Pub Date : 2023-06-29DOI: 10.28989/vortex.v4i2.1693
Syahmi Perkasa, F. Rahmawati
The Boeing aircraft is the newest variant of the Boeing 737 aircraft. During operation, various problems will certainly be found. One of the problems that occurs is the failure of the APU Lubrication System. The right type of maintenance is needed to minimize or prevent failure. The method used is the Failure Mode and Effect Analysis (FMEA) and Risk Priority Number (RPN) methods. The first step is to identify failures in each component. each failure mode and failure effect that occurs in each component is translated into the FMEA table. The conclusion obtained is identification of failures that occur in the APU lubrication system, namely there are 22 failures in the APU lubrication system, 11 cases of Oil clog failure, 7 cases of Oil leak failure, 4 cases of Oil Temperatue failure. Failure cases that have a high critical failure modes are oil clog with an RPN value of 288 and oil leak with an RPN value of 256, while moderate critical failure modes is oil temperature with an RPN value of 168.
{"title":"ANALISIS KEGAGALAN LUBRICATION SYSTEM AUXILIARY POWER UNIT (APU) PESAWAT","authors":"Syahmi Perkasa, F. Rahmawati","doi":"10.28989/vortex.v4i2.1693","DOIUrl":"https://doi.org/10.28989/vortex.v4i2.1693","url":null,"abstract":"The Boeing aircraft is the newest variant of the Boeing 737 aircraft. During operation, various problems will certainly be found. One of the problems that occurs is the failure of the APU Lubrication System. The right type of maintenance is needed to minimize or prevent failure. The method used is the Failure Mode and Effect Analysis (FMEA) and Risk Priority Number (RPN) methods. The first step is to identify failures in each component. each failure mode and failure effect that occurs in each component is translated into the FMEA table. The conclusion obtained is identification of failures that occur in the APU lubrication system, namely there are 22 failures in the APU lubrication system, 11 cases of Oil clog failure, 7 cases of Oil leak failure, 4 cases of Oil Temperatue failure. Failure cases that have a high critical failure modes are oil clog with an RPN value of 288 and oil leak with an RPN value of 256, while moderate critical failure modes is oil temperature with an RPN value of 168.","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84399763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-29DOI: 10.28989/vortex.v4i2.1665
Raihan Aventa Rakahila, F. Rahmawati
Airplanes as a means of transportation are increasingly becoming the flagship of the community. Along with the many flights today, aircraft are not spared also in carrying out maintenance. Punctuality and efficiency of work in maintenance are the main factors so that the aircraft can operate again on time, so that maintenance requires optimizing the number of mechanics according to the workload. While in fact there are still many treatments that are carried out not in accordance with the time that has been determined. This delay is very undesirable by both parties, because it will be detrimental in terms of time and cost. Therefore, careful aircraft maintenance planning and structured work lines must be carried out so that maintenance can be carried out as desired. The method used is the Critical Path Method (CPM), which is a network critical path method that uses linear time balance. Each activity can be completed faster than normal time by bypassing the activity for a certain fee. In the Critical Path Method (CPM) method, forward calculations and backward calculations are carried out so as to get the results of the critical path (slack). From the results of the analysis, it was found that the value of man hours needed was 89.52 man hours, while the value of man hours needed based on the company's calculation results was 97.43 man hours. There are differences in the results of man hours obtained by the author with from the company.
{"title":"ANALISIS PERAWATAN PERENCANAAN PHASE 25 DI BATAM AERO TECHNIC (BAT) SM-SUB","authors":"Raihan Aventa Rakahila, F. Rahmawati","doi":"10.28989/vortex.v4i2.1665","DOIUrl":"https://doi.org/10.28989/vortex.v4i2.1665","url":null,"abstract":"Airplanes as a means of transportation are increasingly becoming the flagship of the community. Along with the many flights today, aircraft are not spared also in carrying out maintenance. Punctuality and efficiency of work in maintenance are the main factors so that the aircraft can operate again on time, so that maintenance requires optimizing the number of mechanics according to the workload. While in fact there are still many treatments that are carried out not in accordance with the time that has been determined. This delay is very undesirable by both parties, because it will be detrimental in terms of time and cost. Therefore, careful aircraft maintenance planning and structured work lines must be carried out so that maintenance can be carried out as desired. The method used is the Critical Path Method (CPM), which is a network critical path method that uses linear time balance. Each activity can be completed faster than normal time by bypassing the activity for a certain fee. In the Critical Path Method (CPM) method, forward calculations and backward calculations are carried out so as to get the results of the critical path (slack). From the results of the analysis, it was found that the value of man hours needed was 89.52 man hours, while the value of man hours needed based on the company's calculation results was 97.43 man hours. There are differences in the results of man hours obtained by the author with from the company.","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90187631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-29DOI: 10.28989/vortex.v4i2.1658
Krisnadhi Hariyanto, E. Poerwanto, Prasidananto Nur Santoso
SMK Muhamadiyah Sentolo terletak di wilayah Kabupaten Kulon Progo, Mata pencaharian masyarakat di daerah ini 80% adalah petani yang memiliki etos kerja yang baik..Permasalahan yang dihadapi dalam upaya mengembangkan pertanian antara lain menurunnya minat para generasi muda terhadap usaha di bidang pertanian khususnya tanaman padi, hal tersebut disebabkan karena proses pengerjaan terhadap kegiatan pertanian tersebut relatif cukup melelahkan. Sedangkan generasi tua sudah selayaknya diganti untuk kemudian agar kegiatan pertanian terus berlanjut. Penelitian ini melakukan studi komparasi dengan menggunakan teknologi yang mendukung proses pemupukan cair dengan bantuan drone. Metode yang dilakukan adalah dengan membandingkan penggunaan teknologi drone untuk pemupukan dengan teknologi konvensional atau manual pada tanaman padi selama satu kali musim tanam. Hasil penyemprotan drone yang diperlukan untuk pemupukan pada luasan 1 hektar adalah 0.25 jam, pupuk yang dibutuhkan pada luasan 1 hektar adalah 40 liter, kerja yang dibutuhkan pada luasan 1 hektar adalah 160 liter/jam.
{"title":"ANALISIS EFEKTIFITAS DRONE PADA PROSES PEMUPUKAN CAIR UNTUK MENINGKATKAN PRODUKTIVITAS TANAMAN PERTANIAN PADI ORGANIK","authors":"Krisnadhi Hariyanto, E. Poerwanto, Prasidananto Nur Santoso","doi":"10.28989/vortex.v4i2.1658","DOIUrl":"https://doi.org/10.28989/vortex.v4i2.1658","url":null,"abstract":"SMK Muhamadiyah Sentolo terletak di wilayah Kabupaten Kulon Progo, Mata pencaharian masyarakat di daerah ini 80% adalah petani yang memiliki etos kerja yang baik..Permasalahan yang dihadapi dalam upaya mengembangkan pertanian antara lain menurunnya minat para generasi muda terhadap usaha di bidang pertanian khususnya tanaman padi, hal tersebut disebabkan karena proses pengerjaan terhadap kegiatan pertanian tersebut relatif cukup melelahkan. Sedangkan generasi tua sudah selayaknya diganti untuk kemudian agar kegiatan pertanian terus berlanjut. Penelitian ini melakukan studi komparasi dengan menggunakan teknologi yang mendukung proses pemupukan cair dengan bantuan drone. Metode yang dilakukan adalah dengan membandingkan penggunaan teknologi drone untuk pemupukan dengan teknologi konvensional atau manual pada tanaman padi selama satu kali musim tanam. Hasil penyemprotan drone yang diperlukan untuk pemupukan pada luasan 1 hektar adalah 0.25 jam, pupuk yang dibutuhkan pada luasan 1 hektar adalah 40 liter, kerja yang dibutuhkan pada luasan 1 hektar adalah 160 liter/jam.","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76953932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-19DOI: 10.28989/vortex.v4i1.1320
Nurfi Ahmadi, Fajar Nugroho, Dadang Ahmad A
The purpose of this study was to determine the relationship between the position of shielded metal arc welding (SMAW) with spiral motion V on the tensile strength and microstructure of low carbon steel. The research was conducted by welding V-coated low carbon steel with horizontal 2G, vertical 3G and overhead 4G. The test results show that the welding position does not have a significant effect on the tensile strength of low carbon steel welds, where the 3G vertical position provides a higher tensile strength value than the 2G horizontal position and 4G overhead. The microstructure of acicular ferrite (AF) in the vertical position looks dominant uniformly and tightly.
{"title":"PENGARUH POSISI SHIELDED METAL ARC WELDING (SMAW) GERAK SPIRAL KAMPUH V TERHADAP KEKUATAN TARIK DAN STRUKTUR MIKRO BAJA KARBON RENDAH","authors":"Nurfi Ahmadi, Fajar Nugroho, Dadang Ahmad A","doi":"10.28989/vortex.v4i1.1320","DOIUrl":"https://doi.org/10.28989/vortex.v4i1.1320","url":null,"abstract":"The purpose of this study was to determine the relationship between the position of shielded metal arc welding (SMAW) with spiral motion V on the tensile strength and microstructure of low carbon steel. The research was conducted by welding V-coated low carbon steel with horizontal 2G, vertical 3G and overhead 4G. The test results show that the welding position does not have a significant effect on the tensile strength of low carbon steel welds, where the 3G vertical position provides a higher tensile strength value than the 2G horizontal position and 4G overhead. The microstructure of acicular ferrite (AF) in the vertical position looks dominant uniformly and tightly.","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"18 774 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73683931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-19DOI: 10.28989/vortex.v4i1.1446
D. Hartini, Hendrix Noviyanto F, Muh. Nadlah Arifqi M, M.Ridlo E.Nasution
Buckling is a condition where an object is bent due to the application of a compression (compressive) load on the object. Buckling often occurs in thin-walled structures such as plates. This study aims to determine the buckling strength of isotropic and quasi-isotropic plates. The method used is the Finite Element Method (MEH). The isotropic material uses aluminum 2024-T3, while the quasi-isotropic material uses carbon/epoxy T300-5208 with a [0°/90°/45°/-45°]s laminate arrangement. Modeling and analysis using MSC Patran and Nastran software. The buckling analysis results show the critical buckling stress value on the isotropic plate is and on the quasi-isotropic plate is and is still within safe limits when viewed from the Buckling Load Factor (BLF) with a value >1.
{"title":"BUCKLING ANALYSIS OF ISOTROPIC PLATES (AL 2024-T3) AND QUASI-ISOTROPIC PLATES (CARBON/EPOXY T300/5208)","authors":"D. Hartini, Hendrix Noviyanto F, Muh. Nadlah Arifqi M, M.Ridlo E.Nasution","doi":"10.28989/vortex.v4i1.1446","DOIUrl":"https://doi.org/10.28989/vortex.v4i1.1446","url":null,"abstract":"Buckling is a condition where an object is bent due to the application of a compression (compressive) load on the object. Buckling often occurs in thin-walled structures such as plates. This study aims to determine the buckling strength of isotropic and quasi-isotropic plates. The method used is the Finite Element Method (MEH). The isotropic material uses aluminum 2024-T3, while the quasi-isotropic material uses carbon/epoxy T300-5208 with a [0°/90°/45°/-45°]s laminate arrangement. Modeling and analysis using MSC Patran and Nastran software. The buckling analysis results show the critical buckling stress value on the isotropic plate is and on the quasi-isotropic plate is and is still within safe limits when viewed from the Buckling Load Factor (BLF) with a value >1.","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90955041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-19DOI: 10.28989/vortex.v4i1.1425
Fajar Nugroho, Nurfi Ahmadi
Komposit sandwich adalah jenis komposit yang mempunyai kekuatan tinggi apabila digunakan sebagai struktur primer maupun sekunder. Komposit juga memiliki kelebihan dari sifat mekaniknya, tahan korosi, massa jenis yang kecil dan proses pembuatannya yang sederhana. Penelitian ini bertujuan untuk menyelidiki pengaruh variasi fraksi volume lapisan kulit serat aren dengan inti limbah gergaji kayu sengon laut terhadap kekuatan bending komposit sandwich bermatriks polyester. Bahan penelitian ini adalah serat aren, unsaturated polyester resin 157 BQTN-EX, serbuk limbah gergaji kayu sengon laut dan urea formaldehide. Spesimen ini dibuat dengan metode cetak tekan dengan tebal skin (2 mm) dan tebal core (10 mm). Pengujian bending komposit sandwich ini mengacu pada standar ASTM D-790-03. Metode yang digunakan dalam proses pembuatan komposit ini adalah metode hand lay up.Hasil penelitian menunjukkan nilai kekuatan bending mengalami kenaikan dari variasi fraksi volume 20% : 80% ke variasi fraksi volume 40% : 60%, dengan nilai tegangan lentur maksimum tertinggi 54,87 N/mm2 pada variasi fraksi volume 40% : 60%. Berdasarkan hal ini dapat diketahui bahwa seiring penambahan serat maka turut mempengaruhi nilai tegangan yang dihasilkan. Hasil pengujian morfologi pada variasi 30% : 70% ditemukan adanya void atau pori-pori di sekitar permukaan spesimen.
{"title":"PENGARUH KOMPOSISI SKIN TERHADAP KEKUATAN BENDING PADA KOMPOSIT SANDWICH SERAT AREN-POLYESTER DENGAN SERBUK KAYU SENGON-POLYESTER","authors":"Fajar Nugroho, Nurfi Ahmadi","doi":"10.28989/vortex.v4i1.1425","DOIUrl":"https://doi.org/10.28989/vortex.v4i1.1425","url":null,"abstract":"Komposit sandwich adalah jenis komposit yang mempunyai kekuatan tinggi apabila digunakan sebagai struktur primer maupun sekunder. Komposit juga memiliki kelebihan dari sifat mekaniknya, tahan korosi, massa jenis yang kecil dan proses pembuatannya yang sederhana. Penelitian ini bertujuan untuk menyelidiki pengaruh variasi fraksi volume lapisan kulit serat aren dengan inti limbah gergaji kayu sengon laut terhadap kekuatan bending komposit sandwich bermatriks polyester. Bahan penelitian ini adalah serat aren, unsaturated polyester resin 157 BQTN-EX, serbuk limbah gergaji kayu sengon laut dan urea formaldehide. Spesimen ini dibuat dengan metode cetak tekan dengan tebal skin (2 mm) dan tebal core (10 mm). Pengujian bending komposit sandwich ini mengacu pada standar ASTM D-790-03. Metode yang digunakan dalam proses pembuatan komposit ini adalah metode hand lay up.Hasil penelitian menunjukkan nilai kekuatan bending mengalami kenaikan dari variasi fraksi volume 20% : 80% ke variasi fraksi volume 40% : 60%, dengan nilai tegangan lentur maksimum tertinggi 54,87 N/mm2 pada variasi fraksi volume 40% : 60%. Berdasarkan hal ini dapat diketahui bahwa seiring penambahan serat maka turut mempengaruhi nilai tegangan yang dihasilkan. Hasil pengujian morfologi pada variasi 30% : 70% ditemukan adanya void atau pori-pori di sekitar permukaan spesimen.","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"91 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80529080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-19DOI: 10.28989/vortex.v4i1.1467
Via Febri Wulandari, A. Riyadi, Tri Hastono
Jamur tiram merupakan salah satu jamur yang enak dimakan dan mempunyai kandungan gizi yang cukup tinggi. Tidak mengherankan bila jenis jamur ini sekarang banyak dibudidayakan. Adapun jenis jamur tiram yang banyak dibudidayakan antara lain jamur tiram putih, jamur tiram abu-abu, jamur tiram cokelat, dan jamur tiram merah. Dalam bisnis budidaya jamur tiram ternyata tidak lepas dari resiko kerugian yang muncul jika petani kurang pengetahuan mengenai budidaya jamur tiram. Potensi kerugian salah satunya karena hama dan penyakit jamur tiram. Diperlukan kehadiran pakar untuk mengatasi hal tersebut. Penelitian ini berusaha memberikan solusi untuk permasalahan tersebut. Metode yang digunakan pada penelitian adalah metode centainty factor dengan penelusuran forward chaining. Hasil penelitian menunjukkan sistem yang diusulkan sudah sesuai harapan dengan tingkat akurasi sistem sebesar 86%.
{"title":"SISTEM PAKAR DIAGNOSA HAMA DAN PENYAKIT TANAMAN JAMUR TIRAM PUTIH MENGGUNAKAN METODE CERTAINTY FACTOR DENGAN PENELUSURAN FORWARD CHAINING","authors":"Via Febri Wulandari, A. Riyadi, Tri Hastono","doi":"10.28989/vortex.v4i1.1467","DOIUrl":"https://doi.org/10.28989/vortex.v4i1.1467","url":null,"abstract":"Jamur tiram merupakan salah satu jamur yang enak dimakan dan mempunyai kandungan gizi yang cukup tinggi. Tidak mengherankan bila jenis jamur ini sekarang banyak dibudidayakan. Adapun jenis jamur tiram yang banyak dibudidayakan antara lain jamur tiram putih, jamur tiram abu-abu, jamur tiram cokelat, dan jamur tiram merah. Dalam bisnis budidaya jamur tiram ternyata tidak lepas dari resiko kerugian yang muncul jika petani kurang pengetahuan mengenai budidaya jamur tiram. Potensi kerugian salah satunya karena hama dan penyakit jamur tiram. Diperlukan kehadiran pakar untuk mengatasi hal tersebut. Penelitian ini berusaha memberikan solusi untuk permasalahan tersebut. Metode yang digunakan pada penelitian adalah metode centainty factor dengan penelusuran forward chaining. Hasil penelitian menunjukkan sistem yang diusulkan sudah sesuai harapan dengan tingkat akurasi sistem sebesar 86%.","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85059285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ground effect phenomenon is found when the lift-device such as wing, is placed near the ground. This phenomenon influences the aerodynamics characteristic whereby its appearance is important to be investigated. This work aims to study the influence of ground effect towards aerodynamics characteristion on the NACA4415 airfoil by varying the airfoil’s angle of attack (AoA) as well as the height of ground proximity. Numerical approach conducted on Fluent was carried out while steady assumption, moving wall boundary, and Spalart-Allmaras turbulence model were utilized. The outcomes were aerodynamics characteristic represented by lift and drag coefficients. The results showed that maximum was 1.736 on AoA 15o while maximum was 0.0108 on AoA 18o respectively. It also found that ground proximity also was affecting the values of and . On the height of 0.05 chord, maximum characteristic of lift was obtained while maximum drag was on the 0.8 chord at AoA 18o. It caused by airflow underneath the airfoil was faster due to the ground effect revaling the nozzle-effect, therefore the pressure was higher as according to the Bernoulli’s formulation. On the other hand, drag was related to the vortex generation in which AoA more influental than that of height. This work is hopefully beneficial as initial reference on the Wing-in-Ground (WIG) craft design, in particular on the airfoil selection.
{"title":"SIMULASI NUMERIK KARAKTERISTIK AERODINAMIKA PADA AIRFOIL NACA 4415 DENGAN MEMPERTIMBANGKAN GROUND EFFECT","authors":"Rr Saskia Rianasari Hayuningtyas, Farhan Fathori Nugroho, Bahrul Jalaali","doi":"10.28989/vortex.v4i1.1339","DOIUrl":"https://doi.org/10.28989/vortex.v4i1.1339","url":null,"abstract":"Ground effect phenomenon is found when the lift-device such as wing, is placed near the ground. This phenomenon influences the aerodynamics characteristic whereby its appearance is important to be investigated. This work aims to study the influence of ground effect towards aerodynamics characteristion on the NACA4415 airfoil by varying the airfoil’s angle of attack (AoA) as well as the height of ground proximity. Numerical approach conducted on Fluent was carried out while steady assumption, moving wall boundary, and Spalart-Allmaras turbulence model were utilized. The outcomes were aerodynamics characteristic represented by lift and drag coefficients. The results showed that maximum was 1.736 on AoA 15o while maximum was 0.0108 on AoA 18o respectively. It also found that ground proximity also was affecting the values of and . On the height of 0.05 chord, maximum characteristic of lift was obtained while maximum drag was on the 0.8 chord at AoA 18o. It caused by airflow underneath the airfoil was faster due to the ground effect revaling the nozzle-effect, therefore the pressure was higher as according to the Bernoulli’s formulation. On the other hand, drag was related to the vortex generation in which AoA more influental than that of height. This work is hopefully beneficial as initial reference on the Wing-in-Ground (WIG) craft design, in particular on the airfoil selection. ","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90187343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-19DOI: 10.28989/vortex.v4i1.1422
E. Poerwanto, Nikolaus Meo Dhaka, Riani Nurdin
Bandara Udara So’a Bajawa merupakan salah satu bandara udara domestik di pulau Flores kabupaten Ngada, NTT. Terdapat 3 maskapai komersil yang beroperasi di bandara So’a dan tergolong dalam kategori low cost carrier (LCC) yaitu PT. Lion Air, PT. Citilink, dan PT. TransNusa Aviation Mandiri. Bandara Udara So’a bajawa merupakan salah satu bandara udara domestik di pulau Flores kabupaten Ngada, NTT. Terdapat 3 maskapai komersil yang beroperasi di bandara So’a dan tergolong dalam kategori low cost carrier (LCC) yaitu PT. Lion Air, PT. Citilink, dan PT. TransNusa Aviation Mandiri. Kualitas layanan yang optimal dan presepsi harga diharapkan mampu memenuhi harapan penumpang yang menggunakan 3 maskapai yang beroperasi di bandara so’a, untuk itu guna mengetahui kepuasan penumpang penelitian kuantitatif, Data yang digunakan dalam penelitian ini merupakan data primer yang diperoleh melalui pembagian kuesioner kepada penumpang pengguna ketiga maskapai yang beroperasi di bandara So’a. Teknik analisis data yang diterapkan dalam penelitian ini adalah analisis regresi linier berganda menggunakan SPSS versi 16.0 sebagai alat bantu pengolahan data. Hasil penelitian menunjukkan bahwa Lion Air lebih memuaskan dibandingkan dengan Cititlink dan TransNusa.
位于北加瓦的弗洛雷斯群岛，NTT区是国内的一个机场目前在索亚机场有三家商业航空公司，属于有限的低成本船运公司(LCC)，其中包括PT Lion Air, PT. Citilink和PT. TransNusa航空公司。位于北加瓦的弗洛雷斯群岛，NTT区是国内的一个机场目前在索亚机场有三家商业航空公司，属于有限的低成本船运公司(LCC)，其中包括PT Lion Air, PT. Citilink和PT. TransNusa航空公司。最佳的服务质量和价格差异预计可以满足乘客的希望用三个所以'a机场运营的航空公司,为了那知道乘客满意度定量研究,研究中使用的是数据主要通过向乘客分发调查问卷获得的第三个用户所以'a机场运营的航空公司。本研究采用的数据分析技术是使用SPSS版本16.0作为数据处理辅助工具的多元线性回归分析。研究结果表明，狮子水比Cititlink和TransNusa更令人满意。
{"title":"ANALISIS PERBANDINGAN KEPUASAN PENUMPANG PADA MASKAPAI PENERBANGAN YANG BEROPERASI DI BANDARA SO’A","authors":"E. Poerwanto, Nikolaus Meo Dhaka, Riani Nurdin","doi":"10.28989/vortex.v4i1.1422","DOIUrl":"https://doi.org/10.28989/vortex.v4i1.1422","url":null,"abstract":"Bandara Udara So’a Bajawa merupakan salah satu bandara udara domestik di pulau Flores kabupaten Ngada, NTT. Terdapat 3 maskapai komersil yang beroperasi di bandara So’a dan tergolong dalam kategori low cost carrier (LCC) yaitu PT. Lion Air, PT. Citilink, dan PT. TransNusa Aviation Mandiri. Bandara Udara So’a bajawa merupakan salah satu bandara udara domestik di pulau Flores kabupaten Ngada, NTT. Terdapat 3 maskapai komersil yang beroperasi di bandara So’a dan tergolong dalam kategori low cost carrier (LCC) yaitu PT. Lion Air, PT. Citilink, dan PT. TransNusa Aviation Mandiri. Kualitas layanan yang optimal dan presepsi harga diharapkan mampu memenuhi harapan penumpang yang menggunakan 3 maskapai yang beroperasi di bandara so’a, untuk itu guna mengetahui kepuasan penumpang penelitian kuantitatif, Data yang digunakan dalam penelitian ini merupakan data primer yang diperoleh melalui pembagian kuesioner kepada penumpang pengguna ketiga maskapai yang beroperasi di bandara So’a. Teknik analisis data yang diterapkan dalam penelitian ini adalah analisis regresi linier berganda menggunakan SPSS versi 16.0 sebagai alat bantu pengolahan data. Hasil penelitian menunjukkan bahwa Lion Air lebih memuaskan dibandingkan dengan Cititlink dan TransNusa.","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91322576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.28989/vortex.v4i1.1457
Muhammad Nur Hilmy, G. Gunawan, Bangga Dirgantara Adiputra
PKP-PK is a unit that must be owned by every airport. This unit is tasked with carrying out aviation accident rescue and fire fighting in the area or around the airport. Seeing the importance of this unit, it is necessary to conduct research on emergency service facilities, find out the reaction time, analyze PKP-PK categories, analyze fire risk management, and the development of this unit. This research was conducted at the PKP-PK unit located at Bayuwangi International Airport. The research method used is descriptive quantitative where data is obtained from the results of questionnaires given to PKP-PK personnel. These data are then compared with Regulation Nomor KP 14 Tahun 2015 which is used to assess the readiness of the PKP-PK. Whereas for risk mapping using the FAA Risk Matrix table. The results show that there is still a shortage of operational facilities while the reaction time and PKP-PK categories are in accordance with regulations. Risk mapping obtains 4 events that have a potential hazard.
{"title":"ANALISIS KESIAPAN PKP-PK BANDAR UDARA INTERNASIONAL BANYUWANGI DALAM MENDUKUNG PENANGGULANGAN KEADAAN DARURAT","authors":"Muhammad Nur Hilmy, G. Gunawan, Bangga Dirgantara Adiputra","doi":"10.28989/vortex.v4i1.1457","DOIUrl":"https://doi.org/10.28989/vortex.v4i1.1457","url":null,"abstract":"PKP-PK is a unit that must be owned by every airport. This unit is tasked with carrying out aviation accident rescue and fire fighting in the area or around the airport. Seeing the importance of this unit, it is necessary to conduct research on emergency service facilities, find out the reaction time, analyze PKP-PK categories, analyze fire risk management, and the development of this unit. This research was conducted at the PKP-PK unit located at Bayuwangi International Airport. The research method used is descriptive quantitative where data is obtained from the results of questionnaires given to PKP-PK personnel. These data are then compared with Regulation Nomor KP 14 Tahun 2015 which is used to assess the readiness of the PKP-PK. Whereas for risk mapping using the FAA Risk Matrix table. The results show that there is still a shortage of operational facilities while the reaction time and PKP-PK categories are in accordance with regulations. Risk mapping obtains 4 events that have a potential hazard.","PeriodicalId":40576,"journal":{"name":"Revista Vortex-Vortex Music Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90876762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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