Local Vibration Analysis and Lightweight Design of Upper Deck in Engine Room

Prasetyo, Rizki Adi (2023) Local Vibration Analysis and Lightweight Design of Upper Deck in Engine Room. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Ship vibration is a prevalent and complex phenomenon that occurs due to the dynamic interactions between a vessel and its surrounding environment. Ship vibration is influenced by a number of elements, including as the propulsion system, hull design, sea condition, and cargo loading. The ship and its onboard systems may be negatively impacted by ship vibration in a number of ways. The overall operational effectiveness and durability of the ship might be reduced by structural fatigue and mechanical damage brought on by prolonged exposure to high vibration. Furthermore, vibrations might affect the safety and comfort of the personnel, sometimes resulting in discomfort and degrading performance during crucial procedures. The capstone project aims to investigate the local vibration properties of the top deck in the engine room and create a lightweight design that can withstand the anticipated vibrational loads in order to address these issues. A prototype upper deck construction will undergo vibration testing, experimental modal analysis, and finite element analysis simulations in order to finish the project. The efficiency of several lightweight materials in lowering the sensitivity of the top deck to vibrations will also be examined by the investigation. The most effective weight minimization can be assessed using Finite Element Analysis (FEA) using Patran and Nastran by comparing various designs on the top deck in engine rooms and modifying the thickness of the plate and changing the bracket shape to minimize resonance and fulfill allowed stresses.
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Getaran kapal adalah fenomena umum dan kompleks yang terjadi karena interaksi dinamis antara kapal dan lingkungan sekitarnya. Getaran kapal dipengaruhi oleh sejumlah elemen. Termasuk sebagai sistem propulsi, hull desihn, kondisi laut, dan holding kargo. Kapal dan sistem onvoardnya mungkin terkena dampak negatif oleh getaran kapal dalam beberapa cara. Efektivitas operasional dan daya tahan kapal secara keseluruhan, dapat dikurangi dengan kelelahan struktural dan kerusakan mekanis yang disebabkan oleh paparan getaran tinggi yang berkepanjangan. Selain itu, getaran dapat mempengaruhi keselamatan dan kenyamanan penumpang, kadang-kadang mengakibatkan ketidaknyamanan dan menurunkan kinerja selama prosedur penting. Tugas akhir ini bertujuan untuk menyelidiki sifat getaran lokal dari deck atas di engine room dan menciptakan desain ringan yang dapat menahan beban getaran yang diantisipasi untuk mengatasi masalah ini. Prototipe konstruksi dek atas akan menjalani pengujian getaran, analisis modal eksperimental, dan simulasi analisis elemen hingga untuk menyelesaikan proyek. Efisiensi beberapa bahan ringan dalam menurunkan sensitivitas dek atas terhadap getaran juga akan diperiksa oleh penyelidikan. Minimalisasi berat yang paling efektif dapat dinilai menggunakan Finite Element Analysis (FEA) menggunakan Patran dan Nastran dengan membandingkan berbagai desain di dek atas di ruang mesin dan memodifikasi ketebalan pelat dan mengubah bentuk braket untuk meminimalkan resonansi dan memenuhi tekanan yang diizinkan.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Vibration, FEA, Lightweight Design, Getaran, Desain Ringan
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM156 Naval architecture V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM297 Ships Designs and drawings V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM761 Stability of ships
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	RIZKI ADI PRASETYO
Date Deposited:	18 Sep 2023 02:05
Last Modified:	18 Sep 2023 02:05
URI:	http://repository.its.ac.id/id/eprint/104269

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