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Vortex

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Published by Institut Teknologi Dirgantara Adisutjipto

ISSN : 27216152 EISSN : 30217601 DOI : https://doi.org/10.28989/vortex

Core Subject : Science, Engineering,

Aerospace Engineering Earth & Planetary Sciences Energy Materials Science & Nanotechnology Mechanical Engineering

Vortex merupakan jurnal ilmiah dalam diang dirgantara dengan cakupan Perancangan Pesawat Terbang, Perawatan Pesawat Terbang, Operasi Penerbangan, Mesin Pesawat Terbang dan Elektronika Penerbangan

Arjuna Subject : Ilmu Material (semua kategori) - Logam dan Paduan Logam

Articles 86 Documents

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THE UTILIZATION OF BAMBOO WASTE AS A NEW ALTERNATIVE MATERIAL IN THE AIRCRAFT FUSELAGE INTERIOR PANEL STRUCTURE Lado Rislya Prakasa
Vortex Vol 2, No 1 (2021)
Publisher : Institut Teknologi Dirgantara Adisutjipto

In the aircraft manufacturing industry, the strength and weight of the material is one of the important considerations in structural design. Composite material is a material composed of two or more forming materials, each of which has different mechanical properties. Aircraft structure in this era are 50 - 80% composed of glass or carbon fiber composite materials as reinforcement. Unfortunately, these fibers when recycled produce harmful CO gas, difficult to degrade naturally and cause itching when in contact with human skin. For this reason, environmentally friendly and strong fibers are needed to replace the role of glass or carbon fibers. Is a bamboo plant, which is abundant in Indonesia which is considered suitable as a substitute material. In this study, a mechanical test and descriptive analysis were carried out on the strength of the composite material with variations in the types of bamboo fibers apus, wulung, tutul and petung. These fibers are arranged with epoxy resin and hardener as a binding material (matrix). And each fiber will be arranged in 0 ° pattern to the matrix. Then each material with a different fiber type will be tested for tensile and bending to obtain the value of stress and strain that occurs at its maximum loading. And the result is the average tensile stress value (Mpa) composite material of apus bamboo is 75.95, wulung bamboo 49.92, petung bamboo 112.73, tutul bamboo 83.85. Then the average bending stress (Mpa) composite material of apus bamboo was 239.073, wulung bamboo 214.236, petung bamboo 249.67, tutul bamboo 272.79. With this result, bamboo fiber composites are considered to be able to replace the role of carbon or glass fibers, as an alternative composite material in some parts of the interior fuselage of aircraft panels. Keyword: Composites material, Matrix, Bamboo Fibers, Carbon and Glass Fibers, Stress and Strain.

BENDING STRENGTH OF HYBRID COMPOSITE OF GLASS AND NATURAL FIBER PHINEAGE LEAVES Muhammad Fachnoor Latuconsina; Istyawan Priyahapsara
Vortex Vol 2, No 2 (2021)
Publisher : Institut Teknologi Dirgantara Adisutjipto

The development of composite fibers has developed very much, and to reduce the environmental impact, composite fibers use natural fiber alternatives. The development of composite fibers has developed very much, and to reduce the environmental impact, composite fibers use natural fiber alternatives. One of the natural fibers that are commonly used is natural fiber from pineapple leaves, where natural fiber from ananas leaves is still very minimal in its commercial use and is only considered as waste

PENGEMBANGAN AWAL ALGORITMA PROGRAM ANALISIS PERFORMA LANDASAN PACU TERHADAP BERAT TAKE-OFF PESAWAT Dewi, Gladis Tiara Andan; Nasution, Muhammad Ridlo Erdata; Gunawan, Gunawan
Vortex Vol 3, No 2 (2022)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Pengembangan algoritma suatu program analisis performa landasan pacu terhadap berat take-off pesawat dilakukan untuk memfasilitasi analisis pada bandar udara secara umum. Dalam hal ini, metode ACN-PCN dan ARFL digunakan pada algoritma yang dibuat. Algoritma kemudian diimplementasikan pada kode program yang ditulis dengan GNU Octave dan dicoba untuk dijalankan dengan menggunakan data bandar udara Depati Amir serta tiga jenis pesawat berbeda, yaitu ATR 72, Boeing 737-800, dan Boeing 777-300ER. Berdasarkan hasil yang diperoleh, program berhasil melakukan analisis kemampuan pengoperasian take-off pesawat termasuk mengindikasikan ada tidaknya batasan operasional ketiga jenis pesawat terhadap kondisi landasan pada bandar udara acuan.

FIBER GLASS WR600 COMPOSITE JOINTING STRENGTH Istyawan Priyahamsara; Ahmad Kurnia Mas Pratama
Vortex Vol 1, No 2 (2020)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Pengujian yang dilakukan hanya untuk mendapatkan nilai kekuatan sambungan atau kekuatan penggabungan terhadap uji tarik. Dari data yang diperoleh, nilai rata– rata yang didapatkan pada spesimen yang menggunakan metode adhesive bonding adalah sudut 0 18,355. Sudut 30 27,665 sudut 45 23,354 sudut 60 18,781. Hal ini dapat diliat dari mode kegagalan yang dialami oleh sambungan atau penggabungan tersebut. Metode adhesive bonding memiliki perbedaan besar nilai kekuatan antara spesimen sudut 0 , sudut 30 ,sudut 45 , sudut 60 Nilai rata-rata kekuatan tarik yang dimiliki oleh spesimen adalah sudut 0 18,355. Sudut 30 27,665 sudut 45 23,354 sudut 60 18,781 yang terbesar ialah sudut 30 sebesar 37,665 dan yg terendah sudut 0 18,35.

SENSOR SYSTEM DESIGN FOR PROPELLER TEST BENCH Nurul Ihsan; Denny Dermawan; Lazuardy Rahendra P
Vortex Vol 2, No 2 (2021)
Publisher : Institut Teknologi Dirgantara Adisutjipto

The sensor system is a system that functions to detect signals that come from changes in energy such as electrical energy, physical energy, chemical energy, biological energy, mechanical energy, and so on. The propeller test bench is an propeller performance testing platform prior to propeller installation on an aircraft to ensure engine suitability. The purpose of this design is to test the performance capability of the engine with the right sensor system measurement tool so that it can generate the value of thrust, rpm speed, and the temperature of an engine which will be designed to be used in the learning process to support propulsion practicum activities. The method used in this research is an experimental method of sensor system design. The design of the sensor system consists of a tachometer as a rpm measurement sensor, a thermostat as a sensor to measure the temperature of the propeller spool and temperature of the engine fin, and also a load cell as a sensor to measure the thrust value.The sensor system test results were then validated using the measurement results by the sensor manufacturer. The test was carried out on a wood-type propeller measuring 22 x 8 chords 4,5 cm and 5 cm. Based on the test results, it is known that the chord wood type propeller is 4,5 cm, at the maximum rpm is 7021.7, the resulting thrust value is 6.75. In testing the 5cm chord wood type propeller shows the maximum speed of 6977.5 produces a thrust of 6.95. Validation was carried out on the measurement results of rpm and thrust, the average error factor obtained for 4,5 cm chord wood type propeller was 0.783%, while for 5 cm chord wood type propeller the average error factor obtained was 1.0582%. From the resulting average error, it can be concluded that the measuring instrument for this sensor system has good accuracy

CASE ANALYSIS ON FLIGHT CONTROL SYSTEM SIKORSKY S76 C++ FAILURE FROM YAW CONTROL ASPECT Rahmawati, Fajar Khanif; Lukito, Indro; Baihaqi, M Imam
Vortex Vol 3, No 1 (2022)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Flight Control is a system that functions as a helicopter control center. Failure that occurs in flight control would certainly result inconvenience of the pilot in operating the helicopter, even the movement of the helicopter can out of control causing incident or accident. The continuity of the helicopter operation is affected by the maintenance system applied. One of mode moving system helicopter is yaw control, that could control the nose helicopter to move right and left. Fault Tree Diagram could described analytical technique, whereby an undesired state of the system is specified (usually a state that is critical from a safety or reliability standpoint). The system then analyzed in the context of its environment and operation to find the solution. Based on the analysis results of failures that occurred in the Sikorsky S76 C ++ helicopter flight control from yaw control aspect in the period of January 2015 to May 2018 with an average use of helicopter’s 2092.05 flight hours, there were 46 failures which caused by yaw control. Based on diagram, there were 4 basic events which caused unschedule maintenance on Sikorsky S76 C ++ helicopter flight control system because of yaw fail control, so that a replacement or repair was needed for the components that affected to the system failure.

STUDY OF RUNWAY DEVELOPMENT AT SUPADIO PONTIANAK INTERNATIONAL AIRPORT ON THE OPERATION OF A330-300 AIRCRAFT Muhammad Wartino
Vortex Vol 1, No 2 (2020)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Modes of air transportation are also an option for making Hajj and Umrah trips in Indonesia. At this time the Supadio International Airport is extending the runway which was originally 2250 meters to 2600 meters. So, it is expected to be able to operate A330-300 aircraft for Hajj and Umrah flights. The method used in this research uses the calculation of ARFL (Aerodrome Reference Field Length), ACN-PCN (Aircraft Classification Number-Pavement Classification Number), runway width analysis and runway strips analysis From the results of research and analysis conducted with the runway extension of 2600m × 45m with runway shoulders 2m and PCN number 51/F/D/X/T A330-300 aircraft cannot operate at Supadio International Airport. So, that the runway development needs to be developed to 3097m × 45m with runway shoulders 7,5m and PCN number of 89/F/D/X/T. So, that A330- 300 aircraft can operate for Hajj flights in Pontianak

MOVEMENT PROJECTION OF AIRCRAFT PASSENGERS AT HALIM PERDANA AIRPORT Anita Yulyanti
Vortex Vol 2, No 1 (2021)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Air transportation is increasingly in demand.. Airports as a gathering place for passengers must be prepared to face this increase in the number of aircraft passengers.This increase in airplane passengers certainly affects and is influenced by various socio-economic factors, including: population, number of hotels, number of tourists, GRDP (Gross Regional Domestic Product), and number of train passengers. Halim Perdana Kusuma Airport could be considered as new airports in Indonesia because it has only been used for commercial flights for 7 years starting from opening for public flights in 2014. This airport has visually increased the number of passengers each year so it is suitable as an object of research. Calculation of the estimated increase in airplane passengers at the airport can be done using a multiple linear regression method, while to find out how much influence the size of the increase in airplane passengers and socio-economic factors can use the correlation coefficient search

EXPERIMENTAL STUDY OF COOLING SPRAY METHOD ONTO INCLINED HEATED SURFACES Wibowo, Teguh; Hermawan, Dedet; Prakoso, Agung
Vortex Vol 3, No 1 (2022)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Single droplet impingement onto inclined heated surface is studied experimentally. Droplet in the form of aquades is dropped from a fixed height 70 mm to the metal surface with 45º impact angle. This experiment uses 3 types of metals; Stainless Steel AISI 304, Aluminum Alloy 2024, and Copper. All material surfaces are mirror polished and assumed to have the same surface treatment condition. Surface temperatures are 110 ºC, 150 ºC and 210 ºC to determine droplet behavior characteristics. The droplet has 3.0 mm diameter and 28.5 Weber Number (low impact category). In order to analyze droplet behavior in slow motion high velocity camera 4000 fps (frames per second) is used with image resolution 1024 x 768. Data obtained then processed using MATLAB image processing technique to analyze sequence of images visually and quantitatively to determine several parameters; spreading ratio, dimensionless height and contact time.The results showed droplets have different behavior characteristics even at the same surface temperature. Droplet contact time on the copper surface is shorter than aluminum and stainless steel. This is because droplets experienced bouncing due to film boiling regime takes place earlier. Maximum spreading ratio of stainless-steel surfaces is higher than copper because changes of boiling regime on stainless steel surfaces are slower and droplet is still experiencing spreading on the surface

ANALYSIS OF THE EFFECT OF BYPASS RATIO ON PERFORMANCE ENGINE CFM56-5A1 IN CRUISING CONDITIONS opri surya yustinoto
Vortex Vol 1, No 1 (2020)
Publisher : Institut Teknologi Dirgantara Adisutjipto

The value of engine performance is known to decrease and increase with increasing and decreasing variation of the value of the parameter bypass ratio, so that if the value of these parameters is greater, then the fuel consumption when the aircraft operates will be less and the thrust will decrease. In addition to changing the value of the specific fuel consumption due to the influence of the bypass value, variations in altitude are also very influential where the higher the aircraft, the resulting specific fuel consumption value will be smaller

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Home Page

OAI Link

Editorial Team

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Contact Name Istywan Priyahapsara

Contact Email itywan@itda.ac.id

Phone +6287839258012

Journal Mail Official herowintolo@itda.ac.id

Editorial Address https://ejournals.itda.ac.id/index.php/vortex/pages/view/editor

Location Kab. bantul, Daerah istimewa yogyakarta INDONESIA

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Istywan Priyahapsara

Contact Email
itywan@itda.ac.id

Phone
+6287839258012

Journal Mail Official
herowintolo@itda.ac.id

Editorial Address
https://ejournals.itda.ac.id/index.php/vortex/pages/view/editor

Location
Kab. bantul,

Daerah istimewa yogyakarta

INDONESIA