARA INDONESIA assisted with production machines, one of which is the machine CNC MACHINE (DOUBLE CINCINNATI Milacron gantry ALUMINIUM TYPE-F), the role of a machine type-f CNC machine itself is very influential in the existing production process at PT. DIRGANTARA INDONESIA. The lack of treatment systems for the repair and replacement of components caused because the machines that is already beyond the age of many techniques, resulting in the production of the company to become unstable.In this study used methods Overall Equipment Effectiveness (OEE) and the concept of autonomous maintenance and using Failure Mode and Effect Analysis (FMEA) to determine analyze potential errors or failures, it is advisable to keep using autonomous maintenance as minor maintenance. Analysis and discussion of the results obtained OEE decline in 2014 to 2015 is 86.15% to 75.62% drop is due to the low value avalaibility, and get the highest objective value RPN 441 on a 40 point damage to component Servo Off. Solutions to make improvements to enable the Total Productive Maintenance in which includes Autonomous Maintenance. Keywords: Total Productive Maintenance (TPM), Overall Equipment Efectiveness (OEE), Autonomous Maintenance, Failure Mode and Effect Analysis (FMEA