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MATERIAL RELIABILITY STUDY OF HIGH-SPEED SMALL CRAFT UNDER WAVE LOAD Wulandari, Amalia Ika; A, Alamsyah; S, Suardi; Setiawan, Wira; Pawara, Muhammad Uswah; Arifuddin, Andi Mursid Nugraha; Syahab, Husein
Journal of Marine-Earth Science and Technology Vol. 5 No. 3 (2024): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v5i3.3921

Abstract

This study focuses on analyzing the structural characteristics of a small craft constructed using aluminum alloy compared with sandwich material structure. High speed vessels are designed to address key performance challenges such as vessel motion, engine efficiency, fuel consumption, and cargo capacity. However, to endure extreme wave induced loads, enhancement of vessel’s the structural strength is essential, especially in critical areas like the midship section. Analytical models and probabilistic methods are employed to predict structural performance under both constant and random wave loading conditions. Aluminum alloys are commonly chosen for fast boat construction due to their high strength to weight ratio and corrosion resistance. To evaluate structural behavior, simulations are carried out under varying wave heights and directions, providing insight into how the vessel performs in challenging marine environments. Load analysis is conducted using diffraction theory and the JONSWAP spectrum equation to determine the maximum bending moments experienced by the hull. The results show that both aluminum and sandwich structures exhibit similar reliability thresholds under wave-induced loading, but the sandwich structure consistently performs slightly better, with approximately 0.10% higher reliability. This suggests that sandwich materials offer improved structural integrity, making them the more suitable choice for high-speed small craft operating in wave conditions up to 2 meters. This analysis contributes to a deeper understanding of the reliability and performance of these materials, offering valuable guidance for designing and constructing high Small Crafts that perform efficiently and safely in demanding maritime operations.
Stylistic Analysis of Distorted Harmony’s Songs Lyric on Chain Reaction Album Sofyansyah, Aldino Ade; Rahayu, Famala Eka Sanhadi; A, Alamsyah
Ilmu Budaya: Jurnal Bahasa, Sastra, Seni, dan Budaya Vol 7, No 3 (2023): Juli 2023
Publisher : Fakultas Ilmu Budaya Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jbssb.v7i3.8613

Abstract

ABSTRACT Songwriters or poet have their styles in writing their literary works, such as violating the rules or using parallelism to create aesthetic value or emphasize a certain message. One of them is morphological repetition. This study intends to find out the morphological repetitions and their contributions to the meaning of Distorted Harmony song lyrics. To conduct this study, the theory of Leech, Heinrich F. Plett, and Arthur Quinn of morphological repetition and qualitative methods were used in this study. The result of this study showed that there were 8 types of morphological repetition such as polyptoton, antanaclasis, isolcolon, repititio, epizeuxis, diacope, anaphora, and epistrophe. According to the research finding, anaphora was the most frequently used in the Distorted Harmony song lyrics. The conclusion is that Distorted Harmony used morphological repetition in their song lyrics to emphasize the message they convey.ABSTRAK Penulis lagu atau penyair memiliki gaya tersendiri dalam menulis karya sastranya, seperti melanggar aturan atau menggunakan paralelisme untuk menciptakan nilai estetika atau menekankan pesan tertentu. Salah satunya adalah repetisi morfologis. Penelitian ini bertujuan untuk mengetahui repetisi morfologis dan kontribusinya terhadap makna lirik lagu Distorted Harmony. Untuk melakukan penelitian ini, teori dari Leech, Heinrich F. Plett, dan Arthur Quinn tentang pengulangan morfologi dan metode kualitatif digunakan dalam penelitian ini. Hasil penelitian menunjukkan bahwa terdapat 8 jenis repetisi morfologis yaitu poliptoton, antanaclasis, isolcolon, repititio, epizeuxis, diacope, anaphora, dan episthrope. Menurut hasil penelitian, anafora paling sering digunakan dalam lirik lagu Distorted Harmony. Kesimpulannya adalah Distorted Harmony menggunakan repetisi morfologis dalam lirik lagu mereka untuk menekankan pijatan yang mereka sampaikan.