Extreme Significant Wave Height Map of Indonesia Based on SEAFINE and ERA5 Database

Wurjanto, Andojo; Mukhti, Julfikhsan Ahmad; Wirasti, Hijir Della

doi:10.5614/j.eng.technol.sci.2021.53.1.10

Cited by 8 publications

(7 citation statements)

References 9 publications

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“…In this study, the Hexaloc unit is assumed to have KD same as the hexapod KD 8.0. Two slope levels are 1:1.5 [6] waves' height varies from a minimum of 1 m to a maximum of 10 m following Indonesia's 100-yearly significant wave height [7]. According to this estimation, the wave with a height of more than 4 meters, the weight on individual units is more than 5 tons.…”

Section: Figure 2 Comparison Hexaloc With Hexapod and A-jacksmentioning

confidence: 95%

Numerical Study of the of Proposed Hexaloc Concrete Armor Units under Static Loading

Irawan,

Armono

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Concrete armor units are commonly used to protect shorelines and rubble mound coastal structures. This paper presents the numerical modeling test results for the proposed Hexaloc armor unit under static load. The model shows some value of tensile stress exceeds the critical stress. It was found that the cracking occurred at the top surface of the leg. In the design, the moment due to hydrodynamic and impact loads is not permitted to exceed the cracking moment.

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Section: Figure 2 Comparison Hexaloc With Hexapod and A-jacksmentioning

confidence: 95%

Numerical Study of the of Proposed Hexaloc Concrete Armor Units under Static Loading

Irawan,

Armono

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Significant wave height (𝐻𝑠) refers to the average height of the top one-third of a wave group used for a variety of applications, including ocean energy utilization [20]. Accurate significant wave height (Hs) prediction is crucial for marine renewable energy development [19].…”

Section: Significant Wave Heightmentioning

confidence: 99%

Ocean Wave Energy Potential in Southern Waters of Malang

Setyawan,

Sartimbul,

Fuad

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Ocean or marine energy has immense renewable energy capability, able to provide more than double the world’s current electricity consumption. Ocean energy is considered a non-polluting, renewable source of energy. The research was conducted in the waters of South Malang, East Java Province. This research utilizes wave modeling data that has been picture confirmed and processed within one year, in 2022. This procedure will yield the monthly height, period, and direction of wave arrival. The data used to create a map of the location of wave energy in South Malang comes from previously created wave energy maps. This location map is the result of an overlay of multiple prior maps in order to create a site that can be developed for the usage of wave energy. According to the results, the southern locations of Donomulyo, Bantur, and Sumbermanjing have the most potential for using wave energy for buoy planting. Point 29 is the closest point following point 30 to point 34. However, point 29 is the area covered by the turtle migratory route. Point 34 is the farthest away from the other two places if the distance from the coastline to the potential point is calculated perpendicularly. Despite its distance from the coast, this site experiences the least disturbance when compared to others.

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“…Data Gelombang Perairan Natuna Data gelombang tersebut memiliki parameter statistik yang dirangkum pada Tabel 6. Sebagai perbandingan, tinggi gelombang pada perairan Natuna berkisar antara 5.2 -5.7 meter dan 6.0 -8.0 meter (Muliati, 2019;Wurjanto et al, 2021). Data tinggi gelombang yang digunakan pada penelitian tersebut sama besarnya dengan hasil penelitian kedua namun lebih besar dibandingkan penelitan pertama.…”

Section: Pengolahan Data Gelombangunclassified

“…Struktur di Laut Jawa dan laut tenggara Pulau Sumatera memiliki indeks kehandalan berdasarkan RSR berkisar antara 8.10 sampai 12.63 dan 5.49 (J. R. . Indeks kehandalan sebesar itu diperoleh karena tinggi gelombang desain (𝐻 100 ) di kedua perairan tersebut berkisar 2.0 -5.0 m saja (Wurjanto et al, 2021). Nilai tersebut sangat rendah dibandingkan dengan tinggi gelombang desain dimana standar desain dikembangkan (Wen & Banon, 1991).…”

Section: Analisis Kehandalanunclassified

Kehandalan Struktur Anjungan Lepas Pantai Terpancang Empat Kaki di Perairan Natuna

Hermanto¹,

Nandalianadhira

2022

Rekayasa

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The design of offshore platforms in Indonesia generally uses Working Stress Design (WSD) method rather than Load and Resistance Factor Design (LRFD) method. Whereas the LRFD method produces designs that better describe real conditions with load and capacity factors. The load and capacity factors are obtained from consideration of the uncertainty or randomness of their values. One of the load factors used is the environmental load factor. The environmental load factor of LRFD method is obtained based on environmental characteristics not in Indonesian waters. There are differences in the environmental characteristics of each water. Uncertainty of environmental loads in the offshore platforms design is wave height, current velocities, and wind speed. To get a structure designed according to the characteristics of the waters in Indonesia, an environmental load factor is needed in accordance with the characteristics of Indonesian water. To achieve that, structural reliability analysis is needed. Structures reliabilty represents the possibility of the structure's performance criteria being met which is expressed by the reliability index. The reliability index of structures designed using the WSD method used as a reference for LRFD method. In this study, reliability analysis was carried out using the reserve strength ratio value from the pushover analysis on WSD method. The reliability index of the structure model is 4.10. This value is categorized as high reliability. This results can be used as a reference to determine the environmental load factor of Indonesian water in the future.

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Extreme Significant Wave Height Map of Indonesia Based on SEAFINE and ERA5 Database

Cited by 8 publications

References 9 publications

Numerical Study of the of Proposed Hexaloc Concrete Armor Units under Static Loading

Numerical Study of the of Proposed Hexaloc Concrete Armor Units under Static Loading

Ocean Wave Energy Potential in Southern Waters of Malang

Kehandalan Struktur Anjungan Lepas Pantai Terpancang Empat Kaki di Perairan Natuna

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