Analisis Getaran Aluminum Composite Sandwich Panel Pada Dinding Engine Control Room Kapal Akibat Suhu Tinggi

Putri, Faura Aurelia Shakira Mazaya (2026) Analisis Getaran Aluminum Composite Sandwich Panel Pada Dinding Engine Control Room Kapal Akibat Suhu Tinggi. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Engine Control Room (ECR) merupakan ruang penting pada kapal yang terletak berdekatan dengan ruang mesin sehingga berpotensi menerima paparan panas dan getaran dari mesin utama. Kondisi tersebut dapat memengaruhi kenyamanan operator, keandalan peralatan kontrol, serta karakteristik dinamis struktur dinding ECR. Penelitian ini bertujuan menganalisis pengaruh variasi material dan ketebalan core pada sandwich panel aluminium terhadap distribusi temperatur, frekuensi alami, dan respons getaran dinding ECR. Material core yang digunakan adalah Polytetrafluoroethylene (PTFE), Polyether Ether Ketone (PEEK), dan rockwool dengan variasi ketebalan 5 mm dan 10 mm. Analisis dilakukan menggunakan metode elemen hingga melalui simulasi transient thermal, modal analysis, dan harmonic response. Hasil analisis termal menunjukkan bahwa peningkatan ketebalan core dari 5 mm menjadi 10 mm meningkatkan kemampuan isolasi termal seluruh material. Konfigurasi rockwool 10 mm menghasilkan performa isolasi termal terbaik dengan penurunan temperatur dari face plate depan ke face plate belakang sebesar 24,41%. Hasil analisis modal menunjukkan bahwa pengaruh beban panas terhadap frekuensi alami bergantung pada mode getar, yaitu beberapa mode mengalami kenaikan, sedangkan mode lainnya mengalami penurunan frekuensi alami. Konfigurasi PEEK 10 mm menunjukkan kestabilan dinamis terbaik dengan penurunan frekuensi alami maksimum sebesar 3,29%, serta menghasilkan frekuensi alami tertinggi sebelum dan sesudah pembebanan panas, masing-masing sebesar 29,783 Hz dan 29,777 Hz. Hasil harmonic response pada dinding ECR menunjukkan bahwa peningkatan ketebalan core dari 5 mm menjadi 10 mm menurunkan velocity maksimum pada seluruh variasi material. Nilai velocity maksimum PTFE menurun dari 4,891 mm/s menjadi 4,010 mm/s, PEEK dari 4,777 mm/s menjadi 3,863 mm/s, dan rockwool dari 4,500 mm/s menjadi 3,970 mm/s. Konfigurasi PEEK 10 mm menghasilkan respons getaran terendah dan memenuhi kriteria kenyamanan berdasarkan ISO 6954. Dengan demikian, rockwool 10 mm lebih unggul dalam aspek isolasi termal, sedangkan PEEK 10 mm merupakan konfigurasi paling optimal dalam mempertahankan kestabilan frekuensi alami dan mereduksi respons getaran dinding ECR.
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The Engine Control Room (ECR) is an important compartment on a ship located near the engine room and is therefore potentially exposed to heat and vibration generated by the main engine. These conditions may affect operator comfort, the reliability of control equipment, and the dynamic characteristics of the ECR wall structure. This study aims to analyze the effects of core material and thickness variations in aluminum sandwich panels on the temperature distribution, natural frequencies, and vibration response of the ECR wall. The core materials investigated were Polytetrafluoroethylene (PTFE), Polyether Ether Ketone (PEEK), and rockwool, with thickness variations of 5 mm and 10 mm. The analysis was conducted using the finite element method through transient thermal, modal analysis, and harmonic response simulations. The thermal analysis results show that increasing the core thickness from 5 mm to 10 mm improves the thermal insulation performance of all materials. The 10 mm rockwool configuration provides the best thermal insulation performance, with a temperature reduction of 24.41% between the front and rear face plates. The modal analysis results indicate that the effect of thermal loading on natural frequency depends on the vibration mode, with some modes experiencing an increase while others experiencing a decrease in natural frequency. The 10 mm PEEK configuration demonstrates the best dynamic stability, with a maximum natural frequency reduction of 3.29%, and produces the highest natural frequencies before and after thermal loading, at 29.783 Hz and 29.777 Hz, respectively. The harmonic response results for the ECR wall show that increasing the core thickness from 5 mm to 10 mm reduces the maximum vibration velocity for all material variations. The maximum velocity decreases from 4.891 mm/s to 4.010 mm/s for PTFE, from 4.777 mm/s to 3.863 mm/s for PEEK, and from 4.500 mm/s to 3.970 mm/s for rockwool. The 10 mm PEEK configuration produces the lowest vibration response and satisfies the comfort criteria specified in ISO 6954. Therefore, 10 mm rockwool is superior in terms of thermal insulation, while 10 mm PEEK is the most optimal configuration for maintaining natural frequency stability and reducing the vibration response of the ECR wall.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Engine Control Room, sandwich panel, PTFE, PEEK, rockwool, frekuensi alami, beban panas, harmonic response, Engine Control Room, sandwich panel, PTFE, PEEK, rockwool, natural frequency, thermal loading, harmonic response.
Subjects:	T Technology > T Technology (General) > T57.62 Simulation V Naval Science > V Naval Science (General) V Naval Science > V Naval Science (General) > V220 Naval ports, bases, reservations, docks, etc.
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Faura Aurelia Shakira Mazaya Putri
Date Deposited:	04 Aug 2026 07:15
Last Modified:	04 Aug 2026 07:41
URI:	http://repository.its.ac.id/id/eprint/143324

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