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Endah Yuniarti, Endah
Universitas Dirgantara Marsekal Suryadarma
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Peningkatan Motivasi Belajar Siswa SMK Tentang Aeronautics Science Melalui Metode Demonstrasi Mini Wind Tunnel di SMK Angkasa 01 Halim Perdanakusuma Endah Yuniarti; Mufti Arifin; Amat Chaeroni; Syaiful Rifki
JURNAL Comunità Servizio : Jurnal Terkait Kegiatan Pengabdian kepada Masyarakat, terkhusus bidang Teknologi, Kewirausahaan dan Sosial Kemasyarakatan Vol. 5 No. 2 (2023): OKTOBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Univesitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cs.v5i2.4700

Abstract

In the Aviation Vocational High School curriculum, especially in the Physics Subject there is the basic science of Aeronautics, namely Fluid Dynamics. One of the obstacles in studying fluid dynamics is the difficult depiction and the rare props. One of the props that are appropriate and used in the aviation is a wind tunnel. Community service activities in the form of demonstrations and assistance in making mini wind tunnels that have been carried out can be a solution to the problem of misconceptions about fluid dynamics in students of SMK Angkasa 01 Halim Perdanakusuma. The activity was carried out using a survey method regarding the profile of misconceptions about fluid dynamics, demonstration of the Bernoulli principle, and assistance in making a mini wind tunnel. The activity was attended by students of class X and XI which was held from 14 to 20 June 2022 which was divided into 2 (two) sessions, namely a wind tunnel demonstration and assistance in making a mini wind tunnel. Measurement of the level of understanding of Aeronautics Science was carried out 3 (three) times, namely before and after the demonstration and after assisting in the construction of a mini wind tunnel. The result of the first questionnaire is that most of the students have not studied Fluid Dynamics. The results of the second questionnaire were quite significant, where Aeronautics Science knowledge increased after participating in PKM activities. The results of the third questionnaire concluded that there had been a change in the level of Aeronautics Science knowledge of students who took part in making a mini wind tunnel. Keywords: Aeronautics science; Fluid Dynamic; mini wind tunnel;
SIMULASI NUMERIK FLOAT PESAWAT 19 PENUMPANG DENGAN STRUKTUR CARBON-EPOXY COMPOSITE KETIKA LANDING DI PERMUKAAN AIR: NUMERIC SIMULATION OF 19 PASSENGER AIRCRAFT FLOAT WITH CARBON-EPOXY COMPOSITE STRUCTURE WHEN LANDING ON THE WATER SURFACE Dwi Juniarsah, Fahri; Sitompul, Sahril Afandi; Yuniarti, Endah
Jurnal Teknologi Kedirgantaraan Vol 8 No 1 (2023): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v8i1.67

Abstract

The 19-passenger aircraft can be modified into a seaplane by providing it with a floating device in the form of a float. The use of float is very advantageous because it does not change the configuration of the fuselage much, but the mass and design of the float must be adjusted so that the performance of the aircraft does not decrease. Impact between the water and the float structure can create critical loads or even cause structural damage. The purpose of this research is optimizing the direction of the composite fiber by comparing the four arrangement of fiber directions by looking at the results of the Tsai-Hill failure criteria. In addition, the finite element method simulation is carried out in static simulation conditions to determine the response of the float structure with Carbon-epoxy material due to static loading based on variations in pressure loads during landing and to determine the effect of composite thickness on pressure distribution. which is applied to the bottom surface of the float. From the analysis, it was found that the most optimal fiber direction was [0o2/45o2/-45o2/90o2]s with a composite thickness of 2 mm. The biggest displacement is at the back of the float. In the condition of the pressure load when VS0 the received stress is 202.422 MPa. The current received stress VREF 352,927 MPa. When the speed is 70 knots, the received stress is greater, namely 437.876 MPa with a Tsai-Hill value of 0.2622. This indicates that Carbon-epoxy is ideal for use as a float material because of its resistance to high stresses.
Analisis Keterlambatan Penyelesaian C-check: Delay Maintenance Martina, Ayu; Suwondo, Edy; Yuniarti, Endah
Jurnal Teknologi Kedirgantaraan Vol 8 No 1 (2023): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v8i1.76

Abstract

PT XYZ is one of the air transportation companies in Indonesia that experienced delays in completing C-check maintenance based on a predetermined schedule. The TAT (Turn Around Time) indicator is used to measure the performance in completing the maintenance at PT XYZ. This research aims to determine the factors that cause maintenance delays on the B737NG aircraft and minimize TAT delays. This research uses fishbone diagrams and Pareto diagrams to find the root causes. There are three main factors that cause the delays, namely due to lack of manpower, the process of waiting for material supply, and the length of time to process the findings. In order to strengthen the analysis, this research uses the Define Measure Analyze Improve Control (DMAIC) method with the support of FMEA to develop a table for the RPN values or risk priority scale. The calculation results show that the highest RPN value is not paying attention on the ratio of work to manpower, which gives an RPN value of 216. Then a solution is recommended to reduce the RPN value to become value 168 where the aim is to reduce the TAT delay in completing the C-check maintenance of PT XYZ’s Boeing 737NG aircraft.
Analisis Perbandingan Performa Saat Takeoff Pada Engine CFM56-7b Dengan Konfigurasi Thrust Rating 26300 Lbs Dan 27300 Lbs Setiyawati, Defi; Alimin, Edy K.; Yuniarti, Endah
Jurnal Teknologi Kedirgantaraan Vol 7 No 1 (2022): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v7i1.51

Abstract

The CFM 56-7B engine is manufactured by CFM International which is used on the B737-600/700/800/900 aircraft. This engine has several variations of the thrust rating with varying performance. Engine performance parameters include Thrust, Specific Fuel Consumption (SFC), Core Speed (N2), and Exhaust Gas Temperature (EGT). Performance testing can be done using the Engine Test Cell. However, the engine test cell is a calibrated tool, which allows deviation of the test results. Then the performance calculation is done using the formula in the Engine Shop Manual - Test 003 - Engine Acceptance Test to find out the engine performance during the takeoff phase at the highest thrust rating of 26300 lbs and 27300 lbs and compare the performance of the two engines. Comparison of the calculation results states that an engine with a thrust rating of 26300 lbs is superior to Exhaust Gas Temperature, while an engine with a thrust rating of 27300 lbs has advantages at Thrust, Specific Fuel Consumption and Core Speed (N2).
Rancang Bangun Alat Peraga Up Lock Box Pada Nose Landing Gear Pesawat ATR 72 Untuk Media Pembelajaran Septian, Diaz; Arifin, Mufti; Yuniarti, Endah
Jurnal Teknologi Kedirgantaraan Vol 7 No 2 (2022): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v7i2.54

Abstract

Abstract - Airplane is a very important mode of transportation, one of which is ATR aircraft. In this study, the type of aircraft used was the ATR 72-600 aircraft. One of the safety factors that need to be considered on aircraft is the landing gear system. The landing gear system regulates the wheel system on the aircraft for landing and also taking off. Given the importance of ensuring that the plane's wheels are securely locked or not, an up lock box system is needed on the landing gear. In the Up Lock Box system, it is not directly visible from the outside so that the working mechanism is not widely known. This study aims to determine the workings of the up lock box nose teaching aid system on the landing gear and to make a trial up lock box nose teaching aid on the landing gear. The research method begins with a literature study, then looks for design references, namely from the ATA 32 training manual. After that, make a design using the image of the up lock box from the ATR 72 aircraft, assemble the demonstran tool, calibrate and test the demonstran tool. The conclusions in this study are, how the up lock box teaching aids work in accordance with the up lock box working concept in the training manual, the results of the design and manufacture of props accompanied by modifications, as well as the test results on up lock box props in accordance with the up lock work concept box. The size of the props that have been made has a length of 37.8 cm and a width of 16.2 cm.
Analisis Angkutan Kargo Antara ATR 72-600 Passenger, ATR 72-600 Freighter Dan ATR 72-600 Converted Pada Rute Makassar – Kendari Somadi, Ridho Misbahudin; Arifin, Mufti; Yuniarti, Endah
Jurnal Teknologi Kedirgantaraan Vol 7 No 2 (2022): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v7i2.57

Abstract

Delivery of goods (cargo) between islands or between countries is faster by air transportation. Air cargo can use passenger aircraft (bulk cargo), Air freighters, Combined air freighters, Converted freighters for the same type of aircraft, such as ATR 72-600. This study discusses fuel consumption, comparison of payload capacity, and comparison of fuel consumption per payload of ATR 72-600 aircraft for the Makassar – Kendari route. namely the ATR 72-600, ATR 72-600 Freighter and ATR 72-600 Converted aircraft. The method used is a quantitative method. The results of the calculation using the flight crew operation manual for ATR 72-600 passenger fuel carried 1.143,4 kg and fuel consumption of 609.4 kg, ATR 72-600 Freighter and Converted aircraft carried 1.210,3 kg of fuel and 613,3 fuel consumption, 4 kg. Fuel costs per kg of cargo, ATR 72-600 Passenger aircraft are more expensive, namely Rp. 1,279 per kg, freighter Rp. 1,136 per kg, converted bulk cargo Rp. 1,175 per kg, Converted Large cargo door Rp. 1,202 per kg. The largest Cargo capacity is 9,000 kg on ATR 72-600 Freighter aircraft and the smallest is 2,150 on ATR 72-600 Passenger aircraft. If cargo delivery does not exceed 2,150 kg, it is more profitable to use ATR 72-600 passenger aircraft, but if the weight or volume sent much larger should use the ATR 72-600 Freighter.
ANALISIS PERFORMA PESAWAT ATR 72-500 SEBAGAI PESAWAT CHARTER RUTE BANDARA HALIM PERDANAKUSUMA-MATAK DAN HALIM PERDANAKUSUMA- BADAK BONTANG FORTUNE JR OMBUH; Mufti Arifin; Endah Yuniarti
Jurnal Teknologi Kedirgantaraan Vol 8 No 1 (2023): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v8i1.81

Abstract

With the area and geography of Indonesia consisting of small islands, causing the difficulty of exploration efforts of Natural Resources (SDA) in these small islands. Companies that carry out these exploration activities must build supporting facilities to facilitate the exploration process in the area. The airport is one of the supporting facilities built by the company for exploration activities. The airport built by the company to support this air transportation, must be built according to the land and needs of the company, one of which is the runway. With limited runways, many companies use ATR 72-500 aircraft as charter aircraft to support exploration activities in areas far from commercial airports. Therefore, an analysis of the performance of the ATR 72-500 aircraft as a charter aircraft with the Route Halim Perdanakusuma Airport (HLP) -Matak (MWK) and Halim Perdanakusuma Airport - Badak Bontang (BXT) to determine operational costs. The performance of the ATR72-500 aircraft is seen from the take-off performance needed, range, fuel consumption, and payload. On the route HLP-MWK with 68 passengers traveled with a distance of 577 NM requires fuel as much as 2,456 kg with TOW 22,342 kg, while for take-off requires runway length of 1056 m, operating costs of Rp. 235.535.469, 92 and the cost per passenger is Rp. 3.463.756,91. For the route HLP-BXT with 68 passengers traveled with a distance of 742 NM requires fuel as much as 2.584, 862 kg with TOW 22.471 kg, while for take-off requires runway length of 1068 m, operational costs of Rp. 247.891.620, 16 and the cost per passenger is Rp. 3.645.465.
Analisis Keandalan Business Class Seat Terpasang Di Pesawat A330-200/300 Garuda Indonesia Aditia Kusuma Wibawa; Freddy Franciscus; Endah Yuniarti
Jurnal Teknologi Kedirgantaraan Vol 8 No 1 (2023): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v8i1.82

Abstract

From January 1, 2021 to June 30, 2021, the AIRBUS A330-200/300 aircraft belonging to PT Garuda Indonesia has experienced 36 cases of damage to the business class seat. These cases most often occur due to external factors on the seat. often damaged by crew of flight attendants as well as technicians working. In the study that discussed the factors that caused the failure of the recline mechanism on the B/E Aerospace Minipod Seat and B/E Aerospace MCX Diamond Seat, then aimed at finding a comparison of reliability and cost benefits with the fishbone method. From the results of the study, it was found that the reliability score obtained with the MAREP rate on the B/E Aerospace Minipod seat was 5.798/1000FH and the B/E Aerospace MCX Diamond seat was 5.551/1000FH. As for the maintenance costs, the results obtained on the B/E Aerospace Minipod require a total cost of US$ 9,587.59 with an average maintenance seat price of US$ 24.21/seat and B/E Aerospace MCX Diamond is US$ 5,134.24 with an average treatment seat of US$ 53.48/seat in beetwen 6 months.
Initial Modelling of Bird Strike by Numerical Simulation in Varied L/D Ratio of Bird Geometry Yuniarti, Endah; H, Simon Shindu; Sitompul, Sahril Afandi
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/senatik.v4i0.165

Abstract

This research studies influence of bird geometry on impact pressures during bird strike, namely Hugoniot and Stagnation pressure through initial modelling by numerical simulations. Bird geometry is capsule or cylinder with hemisphere end. The geometry is simulated with different L/D ratio, 1.4, 1.6, 1.8 and 2.0. Elastic-plastic hydrodynamic material model is used in simulation. Bird model simulation are using lagrangian method and initial velocities are 200 m/s. The results show variation of L/D ratio provide Hugoniot pressure 10-19 times higher than stagnation pressure in L/D = 1.4, 8-18 times in L/D = 1.6, 9-17 times in L/D = 1.8 and 4-16 times in L/D = 2. Hugoniot pressures show higher in ratio L/D = 1.8 and lower in ratio L/D = 1.6. Stagnation pressure show higher in ratio L/D = 2.0 and lower in ratio L/D 1.4.
Analisis Respon Dinamik Windshield Pesawat Komuter 19 Penumpang Terhadap Fenomena Bird Strike Menggunakan Metode Coupled Eulerian-Lagrangian (CEL) Tambunan, Pangihutan; Warsiyanto, Budi Aji; Yuniarti, Endah; Fitriansyah, Rizky
Jurnal Mahasiswa Dirgantara Vol. 2 No. 2 (2023): Jurnal Mahasiswa Dirgantara
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jmd.v2i2.26

Abstract

Fenomena tabrak burung sering terjadi pada saat operasi pesawat terbang yang menyebabkan kerusakan fatal pada struktur pesawat dan mengancam keselamatan operasi penerbangan. Kerusakan struktur pesawat dapat menyebabkan kecelakaan dan korban jiwa. Untuk menunjang keselamatan penumpang pesawat terbang, setiap komponen pada pesawat harus lulus uji. Windshield merupakan komponen yang harus diuji untuk memenuhi persyaratan sertifikasi pada kasus bird strike berdasarkan regulasi keselamatan penerbangan sipil atau Civil Aviation Safety Regulation (CASR) subbagian 23.775. Tujuan tugas akhir ini adalah untuk mengetahui respon dinamik windshield terhadap variasi parameter tumbukan dan kegagalan material windshield. Pada simulasi ini, bentuk material dari burung menggunakan jenis EOS Tabular dan material windshield menggunakan polimetil metakrilat. Untuk pemodelan windshield dan burung menggunakan metode Coupled Eulerian-Lagrangian (CEL). Pada variasi kecepatan, parameter tumbukan yang menyebabkan respon dinamik windshield berupa deformasi elastis, plastis, kegagalan paling besar terjadi pada kecepatan 80 m/s dan pada variasi sudut, kegagalan paling besar terjadi pada sudut tumbukan -150. Area lubang baut bagian atas lebih rentan terjadi kegagalan material dikarenakan adanya konsentrasi tegangan.
Co-Authors AA Sudharmawan, AA Abdillah, rizki Ade Aditia Kusuma Wibawa Adnan Agus Bayu Ahmad Akmal Said Aji W, Budi Alam, Ganda Tri Albi Nuari Hastono Alimin, Edy K. amat chaeroni Ananda Rafi Rijalul Awwal Ashari, Muhammad Yazid Ayu Martina Bekti Yulianti Borris Y Maningka Budi Aji Warsiyanto Candra Pranoto Cynthia Rahmawati Dwi Juniarsah, Fahri Edy K. Alimin Edy Suwondo, Edy Enggar Kristian Erlangga, Noval Erna Shevilia Agustian fahmins Fairuza, Syarifah Femlee R, Brity fitriansyah, Rizky FORTUNE JR OMBUH Freddy Franciscus Ganjar Muhammad Nur H, Simon Shindu Hardiansyah, Haidar Israq Mifan Junaidi Jan Setiawan Jauharul Akfiya sudjaelan Kusdi Prijono Mahasir, Mahasir Maulana, Ichsan mokhamad khoiruddin muftiarifin Muhamad Jayadi Muhammad Hadi Widanto Musthofa, Ilham MUSTIKO, PANGGIH JOGO Nila Safiana Sari Nurrohmad, Abian Pramana, Nurhadi Rafika Arum Sari Rayhan Zhafrando, Muhammad Riskha Agustianingsih Rizky fitriansyah S Afandi Sitompul Sahril Afandi S Said, Ahmad Akmal Septian, Diaz Setiyawati, Defi Simon Sindhu Hendradjaja Sitompul, S Afandi Slamet Priyono Somadi, Ridho Misbahudin Sopyan Gigih Nugraha Sungkono suryawan, ryan firdiansyah Suryo O, Ari Suwardi, Arie Prasetya Syaiful Rifki Tambunan, Pangihutan Tri Susilo Tri Widayatsih Utama, Agus Bayu Wildan Sofary Darga