-, Fawwaz (2016) Analisis Redaman Gelombang Pada Floating Breakwater Tipe Bambu. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Dewasa ini kerusakan pantai terus meningkat. Hal ini mengarah pada
kebutuhan untuk mengembangkan struktur pemecah gelombang yang lebih efisien
baik apung maupun fixed. Salah satu yang sedang berkembang dan banyak diteliti
adalah floating breakwater. Dengan keunggulan tersendiri dibanding dengan fixed
breakwater, floating breakwater dinilai mampu melindungi pantai. Bambu
merupakan salah satu material yang baik untuk floating breakwater karena sifat
dasarnya yang kuat dan mengapung. Penelitian dengan uji model fisik di
Laboratorium Lingkungan dan Energi Laut Jurusan Teknik Kelautan Fakultas
Teknologi Kelautan Institut Teknologi Sepuluh Nopember bertujuan untuk
mengetahui redaman gelombang dari struktur floating breakwater. Variabel yang
digunakan adalah tinggi gelombang H, periode gelombang T, dan bentuk model
dengan skala model 1:10. Parameter yang digunakan adalah wave steepness
( ), tinggi gelombang awal , periode gelombang awal , dan spektrum
gelombang.
Hasil penelitian menunjukkan bahwa koefisien transmisi (Kt) berbanding
terbalik dengan dan berbanding lurus dengan dan . Dalam penelitian
pada gelombang regular Kt terkecil diperoleh 0.731378 pada kedalaman 80 cm.
Dan penelitian yang dilakukan pada gelombang irregular Kt terkecil diperoleh
0.634615 pada kedalaman 60 cm dengan bentuk model N.
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The needs for more efficient breakwater structure are escalating due to
the increasement of coastal damages. Floating breakwaters studies are now
developing, with some advantages that makes them worthy to be compared with
fixed breakwaters. Bamboo is considered a good material for floating breakwater
due to its natural properties which is strong, ductile and floating. An experiment
with physical model is being held at Laboratory of Environment and Marine
Energy, Department of Ocean Engineering, Faculty of Marine Technology,
Sepuluh Nopember Institute of Technology aiming at discovering the
transmission coefficient of floating breakwater structure. Some variables as wave
height (H), wave period (T), as well as some parameters such as wave steepness
(H/gT2), initial wave height (Hi), intial period (Ti), and wave spectrum will be
observered in this study.
The results of the experiments, show that transmission coefficient is
inversely propotional to wave steepness, but is propotional to Hi and Ti. On the
regular wave experiments, the results show that the smallest transmission
coefficient is 0.73, occured at 80 cm water depth. However, On the irregular wave
experiments, the results show that the smallest transmission coefficient is 0.63
occured at 60 cm water depth, using the N model bamboo
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKe 627.24 Faw a |
| Uncontrolled Keywords: | Floating breakwater, Bambu, Koefisien transmisi, Wave steepness |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 11 Sep 2017 04:02 |
| Last Modified: | 26 Dec 2018 02:06 |
| URI: | http://repository.its.ac.id/id/eprint/48824 |
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