Alat Bantu Uji Ultrasonic Test (UT) Immersion untuk Pengujian Baut Komponan Kapal yang Mengalami Crack

Radityo, Sandi Monang (2021) Alat Bantu Uji Ultrasonic Test (UT) Immersion untuk Pengujian Baut Komponan Kapal yang Mengalami Crack. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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	Text 04111740000064-Undergraduate_Thesis.pdf Restricted to Repository staff only Download (8MB) | Request a copy

Abstract

Ada banyak komponen yang terletak pada sebuah kapal. Pada proses kapal berlayar diperlukan sinergi antara komponen satu dengan yang lainnya. Baut adalah salah satu komponen yang penting dalam kapal karena baut itu sendiri akan menggabungkan komponen-komponen lain dalam kapal. Tapi sangat disayangkan ada banyak kejadian dimana baut sering mengalami retak pada saat kapal beroperasi. Pada saat baut mengalami retak maka kualitas kapal akan menurun. Dengan menurunnya kualitas kapal akan memperbesar resiko kecelakaan. Oleh karena itu dibutuhkan jasa untuk mereparasi kapal tersebut. Penelitian ini bertujuan agar mempermudah teknisi dalam mencari retak pada baut yang telah mengalami retak pada saat beroperasi. Baut yang digunakan adalah baut berbahan baja karbon dengan ukuran diameter 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm. Retak buatan yang diberikan pada setiap baut berjumlah dua retak pada bagian pangkal baut dan pada bagian ulir baut. Probe yang digunakan berdiameter 6 mm dengan frekuensi 10 MHz. Hasil dari penelitian ini menunjukan bahwa alat bantu uji ultrasonic testing immersion ini dapat mendeteksi retak pada baut diameter 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, dan 20 mm. Baut 8 mm tidak dapat terdeteksi karena diameter baut terlalu kecil sehingga gelombang yang dipancarkan tidak sempurna. Dengan membandingkan hasil dan teknis pengujian dari metode immersion dan contact, penelitian ini menujukan bahwa pengujian dengan metode immersion lebih cocok untuk pengujian baut.
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There are many components located on a ship. In the process of sailing ships, synergy between components is needed with each other. Bolts are one of the important components in the ship because the bolt itself will combine other components in the ship. But it is very unfortunate that there are many incidents where the bolts often crack when the ship is operating. When the bolt cracks, the quality of the ship will decrease. With the decline in the quality of the ship will increase the risk of accidents. Therefore, services are needed to repair the ship. This study aims to make it easier for technicians to find cracks in bolts that have cracked during operation. The bolts used are carbon steel bolts with diameters of 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm. The artificial cracks given to each bolt amounted to two cracks at the base of the bolt and at the screw thread. The probe used is 6 mm in diameter with a frequency of 10 MHz. The results of this study indicate that this ultrasonic testing immersion test tool can detect cracks in bolts with diameters of 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, and 20 mm. The 8 mm bolt could not be detected because the diameter of the bolt is too small so that the emitted wave is not perfect.By comparing the results and technical testing of the immersion and contact methods, this study shows that the immersion method is more suitable for bolt testing.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Baut, Retak, Ultrasonic Test Immersion, Bolts, Crack, Ultrasonic Testing Immersion
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA418.16 Materials--Testing. V Naval Science > V Naval Science (General) V Naval Science > VC Naval Maintenance
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Sandi Monang Radityo
Date Deposited:	03 Sep 2021 03:23
Last Modified:	03 Sep 2021 03:23
URI:	http://repository.its.ac.id/id/eprint/91419

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