Studi Perbandingan Eksperimen dan Numerik Respon Gerak Dua Bangunan Apung Konfigurasi Side by Side

Bafadhal, Hakim Muhammad (2022) Studi Perbandingan Eksperimen dan Numerik Respon Gerak Dua Bangunan Apung Konfigurasi Side by Side. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Di dunia minyak dan gas pasti akan ada yang namanya bangunan atau struktur entah untuk proses produksi, eksplorasi dan lain sebagainya. Bangunan atau struktur tersebut terdiri tiga jenis, yaitu struktur bangunan terpancang, struktur bangunan terapung dan struktur bangunan tertambat. Struktur bangunan apung bisa menjadi opsi terbaik jika ditinjau dari biaya serta waktu. Hal-hal yang bisa mengganggu bangunan apung ketika beroperasi adalah beban lingkungan. Salah satu contoh operasinya adalah offloading, bisa offloading konfigurasi side by side ataupun tandem. Pada penelitian kali ini untuk studi eksperimen menggunakan model virtual dengan skala 1:80 dan yang numerik menggunakan software ANSYS AQWA dengan beban lingkungan yang bekerja hanya beban gelombang saja. Fokus utamanya yakni respon gerak baik ketika single body maupun konfigurasi side by side. Dari hasil analisis, studi eksprimen didapatkan nilai RAO (Response Amplitude Operator) maksimum untuk mode gerak heave, surge, dan pitch terjadi saat model konfigurasi side by side dengan jarak 0.5 dari lebarnya atau 15 cm. Untuk studi numerik, nilai RAO maksimal gerakan heave ketika single body yakni sebesar 0.69 cm/cm, nilai RAO maksimum gerakan surge terjadi ketika konfigurasi side by side dengan jarak celah 10 cm yakni sebesar 0.71 cm/cm, dan nilai RAO maksimum gerak pitch terjadi ketika model berkonfigurasi side by side dengan jarak celah 10 cm yakni sebesar 1.54 rad/rad.
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In the world of oil and gas, there will definitely be a building or structure for either the production process, exploration and so on. The building or structure consists of three types, namely the fixed building structure, the floating building structure and the moored building structure. Floating structures can be the best option in terms of cost and time. Things that can interfere with floating buildings when operating are environmental loads. One example of its operation is offloading, it can be offloading side by side or tandem configurations. In this study, for experimental studies using virtual models with a scale of 1:80 and numerical ones using ANSYS AQWA software with environmental loads that work only wave loads. The main focus is the motion response both when single body and side by side configuration. From the results of the analysis, experimental studies obtained the maximum RAO (Response Amplitude Operator) value for heave, surge, and pitch motion modes occurred when the model was configured side by side with a distance of 0.5 from the width or 15 cm. For numerical studies, the maximum RAO value of heave movement when single body is 0.69 cm/cm, the maximum RAO value of surge movement occurs when side by side configuration with a gap of 10 cm which is 0.71 cm/cm, and the maximum RAO value of pitch motion occurs when the model is configured side by side with a gap of 10 cm which is 1.54 rad/rad. The size of the gap in the side by side configuration both experimentally and numerically does not affect the heave, surge, and pitch motions.

Item Type:	Thesis (Other)
Additional Information:	RSKe 623.83 Baf s-1 2022
Uncontrolled Keywords:	Floating Structure, Side by Side, RAO
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC363 Floating harbors. Including floating docks, piers, etc
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	- Davi Wah
Date Deposited:	13 May 2024 07:46
Last Modified:	13 May 2024 07:46
URI:	http://repository.its.ac.id/id/eprint/107932

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