Optimasi Geometri Rudder untuk Meningkatkan Performa Manuver USV

Ahmad, Ro'isul Fadli (2024) Optimasi Geometri Rudder untuk Meningkatkan Performa Manuver USV. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Unmanned Surface Vehicle (USV) adalah wahana perairan yang dapat beroperasi tanpa awak atau kru. USV menjadi solusi tepat dan ringan untuk berbagai aplikasi, dari keperluan survei hingga militer. Hal ini didukung oleh keunggulan yang ditawarkan, seperti biaya operasi lebih rendah, tingkat otomasi lebih tinggi, tingkat keselamatan personel lebih tinggi, dan tentunya fleksibilitas daerah operasi. Oleh karenanya, USV banyak digunakan dalam berbagai keperluan, terutama di bidang militer dan penelitian. Dalam penggunaannya, terutama di kedua bidang tersebut, maneuverability atau performa manuver termasuk salah satu faktor kunci keandalan USV dalam menjalankan misi sehingga USV dituntut untuk memiliki maneuverability sebaik mungkin. Untuk memperoleh maneuverability sebaik mungkin, perlu dilakukan improvisasi terhadap performa steering USV yang dipengaruhi oleh sistem kontrolnya. Improvisasi sistem kontrol USV dapat dilakukan pada beberapa aspek, salah satunya steering equipment seperti rudder. Namun, riset terhadap steering equipment untuk USV, khususnya rudder, belum banyak dilakukan sedangkan steering equipment sendiri adalah salah satu komponen kunci dalam maneuverability USV layaknya pada kapal. Oleh karena itu, dilakukan riset untuk meningkatkan performa manuver maneuverability melalui perubahan karakteristik geometris rudder. Perubahan tersebut dilakukan melalui optimasi untuk memodifikasi karakteristik geometris rudder hingga didapatkan karakter rudder paling optimal sesuai parameter dan variabel yang di-input untuk variasi rudder foil yang terdiri dari NACA 0012, NACA 16-018, dan NACA 64(3)-018. Optimasi dilakukan melalui algoritma Multi-objective genetic algorithm dengan fungsi objektif meminimalisir diameter turning circle melalui peningkatan koefisien CL dan CD. Program optimasi dibuat dengan bahasa pemrograman MATLAB yang terintegrasi dengan Python untuk program prediksi turning circle. Dari optimasi pada foil NACA 0012, NACA 16-018, dan NACA 64(3)-018 sebagai foil basis, diperoleh rudder foil optimal yang kemudian difabrikasi untuk keperluan eksperimen. Dari eksperimen yang dilakukan, diperoleh diameter turning circle rudder foil terkecil dicapai oleh variasi foil NACA 64(3)-018 yakni sebesar 2,6895 m yang merupakan 20,28% lebih kecil dibandingkan diameter turning circle dari existing rudder.
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An Unmanned Surface Vehicle (USV) is an aquatic vehicle that can operate without a crew. USVs are the right and lightweight solution for various applications, from surveying to military purposes. This is supported by the advantages offered, such as lower operating costs, higher levels of automation, higher levels of personnel safety, and of course the flexibility of the operating area. Therefore, USVs are widely used in various purposes, especially in the military and research fields. In its use, especially in these two fields, maneuverability or maneuvering performance is one of the key factors for the reliability of USVs in carrying out missions so that USVs are required to have the best possible maneuverability. To obtain the best possible maneuverability, it is necessary to improvise the steering performance of the USV which is influenced by its control system. Improvisation of the USV control system can be done in several aspects, one of which is steering equipment such as rudder. However, there has not been much research on steering equipment for USVs, especially rudder, while steering equipment itself is one of the key components in USV maneuverability like on a ship. Therefore, research was conducted to improve maneuverability performance through changes in the geometric characteristics of the rudder. The changes are made through optimization to modify the geometric characteristics of the rudder until the most optimal rudder character is obtained according to the parameters and variables inputted for the rudder foil variations consisting of NACA 0012, NACA 16-018, and NACA 64(3)-018. The optimization is performed through a multi-objective genetic algorithm with the objective function of minimizing the turning circle diameter through increasing the CL and CD coefficients. The optimization program is made with MATLAB programming language integrated with Python for turning circle prediction program. From the optimization on NACA 0012, NACA 16-018, and NACA 64(3)-018 foils as the base foil, the optimal rudder foil is obtained which is then fabricated for experimental purposes. From the experiments conducted, the smallest rudder foil turning circle diameter was achieved by the NACA 64(3)-018 foil variation of 2.6895 m which is 20.28% smaller than the turning circle diameter of the existing rudder.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Optimasi, Rudder, Turning Circle, Unmanned Surface Vehicle, Optimization, Rudder, Turning Circle, Unmanned Surface Vehicle
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM156 Naval architecture V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM161 Ships--Hydrodynamics V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM365 Remote submersibles. Autonomous vehicles.
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Ro'isul Fadli Ahmad
Date Deposited:	08 Aug 2024 11:31
Last Modified:	08 Aug 2024 11:31
URI:	http://repository.its.ac.id/id/eprint/112518

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