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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Manajemen Teknologi Majalah Ilmiah Pengkajian Industri Wave: Jurnal Ilmiah Teknologi Maritim Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil
Ma'ruf, Buana
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Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Industrial & Manufacturing Engineering Transportation

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ANALYSIS OF NON VALUE ADDED ACTIVITY ON SHIP PRODUCTION PROCESS APPROACH CONCEPT OF VALUE STREAM MAPPING CASE STUDY AT PT. DUMAS TANJUNG PERAK SHIPYARD SURABAYA Tebiary, An Apriyani; Suastika, I Ketut; Ma'ruf, Buana
Wave: Jurnal Ilmiah Teknologi Maritim Vol 11, No 1 (2017)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (237.584 KB) | DOI: 10.29122/jurnalwave.v11i1.2056

Abstract

Competition of shipyard industry market in this globalization era encourages companies to realize the importance of improving the effectiveness and efficiency so that, able to compete in terms of quality, cost and on time delivery. Production effectiveness is one effort that must be achieved by a shipbuilding industry to survive amid the competition in seizing market share. Production effectiveness is done with the aim of producing economically, continuously and on time to the customer, so that the company's survival can be guaranteed. This study aims to identify the activities that are classified as waste in the process of ship building at PT. Dumas Tanjung Perak Shipyard Surabaya so as to minimize production time in shipyard industry. The results showed the effectiveness of PT. DUMAS currently reaches 84.96%. In the process of improvement with the application of value stream mapping effectiveness value reached 92%. The conclusion of this research is a value stream mapping method can be applied measuring instrument and can describe the flow of production process in shipyard so that can explain in detail activity that give value added or non value added activity.
KAJIAN PENERAPAN ATURAN KLASIFIKASI PADA LAMINASI STRUKTUR KONSTRUKSI LAMBUNG KAPAL IKAN FIBERGLASS 3 GT Marzuki, Ismail; Zubaydi, Achmad; Ma'ruf, Buana
Wave: Jurnal Ilmiah Teknologi Maritim Vol 11, No 1 (2017)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (736.838 KB) | DOI: 10.29122/jurnalwave.v11i1.2055

Abstract

Material fiberglass masih menjadi alternatif dalam pembuatan kapal di Indonesia, hal ini terlihat dari banyaknya kapal ikan berbahan fiberglass pesanan KKP pada tahun 2016. Penelitian ini bertujuan untuk melakukan tinjaun sejauh mana penerapan aturan klasisfikasi pada proses produksi pembangunan kapal ikan 3 GT dengan melakukan pengujian kuat tarik dan kuat tekuk terhadap spesimen laminasi kapal ikan FRP 3 GT yang diambil dari dua galangan yang sedang membangun kapal ikan pesanan Kementrian Kelautan dan Perikanan (KKP) tahun 2016, dimana proses pembangunannya mengacu pada persyaratan pengujian dalam Biro Klasikasi Indonesia (BKI) tahun 2015, yang memakai International Standard (ISO) 527-4 (1997) untuk uji tarik, dan ISO 14125 (1998) untuk uji bending. Spesimen yang akan di uji masing-masing diambil dari bagian lunas (keel), alas (bottom) dan sisi (side). Secara keseluruhan hasil yang diperoleh dalam penelitian ini adalah mengevaluasi dari laminasi struktur konstruksi yang pada penerapanya tidak memenuhi dari aturan klasifiaksi dan juga memeberikan alterbatif susunan laminasi optimal untuk diterapkan dalam pembangunan kapal ikan 3 GT berbahan fiberglass. Penelitian ini juga nantinya dapat berkonstribusi dalam penyususnan standarisasi untuk kapal-kapal fiber berukuran kecil.
KAJIAN DISAIN KONSTRUKSI LAMINASI LAMBUNG PROTOTIPE KAPAL SEP-HULL 8 METER Ma'ruf, Buana
Wave: Jurnal Ilmiah Teknologi Maritim Vol 4, No 2 (2010)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (146.17 KB) | DOI: 10.29122/jurnalwave.v4i2.3530

Abstract

Prototipe kapal Surface Effect Planning Hull (SEP-Hull) 8 meter yang telah dibangun pada tahun 2009, merupakan kapal dengan sistem injeksi udara yang memungkinkan kapal melaju dengan kecepatan tinggi dan konsumsi bahan bakar yang minimal, sehingga cocok digunakan sebagai kapal patroli, kapal wisata pantai, dan sejenisnya. Kapal ini didisain berbahan fiberglass dan diharapkan kelak dapat dibangun skala komersil. Di sisi lain, hasil survei di beberapa galangan fiberglass dalam negeri menunjukkan, pembuatan kapal fiberglass umumnya belum mengacu pada persyaratan kelas, sehingga kekuatan konstruksi laminasinya sulit dijamin. Makalah ini mengkaji aspek disain konstruksi prototipe kapal SEP-Hull dan pengujian spesimen (uji tarik dan uji tekuk) laminasi lambung kapal tersebut sesuai rules BKI 2006. Hasil yang diperoleh menunjukkan bahwa, nilai kuat tekuknya tidak memenuhi nilai minimum sebagaimana disyaratkan rules BKI. Berdasarkan hasil diskusi dengan pihak BKI dan praktisi galangan, diperoleh sebuah usulan penyempurnaan disain konstruksi dan susunan laminasi fiberglass untuk pembangunan kapal SEP-Hull skala komersil di masa mendatang, yang mengacu pada rules BKI.Keywords: fiberglass ship, SEP-Hull vessel, lamination construction, specimen test.
PENGUKURAN KESIAPAN TEKNOLOGI UNTUK PEMBANGUNAN KAPAL KONTAINER 100 TEUS DENGAN SISTEM MODULAR DI PT PAL INDONESIA Virliantarto, Noor; Ma'ruf, Buana; Suastika, I Ketut
Wave: Jurnal Ilmiah Teknologi Maritim Vol 11, No 1 (2017)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.562 KB) | DOI: 10.29122/jurnalwave.v11i1.2054

Abstract

Industri galangan kapal Indonesia mempunyai potensi yang cukup besar jika ditinjau dari kebutuhan kapal dari dalam negeri, termasuk banyaknya jumlah kebutuhan kapal kontainer 100 TEUs dalam waktu dekat. Untuk memenuhi kebutuhan sekaligus meningkatkan daya saing industri galangan kapal Indonesia di mata dunia dibutuhkan pengembangan teknologi produksi kapal. Banyaknya kebutuhan kapal kontainer 100 TEUs memungkinkan untuk dibangun secara masal dengan sistem modular, dimana teknologi modular adalah implementasi dari teknologi PWBS yang telah diterapkan banyak galangan. PT. PAL Indonesia telah menerapkan teknologi modular, akan tetapi untuk pembangunan kapal PKR (Perusak Kawal Rudal). Oleh karena itu, pada makalah ini dilakukan pengukuran kesiapan teknologi PT. PAL Indonesia dengan metode pengukuran model teknometrik untuk pembangunan kapal kontainer secara masal dengan sistem modular, di mana teknometrik membagi empat komponen teknologi yang terdiri dari technoware, humanware, inforwar, dan orgaware. Hasil dari pengukuran tersebut memberikan rekomendasi pengembangan galangan kapal, antara lain pemanfaatan lahan sebagai buffer area, melakukan transfer of technology pada SDM, mengintegrasikan sistem informasi, dan membentuk badan penelitian dan pengembangan.
IMPLEMENTATION FORMS OF INTEGRATION STRATEGY FOR DEVELOPMENT OF SHIPYARD INDUSTRY IN SURABAYA AND SURROUNDING Bawias, Ishak; Zubaydi, Achmad; Ma'ruf, Buana
Wave: Jurnal Ilmiah Teknologi Maritim Vol 11, No 1 (2017)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (109.033 KB) | DOI: 10.29122/jurnalwave.v11i1.2258

Abstract

One of the successes of the Philippines and Vietnam in developing the shipbuilding industry is by applying integration strategies within the  shipbuilding industry, so that synergy between docks and supporters is optimized and create sustainable competitiveness. Therefore, this research is aimed at developing shipyard industry in Surabaya and its surroundings, through analysis of business competitiveness with the implementation of integration strategies. The form of strategy implementation from several previous studies was continued through questionnaires (based on Likert Scale) to 31 respondents of top management of a number of shipyard and supporting industries, as well as related institutions. The result, then analyzed by using Quantitative Strategic Planning Matrix (QSPM), so that obtained some form of synergy and potential synergy pattern done in shipbuilding industry development.
PERENCANAAN PENJADWALAN REPARASI KAPAL FERRY DENGAN MENGGUNAKAN METODE FLASH Firstdhitama, Wisnu; Suastika, I Ketut; Ma'ruf, Buana
Wave: Jurnal Ilmiah Teknologi Maritim Vol 12, No 1 (2018)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1208.214 KB) | DOI: 10.29122/jurnalwave.v12i1.2869

Abstract

ABSTRAK Sebagai negara kepulauan di Indonesia kapal ferry mempunyai peran sangat vital untuk melayani angkutan penumpang dan barang dengan jarak pendek. Pada operasinya armada kapal ferry ini memiliki frekuensi waktu kedatangan dan keberangkatan yang ketat, sehingga dalam setiap waktu dockingnya harus singkat dan terjadwal dengan baik. Namun pada kasusnya diperiode special docking ini masih relatif lama yakni sekitar 37 hari pada penyelesaian dockingrepairnya.Padamakalahinimengambilstudi kasus reparasikapalpenumpangjenisferry di salahsatugalangankapal. Permasalahan yang biasaterjadidilapanganadalahpenyelesaian pekerjaan reparasi kritis atau critical path, dimana jika terjadi keterlambatan dalam penyelesaian, maka pekerjaan lainnya juga akan terjadi keterlambatan dalam penyelesaiannya.Dengan demikian dari permasalahan tersebut perlu dilakukan penjadwalan ulang melalui metode FLASHFuzzy Logic Aplication for Schedulling, dimana metode ini lebih sistematis, sederhana dan akurat dalam merencanakan penjadwalan pekerjaan reparasi. Penjadwalan ulang dengan metode FLASH ini dilakukan melalui analisis data historical repair yang sudah ada untuk menentukan waktu yang efisien dalam realisasi pekerjaan. Selanjutnya dengan bantuan kuisioner didapatkan nilai tingkat kepercayaan pada beberapa faktor yang mempengaruhi keterlambatan dalam penjadwalan dengan kesesuaian class matter.Dengan data-data tersebut, selanjutnya dilakukan olah data dengan bantuan sofware microsoftexcel 2010, QM-windows versi-4 dan matlab v-20. Dari hasil komputasi didapatkan efisiensi waktu dari pekerjaan reparasi dengan pengaturan penjadwalan penyelesaian 25 hari dengan tingkat kepercayaan sebesar 90 persen dan tingkat kesesuaian dari faktor yang mempengaruhi dalam penjadwalan sebesar 39 persen.Kata kunci :MetodeFLASH, Efisiensiwaktudocking, Penjadwalanpekerjaan.
Studi Teknis Dan Ekonomis Dimensi Konstruksi Kapal Kayu Berdasarkan BKI Aditya, Bagus Kusuma; Supomo, Heri; Ma'ruf, Buana
Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil Vol 3 No 2: September 2020
Publisher : Universitas Dr. Soetomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25139/jprs.v3i2.2909

Abstract

Wooden ships are one of the non-steel ships that are widely available in Indonesian waters, which are built using conventional methods. In this study, a survey was conducted to determine the dimensions of the construction elements on the ship's kasko from the keel to the main deck, the price of wood materials and the construction process using interview and observation methods. Existing ship data is analyzed according to the 1996 BKI Rule on wooden ships to determine the level of comparison for each element of ship construction. Existing ship construction data based on regulatory analysis is modeled to get the optimum reductions of construction dimensions. Based on the results of the technical and economic analysis of the three vessels, it is known that the two existing ships have heavier construction than the calculation according to the BKI Rules. This is influenced by differences in ivory spacing, deck beam distance, outer shell thickness and deck thickness. The size of the construction dimensions is proportional to its economic value. Therefore, to determine the optimum level of reduction in construction dimensions, structural modeling is used. In the modeling that is done, it is found that the value of the reduction in construction dimensions is 10%, 20% and 30%. This reduction was carried out because the magnitude of the stress of the three ships according to the BKI Rules was still far below the limit allowed according to BKI 12,75 N/mm2. According to the results, the recommendation for the reduction in construction dimensions is up to 20%. The  30% reductions were not recommended because the stress value is over than the stress limit. The allowable stress is 12,75 N/mm2. Based on the data, it can be conclude that the economic value also can be reduced up to 20%.
Studi Teknis Dan Ekonomis Dimensi Konstruksi Kapal Kayu Berdasarkan BKI Aditya, Bagus Kusuma; Supomo, Heri; Ma'ruf, Buana
Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil Vol. 3 No. 2: September 2020
Publisher : Universitas Dr. Soetomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25139/jprs.v3i2.2909

Abstract

Wooden ships are one of the non-steel ships that are widely available in Indonesian waters, which are built using conventional methods. In this study, a survey was conducted to determine the dimensions of the construction elements on the ship's kasko from the keel to the main deck, the price of wood materials and the construction process using interview and observation methods. Existing ship data is analyzed according to the 1996 BKI Rule on wooden ships to determine the level of comparison for each element of ship construction. Existing ship construction data based on regulatory analysis is modeled to get the optimum reductions of construction dimensions. Based on the results of the technical and economic analysis of the three vessels, it is known that the two existing ships have heavier construction than the calculation according to the BKI Rules. This is influenced by differences in ivory spacing, deck beam distance, outer shell thickness and deck thickness. The size of the construction dimensions is proportional to its economic value. Therefore, to determine the optimum level of reduction in construction dimensions, structural modeling is used. In the modeling that is done, it is found that the value of the reduction in construction dimensions is 10%, 20% and 30%. This reduction was carried out because the magnitude of the stress of the three ships according to the BKI Rules was still far below the limit allowed according to BKI 12,75 N/mm2. According to the results, the recommendation for the reduction in construction dimensions is up to 20%. The  30% reductions were not recommended because the stress value is over than the stress limit. The allowable stress is 12,75 N/mm2. Based on the data, it can be conclude that the economic value also can be reduced up to 20%.
Analysis of the Effect of Shielding Gas Composition and FCAW Parameters on Shipbuilding Steel Plate for Ship Hull Production Al Amin, Mochammad Karim; Soelistijono, Rafi Febian; Nisazarifa, Adristi; Ma'ruf, Buana; Nugroho, Priyambodo Nur Ardi; Mustaghfirin, Muhammad Anis; Putera, Erwien Yuliansyah; Irawan, Bambang; Anggara, Dika; Widodo, Eriek Wahyu Restu; Bachtiar, Bachtiar; Ibad, Ilham Khoirul; Pratama Putra, Mochammad Yudha Aditya
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 22, No 1 (2025): February
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v22i1.67434

Abstract

Shielding gas is an important thing to protect the weld metal from impurities during the welding process. Ar, CO2, and mixing gas of Ar-CO2 are often used as a shielding gas in the marine industry. Differences in shielding gases and the current of welding could affect the microstructure and hardness of welding. This research analyzed the microstructure and hardness from the FCAW process of Shipbuilding Steel Plate using mixing gas and shielding gas of 100% CO2 with variations of current 180 and 195 A. The filler metal which has been used was A 5.20 E-71T1. The microstructure for the weld metal with 100% CO2 shielding gas was pearlite, widmanstatten ferrite, grain ferrite, and polygonal ferrite; otherwise for mixing shielding gas of 80% Ar + 20% CO2 and 75%Ar + 25% CO2 was found, the structure of pearlite, grain ferrite, and acicular ferrite. The effect of variations in the shielding gas composition and welding current that produced the highest hardness value was achieved with a shielding gas composition of 80% Ar + 20% CO2 and a current of 195 A, resulting in a hardness of 159.2 HV in the weld area.
Co-Authors A.A. Ketut Agung Cahyawan W Achmad Zubaydi Aditya, Bagus Kusuma Bachtiar Bachtiar Bawias, Ishak Bisri, Ahmad Dika Anggara Eriek Wahyu Restu Widodo Firstdhitama, Wisnu Heri Supomo I. K. Suastika Ilham Khoirul Ibad Mochammad Karim Al Amin Mustaghfirin, Muhammad Anis Nisazarifa, Adristi Patdono Suwignjo Pratama Putra, Mochammad Yudha Aditya Priyambodo Nur Ardi Nugroho Putera, Erwien Yuliansyah RR. Ella Evrita Hestiandari Sjarief Widjaja Soelistijono, Rafi Febian Tebiary, An Apriyani Virliantarto, Noor