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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Teknika: Jurnal Sains dan Teknologi Jurnal IPTEK Journal of Economic, Bussines and Accounting (COSTING) Science and Physics Education Journal (SPEJ) INOVTEK POLBENG INTECOMS: Journal of Information Technology and Computer Science Alignment: Journal of Administration and Educational Management Adimas : Jurnal Pengabdian Kepada Masyarakat DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Journal of Management and Bussines (JOMB) DEDIKASI PKM
Romadhoni
Politeknik Negeri Bengkalis
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Journal : KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan

 1 
ANALISA PENGARUH BENTUK LAMBUNG AXE BOW PADA KAPAL HIGH SPEED CRAFT TERHADAP HAMBATAN TOTAL Oni, Romadhoni; Utama, I.K.A.P
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 12, No 2 (2015): Juni
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (859.25 KB) | DOI: 10.14710/kpl.v12i2.8351

Abstract

Hambatan merupakan salah satu faktor utama yang mempengaruhi proses perancangan sebuah kapal. Kapal dengan bentuk lambung yang baik akan menghasilkan hambatan yang efisiensi sehingga operasional kapal dan pergerakan kapal lebih baik. Pada ini penelitian dilakukan dengan memodelkan kapal high speed craft tipe Crew boat panjang 38 meter, lebar 7.6 meter, tinggi 3.65 meter dan draft 1.89 meter. Selanjutnya diselidiki model lambung kapal yang menghasilkan hambatan total paling kecil menggunakan pendekatan studi numerik software (maxsuft hullspeed) metode savitsky dan holtrop dan software Computational Fluid Dynamics (CFD). Hasil penelitian berdasarkan analisa numerik (Maxsuft –Hullspeed) dan CFD menujukkan pada kecepatan sevice bentuk lambung model AXE Bow memiliki nilai hambatan yang lebih kecil dibandingkan model kapal planing hull chine (HPC) dan rounded hull (RH). Hasil perhitungan numerik dan CFD memiliki nilai yang hampir sama pada setiap variasi model. Hasil komparisi yang dilakukan didapatkan selisih total hambatan pada kecepatan 25 knot yaitu  model HPC 1.8 kN, model HPCAB 5.2 kN, model RH 4.8 kN dan model 5.1 kN. Dari perbandingan kedua metode tersebut memiliki selisih cukup kecil yaitu  kurang dari 5%. Selain mendapatkan nilai hambatan Software CFD akan menghasilkan nilai  perbandingan gaya angkat (lift force), dan total pressure yang terdistribusi  pada permukaan model setiap variasi kecepatan.
THE USE OF COMPOSIT MATERIALS ALTERNATIVE FIBERGLASS (COCO FIBERS & RAGS) ON FIBERGLASS SHIP IN TRADITIONAL SHIPYARDS BENGKALIS REGENCY Oni, Romadhoni
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 12, No 3 (2015): Oktober
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9795.929 KB) | DOI: 10.14710/kpl.v12i3.8362

Abstract

The limitations of the current wood raw material nowadays is  a threat to the traditional shipbuilding business. Besides the material is expensive, it is also about the difficulty in bringing the major raw materials, fiberglass, suchas wood fiber MAT and WR ( Woven Roofing). There is plan issues to ban on the use of the fiber within a certain period  that accelerate the research in making the solution to be environment- free fiber. By doing the mechanical testing of coco fibre and rags, then gained streghth the bending and optimal impact and eligible BKI standard and ASTM D- 790 and ASTM D 638 and also the use of fiberglass reinforcement material fiber alternative is expected to save expenses in making that fiberglass. To reduce the environmental waste product that do not decompose in maintaining our health (avoiding toxic substances) against syntetic fiber. The result of bending test of composit and coir fabric is getting by using Bending Elasticity Modulus with average rags of hijab 12,88 Mpa, coco fibre 2,69 Mpa and fiber fabric undershirt 6, 57 Mpa, whereas  for testing the impact obtained average value of rags hijab 0,0808 kg/mm2 coco fibiers-0,16533 kg/mm2 and fiber fabric undershit 0, 00427 kg/mm2
Co-Authors afriantoni afriantoni Aprizawati Aprizawati Bobi Satria Budhi Santoso Budhi Santoso Fazrian Fazrian I.K.A.P Utama Muhammad Ikhsan Nurhasanah Nurhasanah Pardi Pardi Polaris Nasution Rizali Septi Ayu Angrayni Sidik Purwoko Supriyadi Supriyadi Suzdayan Zulyani Zulyani