Lazuardi, Rafi' Satria (2025) Analisis Perbandingan Kekuatan Kantilever Dan Pilar Pada Geladak Kamar Mesin Menggunakan Metode Elemen Hingga. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Struktur geladak pada kamar mesin kapal memiliki peran penting dalam menopang beban operasional selama masa layanan kapal. Oleh karena itu, pemilihan jenis penumpu geladak yang optimal menjadi hal krusial untuk menjamin kekuatan, kestabilan, dan efisiensi struktur. Penelitian ini bertujuan untuk membandingkan performa dua jenis struktur penumpu geladak, yaitu kantilever dan pilar, dengan menggunakan pendekatan metode elemen hingga (Finite Element Method/FEM). Evaluasi dilakukan berdasarkan tiga parameter utama: tegangan maksimum, deformasi, dan berat total struktur. Hasil analisis menunjukkan bahwa struktur kantilever menghasilkan tegangan sebesar 152,45 MPa dan deformasi sebesar 8,76 mm, keduanya masih berada dalam batas ijin desain. Sebaliknya, struktur pilar menunjukkan tegangan sebesar 159,15 MPa dan deformasi sebesar 8,83 mm, yang masih dalam batas ijin desain. Dari sisi berat, struktur pilar memiliki berat total sebesar 106,25 ton, sedikit lebih ringan dibandingkan kantilever yang mencapai 107,32 ton. Untuk menentukan struktur yang paling efisien secara keseluruhan, digunakan metode Analytical Hierarchy Process (AHP) dengan pembobotan 63,33% untuk tegangan, 26,05% untuk deformasi, dan 10,62% untuk berat. Hasil AHP menunjukkan nilai 0,999 untuk kantilever dan 0,971 untuk pilar. Dengan demikian, disimpulkan bahwa struktur kantilever lebih optimal dalam hal kekuatan struktural, deformasi, dan efektivitas berat, menjadikannya alternatif penumpu geladak yang lebih direkomendasikan dalam desain kamar mesin kapal.
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The deck structure in the ship's engine room plays a crucial role in supporting operational loads throughout the ship's service life. Therefore, selecting the optimal deck support type is crucial to ensure the strength, stability, and efficiency of the structure. This study aims to compare the performance of two types of deck support structures, namely cantilever and pillar, using the finite element method (FEM) approach. The evaluation was carried out based on three main parameters: maximum stress, deformation, and total weight of the structure. The analysis results show that the cantilever structure produces a stress of 152,45 MPa and a deformation of 8,76 mm, both of which are still within the design permit limits. In contrast, the pillar structure shows a stress of 159,15 MPa and a deformation of 8,83 mm, which is close to or even exceeds the safe limit. In terms of weight, the pillar structure has a total weight of 106,25 tons, slightly lighter than the cantilever, which reaches 107,32 tons. To determine the most efficient structure overall, the Analytical Hierarchy Process (AHP) method was employed, with weights of 63,33% for stress, 26,05% for deformation, and 10,62% for weight. The AHP results showed a value of 0,999 for the cantilever and 0,971 for the pillar. Thus, it is concluded that the cantilever structure is more optimal in terms of structural strength, deformation, and weight effectiveness, making it a more recommended alternative deck support in the design of ship engine rooms.
Item Type: | Thesis (Other) |
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Uncontrolled Keywords: | Struktur Kapal, Kamar Mesin, Kantilever, Pilar, Metode Elemen Hingga. Ship Structure, Engine Room, Cantilever, Pillar, Finite Element Method |
Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering |
Divisions: | Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis |
Depositing User: | Rafi' Satria Lazuardi |
Date Deposited: | 04 Aug 2025 08:02 |
Last Modified: | 04 Aug 2025 08:02 |
URI: | http://repository.its.ac.id/id/eprint/126139 |
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