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All Journal INOVTEK POLBENG Jurnal Ekonomi
Septi Ayu Angraini
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Computer Science & IT Economics, Econometrics & Finance

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ANALISA PERBANDINGAN KOMPUTASI HIDROSTATIK KAPAL HIGH SPEED CRAFT MENGUNAKAN METODE PANEL MESH GENERATION Romadhoni romadhoni; Septi Ayu Angraini; aprizawati aprizawati
INOVTEK POLBENG Vol 14, No 1 (2024): INOVTEK VOL 14 NO 1
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v14i1.4185

Abstract

Hidrostatik merupakan salah satu komponen penting yang menjadi dasar awal dalam proses perencanaan kapal. Dengan dimulai memberi input ukuran utama kapal yaitu berupa L lebar kapal,  B Iebar badan kapal, H tinggi kapal selanjutnya kemudian diolah menjadi persamaan parametris dan diproses dengan surface fitting sehingga menghasilkan vertek dalam ruang 3-D, dari data tersebut kemudian diolah melalui sejumlah rumusan, baik itu berupa luas, volume dan momen inersia digambarkan dalam bentuk kurva hidrostatik untuk mengetahui kareteristik-kateristik badan kapal berdasarkankan sart air yang di butuhkan. Model pada penelitian ini adalah kapal High Speed Craft  dengan Panjang 38 m, lebar 7.6 m, tinggi 3.65 m dan sarat 1.89 m. Pada penelitian akan membandingkan pengambaran 2 model kapal mengunakan panel mesh geration pada software Hydrostar dan Maxsuft dengan metode panel surface. Hasil kalkulasi yang didapat bahwa nilai hidrostatik propertis pada masing-masing metode metode mesh geration dan panel surface adalah Displasmen 24,54 ton, 240,5 Ton WPA 235.68 M2 dan 234.64 M2, WSA 285.8 m2 dan 284.055 KB 1.308 dan 1.302 LCF 15.825 dan 15.797 serta BM 4.282 dan 4.265  dengan deviasi selisih 0,004 atau kurang dari 2 %  sehingga hasil dari validasi pengambaran model kapal metode mesh generation telah berhasil sehingga dapat dilanjutkan pada proses selanjutnya yakni analisa seakeeping kapal.
Application Of The Goal Programming Method In Increasing Plate Production For Steel Ships Nurhasanah, Nurhasanah; Septi Ayu Angraini; Romadhoni, Romadhoni
Jurnal Ekonomi Vol. 13 No. 02 (2024): Jurnal Ekonomi, Edition April - June 2024
Publisher : SEAN Institute

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Abstract

PT. Gunawan Dianjaya Steel (GDS) is one company that produces steel plates in Indonesia. PT GDS was hot sheet steel factory (BLP ) producing steel and steel in all sorts of different types and design of consumer conformed to order.A kind of steel produced by the blp hot sheet steel it is divided into the type form the coil and plate masing-masing form the quality of being domestic composed of different kinds, imports and CRM. Production planning basically there are three elements need to be considered, the consumers, products, and the manufacturing process.All three of these elements is a very complex to be faced by the company.This study attempts to determine the optimal combination that can reach the whole purpose of these elements of the company. Methods used in this research is goal programming, a method of optimize developed to solve the problems with the aim of more than one.The goal programming has the ability to achieve a number of goals or target. From the mathematical linear fomulasi until they reached the goal total production x1 + x2 + x3 = 10 + 75 + 65 = 140 plate targetless 150 plate.Goal of a production = 10 plate that means 40 plate under production target of 50 plate goal products b = 75 plate that means in accordance with company production target.Goal production products c = 65 plate that means less than 15 a plat of 80 plate company production target.The product is the total second Rp.100.000 x1 + Rp. 175.000 x2 + Rp. 200.000 x3 = Rp.100.000 (10) + Rp.175.000 (75) + Rp.200.000 (65) = Rp. 1.000.000,- + Rp.13.125.000,- + Rp.13.000.000,- = Rp. 27.125.000,-
Co-Authors aprizawati aprizawati Nurhasanah Nurhasanah Romadhoni Romadhoni, Romadhoni