Analisa Pengaruh Aliran Fluida yang Ditimbulkan oleh Thrust Propeller pada Kapal Nelayan terhadap Kekuatan Material dengan Pendekatan CFD

Yuniarto, Kurniawan (2007) Analisa Pengaruh Aliran Fluida yang Ditimbulkan oleh Thrust Propeller pada Kapal Nelayan terhadap Kekuatan Material dengan Pendekatan CFD. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Faktor terbesar yang berpengaruh terhadap kecepatan kapal terletak pada sistem propulsinya. Sistem propulsi pada perahu nelayan terdiri dari tiga bagian yaitu : motor penggerak (umumnya menggunakan outboard engine), sistem transmisi (poros), dan propulsor (type screw propeller). Penelitian untuk meningkatkan daya dorong propeller dari tahun ketahun terus dilakukan dengan meningkatkan efisiensi propeller. Tapi di sisi lain usaha untuk meneliti dimana konsentrasi tegangan yang diakibatkan dari daya dorong propeller masih kurang dilakukan. Dalam penulisan Tugas akhir ini akan dilakukan penelitian tentang pengaruh gaya dorong (thrust) propeller terhadap kekuatan material dari jenis material yang berbeda. Material propeller yang digunakan adalah Nikel Aluminium Bronze dan Mangan Bronze. Analisa perbedaan tekanan dan tegangan geser yang diijinkan dilakukan pada beberapa variasi putaran. Variasi putaran dilakukan empat kali masing-masing 200, 400, 600 dan 800 Rpm. Analisa dilakukan dengan perhitungan secara manual dan menggunakan simulasi software CFD ( Computational Fluid Dinamyc). Dari hasil simulasi didapatkan nilai thrust pada putaran tertentu, kemudian juga dapat diketahui perbedaan tekanan antara sisi face dan back. Dan dari hasil simulasi didapatkan bahwa tegangan geser yang terjadi masih lebih kecil dari tegangan yang diijinkan.
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The most factor that influenced to the speed of ship is on its propulsion system. The propulsion system for fishing vessel is consist of tree parts, they are prime mover (usually is Outbroard Engine), Transmission system (shafting) and propulsor (screw propeller type). The research on the improvement of propeller thrust is utilized year by year continiously in propeller effeciency. But in the other part of research such as in stress concentration that caused by propeller trust is not utilized enough. In this final project will be researched the influence of propeller thrust to material strength for some material substances diverge. The material for propeller that be used are Nikel Aluminium Bronze and Mangan Bronze. The analyzing of pressure difference and shearing stress that allowed is utilized in some variation of rotations. The variation of rotation are 200 rpm, 400 rpm, 600 rpm and 800 rpm. The analyzing is utilized on manual calculation and next be simulated in CFD (Computational Fluid Dynamic) sofware packed. As result of smuilation obtained thrust value for each certain rotation, and also known the pressure difference between face and back of propeller. Besides, known the value of shearing stress is occured still lower than the stress value that allowed.

Item Type:	Thesis (Other)
Additional Information:	RSSP 623.87 Yun a
Uncontrolled Keywords:	CFD, material propeller, Thrust,fluid dynamics. propeller thrust. CFD. material streugth
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	magang .
Date Deposited:	21 Oct 2026 03:48
Last Modified:	21 Oct 2026 03:48
URI:	http://repository.its.ac.id/id/eprint/145747

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