Studi Perancangan Perangkat Lunak untuk Analisa Identifikasi Kavitasi pada Propeler

Triasniawan, Tutug (2010) Studi Perancangan Perangkat Lunak untuk Analisa Identifikasi Kavitasi pada Propeler. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dalam bidang rekayasa kavitasi didefinisikan sebagai proses pembentukan fase uap dari suatu cairan ketika cairan tersebut mengalami penurunan tekanan pada suhu sekeliling (ambient temperature) yang tetap. Secara umum cairan dikatakan mengalami kavitasi jika di dalam cairan tersebut terlihat adanya gelembung yang terbentuk akibat turunnya tekanan, dalam hal ini tekanan cairan turun di bawah tekanan uap. Untuk dapat memulai timbulnya kavitasi pada tekanan sebesar sekitar tekanan uap diperlukan sejumlah gelembung kecil, disebut inti (nuclei), sering hanya dalam ukuran mikroskopis saja, yang mengandung ukuran gas permanen dan atau uap cairan yang bersangkutan. Kavitasi merupakan fenomena yang merugikan dalam operasional kapal, karena menyebabkan banyak kerugian. Pengaruh yang merugikan tersebut berupa menurunnya efisiensi propeller, merusak material propeller, kecepatan kapal menjadi lebih rendah dan menyebabkan getaran dan bising. Oleh karena itu perlu ada kriteria sederhana yang untuk memperkirakan terjadinya kavitasi, agar dampak negatif dari kavitasi dapat dihindari.
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In the field of engineering changes, cavitations is defined as the process of the forming of a liquid's vapour phase when the pressure of that liquid descend in the constant ambient temperature. Generally, the liquid can be said as having cavitations process when the bubbles rise in it. Those bubbles rise because of the descending of liquid pressure, which descends above the vapour pressure. To start the rising of cavitations in the pressure level in around the vapour pressure, it needs some small bubbles, namely nuclei. These nuclei are often in microscopic size and contain of permanent gas or liquid vapour involved. Cavitations is a disadvantageous phenomenon to the ship operational activities because it results much detriments. Those disadvantageous impacts are the descending of propeller efficiency and the damaging of propeller materials, so that the ship will go with a slower speed and the vibration and uproar will occur. Therefore, it needs some simple criteria to calculate the occurrence of the cavitations process to avoid the negative impacts of cavitations.

Item Type:	Thesis (Other)
Additional Information:	RSSP 005.1 Tri s
Uncontrolled Keywords:	kavitasi, propeller, ambient temperaJure, efiSiensi, cavitations, propeUer, ambient temperature, efficiency
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	magang .
Date Deposited:	22 Oct 2026 08:16
Last Modified:	22 Oct 2026 08:16
URI:	http://repository.its.ac.id/id/eprint/145812

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