ANALISIS PENGGUNAAN MATERIAL FIBER-METAL LAMINATES UNTUK MEREDUKSI GETARAN PADA PEDESTAL TIPE L-EXTENSION DENGAN METODE ELEMEN HINGGA

Mochammad Haiqal Bagaskara, . (2026) ANALISIS PENGGUNAAN MATERIAL FIBER-METAL LAMINATES UNTUK MEREDUKSI GETARAN PADA PEDESTAL TIPE L-EXTENSION DENGAN METODE ELEMEN HINGGA. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.

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Abstract

Excessive engine vibration can significantly degrade ship structural durability. This study investigates the application of Fibre-Metal Laminates (FMLs) on an L-extension pedestal to enhance vibration isolation using the impedance mismatch principle. Using Finite Element Analysis (FEA) via Abaqus, various composite inserts (GFRP, CFRP, UD-CFP) and their placement locations were evaluated. The baseline steel pedestal generated a Total Vibration Level Drop of 21.187 dB and a maximum von Mises stress of 28.62 MPa. Modifying the overall structure effectively maximized vibration energy dissipation. Although the 5-layer GFRP yielded the highest damping with 32.013 dB, it triggered extreme local stress 42.65 MPa. Therefore, the 3-layer AL/UD-CFP/AL configuration on the overall structure is the most optimal variation, successfully balancing excellent damping efficiency with 30.098 dB with the safest structural stress limit 33.71 MPa.

Item Type: Thesis (Skripsi)
Additional Information: [No.Panggil: 2210313056] [Pembimbing: Noverdo Saputra] [Penguji 1: Fakhri Akbar Ayub] [Penguji 2: Wiwin Sulistiyawati]
Uncontrolled Keywords: Ship Structure Vibration, Fibre-Metal Laminates, L-extension Pedestal, Finite Element Analysis, Total Vibration Level Drop
Subjects: V Naval Science > V Naval Science (General)
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions: Fakultas Teknik > Program Studi Teknik Perkapalan (S1)
Depositing User: MOCHAMMAD HAIQAL BAGASKARA
Date Deposited: 27 Aug 2026 03:01
Last Modified: 27 Aug 2026 03:01
URI: http://repository.upnvj.ac.id/id/eprint/52507

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