Perancangan Mekanisme Sistem Transmisi Contra Rotating Propellers

Putra, David Mahendra (2018) Perancangan Mekanisme Sistem Transmisi Contra Rotating Propellers. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Secara umum sistem penggerak di kapal terdiri dari tiga komponen utama, yaitu motor penggerak utama, sistem transmisi dan alat gerak. Ketiga komponen sistem penggerak ini dipengaruhi oleh jenis kapal berdasarkan fungsinya dan tugas operasionalnya. Sebagai contoh kapal ikan umumnya memiliki tiga pola operasional, yaitu pencarian ikan, pengejaran ikan dan penangkapan ikan. guna memenuhi kebutuhan tersebut maka kapal ikan harus memiliki sistem propulsi yang handal. Salah satu komponen penggerak kapal yang dapat dikembangkan adalah sistem transmisi, dalam hal ini adalah gear box. Gear box berfungsi untuk menambah atau mengurangi putaran dan merubah arah putaran. Kebanyakan gear box berfungsi untuk mengurangi kecepatan putaran propeller. Salah satu jenis penggerak kapal yang dikembangkan adalah contra rotating propellers. Baling – baling ini mempunyai dual-coaxial propellers yaitu dua propeller yang dipasang dalam satu sumbu poros, yang tersusun satu didepan yang lainnya dan berputar saling berlawanan arah. Contra rotating propellers memiliki efisiensi diatas single screw propeller. Untuk mendukung performa lebih handal, maka perlu dilakukan pengembangan terkait sistem propulsinya. Oleh karena itu dilakukan perancangan mekanisme sistem transmisi contra rotating propellers untuk kapal ikan ukuran 30 GT dengan mesin bertenaga 120 HP. Dengan dilakukan perhitungan dan perencanaan didapatkan hasil gear box untuk contra rotating propellers adalah menggunakan roda gigi miring dan roda gigi kerucut. ======================================================================================================= Ship’s propulsion system consists of three main components. They are main engine, transmission system and propulsor. These components influenced by the type of vessel based on its function and operational. For example, fishing vessels have three operational, there are search fishes, pursuit the fish and fishing. The operational conditions are related to their function, to meet those requirements, they must have a reliable propulsion system. Either, the propulsion components that can be developed is the transmission system, that is gear box. Gearbox used to increase or decrease rotation and change the direction. Most of gear boxes work to reduce the speed of the propeller rotation. One type of this system is contra rotating propellers. These propellers have double coaxial propellers with two propellers mounted in a single axis which are arranged each other and have an opposite directions. The efficiency of this type is higher than single screw propeller. For better performance, it is necessary to develop a propulsion system. This research is to study the performance doing the mechanism designed of transmission system the propeller rotates for 30 GT with 120 HP vessel. The calculation and improvement of the gearbox results for contra rotating propellers are using the helical gears and bevel gear.

Item Type: Thesis (Undergraduate)
Additional Information: RSSP 623.873 Put p-1 3100018077989
Uncontrolled Keywords: Sistem transmisi, Gear box, Contra rotating propellers
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM731 Marine Engines
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM753 Propellers
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM773 Ship propulsion, Electric
Divisions: Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User: Putra David Mahendra
Date Deposited: 04 Dec 2020 02:56
Last Modified: 04 Dec 2020 02:56
URI: https://repository.its.ac.id/id/eprint/56123

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