{"title":"Sistem Propulsi Roket Padat Untuk Rudal Anti Tank","authors":"Erna Shevilia Agustian","doi":"10.35894/jtk.v6i2.36","DOIUrl":"https://doi.org/10.35894/jtk.v6i2.36","url":null,"abstract":"Abstrak-Indonesia membutuhkan ketersediaan alat peralatan pertahanan dan keamanan (Alpalhankam). Namun hal ini belum didukung oleh kemampuan industri pertahanan secara optimal, sehingga menyebabkan ketergantungan terhadap produk Alpalhankam dari luar negeri. Dengan demikian perlu adanya upaya untuk dapat menguasai teknologi, sehingga kebutuhan terhadap Alpalhankam dapat terpenuhi oleh industri dalam negeri. Indonesia menggunakan Taktik gerilya yang dalam Implementasinya menggunakan senjata-senjata yang dapat menghancurkan Alat utama Sistem Persenjataan (Alutsista) musuh yang masuk ke Indonesia seperti Tank Musuh. Maka berkaitan dengan hal tersebut diperlukan suatu senjata ringan dan senjata Penghancur Tank. Anti Tank Guided Missile (ATGM) memiliki kemampuan untuk menghancurkan Tank tempur utama yang kuat dari jarak yang sangat jauh. Secara umum kinerja rudal sebagian besar bergantung pada sistem propulsi nya. Sistem propulsi roket padat pada rudal digunakan terutama pada saat memerlukan percepatan yang besar, misalnya meningkatkan kecepatan tinggi dalam waktu singkat sehingga cocok diterapkan pada rudal Anti Tank. Selain itu motor roket padat juga memiliki tingkat keselamatan, keandalan, kesederhanaan desain, serta masa penyimpanan yang baik, sehingga sering digunakan dalam aplikasi militer. \u0000Kata kunci: Alpalhankam, Alutsista, Rudal, Propulsi, Roket Padat,","PeriodicalId":354117,"journal":{"name":"Jurnal Teknologi Kedirgantaraan","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115080948","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}
Fernando Fransiskus Rotty, Freddy Franciscus, E. Chandra
{"title":"Analisis Penentuan Komposisi Optimum Kargo Dan Pax Pesawat Boeing 787 - 8 Dan Airbus 330 – 900 Pada Rute Jakarta – Dubai Menggunakan Optimasi Linear Programming","authors":"Fernando Fransiskus Rotty, Freddy Franciscus, E. Chandra","doi":"10.35894/jtk.v6i2.37","DOIUrl":"https://doi.org/10.35894/jtk.v6i2.37","url":null,"abstract":"Abstract - The need for airplanes is increasing every day, this is due to the increasing number of passengers and cargo shipments from one area to another. Therefore, airlines need to provide optimal, safe, and efficient cargo and passenger transportation services so that the delivery of goods and passengers can run according to correct procedures. Opportunities in the business of transporting passengers and shipping cargo must be utilized properly by each airline by purchasing planes so that the shipping process from one area to another can quickly arrive at its destination. The purpose of this paper is to find the optimum value of the two aircraft between the Boeing 787-8 and the Airbus 330-900 in terms of the effect on the range, operational costs and to find out which aircraft is more profitable for operating costs on the Jakarta - Dubai route, using linear optimization. programming. Based on the results of the analysis that the optimum point for the calculation of linear programming optimization, the Boeing 787-8 aircraft obtained results (Max payload 41,075 kg, Fuel 6,657 kg, Max Fuel 101,323 kg) where these three results become a limitation for airlines to know the maximum usage of payload and fuel compared Airbus 330-900 aircraft obtained results at the point (Max payload 45,000 kg, Fuel 4,728 kg, Max Fuel 111,272 kg) so that the optimization results are obtained, for Boeing 787-8 aircraft with a max payload of 41,075 kg, max pax 359, max cargo 15,945 kg , compared to Airbus 330-900 with a max payload of 45,000 kg, max pax 460, max cargo 12,800 kg, so it can be concluded that the results of linear programming optimization and the calculation of the operational costs of the Boeing 787-8 aircraft are more optimal with a figure of Rp. 1,541,334,803.96 but in terms of revenue the Airbus 330-900 is bigger than the Boeing 787-8. \u0000 \u0000 ","PeriodicalId":354117,"journal":{"name":"Jurnal Teknologi Kedirgantaraan","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131514460","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}
{"title":"Modal Analysis Of Blended Wing-Body UAV","authors":"N. Ruseno","doi":"10.35894/jtk.v6i2.39","DOIUrl":"https://doi.org/10.35894/jtk.v6i2.39","url":null,"abstract":"The modal analysis deals with the dynamic behavior of mechanical structures under the dynamic vibration. This study aims to analyze the vibration characteristic of the blended wing-body Unmanned Aerial Vehicle (UAV) using modal analysis. The numerical method is used to calculate the eigen frequencies of the system. The COMSOL Multiphysics is selected as the Finite Element Method (FEM) software to simulate the study. The resulted eigen frequencies are 278.05 Hz, 721.28 Hz, 816.39 Hz, 1601.7 Hz, 1699.5 Hz, and 1855.5 Hz. The study also evaluates the displacement of the leading edge of the wing in all axes to understand the modal shapes. The modal shapes found are updrift, swift back, flapping vertical, flapping horizontal, flapping opposite horizontal and flapping more wave in horizontal movement. The comparison of resulted eigen frequencies with a conventional aircraft wing is conducted to understand the difference in its vibration characteristics.","PeriodicalId":354117,"journal":{"name":"Jurnal Teknologi Kedirgantaraan","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116480648","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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